[PATCH] MDEV-34481 optimize away waiting for owned by prepared xa non-unique index record
by Kristian Nielsen 31 Jul '24
by Kristian Nielsen 31 Jul '24
31 Jul '24
From: Andrei <andrei.elkin(a)mariadb.com>
This work partly implements a ROW binlog format MDEV-33455 part
that is makes non-unique-index-only table XA replication safe in RBR.
Existence of at least one non-null unique index has always guaranteed
safety (no hang to error).
Two transaction that update a non-unique-only index table could not be
isolated on slave when on slave they used different non-unique indexes
than on master.
Unsolvable hang could be seen in case the first of the two is a prepared XA
--connection slave_worker_1
xa start 'xid'; /* ... lock here ... */ ; xa prepare 'xid'
while the 2nd being of any kind including of normal type
--connection slave_worker_2
begin; /* ... get lock ... => wait/hang...error out */
was unable to wait up for the conflicting lock, even though
the XA transaction did not really lock target records of the 2nd.
This type of hang was caused by a chosen method the 2nd transaction
employs to reach the target record, which is the index scan. The scanning
orthodoxically just could not step over a record in the way that was
locked by the XA.
However as the in-the-way record can not be targeted by the 2nd
transaction, otherwise the transactions would have sensed the conflict
back on master *and* the other possibility of collecting extra locks by the
'xid' on non-modified records is tacked by MDEV-33454/MDEV-34466,
the non-unique index scanning server/slave-applier layer must not panic at
seeing a timeout error from the engine. Instead the scanning would
just proceed to next possibly free index records of the same key value and
ultimately must reach the target one.
More generally, on the way to its target all busy records belonging to
earlier (binlog order) prepared XA transactions need not be tried locking
by the current non-unique index scanning transaction.
This patch implements the plan for Innodb.
The server layer expects the engine to mark an attempt to wait for
a conflicting lock that belongs to a transaction in prepared state.
The engine won't exercise, need not to, the timeout wait.
When marking is done the timeout error is ignored by the server
and next index record is tried out.
An mtr test checks a scenario in sequential and parallel modes.
---
sql/log_event_server.cc | 37 +++++++++++++++++++++++++-----
sql/rpl_rli.cc | 4 +++-
sql/rpl_rli.h | 14 +++++++++++
sql/sql_class.cc | 30 +++++++++++++++++++-----
storage/innobase/lock/lock0lock.cc | 30 +++++++++++++++++-------
5 files changed, 94 insertions(+), 21 deletions(-)
diff --git a/sql/log_event_server.cc b/sql/log_event_server.cc
index f3d01b7d9ed..166295ed263 100644
--- a/sql/log_event_server.cc
+++ b/sql/log_event_server.cc
@@ -8105,6 +8105,11 @@ int Rows_log_event::find_row(rpl_group_info *rgi)
if (m_key_info)
{
+ bool skip_first_compare= false;
+ bool is_index_unique=
+ (table->key_info->flags & HA_NOSAME) &&
+ !(table->key_info->flags & (HA_NULL_PART_KEY));
+
DBUG_PRINT("info",("locating record using key #%u [%s] (index_read)",
m_key_nr, m_key_info->name.str));
/* We use this to test that the correct key is used in test cases. */
@@ -8149,11 +8154,20 @@ int Rows_log_event::find_row(rpl_group_info *rgi)
HA_READ_KEY_EXACT))))
{
DBUG_PRINT("info",("no record matching the key found in the table"));
- if (error == HA_ERR_KEY_NOT_FOUND)
- error= row_not_found_error(rgi);
- table->file->print_error(error, MYF(0));
- table->file->ha_index_end();
- goto end;
+ if (error == HA_ERR_LOCK_WAIT_TIMEOUT && !is_index_unique &&
+ (rgi->exec_flags & (1 << rpl_group_info::HIT_BUSY_INDEX)))
+ {
+ rgi->exec_flags &= ~(1 << rpl_group_info::HIT_BUSY_INDEX);
+ skip_first_compare= true;
+ }
+ else
+ {
+ if (error == HA_ERR_KEY_NOT_FOUND)
+ error= row_not_found_error(rgi);
+ table->file->print_error(error, MYF(0));
+ table->file->ha_index_end();
+ goto end;
+ }
}
/*
@@ -8222,17 +8236,28 @@ int Rows_log_event::find_row(rpl_group_info *rgi)
/* We use this to test that the correct key is used in test cases. */
DBUG_EXECUTE_IF("slave_crash_if_index_scan", abort(););
- while (record_compare(table, m_vers_from_plain))
+ while (skip_first_compare || record_compare(table, m_vers_from_plain))
{
+ if (skip_first_compare)
+ skip_first_compare= false;
while ((error= table->file->ha_index_next(table->record[0])))
{
DBUG_PRINT("info",("no record matching the given row found"));
if (error == HA_ERR_END_OF_FILE)
error= end_of_file_error(rgi);
+ else if (error == HA_ERR_LOCK_WAIT_TIMEOUT && !is_index_unique &&
+ (rgi->exec_flags & (1 << rpl_group_info::HIT_BUSY_INDEX)))
+ {
+ rgi->exec_flags &= ~(1 << rpl_group_info::HIT_BUSY_INDEX);
+ continue;
+ }
+ DBUG_ASSERT(!(rgi->exec_flags & (1 << rpl_group_info::HIT_BUSY_INDEX)));
+
table->file->print_error(error, MYF(0));
table->file->ha_index_end();
goto end;
}
+ DBUG_ASSERT(!(rgi->exec_flags & (1 << rpl_group_info::HIT_BUSY_INDEX)));
}
}
else
diff --git a/sql/rpl_rli.cc b/sql/rpl_rli.cc
index 3b036cdaa79..2839b6e68b0 100644
--- a/sql/rpl_rli.cc
+++ b/sql/rpl_rli.cc
@@ -2154,12 +2154,14 @@ rpl_group_info::reinit(Relay_log_info *rli)
gtid_ignore_duplicate_state= GTID_DUPLICATE_NULL;
speculation= SPECULATE_NO;
commit_orderer.reinit();
+ exec_flags= 0;
}
rpl_group_info::rpl_group_info(Relay_log_info *rli)
: thd(0), wait_commit_sub_id(0),
wait_commit_group_info(0), parallel_entry(0),
- deferred_events(NULL), m_annotate_event(0), is_parallel_exec(false)
+ deferred_events(NULL), m_annotate_event(0), is_parallel_exec(false),
+ exec_flags(0)
{
reinit(rli);
bzero(¤t_gtid, sizeof(current_gtid));
diff --git a/sql/rpl_rli.h b/sql/rpl_rli.h
index 3f24481839b..a9ec44b58cb 100644
--- a/sql/rpl_rli.h
+++ b/sql/rpl_rli.h
@@ -833,6 +833,15 @@ struct rpl_group_info
RETRY_KILL_KILLED
};
uchar killed_for_retry;
+ enum enum_exec_flags {
+ HIT_BUSY_INDEX= 0
+ };
+ /*
+ Being executed replication event's context. It could contain
+ notification from engine such as attempts to lock already acquired
+ index record.
+ */
+ uint32 exec_flags;
rpl_group_info(Relay_log_info *rli_);
~rpl_group_info();
@@ -960,6 +969,11 @@ struct rpl_group_info
if (!is_parallel_exec)
rli->event_relay_log_pos= future_event_relay_log_pos;
}
+
+ bool is_row_event_execution()
+ {
+ return m_table_map.count() > 0;
+ }
};
diff --git a/sql/sql_class.cc b/sql/sql_class.cc
index 6419a58fbe4..b2321cfd865 100644
--- a/sql/sql_class.cc
+++ b/sql/sql_class.cc
@@ -5418,7 +5418,9 @@ thd_need_wait_reports(const MYSQL_THD thd)
/*
Used by storage engines (currently InnoDB) to report that
one transaction THD is about to go to wait for a transactional lock held by
- another transactions OTHER_THD.
+ another transactions OTHER_THD. Also in case of a non-unique index locking
+ the slave applier is informed on a prepared XA transaction holding
+ an offending lock.
This is used for parallel replication, where transactions are required to
commit in the same order on the slave as they did on the master. If the
@@ -5432,6 +5434,9 @@ thd_need_wait_reports(const MYSQL_THD thd)
slave in the first place. However, it is possible in case when the optimizer
chooses a different plan on the slave than on the master (eg. table scan
instead of index scan).
+ When the latter takes places and the conflict on a non-unique index involves
+ the slave applier the latter needs to know whether the lock onwer is
+ a prepared XA and this is provided.
Storage engines report lock waits using this call. If a lock wait causes a
deadlock with the pre-determined commit order, we kill the later
@@ -5444,20 +5449,33 @@ thd_need_wait_reports(const MYSQL_THD thd)
transaction.
*/
extern "C" int
-thd_rpl_deadlock_check(MYSQL_THD thd, MYSQL_THD other_thd)
+thd_rpl_deadlock_check(MYSQL_THD thd, MYSQL_THD other_thd,
+ bool is_other_prepared, bool is_index_unique,
+ uint *flagged)
{
- rpl_group_info *rgi;
- rpl_group_info *other_rgi;
+ rpl_group_info *rgi= thd ? thd->rgi_slave : NULL;
+ rpl_group_info *other_rgi= other_thd ? other_thd->rgi_slave : NULL;
if (!thd)
return 0;
DEBUG_SYNC(thd, "thd_report_wait_for");
thd->transaction->stmt.mark_trans_did_wait();
+
+ /*
+ Return to the caller the fact of the non-unique index wait lock
+ conflicts with one of a prepared state transaction.
+ */
+ if (!is_index_unique && rgi && rgi->is_row_event_execution()) {
+ if (is_other_prepared && !other_thd)
+ {
+ rgi->exec_flags |= 1 << rpl_group_info::HIT_BUSY_INDEX;
+ (*flagged)++;
+ }
+ }
+
if (!other_thd)
return 0;
binlog_report_wait_for(thd, other_thd);
- rgi= thd->rgi_slave;
- other_rgi= other_thd->rgi_slave;
if (!rgi || !other_rgi)
return 0;
if (!rgi->is_parallel_exec)
diff --git a/storage/innobase/lock/lock0lock.cc b/storage/innobase/lock/lock0lock.cc
index 7b7e7ef3e46..2aeb4774631 100644
--- a/storage/innobase/lock/lock0lock.cc
+++ b/storage/innobase/lock/lock0lock.cc
@@ -61,7 +61,10 @@ my_bool innodb_deadlock_detect;
ulong innodb_deadlock_report;
#ifdef HAVE_REPLICATION
-extern "C" void thd_rpl_deadlock_check(MYSQL_THD thd, MYSQL_THD other_thd);
+extern "C" void thd_rpl_deadlock_check(MYSQL_THD thd, MYSQL_THD other_thd,
+ bool is_prepared= false,
+ bool is_index_uniq= false,
+ uint *flagged= NULL);
extern "C" int thd_need_wait_reports(const MYSQL_THD thd);
extern "C" int thd_need_ordering_with(const MYSQL_THD thd, const MYSQL_THD other_thd);
extern "C" int thd_deadlock_victim_preference(const MYSQL_THD thd1, const MYSQL_THD thd2);
@@ -1874,10 +1877,10 @@ ATTRIBUTE_NOINLINE MY_ATTRIBUTE((nonnull, warn_unused_result))
trx->error_state= DB_DEADLOCK if trx->lock.was_chosen_as_deadlock_victim was
set when lock_sys.wait_mutex was unlocked.
@param trx transaction that may be waiting for a lock
-@param wait_lock lock that is being waited for
+@param wait_timeout either remains or can be zeroed
@return lock being waited for (may have been replaced by an equivalent one)
@retval nullptr if no lock is being waited for */
-static lock_t *lock_wait_rpl_report(trx_t *trx)
+static lock_t *lock_wait_rpl_report(trx_t *trx, ulong& wait_timeout)
{
mysql_mutex_assert_owner(&lock_sys.wait_mutex);
ut_ad(trx->state == TRX_STATE_ACTIVE);
@@ -1886,6 +1889,7 @@ static lock_t *lock_wait_rpl_report(trx_t *trx)
lock_t *wait_lock= trx->lock.wait_lock;
if (!wait_lock)
return nullptr;
+ uint count_non_unique_index_hit= 0;
/* This would likely be too large to attempt to use a memory transaction,
even for wait_lock->is_table(). */
const bool nowait= lock_sys.wr_lock_try();
@@ -1903,6 +1907,8 @@ static lock_t *lock_wait_rpl_report(trx_t *trx)
lock_sys.wait_mutex was unlocked, let's check it. */
if (!nowait && trx->lock.was_chosen_as_deadlock_victim)
trx->error_state= DB_DEADLOCK;
+ if (count_non_unique_index_hit > 0)
+ wait_timeout= 0;
return wait_lock;
}
ut_ad(wait_lock->is_waiting());
@@ -1940,7 +1946,11 @@ static lock_t *lock_wait_rpl_report(trx_t *trx)
lock= lock_rec_get_next(heap_no, lock);
do
if (lock->trx->mysql_thd != thd)
- thd_rpl_deadlock_check(thd, lock->trx->mysql_thd);
+ thd_rpl_deadlock_check(thd, lock->trx->mysql_thd,
+ lock->trx->state == TRX_STATE_PREPARED,
+ (lock->index->is_unique() &&
+ !lock->index->n_nullable),
+ &count_non_unique_index_hit);
while ((lock= lock_rec_get_next(heap_no, lock)));
}
}
@@ -1971,7 +1981,7 @@ dberr_t lock_wait(que_thr_t *thr)
/* InnoDB system transactions may use the global value of
innodb_lock_wait_timeout, because trx->mysql_thd == NULL. */
- const ulong innodb_lock_wait_timeout= trx_lock_wait_timeout_get(trx);
+ ulong innodb_lock_wait_timeout= trx_lock_wait_timeout_get(trx);
const my_hrtime_t suspend_time= my_hrtime_coarse();
ut_ad(!trx->dict_operation_lock_mode);
@@ -2034,7 +2044,6 @@ dberr_t lock_wait(que_thr_t *thr)
const bool row_lock_wait= thr->lock_state == QUE_THR_LOCK_ROW;
timespec abstime;
set_timespec_time_nsec(abstime, suspend_time.val * 1000);
- abstime.MY_tv_sec+= innodb_lock_wait_timeout;
/* Dictionary transactions must wait be immune to lock wait timeouts
for locks on data dictionary tables. Here we check only for
SYS_TABLES, SYS_COLUMNS, SYS_INDEXES, SYS_FIELDS. Locks on further
@@ -2094,10 +2103,15 @@ dberr_t lock_wait(que_thr_t *thr)
lock_sys.wait_start();
#ifdef HAVE_REPLICATION
+ /*
+ innodb_lock_wait_timeout can be zeroed in a specific case of non-unique
+ index locking by slave applier. When that happens no actual waiting for
+ wait_lock is done before the server layer has received the timeout error.
+ */
if (rpl)
- wait_lock= lock_wait_rpl_report(trx);
+ wait_lock= lock_wait_rpl_report(trx, innodb_lock_wait_timeout);
#endif
-
+ abstime.MY_tv_sec+= innodb_lock_wait_timeout;
switch (trx->error_state) {
case DB_SUCCESS:
break;
--
2.39.2
1
0
22 Jul '24
From: Monty <monty(a)mariadb.org>
This commit adds 3 new status variables to 'show all slaves status':
- Master_last_event_time ; timestamp of the last event read from the
master by the IO thread.
- Slave_last_event_time ; Master timestamp of the last event committed
on the slave.
- Master_Slave_time_diff: The difference of the above two timestamps.
All the above variables are NULL until the slave has started and the
slave has read one query event from the master that changes data.
- Added information_schema.slave_status, which allows us to remove:
- show_master_info(), show_master_info_get_fields(),
send_show_master_info_data(), show_all_master_info()
- class Sql_cmd_show_slave_status.
- Protocol::store(I_List<i_string_pair>* str_list) as it is not
used anymore.
- Changed old SHOW SLAVE STATUS and SHOW ALL SLAVES STATUS to
use the SELECT code path, as all other SHOW ... STATUS commands.
Other things:
- Xid_log_time is set to time of commit to allow slave that reads the
binary log to calculate Master_last_event_time and
Slave_last_event_time.
This is needed as there is not 'exec_time' for row events.
- Fixed that Load_log_event calculates exec_time identically to
Query_event.
- Updated RESET SLAVE to reset Master/Slave_last_event_time
- Updated SQL thread's update on first transaction read-in to
only update Slave_last_event_time on group events.
- Fixed possible (unlikely) bugs in sql_show.cc ...old_format() functions
if allocation of 'field' would fail.
---
mysql-test/include/show_slave_status.inc | 2 +-
mysql-test/main/grant_slave_monitor.result | 2 +
mysql-test/main/grant_slave_monitor.test | 2 +
mysql-test/main/information_schema-big.result | 2 +
mysql-test/main/information_schema-big.test | 1 +
.../information_schema-big_embedded.result | 133 +++
.../main/information_schema-big_embedded.test | 43 +
mysql-test/main/information_schema.result | 7 +-
.../information_schema_all_engines.result | 12 +-
mysql-test/main/ps_change_master.test | 4 +-
.../suite/funcs_1/r/is_columns_is.result | 131 +++
.../suite/funcs_1/r/is_tables_is.result | 50 +
.../suite/multi_source/info_logs.result | 12 +-
.../multi_source_slave_alias_replica.result | 6 +
mysql-test/suite/multi_source/simple.result | 18 +
mysql-test/suite/multi_source/syntax.result | 2 +-
mysql-test/suite/perfschema/r/relaylog.result | 4 +-
mysql-test/suite/perfschema/t/relaylog.test | 4 +-
.../rpl/r/master_last_event_time_row.result | 203 ++++
.../rpl/r/master_last_event_time_stmt.result | 71 ++
.../suite/rpl/r/rpl_parallel_sbm.result | 8 +
.../suite/rpl/t/master_last_event_time.inc | 58 ++
.../rpl/t/master_last_event_time_row.cnf | 16 +
.../rpl/t/master_last_event_time_row.test | 168 ++++
.../rpl/t/master_last_event_time_stmt.cnf | 15 +
.../rpl/t/master_last_event_time_stmt.test | 84 ++
mysql-test/suite/rpl/t/rpl_parallel_sbm.test | 42 +
sql/handler.h | 3 +
sql/item.h | 15 +-
sql/log.cc | 18 +-
sql/log_event.cc | 37 +-
sql/log_event.h | 15 +-
sql/log_event_server.cc | 21 +-
sql/protocol.cc | 27 -
sql/protocol.h | 2 +-
sql/rpl_mi.cc | 53 +-
sql/rpl_mi.h | 5 +-
sql/rpl_parallel.cc | 3 +
sql/rpl_rli.cc | 9 +-
sql/rpl_rli.h | 16 +-
sql/slave.cc | 874 ++++++------------
sql/slave.h | 4 +-
sql/sql_class.h | 1 +
sql/sql_cmd.h | 20 -
sql/sql_lex.h | 2 +
sql/sql_parse.cc | 2 +-
sql/sql_prepare.cc | 40 +-
sql/sql_repl.cc | 2 +
sql/sql_show.cc | 245 ++++-
sql/sql_type.cc | 20 +-
sql/sql_yacc.yy | 14 +-
sql/table.h | 13 +-
52 files changed, 1784 insertions(+), 777 deletions(-)
create mode 100644 mysql-test/main/information_schema-big_embedded.result
create mode 100644 mysql-test/main/information_schema-big_embedded.test
create mode 100644 mysql-test/suite/rpl/r/master_last_event_time_row.result
create mode 100644 mysql-test/suite/rpl/r/master_last_event_time_stmt.result
create mode 100644 mysql-test/suite/rpl/t/master_last_event_time.inc
create mode 100644 mysql-test/suite/rpl/t/master_last_event_time_row.cnf
create mode 100644 mysql-test/suite/rpl/t/master_last_event_time_row.test
create mode 100644 mysql-test/suite/rpl/t/master_last_event_time_stmt.cnf
create mode 100644 mysql-test/suite/rpl/t/master_last_event_time_stmt.test
diff --git a/mysql-test/include/show_slave_status.inc b/mysql-test/include/show_slave_status.inc
index 429ed8a5abd..c91e76f1ec5 100644
--- a/mysql-test/include/show_slave_status.inc
+++ b/mysql-test/include/show_slave_status.inc
@@ -97,7 +97,7 @@ if ($all_slaves_status)
{
--die Bug in test case: Both $all_slaves_status and $slave_name are set.
}
- --let $_show_query=SHOW ALL SLAVES STATUS
+ --let $_show_query=SELECT * from information_schema.slave_status
}
if ($slave_name)
{
diff --git a/mysql-test/main/grant_slave_monitor.result b/mysql-test/main/grant_slave_monitor.result
index 61c4ca308cc..75fb07fe317 100644
--- a/mysql-test/main/grant_slave_monitor.result
+++ b/mysql-test/main/grant_slave_monitor.result
@@ -13,6 +13,8 @@ GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, RELOAD, SHUTDOWN, PROCESS, F
#
SHOW SLAVE STATUS;
ERROR 42000: Access denied; you need (at least one of) the SLAVE MONITOR privilege(s) for this operation
+SELECT * from information_schema.slave_status;
+ERROR 42000: Access denied; you need (at least one of) the SLAVE MONITOR privilege(s) for this operation
#
# Verify that having REPLICATION SLAVE ADMIN doesn't allow SHOW RELAYLOG EVENTS
# Expected error: Access denied; you need (at least one of) the REPLICA MONITOR
diff --git a/mysql-test/main/grant_slave_monitor.test b/mysql-test/main/grant_slave_monitor.test
index b5e65ef2cb4..1be9b7e944d 100644
--- a/mysql-test/main/grant_slave_monitor.test
+++ b/mysql-test/main/grant_slave_monitor.test
@@ -38,6 +38,8 @@ SHOW GRANTS;
--echo #
--error ER_SPECIFIC_ACCESS_DENIED_ERROR
SHOW SLAVE STATUS;
+--error ER_SPECIFIC_ACCESS_DENIED_ERROR
+SELECT * from information_schema.slave_status;
--echo #
--echo # Verify that having REPLICATION SLAVE ADMIN doesn't allow SHOW RELAYLOG EVENTS
diff --git a/mysql-test/main/information_schema-big.result b/mysql-test/main/information_schema-big.result
index 8c93cc79f64..cad4078deb5 100644
--- a/mysql-test/main/information_schema-big.result
+++ b/mysql-test/main/information_schema-big.result
@@ -52,6 +52,7 @@ SCHEMA_PRIVILEGES TABLE_SCHEMA
SEQUENCES SEQUENCE_SCHEMA
SESSION_STATUS VARIABLE_NAME
SESSION_VARIABLES VARIABLE_NAME
+SLAVE_STATUS Connection_name
SPATIAL_REF_SYS SRID
SQL_FUNCTIONS FUNCTION
STATISTICS TABLE_SCHEMA
@@ -117,6 +118,7 @@ SCHEMA_PRIVILEGES TABLE_SCHEMA
SEQUENCES SEQUENCE_SCHEMA
SESSION_STATUS VARIABLE_NAME
SESSION_VARIABLES VARIABLE_NAME
+SLAVE_STATUS Connection_name
SPATIAL_REF_SYS SRID
SQL_FUNCTIONS FUNCTION
STATISTICS TABLE_SCHEMA
diff --git a/mysql-test/main/information_schema-big.test b/mysql-test/main/information_schema-big.test
index 89d7d877fb2..8baaaab6e0c 100644
--- a/mysql-test/main/information_schema-big.test
+++ b/mysql-test/main/information_schema-big.test
@@ -1,4 +1,5 @@
-- source include/have_innodb.inc
+-- source include/not_embedded.inc
# check that CSV engine was compiled in, as the result of the test depends
# on the presence of the log tables (which are CSV-based).
diff --git a/mysql-test/main/information_schema-big_embedded.result b/mysql-test/main/information_schema-big_embedded.result
new file mode 100644
index 00000000000..8c93cc79f64
--- /dev/null
+++ b/mysql-test/main/information_schema-big_embedded.result
@@ -0,0 +1,133 @@
+#
+# Bug#18925: subqueries with MIN/MAX functions on INFORMATION_SCHEMA
+#
+SELECT t.table_name, c1.column_name
+FROM information_schema.tables t
+INNER JOIN
+information_schema.columns c1
+ON t.table_schema = c1.table_schema AND
+t.table_name = c1.table_name
+WHERE t.table_schema = 'information_schema' AND
+c1.ordinal_position =
+( SELECT COALESCE(MIN(c2.ordinal_position),1)
+FROM information_schema.columns c2
+WHERE c2.table_schema = t.table_schema AND
+c2.table_name = t.table_name AND
+c2.column_name LIKE '%SCHEMA%'
+ )
+AND t.table_name NOT LIKE 'innodb%' and t.table_name NOT LIKE "OPTIMIZER_TRACE%";
+table_name column_name
+ALL_PLUGINS PLUGIN_NAME
+APPLICABLE_ROLES GRANTEE
+CHARACTER_SETS CHARACTER_SET_NAME
+CHECK_CONSTRAINTS CONSTRAINT_SCHEMA
+CLIENT_STATISTICS CLIENT
+COLLATIONS COLLATION_NAME
+COLLATION_CHARACTER_SET_APPLICABILITY COLLATION_NAME
+COLUMNS TABLE_SCHEMA
+COLUMN_PRIVILEGES TABLE_SCHEMA
+ENABLED_ROLES ROLE_NAME
+ENGINES ENGINE
+EVENTS EVENT_SCHEMA
+FILES TABLE_SCHEMA
+GEOMETRY_COLUMNS F_TABLE_SCHEMA
+GLOBAL_STATUS VARIABLE_NAME
+GLOBAL_VARIABLES VARIABLE_NAME
+INDEX_STATISTICS TABLE_SCHEMA
+KEYWORDS WORD
+KEY_CACHES KEY_CACHE_NAME
+KEY_COLUMN_USAGE CONSTRAINT_SCHEMA
+KEY_PERIOD_USAGE CONSTRAINT_SCHEMA
+OPTIMIZER_COSTS ENGINE
+PARAMETERS SPECIFIC_SCHEMA
+PARTITIONS TABLE_SCHEMA
+PERIODS TABLE_SCHEMA
+PLUGINS PLUGIN_NAME
+PROCESSLIST ID
+PROFILING QUERY_ID
+REFERENTIAL_CONSTRAINTS CONSTRAINT_SCHEMA
+ROUTINES ROUTINE_SCHEMA
+SCHEMATA SCHEMA_NAME
+SCHEMA_PRIVILEGES TABLE_SCHEMA
+SEQUENCES SEQUENCE_SCHEMA
+SESSION_STATUS VARIABLE_NAME
+SESSION_VARIABLES VARIABLE_NAME
+SPATIAL_REF_SYS SRID
+SQL_FUNCTIONS FUNCTION
+STATISTICS TABLE_SCHEMA
+SYSTEM_VARIABLES VARIABLE_NAME
+TABLES TABLE_SCHEMA
+TABLESPACES TABLESPACE_NAME
+TABLE_CONSTRAINTS CONSTRAINT_SCHEMA
+TABLE_PRIVILEGES TABLE_SCHEMA
+TABLE_STATISTICS TABLE_SCHEMA
+TRIGGERS TRIGGER_SCHEMA
+USERS USER
+USER_PRIVILEGES GRANTEE
+USER_STATISTICS USER
+VIEWS TABLE_SCHEMA
+SELECT t.table_name, c1.column_name
+FROM information_schema.tables t
+INNER JOIN
+information_schema.columns c1
+ON t.table_schema = c1.table_schema AND
+t.table_name = c1.table_name
+WHERE t.table_schema = 'information_schema' AND
+c1.ordinal_position =
+( SELECT COALESCE(MIN(c2.ordinal_position),1)
+FROM information_schema.columns c2
+WHERE c2.table_schema = 'information_schema' AND
+c2.table_name = t.table_name AND
+c2.column_name LIKE '%SCHEMA%'
+ )
+AND t.table_name NOT LIKE 'innodb%' and t.table_name NOT LIKE "OPTIMIZER_TRACE%";
+table_name column_name
+ALL_PLUGINS PLUGIN_NAME
+APPLICABLE_ROLES GRANTEE
+CHARACTER_SETS CHARACTER_SET_NAME
+CHECK_CONSTRAINTS CONSTRAINT_SCHEMA
+CLIENT_STATISTICS CLIENT
+COLLATIONS COLLATION_NAME
+COLLATION_CHARACTER_SET_APPLICABILITY COLLATION_NAME
+COLUMNS TABLE_SCHEMA
+COLUMN_PRIVILEGES TABLE_SCHEMA
+ENABLED_ROLES ROLE_NAME
+ENGINES ENGINE
+EVENTS EVENT_SCHEMA
+FILES TABLE_SCHEMA
+GEOMETRY_COLUMNS F_TABLE_SCHEMA
+GLOBAL_STATUS VARIABLE_NAME
+GLOBAL_VARIABLES VARIABLE_NAME
+INDEX_STATISTICS TABLE_SCHEMA
+KEYWORDS WORD
+KEY_CACHES KEY_CACHE_NAME
+KEY_COLUMN_USAGE CONSTRAINT_SCHEMA
+KEY_PERIOD_USAGE CONSTRAINT_SCHEMA
+OPTIMIZER_COSTS ENGINE
+PARAMETERS SPECIFIC_SCHEMA
+PARTITIONS TABLE_SCHEMA
+PERIODS TABLE_SCHEMA
+PLUGINS PLUGIN_NAME
+PROCESSLIST ID
+PROFILING QUERY_ID
+REFERENTIAL_CONSTRAINTS CONSTRAINT_SCHEMA
+ROUTINES ROUTINE_SCHEMA
+SCHEMATA SCHEMA_NAME
+SCHEMA_PRIVILEGES TABLE_SCHEMA
+SEQUENCES SEQUENCE_SCHEMA
+SESSION_STATUS VARIABLE_NAME
+SESSION_VARIABLES VARIABLE_NAME
+SPATIAL_REF_SYS SRID
+SQL_FUNCTIONS FUNCTION
+STATISTICS TABLE_SCHEMA
+SYSTEM_VARIABLES VARIABLE_NAME
+TABLES TABLE_SCHEMA
+TABLESPACES TABLESPACE_NAME
+TABLE_CONSTRAINTS CONSTRAINT_SCHEMA
+TABLE_PRIVILEGES TABLE_SCHEMA
+TABLE_STATISTICS TABLE_SCHEMA
+TRIGGERS TRIGGER_SCHEMA
+USERS USER
+USER_PRIVILEGES GRANTEE
+USER_STATISTICS USER
+VIEWS TABLE_SCHEMA
diff --git a/mysql-test/main/information_schema-big_embedded.test b/mysql-test/main/information_schema-big_embedded.test
new file mode 100644
index 00000000000..0817a6e2be7
--- /dev/null
+++ b/mysql-test/main/information_schema-big_embedded.test
@@ -0,0 +1,43 @@
+-- source include/have_innodb.inc
+-- source include/is_embedded.inc
+
+# check that CSV engine was compiled in, as the result of the test depends
+# on the presence of the log tables (which are CSV-based).
+--source include/have_csv.inc
+
+--echo #
+--echo # Bug#18925: subqueries with MIN/MAX functions on INFORMATION_SCHEMA
+--echo #
+
+--sorted_result
+SELECT t.table_name, c1.column_name
+ FROM information_schema.tables t
+ INNER JOIN
+ information_schema.columns c1
+ ON t.table_schema = c1.table_schema AND
+ t.table_name = c1.table_name
+ WHERE t.table_schema = 'information_schema' AND
+ c1.ordinal_position =
+ ( SELECT COALESCE(MIN(c2.ordinal_position),1)
+ FROM information_schema.columns c2
+ WHERE c2.table_schema = t.table_schema AND
+ c2.table_name = t.table_name AND
+ c2.column_name LIKE '%SCHEMA%'
+ )
+ AND t.table_name NOT LIKE 'innodb%' and t.table_name NOT LIKE "OPTIMIZER_TRACE%";
+--sorted_result
+SELECT t.table_name, c1.column_name
+ FROM information_schema.tables t
+ INNER JOIN
+ information_schema.columns c1
+ ON t.table_schema = c1.table_schema AND
+ t.table_name = c1.table_name
+ WHERE t.table_schema = 'information_schema' AND
+ c1.ordinal_position =
+ ( SELECT COALESCE(MIN(c2.ordinal_position),1)
+ FROM information_schema.columns c2
+ WHERE c2.table_schema = 'information_schema' AND
+ c2.table_name = t.table_name AND
+ c2.column_name LIKE '%SCHEMA%'
+ )
+ AND t.table_name NOT LIKE 'innodb%' and t.table_name NOT LIKE "OPTIMIZER_TRACE%";
diff --git a/mysql-test/main/information_schema.result b/mysql-test/main/information_schema.result
index e0bee79ee3c..7c939064410 100644
--- a/mysql-test/main/information_schema.result
+++ b/mysql-test/main/information_schema.result
@@ -87,6 +87,7 @@ SCHEMA_PRIVILEGES
SEQUENCES
SESSION_STATUS
SESSION_VARIABLES
+SLAVE_STATUS
SPATIAL_REF_SYS
SQL_FUNCTIONS
STATISTICS
@@ -960,6 +961,8 @@ PARTITIONS UPDATE_TIME datetime
PARTITIONS CHECK_TIME datetime
ROUTINES CREATED datetime
ROUTINES LAST_ALTERED datetime
+SLAVE_STATUS Master_last_event_time datetime
+SLAVE_STATUS Slave_last_event_time datetime
TABLES CREATE_TIME datetime
TABLES UPDATE_TIME datetime
TABLES CHECK_TIME datetime
@@ -1336,8 +1339,8 @@ table_schema='information_schema' and
or column_type = 'varchar(27)')
group by column_type order by num;
column_type group_concat(table_schema, '.', table_name) num
-varchar(7) information_schema.ROUTINES,information_schema.VIEWS 2
-varchar(20) information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.FILES,information_schema.FILES,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PROFILING 9
+varchar(7) information_schema.ROUTINES,information_schema.VIEWS,information_schema.SLAVE_STATUS 3
+varchar(20) information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.FILES,information_schema.FILES,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PROFILING,information_schema.SLAVE_STATUS 10
create table t1(f1 char(1) not null, f2 char(9) not null)
default character set utf8;
select CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH from
diff --git a/mysql-test/main/information_schema_all_engines.result b/mysql-test/main/information_schema_all_engines.result
index b413c63b59d..745d03234e8 100644
--- a/mysql-test/main/information_schema_all_engines.result
+++ b/mysql-test/main/information_schema_all_engines.result
@@ -58,6 +58,7 @@ SCHEMA_PRIVILEGES
SEQUENCES
SESSION_STATUS
SESSION_VARIABLES
+SLAVE_STATUS
SPATIAL_REF_SYS
SQL_FUNCTIONS
STATISTICS
@@ -144,6 +145,7 @@ SCHEMA_PRIVILEGES TABLE_SCHEMA
SEQUENCES SEQUENCE_SCHEMA
SESSION_STATUS VARIABLE_NAME
SESSION_VARIABLES VARIABLE_NAME
+SLAVE_STATUS Connection_name
SPATIAL_REF_SYS SRID
SQL_FUNCTIONS FUNCTION
STATISTICS TABLE_SCHEMA
@@ -230,6 +232,7 @@ SCHEMA_PRIVILEGES TABLE_SCHEMA
SEQUENCES SEQUENCE_SCHEMA
SESSION_STATUS VARIABLE_NAME
SESSION_VARIABLES VARIABLE_NAME
+SLAVE_STATUS Connection_name
SPATIAL_REF_SYS SRID
SQL_FUNCTIONS FUNCTION
STATISTICS TABLE_SCHEMA
@@ -278,8 +281,6 @@ ENGINES information_schema.ENGINES 1
EVENTS information_schema.EVENTS 1
FILES information_schema.FILES 1
GEOMETRY_COLUMNS information_schema.GEOMETRY_COLUMNS 1
-GLOBAL_STATUS information_schema.GLOBAL_STATUS 1
-GLOBAL_VARIABLES information_schema.GLOBAL_VARIABLES 1
INDEX_STATISTICS information_schema.INDEX_STATISTICS 1
INNODB_BUFFER_PAGE information_schema.INNODB_BUFFER_PAGE 1
INNODB_BUFFER_PAGE_LRU information_schema.INNODB_BUFFER_PAGE_LRU 1
@@ -318,8 +319,7 @@ ROUTINES information_schema.ROUTINES 1
SCHEMATA information_schema.SCHEMATA 1
SCHEMA_PRIVILEGES information_schema.SCHEMA_PRIVILEGES 1
SEQUENCES information_schema.SEQUENCES 1
-SESSION_STATUS information_schema.SESSION_STATUS 1
-SESSION_VARIABLES information_schema.SESSION_VARIABLES 1
+SLAVE_STATUS information_schema.SLAVE_STATUS 1
SPATIAL_REF_SYS information_schema.SPATIAL_REF_SYS 1
STATISTICS information_schema.STATISTICS 1
SYSTEM_VARIABLES information_schema.SYSTEM_VARIABLES 1
@@ -395,6 +395,7 @@ Database: information_schema
| SEQUENCES |
| SESSION_STATUS |
| SESSION_VARIABLES |
+| SLAVE_STATUS |
| SPATIAL_REF_SYS |
| SQL_FUNCTIONS |
| STATISTICS |
@@ -471,6 +472,7 @@ Database: INFORMATION_SCHEMA
| SEQUENCES |
| SESSION_STATUS |
| SESSION_VARIABLES |
+| SLAVE_STATUS |
| SPATIAL_REF_SYS |
| SQL_FUNCTIONS |
| STATISTICS |
@@ -493,5 +495,5 @@ Wildcard: inf_rmation_schema
| information_schema |
SELECT table_schema, count(*) FROM information_schema.TABLES WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test', 'mysqltest') GROUP BY TABLE_SCHEMA;
table_schema count(*)
-information_schema 71
+information_schema 72
mysql 31
diff --git a/mysql-test/main/ps_change_master.test b/mysql-test/main/ps_change_master.test
index 19040917bde..677ad46a787 100644
--- a/mysql-test/main/ps_change_master.test
+++ b/mysql-test/main/ps_change_master.test
@@ -32,8 +32,8 @@ EXECUTE stmt;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
-let $master_host= query_get_value(SHOW SLAVE STATUS, Master_Host, 1);
-let $master_user= query_get_value(SHOW SLAVE STATUS, Master_User, 1);
+let $master_host= `select Master_Host from information_schema.slave_status`;
+let $master_user= `select Master_user from information_schema.slave_status`;
--echo # Master_Host : $master_host
--echo # Master_User : $master_user
diff --git a/mysql-test/suite/funcs_1/r/is_columns_is.result b/mysql-test/suite/funcs_1/r/is_columns_is.result
index 287ea2d905a..85a02d6a6ef 100644
--- a/mysql-test/suite/funcs_1/r/is_columns_is.result
+++ b/mysql-test/suite/funcs_1/r/is_columns_is.result
@@ -388,6 +388,71 @@ def information_schema SESSION_STATUS VARIABLE_NAME 1 NULL NO varchar 64 192 NUL
def information_schema SESSION_STATUS VARIABLE_VALUE 2 NULL NO varchar 4096 12288 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(4096) select NEVER NULL NO NO
def information_schema SESSION_VARIABLES VARIABLE_NAME 1 NULL NO varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
def information_schema SESSION_VARIABLES VARIABLE_VALUE 2 NULL NO varchar 4096 12288 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(4096) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Connection_name 1 NULL NO varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Connect_Retry 7 NULL NO int NULL NULL 10 0 NULL NULL NULL int(10) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Executed_log_entries 59 NULL NO int NULL NULL 10 0 NULL NULL NULL int(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Exec_Master_Log_Pos 24 NULL NO bigint NULL NULL 20 0 NULL NULL NULL bigint(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Gtid_IO_Pos 46 NULL NO varchar 1024 3072 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(1024) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Gtid_Slave_Pos 62 NULL NO varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Last_Errno 21 NULL NO int NULL NULL 10 0 NULL NULL NULL int(4) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Last_Error 22 NULL YES varchar 20 60 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(20) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Last_IO_Errno 37 NULL NO int NULL NULL 10 0 NULL NULL NULL int(4) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Last_IO_Error 38 NULL YES varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Last_SQL_Errno 39 NULL NO int NULL NULL 10 0 NULL NULL NULL int(4) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Last_SQL_Error 40 NULL YES varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_Host 4 NULL YES varchar 255 765 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(255) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_last_event_time 63 NULL YES datetime NULL NULL NULL NULL 0 NULL NULL datetime select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_Log_File 8 NULL NO varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_Port 6 NULL NO int NULL NULL 10 0 NULL NULL NULL int(7) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_Server_Id 42 NULL NO int NULL NULL 10 0 NULL NULL NULL int(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_Slave_time_diff 65 NULL YES bigint NULL NULL 19 0 NULL NULL NULL bigint(10) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_SSL_Allowed 29 NULL YES varchar 7 21 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(7) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_SSL_CA_File 30 NULL YES varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_SSL_CA_Path 31 NULL YES varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_SSL_Cert 32 NULL YES varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_SSL_Cipher 33 NULL YES varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_SSL_Crl 43 NULL YES varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_SSL_Crlpath 44 NULL YES varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_SSL_Key 34 NULL YES varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_SSL_Verify_Server_Cert 36 NULL NO varchar 3 9 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(3) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Master_User 5 NULL YES varchar 384 1152 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(384) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Max_relay_log_size 58 NULL NO bigint NULL NULL 20 0 NULL NULL NULL bigint(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Parallel_Mode 49 NULL NO varchar 15 45 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(15) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Read_Master_Log_Pos 9 NULL NO bigint NULL NULL 20 0 NULL NULL NULL bigint(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Relay_Log_File 10 NULL NO varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Relay_Log_Pos 11 NULL NO bigint NULL NULL 20 0 NULL NULL NULL bigint(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Relay_Log_Space 25 NULL NO bigint NULL NULL 20 0 NULL NULL NULL bigint(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Relay_Master_Log_File 12 NULL NO varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Replicate_Do_DB 15 NULL NO varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Replicate_Do_Domain_Ids 47 NULL NO varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Replicate_Do_Table 17 NULL NO varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Replicate_Ignore_DB 16 NULL NO varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Replicate_Ignore_Domain_Ids 48 NULL NO varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Replicate_Ignore_Server_Ids 41 NULL NO varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Replicate_Ignore_Table 18 NULL NO varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Replicate_Rewrite_DB 56 NULL NO varchar 1024 3072 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(1024) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Replicate_Wild_Do_Table 19 NULL NO varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Replicate_Wild_Ignore_Table 20 NULL NO varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Retried_transactions 57 NULL NO int NULL NULL 10 0 NULL NULL NULL int(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Seconds_Behind_Master 35 NULL YES bigint NULL NULL 19 0 NULL NULL NULL bigint(10) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Skip_Counter 23 NULL NO int NULL NULL 10 0 NULL NULL NULL int(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_DDL_Groups 53 NULL NO bigint NULL NULL 20 0 NULL NULL NULL bigint(20) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_heartbeat_period 61 NULL NO float NULL NULL 9 3 NULL NULL NULL float(9,3) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_IO_Running 13 NULL NO varchar 10 30 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(10) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_IO_State 3 NULL YES varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_last_event_time 64 NULL YES datetime NULL NULL NULL NULL 0 NULL NULL datetime select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_Non_Transactional_Groups 54 NULL NO bigint NULL NULL 20 0 NULL NULL NULL bigint(20) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_received_heartbeats 60 NULL NO int NULL NULL 10 0 NULL NULL NULL int(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_SQL_Running 14 NULL NO varchar 3 9 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(3) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_SQL_Running_State 52 NULL YES varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_SQL_State 2 NULL YES varchar 64 192 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(64) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Slave_Transactional_Groups 55 NULL NO bigint NULL NULL 20 0 NULL NULL NULL bigint(20) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS SQL_Delay 50 NULL NO int NULL NULL 10 0 NULL NULL NULL int(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS SQL_Remaining_Delay 51 NULL YES int NULL NULL 10 0 NULL NULL NULL int(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Until_Condition 26 NULL NO varchar 6 18 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(6) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Until_Log_File 27 NULL YES varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Until_Log_Pos 28 NULL NO bigint NULL NULL 20 0 NULL NULL NULL bigint(10) unsigned select NEVER NULL NO NO
+def information_schema SLAVE_STATUS Using_Gtid 45 NULL YES varchar 15 45 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(15) select NEVER NULL NO NO
def information_schema SPATIAL_REF_SYS AUTH_NAME 2 NULL NO varchar 512 1536 NULL NULL NULL utf8mb3 utf8mb3_general_ci varchar(512) select NEVER NULL NO NO
def information_schema SPATIAL_REF_SYS AUTH_SRID 3 NULL NO int NULL NULL 10 0 NULL NULL NULL int(5) select NEVER NULL NO NO
def information_schema SPATIAL_REF_SYS SRID 1 NULL NO smallint NULL NULL 5 0 NULL NULL NULL smallint(5) select NEVER NULL NO NO
@@ -589,6 +654,7 @@ NULL bigint NULL NULL
NULL datetime NULL NULL
NULL decimal NULL NULL
NULL double NULL NULL
+NULL float NULL NULL
NULL int NULL NULL
NULL smallint NULL NULL
NULL tinyint NULL NULL
@@ -994,6 +1060,71 @@ NULL information_schema SEQUENCES INCREMENT bigint NULL NULL NULL NULL bigint(21
3.0000 information_schema SESSION_STATUS VARIABLE_VALUE varchar 4096 12288 utf8mb3 utf8mb3_general_ci varchar(4096)
3.0000 information_schema SESSION_VARIABLES VARIABLE_NAME varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
3.0000 information_schema SESSION_VARIABLES VARIABLE_VALUE varchar 4096 12288 utf8mb3 utf8mb3_general_ci varchar(4096)
+3.0000 information_schema SLAVE_STATUS Connection_name varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
+3.0000 information_schema SLAVE_STATUS Slave_SQL_State varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
+3.0000 information_schema SLAVE_STATUS Slave_IO_State varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
+3.0000 information_schema SLAVE_STATUS Master_Host varchar 255 765 utf8mb3 utf8mb3_general_ci varchar(255)
+3.0000 information_schema SLAVE_STATUS Master_User varchar 384 1152 utf8mb3 utf8mb3_general_ci varchar(384)
+NULL information_schema SLAVE_STATUS Master_Port int NULL NULL NULL NULL int(7) unsigned
+NULL information_schema SLAVE_STATUS Connect_Retry int NULL NULL NULL NULL int(10)
+3.0000 information_schema SLAVE_STATUS Master_Log_File varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+NULL information_schema SLAVE_STATUS Read_Master_Log_Pos bigint NULL NULL NULL NULL bigint(10) unsigned
+3.0000 information_schema SLAVE_STATUS Relay_Log_File varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+NULL information_schema SLAVE_STATUS Relay_Log_Pos bigint NULL NULL NULL NULL bigint(10) unsigned
+3.0000 information_schema SLAVE_STATUS Relay_Master_Log_File varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+3.0000 information_schema SLAVE_STATUS Slave_IO_Running varchar 10 30 utf8mb3 utf8mb3_general_ci varchar(10)
+3.0000 information_schema SLAVE_STATUS Slave_SQL_Running varchar 3 9 utf8mb3 utf8mb3_general_ci varchar(3)
+3.0000 information_schema SLAVE_STATUS Replicate_Do_DB varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
+3.0000 information_schema SLAVE_STATUS Replicate_Ignore_DB varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
+3.0000 information_schema SLAVE_STATUS Replicate_Do_Table varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
+3.0000 information_schema SLAVE_STATUS Replicate_Ignore_Table varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
+3.0000 information_schema SLAVE_STATUS Replicate_Wild_Do_Table varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
+3.0000 information_schema SLAVE_STATUS Replicate_Wild_Ignore_Table varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
+NULL information_schema SLAVE_STATUS Last_Errno int NULL NULL NULL NULL int(4)
+3.0000 information_schema SLAVE_STATUS Last_Error varchar 20 60 utf8mb3 utf8mb3_general_ci varchar(20)
+NULL information_schema SLAVE_STATUS Skip_Counter int NULL NULL NULL NULL int(10) unsigned
+NULL information_schema SLAVE_STATUS Exec_Master_Log_Pos bigint NULL NULL NULL NULL bigint(10) unsigned
+NULL information_schema SLAVE_STATUS Relay_Log_Space bigint NULL NULL NULL NULL bigint(10) unsigned
+3.0000 information_schema SLAVE_STATUS Until_Condition varchar 6 18 utf8mb3 utf8mb3_general_ci varchar(6)
+3.0000 information_schema SLAVE_STATUS Until_Log_File varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+NULL information_schema SLAVE_STATUS Until_Log_Pos bigint NULL NULL NULL NULL bigint(10) unsigned
+3.0000 information_schema SLAVE_STATUS Master_SSL_Allowed varchar 7 21 utf8mb3 utf8mb3_general_ci varchar(7)
+3.0000 information_schema SLAVE_STATUS Master_SSL_CA_File varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+3.0000 information_schema SLAVE_STATUS Master_SSL_CA_Path varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+3.0000 information_schema SLAVE_STATUS Master_SSL_Cert varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+3.0000 information_schema SLAVE_STATUS Master_SSL_Cipher varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+3.0000 information_schema SLAVE_STATUS Master_SSL_Key varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+NULL information_schema SLAVE_STATUS Seconds_Behind_Master bigint NULL NULL NULL NULL bigint(10)
+3.0000 information_schema SLAVE_STATUS Master_SSL_Verify_Server_Cert varchar 3 9 utf8mb3 utf8mb3_general_ci varchar(3)
+NULL information_schema SLAVE_STATUS Last_IO_Errno int NULL NULL NULL NULL int(4)
+3.0000 information_schema SLAVE_STATUS Last_IO_Error varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+NULL information_schema SLAVE_STATUS Last_SQL_Errno int NULL NULL NULL NULL int(4)
+3.0000 information_schema SLAVE_STATUS Last_SQL_Error varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+3.0000 information_schema SLAVE_STATUS Replicate_Ignore_Server_Ids varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+NULL information_schema SLAVE_STATUS Master_Server_Id int NULL NULL NULL NULL int(10) unsigned
+3.0000 information_schema SLAVE_STATUS Master_SSL_Crl varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+3.0000 information_schema SLAVE_STATUS Master_SSL_Crlpath varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+3.0000 information_schema SLAVE_STATUS Using_Gtid varchar 15 45 utf8mb3 utf8mb3_general_ci varchar(15)
+3.0000 information_schema SLAVE_STATUS Gtid_IO_Pos varchar 1024 3072 utf8mb3 utf8mb3_general_ci varchar(1024)
+3.0000 information_schema SLAVE_STATUS Replicate_Do_Domain_Ids varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+3.0000 information_schema SLAVE_STATUS Replicate_Ignore_Domain_Ids varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+3.0000 information_schema SLAVE_STATUS Parallel_Mode varchar 15 45 utf8mb3 utf8mb3_general_ci varchar(15)
+NULL information_schema SLAVE_STATUS SQL_Delay int NULL NULL NULL NULL int(10) unsigned
+NULL information_schema SLAVE_STATUS SQL_Remaining_Delay int NULL NULL NULL NULL int(10) unsigned
+3.0000 information_schema SLAVE_STATUS Slave_SQL_Running_State varchar 64 192 utf8mb3 utf8mb3_general_ci varchar(64)
+NULL information_schema SLAVE_STATUS Slave_DDL_Groups bigint NULL NULL NULL NULL bigint(20) unsigned
+NULL information_schema SLAVE_STATUS Slave_Non_Transactional_Groups bigint NULL NULL NULL NULL bigint(20) unsigned
+NULL information_schema SLAVE_STATUS Slave_Transactional_Groups bigint NULL NULL NULL NULL bigint(20) unsigned
+3.0000 information_schema SLAVE_STATUS Replicate_Rewrite_DB varchar 1024 3072 utf8mb3 utf8mb3_general_ci varchar(1024)
+NULL information_schema SLAVE_STATUS Retried_transactions int NULL NULL NULL NULL int(10) unsigned
+NULL information_schema SLAVE_STATUS Max_relay_log_size bigint NULL NULL NULL NULL bigint(10) unsigned
+NULL information_schema SLAVE_STATUS Executed_log_entries int NULL NULL NULL NULL int(10) unsigned
+NULL information_schema SLAVE_STATUS Slave_received_heartbeats int NULL NULL NULL NULL int(10) unsigned
+NULL information_schema SLAVE_STATUS Slave_heartbeat_period float NULL NULL NULL NULL float(9,3)
+3.0000 information_schema SLAVE_STATUS Gtid_Slave_Pos varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
+NULL information_schema SLAVE_STATUS Master_last_event_time datetime NULL NULL NULL NULL datetime
+NULL information_schema SLAVE_STATUS Slave_last_event_time datetime NULL NULL NULL NULL datetime
+NULL information_schema SLAVE_STATUS Master_Slave_time_diff bigint NULL NULL NULL NULL bigint(10)
NULL information_schema SPATIAL_REF_SYS SRID smallint NULL NULL NULL NULL smallint(5)
3.0000 information_schema SPATIAL_REF_SYS AUTH_NAME varchar 512 1536 utf8mb3 utf8mb3_general_ci varchar(512)
NULL information_schema SPATIAL_REF_SYS AUTH_SRID int NULL NULL NULL NULL int(5)
diff --git a/mysql-test/suite/funcs_1/r/is_tables_is.result b/mysql-test/suite/funcs_1/r/is_tables_is.result
index c3c53e149b4..21ab57f7595 100644
--- a/mysql-test/suite/funcs_1/r/is_tables_is.result
+++ b/mysql-test/suite/funcs_1/r/is_tables_is.result
@@ -889,6 +889,31 @@ user_comment
Separator -----------------------------------------------------
TABLE_CATALOG def
TABLE_SCHEMA information_schema
+TABLE_NAME SLAVE_STATUS
+TABLE_TYPE SYSTEM VIEW
+ENGINE MEMORY
+VERSION 11
+ROW_FORMAT Fixed
+TABLE_ROWS #TBLR#
+AVG_ROW_LENGTH #ARL#
+DATA_LENGTH #DL#
+MAX_DATA_LENGTH #MDL#
+INDEX_LENGTH #IL#
+DATA_FREE #DF#
+AUTO_INCREMENT NULL
+CREATE_TIME #CRT#
+UPDATE_TIME #UT#
+CHECK_TIME #CT#
+TABLE_COLLATION utf8mb3_general_ci
+CHECKSUM NULL
+CREATE_OPTIONS #CO#
+TABLE_COMMENT #TC#
+MAX_INDEX_LENGTH #MIL#
+TEMPORARY Y
+user_comment
+Separator -----------------------------------------------------
+TABLE_CATALOG def
+TABLE_SCHEMA information_schema
TABLE_NAME SPATIAL_REF_SYS
TABLE_TYPE SYSTEM VIEW
ENGINE MEMORY
@@ -2130,6 +2155,31 @@ user_comment
Separator -----------------------------------------------------
TABLE_CATALOG def
TABLE_SCHEMA information_schema
+TABLE_NAME SLAVE_STATUS
+TABLE_TYPE SYSTEM VIEW
+ENGINE MEMORY
+VERSION 11
+ROW_FORMAT Fixed
+TABLE_ROWS #TBLR#
+AVG_ROW_LENGTH #ARL#
+DATA_LENGTH #DL#
+MAX_DATA_LENGTH #MDL#
+INDEX_LENGTH #IL#
+DATA_FREE #DF#
+AUTO_INCREMENT NULL
+CREATE_TIME #CRT#
+UPDATE_TIME #UT#
+CHECK_TIME #CT#
+TABLE_COLLATION utf8mb3_general_ci
+CHECKSUM NULL
+CREATE_OPTIONS #CO#
+TABLE_COMMENT #TC#
+MAX_INDEX_LENGTH #MIL#
+TEMPORARY Y
+user_comment
+Separator -----------------------------------------------------
+TABLE_CATALOG def
+TABLE_SCHEMA information_schema
TABLE_NAME SPATIAL_REF_SYS
TABLE_TYPE SYSTEM VIEW
ENGINE MEMORY
diff --git a/mysql-test/suite/multi_source/info_logs.result b/mysql-test/suite/multi_source/info_logs.result
index 36065116784..4dca25b8fc7 100644
--- a/mysql-test/suite/multi_source/info_logs.result
+++ b/mysql-test/suite/multi_source/info_logs.result
@@ -94,17 +94,17 @@ MASTER 2.2
# EOF
#
show all slaves status;
-Connection_name Slave_SQL_State Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert Last_IO_Errno Last_IO_Error Last_SQL_Errno Last_SQL_Error Replicate_Ignore_Server_Ids Master_Server_Id Master_SSL_Crl Master_SSL_Crlpath Using_Gtid Gtid_IO_Pos Replicate_Do_Domain_Ids Replicate_Ignore_Domain_Ids Parallel_Mode SQL_Delay SQL_Remaining_Delay Slave_SQL_Running_State Slave_DDL_Groups Slave_Non_Transactional_Groups Slave_Transactional_Groups Replicate_Rewrite_DB Retried_transactions Max_relay_log_size Executed_log_entries Slave_received_heartbeats Slave_heartbeat_period Gtid_Slave_Pos
- Slave has read all relay log; waiting for more updates Waiting for master to send event 127.0.0.1 root MYPORT_1 60 master-bin.000001 <read_master_log_pos> relay.000002 <relay_log_pos> master-bin.000001 Yes Yes 0 0 <read_master_log_pos> <relay_log_space1> None 0 Yes 0 No 0 0 1 No optimistic 0 NULL Slave has read all relay log; waiting for more updates 0 0 0 0 1073741824 7 0 60.000
-MASTER 2.2 Slave has read all relay log; waiting for more updates Waiting for master to send event 127.0.0.1 root MYPORT_2 60 master-bin.000001 <read_master_log_pos> relay-master@00202@002e2.000002 <relay_log_pos> master-bin.000001 Yes Yes 0 0 <read_master_log_pos> <relay_log_space2> None 0 Yes 0 No 0 0 2 No optimistic 0 NULL Slave has read all relay log; waiting for more updates 0 0 0 0 1073741824 7 0 60.000
+Connection_name Slave_SQL_State Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert Last_IO_Errno Last_IO_Error Last_SQL_Errno Last_SQL_Error Replicate_Ignore_Server_Ids Master_Server_Id Master_SSL_Crl Master_SSL_Crlpath Using_Gtid Gtid_IO_Pos Replicate_Do_Domain_Ids Replicate_Ignore_Domain_Ids Parallel_Mode SQL_Delay SQL_Remaining_Delay Slave_SQL_Running_State Slave_DDL_Groups Slave_Non_Transactional_Groups Slave_Transactional_Groups Replicate_Rewrite_DB Retried_transactions Max_relay_log_size Executed_log_entries Slave_received_heartbeats Slave_heartbeat_period Gtid_Slave_Pos Master_last_event_time Slave_last_event_time Master_Slave_time_diff
+ Slave has read all relay log; waiting for more updates Waiting for master to send event 127.0.0.1 root MYPORT_1 60 master-bin.000001 <read_master_log_pos> relay.000002 <relay_log_pos> master-bin.000001 Yes Yes 0 0 <read_master_log_pos> <relay_log_space1> None 0 Yes 0 No 0 0 1 No optimistic 0 NULL Slave has read all relay log; waiting for more updates 0 0 0 0 1073741824 7 0 60.000 NULL NULL NULL
+MASTER 2.2 Slave has read all relay log; waiting for more updates Waiting for master to send event 127.0.0.1 root MYPORT_2 60 master-bin.000001 <read_master_log_pos> relay-master@00202@002e2.000002 <relay_log_pos> master-bin.000001 Yes Yes 0 0 <read_master_log_pos> <relay_log_space2> None 0 Yes 0 No 0 0 2 No optimistic 0 NULL Slave has read all relay log; waiting for more updates 0 0 0 0 1073741824 7 0 60.000 NULL NULL NULL
include/wait_for_slave_to_start.inc
set default_master_connection = 'MASTER 2.2';
include/wait_for_slave_to_start.inc
set default_master_connection = '';
show all slaves status;
-Connection_name Slave_SQL_State Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert Last_IO_Errno Last_IO_Error Last_SQL_Errno Last_SQL_Error Replicate_Ignore_Server_Ids Master_Server_Id Master_SSL_Crl Master_SSL_Crlpath Using_Gtid Gtid_IO_Pos Replicate_Do_Domain_Ids Replicate_Ignore_Domain_Ids Parallel_Mode SQL_Delay SQL_Remaining_Delay Slave_SQL_Running_State Slave_DDL_Groups Slave_Non_Transactional_Groups Slave_Transactional_Groups Replicate_Rewrite_DB Retried_transactions Max_relay_log_size Executed_log_entries Slave_received_heartbeats Slave_heartbeat_period Gtid_Slave_Pos
- Slave has read all relay log; waiting for more updates Waiting for master to send event 127.0.0.1 root MYPORT_1 60 master-bin.000001 <read_master_log_pos> relay.000004 <relay_log_pos> master-bin.000001 Yes Yes 0 0 <read_master_log_pos> <relay_log_space1> None 0 Yes 0 No 0 0 1 No optimistic 0 NULL Slave has read all relay log; waiting for more updates 0 0 0 0 1073741824 6 0 60.000
-MASTER 2.2 Slave has read all relay log; waiting for more updates Waiting for master to send event 127.0.0.1 root MYPORT_2 60 master-bin.000001 <read_master_log_pos> relay-master@00202@002e2.000004 <relay_log_pos> master-bin.000001 Yes Yes 0 0 <read_master_log_pos> <relay_log_space2> None 0 Yes 0 No 0 0 2 No optimistic 0 NULL Slave has read all relay log; waiting for more updates 0 0 0 0 1073741824 6 0 60.000
+Connection_name Slave_SQL_State Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert Last_IO_Errno Last_IO_Error Last_SQL_Errno Last_SQL_Error Replicate_Ignore_Server_Ids Master_Server_Id Master_SSL_Crl Master_SSL_Crlpath Using_Gtid Gtid_IO_Pos Replicate_Do_Domain_Ids Replicate_Ignore_Domain_Ids Parallel_Mode SQL_Delay SQL_Remaining_Delay Slave_SQL_Running_State Slave_DDL_Groups Slave_Non_Transactional_Groups Slave_Transactional_Groups Replicate_Rewrite_DB Retried_transactions Max_relay_log_size Executed_log_entries Slave_received_heartbeats Slave_heartbeat_period Gtid_Slave_Pos Master_last_event_time Slave_last_event_time Master_Slave_time_diff
+ Slave has read all relay log; waiting for more updates Waiting for master to send event 127.0.0.1 root MYPORT_1 60 master-bin.000001 <read_master_log_pos> relay.000004 <relay_log_pos> master-bin.000001 Yes Yes 0 0 <read_master_log_pos> <relay_log_space1> None 0 Yes 0 No 0 0 1 No optimistic 0 NULL Slave has read all relay log; waiting for more updates 0 0 0 0 1073741824 6 0 60.000 NULL NULL NULL
+MASTER 2.2 Slave has read all relay log; waiting for more updates Waiting for master to send event 127.0.0.1 root MYPORT_2 60 master-bin.000001 <read_master_log_pos> relay-master@00202@002e2.000004 <relay_log_pos> master-bin.000001 Yes Yes 0 0 <read_master_log_pos> <relay_log_space2> None 0 Yes 0 No 0 0 2 No optimistic 0 NULL Slave has read all relay log; waiting for more updates 0 0 0 0 1073741824 6 0 60.000 NULL NULL NULL
#
# List of files matching '*info*' pattern
# after slave server restart
diff --git a/mysql-test/suite/multi_source/multi_source_slave_alias_replica.result b/mysql-test/suite/multi_source/multi_source_slave_alias_replica.result
index 4c721a17428..182d9687cb9 100644
--- a/mysql-test/suite/multi_source/multi_source_slave_alias_replica.result
+++ b/mysql-test/suite/multi_source/multi_source_slave_alias_replica.result
@@ -82,6 +82,9 @@ Executed_log_entries 7
Slave_received_heartbeats 0
Slave_heartbeat_period 60.000
Gtid_Slave_Pos
+Master_last_event_time NULL
+Slave_last_event_time NULL
+Master_Slave_time_diff NULL
Connection_name slave2
Slave_SQL_State Slave has read all relay log; waiting for more updates
Slave_IO_State Waiting for master to send event
@@ -144,6 +147,9 @@ Executed_log_entries 7
Slave_received_heartbeats 0
Slave_heartbeat_period 60.000
Gtid_Slave_Pos
+Master_last_event_time NULL
+Slave_last_event_time NULL
+Master_Slave_time_diff NULL
"Command: STOP ALL SLAVES --> STOP ALL REPLICAS"
STOP ALL REPLICAS;
Warnings:
diff --git a/mysql-test/suite/multi_source/simple.result b/mysql-test/suite/multi_source/simple.result
index f9f43d44ca7..006d0aacfbd 100644
--- a/mysql-test/suite/multi_source/simple.result
+++ b/mysql-test/suite/multi_source/simple.result
@@ -80,6 +80,9 @@ Executed_log_entries 7
Slave_received_heartbeats 0
Slave_heartbeat_period 60.000
Gtid_Slave_Pos
+Master_last_event_time NULL
+Slave_last_event_time NULL
+Master_Slave_time_diff NULL
Connection_name slave2
Slave_SQL_State Slave has read all relay log; waiting for more updates
Slave_IO_State Waiting for master to send event
@@ -142,6 +145,9 @@ Executed_log_entries 7
Slave_received_heartbeats 0
Slave_heartbeat_period 60.000
Gtid_Slave_Pos
+Master_last_event_time NULL
+Slave_last_event_time NULL
+Master_Slave_time_diff NULL
#
# MDEV:16437: merge 5.7 P_S replication instrumentation and tables
#
@@ -327,6 +333,9 @@ Executed_log_entries 7
Slave_received_heartbeats 0
Slave_heartbeat_period 60.000
Gtid_Slave_Pos
+Master_last_event_time NULL
+Slave_last_event_time NULL
+Master_Slave_time_diff NULL
Connection_name slave2
Slave_SQL_State Slave has read all relay log; waiting for more updates
Slave_IO_State Waiting for master to send event
@@ -389,6 +398,9 @@ Executed_log_entries 7
Slave_received_heartbeats 0
Slave_heartbeat_period 60.000
Gtid_Slave_Pos
+Master_last_event_time NULL
+Slave_last_event_time NULL
+Master_Slave_time_diff NULL
reset slave 'slave1' all;
show all slaves status;
Connection_name slave2
@@ -453,6 +465,9 @@ Executed_log_entries 7
Slave_received_heartbeats 0
Slave_heartbeat_period 60.000
Gtid_Slave_Pos
+Master_last_event_time NULL
+Slave_last_event_time NULL
+Master_Slave_time_diff NULL
stop all slaves;
Warnings:
Note 1938 SLAVE 'slave2' stopped
@@ -519,6 +534,9 @@ Executed_log_entries 7
Slave_received_heartbeats 0
Slave_heartbeat_period 60.000
Gtid_Slave_Pos
+Master_last_event_time NULL
+Slave_last_event_time NULL
+Master_Slave_time_diff NULL
stop all slaves;
include/reset_master_slave.inc
disconnect slave;
diff --git a/mysql-test/suite/multi_source/syntax.result b/mysql-test/suite/multi_source/syntax.result
index ce60f48c831..7475ff76e58 100644
--- a/mysql-test/suite/multi_source/syntax.result
+++ b/mysql-test/suite/multi_source/syntax.result
@@ -5,7 +5,7 @@ Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File
show slave '' status;
Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert Last_IO_Errno Last_IO_Error Last_SQL_Errno Last_SQL_Error Replicate_Ignore_Server_Ids Master_Server_Id Master_SSL_Crl Master_SSL_Crlpath Using_Gtid Gtid_IO_Pos Replicate_Do_Domain_Ids Replicate_Ignore_Domain_Ids Parallel_Mode SQL_Delay SQL_Remaining_Delay Slave_SQL_Running_State Slave_DDL_Groups Slave_Non_Transactional_Groups Slave_Transactional_Groups Replicate_Rewrite_DB
show all slaves status;
-Connection_name Slave_SQL_State Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert Last_IO_Errno Last_IO_Error Last_SQL_Errno Last_SQL_Error Replicate_Ignore_Server_Ids Master_Server_Id Master_SSL_Crl Master_SSL_Crlpath Using_Gtid Gtid_IO_Pos Replicate_Do_Domain_Ids Replicate_Ignore_Domain_Ids Parallel_Mode SQL_Delay SQL_Remaining_Delay Slave_SQL_Running_State Slave_DDL_Groups Slave_Non_Transactional_Groups Slave_Transactional_Groups Replicate_Rewrite_DB Retried_transactions Max_relay_log_size Executed_log_entries Slave_received_heartbeats Slave_heartbeat_period Gtid_Slave_Pos
+Connection_name Slave_SQL_State Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert Last_IO_Errno Last_IO_Error Last_SQL_Errno Last_SQL_Error Replicate_Ignore_Server_Ids Master_Server_Id Master_SSL_Crl Master_SSL_Crlpath Using_Gtid Gtid_IO_Pos Replicate_Do_Domain_Ids Replicate_Ignore_Domain_Ids Parallel_Mode SQL_Delay SQL_Remaining_Delay Slave_SQL_Running_State Slave_DDL_Groups Slave_Non_Transactional_Groups Slave_Transactional_Groups Replicate_Rewrite_DB Retried_transactions Max_relay_log_size Executed_log_entries Slave_received_heartbeats Slave_heartbeat_period Gtid_Slave_Pos Master_last_event_time Slave_last_event_time Master_Slave_time_diff
#
# Check error handling
#
diff --git a/mysql-test/suite/perfschema/r/relaylog.result b/mysql-test/suite/perfschema/r/relaylog.result
index 7cc87530770..dc611b59b27 100644
--- a/mysql-test/suite/perfschema/r/relaylog.result
+++ b/mysql-test/suite/perfschema/r/relaylog.result
@@ -20,7 +20,7 @@ if (count_write > 0,"MANY", "NONE") as COUNT_WRITE,
if (sum_number_of_bytes_read > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_READ,
if (sum_number_of_bytes_write > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_WRITE
from performance_schema.file_summary_by_instance
-where file_name like "%master-%" order by file_name;
+where file_name like "%master-%" and file_name not like "%sql/share%" order by file_name;
FILE_NAME EVENT_NAME COUNT_READ COUNT_WRITE SUM_NUMBER_OF_BYTES_READ SUM_NUMBER_OF_BYTES_WRITE
master-bin.000001 wait/io/file/sql/binlog MANY MANY MANY MANY
master-bin.000001.idx wait/io/file/sql/gtid_index NONE MANY NONE MANY
@@ -96,7 +96,7 @@ wait/synch/mutex/sql/MYSQL_RELAY_LOG::LOCK_index 0 0 0 0 0
connection slave;
"============ Performance schema on slave ============"
select * from performance_schema.file_summary_by_instance
-where file_name like "%master-%" order by file_name;
+where file_name like "%master-%" and file_name not like "%sql/share%" order by file_name;
FILE_NAME EVENT_NAME OBJECT_INSTANCE_BEGIN COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT COUNT_READ SUM_TIMER_READ MIN_TIMER_READ AVG_TIMER_READ MAX_TIMER_READ SUM_NUMBER_OF_BYTES_READ COUNT_WRITE SUM_TIMER_WRITE MIN_TIMER_WRITE AVG_TIMER_WRITE MAX_TIMER_WRITE SUM_NUMBER_OF_BYTES_WRITE COUNT_MISC SUM_TIMER_MISC MIN_TIMER_MISC AVG_TIMER_MISC MAX_TIMER_MISC
select
substring(file_name, locate("slave-", file_name)) as FILE_NAME,
diff --git a/mysql-test/suite/perfschema/t/relaylog.test b/mysql-test/suite/perfschema/t/relaylog.test
index 12fc96a8b27..16f72efae98 100644
--- a/mysql-test/suite/perfschema/t/relaylog.test
+++ b/mysql-test/suite/perfschema/t/relaylog.test
@@ -43,7 +43,7 @@ select
if (sum_number_of_bytes_read > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_READ,
if (sum_number_of_bytes_write > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_WRITE
from performance_schema.file_summary_by_instance
- where file_name like "%master-%" order by file_name;
+ where file_name like "%master-%" and file_name not like "%sql/share%" order by file_name;
select * from performance_schema.file_summary_by_instance
where file_name like "%slave-%" order by file_name;
@@ -96,7 +96,7 @@ sync_slave_with_master;
-- echo "============ Performance schema on slave ============"
select * from performance_schema.file_summary_by_instance
- where file_name like "%master-%" order by file_name;
+ where file_name like "%master-%" and file_name not like "%sql/share%" order by file_name;
select
substring(file_name, locate("slave-", file_name)) as FILE_NAME,
diff --git a/mysql-test/suite/rpl/r/master_last_event_time_row.result b/mysql-test/suite/rpl/r/master_last_event_time_row.result
new file mode 100644
index 00000000000..2dd332007e8
--- /dev/null
+++ b/mysql-test/suite/rpl/r/master_last_event_time_row.result
@@ -0,0 +1,203 @@
+include/rpl_init.inc [topology=1->2->3]
+#
+# Initialize test data
+# Ensure that all slaves has master_last_event_time == NULL
+#
+connection server_1;
+SET STATEMENT sql_log_bin=0 FOR create table t1 (a int) engine=innodb;
+include/save_master_pos.inc
+connection server_2;
+SET STATEMENT sql_log_bin=0 FOR create table t1 (a int) engine=innodb;
+connection server_3;
+SET STATEMENT sql_log_bin=0 FOR create table t1 (a int) engine=innodb;
+#
+# Test *_last_event_time is updated at proper place.
+# Master_last_event_time should be updated by the IO thread when reading
+# in a new transaction from the primary.
+# Slave_last_event_time should be updated by the SQL thread
+# 1) immediately upon seeing the first transaction if the replica is
+# starting fresh, or
+# 2) after committing a transaction.
+#
+connection server_2;
+start slave io_thread;
+include/sync_io_with_master.inc
+master_time: (should be empty)
+slave_time: (should be empty)
+# Sleep 2s to create a time gap between the header events (i.e.
+# Format_description and Gtid_list) and the transaction event to allow
+# proving that header events should not update
+# (Master|Slave)_last_event_time
+connect server_1_1,127.0.0.1,root,,test,$SERVER_MYPORT_1,;
+set @@timestamp= TIMESTAMP;
+insert into t1 values (0);
+include/save_master_pos.inc
+connection server_2;
+include/sync_io_with_master.inc
+# For the first event, at execution start, Slave_last_event_time should
+# be updated to be 1 second prior to the time that the first transaction
+# was binlogged on the primary. This is to represent that the slave is
+# otherwise up-to-date. Note the table is locked to prevent the
+# transaction from committing (and thereby progressing
+# Slave_last_event_time to represent commit-time).
+connect server_2_2,127.0.0.1,root,,test,$SERVER_MYPORT_2,;
+lock tables t1 write;
+connection server_2;
+start slave sql_thread;
+# Waiting for replica to start executing the transaction (yet get stuck on the table lock)
+connection server_2_2;
+unlock tables;
+connection server_2;
+include/wait_for_slave_param.inc [Relay_Master_Log_File]
+include/wait_for_slave_param.inc [Exec_Master_Log_Pos]
+#
+# Test that changes are properly applied by server_2 and server_3
+#
+connection server_1;
+include/save_master_gtid.inc
+connection server_2;
+include/sync_with_master_gtid.inc
+# Show that the server_2 received the insert from master
+select * from t1;
+a
+0
+master <> NULL; Should be 1
+1
+master_time == slave_time ; Should be 1
+1
+connection server_3;
+include/start_slave.inc
+include/sync_with_master_gtid.inc
+# Show that the server_3 received the insert from master
+select * from t1;
+a
+0
+master <> NULL; Should be 1
+1
+master_time == slave_time ; Should be 1
+1
+include/stop_slave.inc
+connection server_1;
+#
+# Test simple insert
+#
+connection server_1;
+insert into t1 values (1+sleep(3));
+#
+# Test that changes are properly applied by server_2 and server_3
+#
+connection server_1;
+include/save_master_gtid.inc
+connection server_2;
+include/sync_with_master_gtid.inc
+# Show that the server_2 received the insert from master
+select * from t1;
+a
+0
+1
+master <> NULL; Should be 1
+1
+master_time == slave_time ; Should be 1
+1
+connection server_3;
+include/start_slave.inc
+include/sync_with_master_gtid.inc
+# Show that the server_3 received the insert from master
+select * from t1;
+a
+0
+1
+master <> NULL; Should be 1
+1
+master_time == slave_time ; Should be 1
+1
+include/stop_slave.inc
+connection server_1;
+#
+# Test insert with forced time
+#
+SET TIMESTAMP=unix_timestamp("2000-01-01");
+insert into t1 values (2+sleep(3));
+SET TIMESTAMP=DEFAULT;
+#
+# Test that changes are properly applied by server_2 and server_3
+#
+connection server_1;
+include/save_master_gtid.inc
+connection server_2;
+include/sync_with_master_gtid.inc
+# Show that the server_2 received the insert from master
+select * from t1;
+a
+0
+1
+2
+master <> NULL; Should be 1
+1
+master_time == slave_time ; Should be 1
+1
+connection server_3;
+include/start_slave.inc
+include/sync_with_master_gtid.inc
+# Show that the server_3 received the insert from master
+select * from t1;
+a
+0
+1
+2
+master <> NULL; Should be 1
+1
+master_time == slave_time ; Should be 1
+1
+include/stop_slave.inc
+connection server_1;
+#
+# Test multi-transaction
+#
+begin;
+insert into t1 values (3+sleep(3));
+insert into t1 values (4+sleep(3));
+commit;
+#
+# Test that changes are properly applied by server_2 and server_3
+#
+connection server_1;
+include/save_master_gtid.inc
+connection server_2;
+include/sync_with_master_gtid.inc
+# Show that the server_2 received the insert from master
+select * from t1;
+a
+0
+1
+2
+3
+4
+master <> NULL; Should be 1
+1
+master_time == slave_time ; Should be 1
+1
+connection server_3;
+include/start_slave.inc
+include/sync_with_master_gtid.inc
+# Show that the server_3 received the insert from master
+select * from t1;
+a
+0
+1
+2
+3
+4
+master <> NULL; Should be 1
+1
+master_time == slave_time ; Should be 1
+1
+include/stop_slave.inc
+connection server_1;
+# cleanup
+connection server_3;
+include/start_slave.inc
+connection server_1;
+drop table t1;
+include/rpl_end.inc
+# End of master_last_event_time_row
diff --git a/mysql-test/suite/rpl/r/master_last_event_time_stmt.result b/mysql-test/suite/rpl/r/master_last_event_time_stmt.result
new file mode 100644
index 00000000000..4b1e41a7704
--- /dev/null
+++ b/mysql-test/suite/rpl/r/master_last_event_time_stmt.result
@@ -0,0 +1,71 @@
+include/rpl_init.inc [topology=1->2->3]
+connection server_3;
+include/stop_slave.inc
+connection server_1;
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+alter table mysql.gtid_slave_pos engine=innodb;
+create table t1 (a int) engine=aria;
+create table t2 (a int) engine=innodb;
+include/save_master_gtid.inc
+#
+# Ensure that the slave doesn't overwrite exec_time when binlogging
+#
+connection server_2;
+include/sync_with_master_gtid.inc
+include/stop_slave.inc
+change master to master_delay=SLAVE_DELAY;
+include/start_slave.inc
+connection server_1;
+# Sleep 2 to ensure DDL and DML have different binlog timestamps
+connection server_2;
+flush logs;
+connection server_1;
+set @@timestamp= TIMESTAMP;
+insert into t1 values (sleep(2));
+include/save_master_gtid.inc
+# Waiting for slave to delay and commit transaction..
+connection server_2;
+include/sync_with_master_gtid.inc
+# MYSQL_BINLOG slave_local_binlog > slave_outfile
+include/assert_grep.inc [Ensure slave doesn't overwrite exec_time in the binlog event]
+#
+# Test that changes are properly applied by server_2 and server_3
+#
+connection server_1;
+include/save_master_gtid.inc
+connection server_2;
+include/sync_with_master_gtid.inc
+# Show that the server_2 received the insert from master
+select * from t1;
+a
+0
+master <> NULL; Should be 1
+1
+master_time == slave_time ; Should be 1
+1
+connection server_3;
+include/start_slave.inc
+include/sync_with_master_gtid.inc
+# Show that the server_3 received the insert from master
+select * from t1;
+a
+0
+master <> NULL; Should be 1
+1
+master_time == slave_time ; Should be 1
+1
+include/stop_slave.inc
+connection server_1;
+connection server_2;
+include/stop_slave.inc
+change master to master_delay=0;
+include/start_slave.inc
+connection server_3;
+include/start_slave.inc
+#
+# Cleanup
+connection server_1;
+drop table t1;
+drop table t2;
+include/rpl_end.inc
+# End of master_last_event_time_stmt
diff --git a/mysql-test/suite/rpl/r/rpl_parallel_sbm.result b/mysql-test/suite/rpl/r/rpl_parallel_sbm.result
index 75012c93f3b..c41de974588 100644
--- a/mysql-test/suite/rpl/r/rpl_parallel_sbm.result
+++ b/mysql-test/suite/rpl/r/rpl_parallel_sbm.result
@@ -23,6 +23,11 @@ connection slave;
# Waiting for transaction to arrive on slave and begin SQL Delay..
# Validating SBM is updated on event arrival..
# ..done
+# MDEV-33856: New definition for Seconds_Behind_Master
+# Validating Master_last_event_time is updated on event arrival..
+# ..done
+# Validating Slave_last_event_time is still from the last transaction..
+# ..done
# MDEV-32265. At time of STOP SLAVE, if the SQL Thread is currently
# delaying a transaction; then when the reciprocal START SLAVE occurs,
# if the event is still to be delayed, SBM should resume accordingly
@@ -41,6 +46,9 @@ connection slave;
connection server_2;
UNLOCK TABLES;
include/sync_with_master_gtid.inc
+# MDEV-33856: New definition for Seconds_Behind_Master
+# Ensuring Slave_last_event_time is now up-to-date once event is executed
+# ..done
#
# Pt 2) If the worker threads have not entered an idle state, ensure
# following events do not update SBM
diff --git a/mysql-test/suite/rpl/t/master_last_event_time.inc b/mysql-test/suite/rpl/t/master_last_event_time.inc
new file mode 100644
index 00000000000..0790d557a7b
--- /dev/null
+++ b/mysql-test/suite/rpl/t/master_last_event_time.inc
@@ -0,0 +1,58 @@
+--echo #
+--echo # Test that changes are properly applied by server_2 and server_3
+--echo #
+
+--connection server_1
+--source include/save_master_gtid.inc
+
+--connection server_2
+--source include/sync_with_master_gtid.inc
+
+--echo # Show that the server_2 received the insert from master
+select * from t1;
+
+--let $master_time= query_get_value(SHOW ALL SLAVES STATUS, Master_last_event_time, 1)
+--let $slave_time= query_get_value(SHOW ALL SLAVES STATUS, Slave_last_event_time, 1)
+--disable_query_log
+--eval select "$master_time" <> "NULL" as "master <> NULL; Should be 1"
+
+if (`SELECT NOT "$master_time" <> "NULL"`)
+{
+ --echo MASTER: $master_time
+}
+
+--eval select "$master_time" = "$slave_time" as "master_time == slave_time ; Should be 1"
+if (`SELECT NOT "$master_time" = "$slave_time"`)
+{
+ --echo MASTER: $master_time SLAVE: $slave_time
+}
+--enable_query_log
+
+--connection server_3
+--sleep 1
+--source include/start_slave.inc
+--source include/sync_with_master_gtid.inc
+
+--echo # Show that the server_3 received the insert from master
+select * from t1;
+
+--let $master_time= query_get_value(SHOW ALL SLAVES STATUS, Master_last_event_time, 1)
+--let $slave_time= query_get_value(SHOW ALL SLAVES STATUS, Slave_last_event_time, 1)
+--disable_query_log
+
+--eval select "$master_time" <> "NULL" as "master <> NULL; Should be 1"
+if (`SELECT NOT "$master_time" <> "NULL"`)
+{
+ --echo MASTER: $master_time
+}
+
+--eval select "$master_time" = "$slave_time" as "master_time == slave_time ; Should be 1"
+if (`SELECT NOT "$master_time" = "$slave_time"`)
+{
+ --echo MASTER: $master_time SLAVE: $slave_time
+}
+--enable_query_log
+
+# Reset things for next test
+--source include/stop_slave.inc
+--connection server_1
diff --git a/mysql-test/suite/rpl/t/master_last_event_time_row.cnf b/mysql-test/suite/rpl/t/master_last_event_time_row.cnf
new file mode 100644
index 00000000000..65a4396edf3
--- /dev/null
+++ b/mysql-test/suite/rpl/t/master_last_event_time_row.cnf
@@ -0,0 +1,16 @@
+!include suite/rpl/my.cnf
+
+[mysqld.1]
+
+[mysqld.2]
+log-slave-updates
+binlog-checksum=CRC32
+
+[mysqld.3]
+log-slave-updates
+binlog-checksum=CRC32
+
+[ENV]
+SERVER_MYPORT_3= @mysqld.3.port
+SERVER_MYSOCK_3= @mysqld.3.socket
+
diff --git a/mysql-test/suite/rpl/t/master_last_event_time_row.test b/mysql-test/suite/rpl/t/master_last_event_time_row.test
new file mode 100644
index 00000000000..92abe00d407
--- /dev/null
+++ b/mysql-test/suite/rpl/t/master_last_event_time_row.test
@@ -0,0 +1,168 @@
+#
+# Row specific tests for master_last_event_time
+#
+--source include/have_binlog_format_row.inc
+--source include/have_innodb.inc
+--let $rpl_skip_start_slave=1
+--let $rpl_topology=1->2->3
+--source include/rpl_init.inc
+
+--echo #
+--echo # Initialize test data
+--echo # Ensure that all slaves has master_last_event_time == NULL
+--echo #
+
+--connection server_1
+SET STATEMENT sql_log_bin=0 FOR create table t1 (a int) engine=innodb;
+--source include/save_master_pos.inc
+--connection server_2
+SET STATEMENT sql_log_bin=0 FOR create table t1 (a int) engine=innodb;
+--connection server_3
+SET STATEMENT sql_log_bin=0 FOR create table t1 (a int) engine=innodb;
+
+--echo #
+--echo # Test *_last_event_time is updated at proper place.
+--echo # Master_last_event_time should be updated by the IO thread when reading
+--echo # in a new transaction from the primary.
+--echo # Slave_last_event_time should be updated by the SQL thread
+--echo # 1) immediately upon seeing the first transaction if the replica is
+--echo # starting fresh, or
+--echo # 2) after committing a transaction.
+--echo #
+
+--connection server_2
+start slave io_thread;
+--source include/sync_io_with_master.inc
+
+# Ensure Master_last_event_time and Slave_last_event_time are not yet set
+--let $master_time= `select Master_last_event_time from information_schema.slave_status`
+--echo master_time: $master_time (should be empty)
+--let $slave_time=`select Slave_last_event_time from information_schema.slave_status`
+--echo slave_time: $slave_time (should be empty)
+
+--echo # Sleep 2s to create a time gap between the header events (i.e.
+--echo # Format_description and Gtid_list) and the transaction event to allow
+--echo # proving that header events should not update
+--echo # (Master|Slave)_last_event_time
+--sleep 2
+
+--connect (server_1_1,127.0.0.1,root,,test,$SERVER_MYPORT_1,)
+--let $t1_time_begin= `select truncate(@@timestamp,0)`
+--replace_result $t1_time_begin TIMESTAMP
+--eval set @@timestamp= $t1_time_begin
+insert into t1 values (0);
+
+--source include/save_master_pos.inc
+
+--connection server_2
+--source include/sync_io_with_master.inc
+
+--let $mle_time= `select Master_last_event_time from information_schema.slave_status`
+--let $mle_time_unix= `select truncate(unix_timestamp("$mle_time"),0)`
+if (`SELECT ($mle_time_unix < $t1_time_begin)`)
+{
+ --echo # Expected timestamp (master binlog time): $t1_time_begin
+ --echo # Reported Master_last_event_time: $mle_time_unix ($mle_time)
+ --die Master_last_event_time did not correspond to time that the transaction was binlogged on primary
+}
+
+--let $slave_time= `select Slave_last_event_time from information_schema.slave_status`
+if (`select strcmp("$slave_time", "") != 0`)
+{
+ --echo # Slave_last_event_time: $slave_time
+ --die SQL thread was never started, Slave_last_event_time should be NULL
+}
+
+# Check that we also get the values from show all slaves status
+--let $time_diff= query_get_value(SHOW ALL SLAVES STATUS, Master_Slave_time_diff, 1)
+if (`select strcmp("$time_diff", "NULL") != 0`)
+{
+ --echo # Master_Slave_time_diff: $time_diff
+ --die SQL thread was never started, Master_Slave_time_diff should be NULL
+}
+
+--echo # For the first event, at execution start, Slave_last_event_time should
+--echo # be updated to be 1 second prior to the time that the first transaction
+--echo # was binlogged on the primary. This is to represent that the slave is
+--echo # otherwise up-to-date. Note the table is locked to prevent the
+--echo # transaction from committing (and thereby progressing
+--echo # Slave_last_event_time to represent commit-time).
+
+--connect (server_2_2,127.0.0.1,root,,test,$SERVER_MYPORT_2,)
+lock tables t1 write;
+
+--connection server_2
+start slave sql_thread;
+
+--echo # Waiting for replica to start executing the transaction (yet get stuck on the table lock)
+--let $wait_condition= SELECT count(*) FROM information_schema.processlist WHERE state LIKE 'Waiting for table metadata lock';
+--source include/wait_condition.inc
+
+--let $slave_time= query_get_value(SHOW ALL SLAVES STATUS, Slave_last_event_time, 1)
+--let $slave_time_unix= `select truncate(unix_timestamp("$slave_time"),0)`
+--let $expected_slave_time= `select ($t1_time_begin - 1)`
+if ($slave_time_unix != $expected_slave_time)
+{
+ --echo # Master_last_event_time: $mle_time_unix ($mle_time)
+ --echo # Slave_last_event_time: $slave_time_unix ($slave_time)
+ --echo # Expected value: $expected_slave_time
+ --die SQL thread has not yet committed its first transaction, Slave_last_event_time should be 1s before that transaction
+}
+
+# Master_Slave_time_diff isn't guaranteed to be 1 second, despite the
+# hard-coded logic to subtract 1s from the first non-group event that comes in.
+# This is because the Gtid and Xid events can be logged with different
+# timestamps, and Slave_last_event_time is updated using the Gtid log event,
+# and Master_last_event_time is updated using the Xid log event. So to ensure
+# that Master_Slave_time_diff is updated correctly for the first transaction,
+# it must also take into account the difference in timestamps of these events
+--let $xid_gtid_time_diff=`SELECT $mle_time_unix - $t1_time_begin`
+--let $time_diff= query_get_value(SHOW ALL SLAVES STATUS, Master_Slave_time_diff, 1)
+if (`SELECT $time_diff != 1 + $xid_gtid_time_diff`)
+{
+ --echo # Master_Slave_time_diff: $time_diff
+ --echo # Xid Gtid Timestamp Difference: $xid_gtid_time_diff
+ --die SQL thread has not yet committed its first transaction, Master_Slave_time_diff should be updated to look up-to-date prior to this trx
+}
+
+--connection server_2_2
+unlock tables;
+
+--connection server_2
+--source include/sync_with_master.inc
+--source master_last_event_time.inc
+
+--echo #
+--echo # Test simple insert
+--echo #
+
+--connection server_1
+insert into t1 values (1+sleep(3));
+--source master_last_event_time.inc
+
+--echo #
+--echo # Test insert with forced time
+--echo #
+
+SET TIMESTAMP=unix_timestamp("2000-01-01");
+insert into t1 values (2+sleep(3));
+SET TIMESTAMP=DEFAULT;
+--source master_last_event_time.inc
+
+--echo #
+--echo # Test multi-transaction
+--echo #
+
+begin;
+insert into t1 values (3+sleep(3));
+insert into t1 values (4+sleep(3));
+commit;
+--source master_last_event_time.inc
+
+--echo # cleanup
+--connection server_3
+--source include/start_slave.inc
+--connection server_1
+drop table t1;
+--source include/rpl_end.inc
+--echo # End of master_last_event_time_row
diff --git a/mysql-test/suite/rpl/t/master_last_event_time_stmt.cnf b/mysql-test/suite/rpl/t/master_last_event_time_stmt.cnf
new file mode 100644
index 00000000000..35b68f7906f
--- /dev/null
+++ b/mysql-test/suite/rpl/t/master_last_event_time_stmt.cnf
@@ -0,0 +1,15 @@
+!include suite/rpl/my.cnf
+
+[mysqld.1]
+
+[mysqld.2]
+log-slave-updates
+binlog-checksum=CRC32
+
+[mysqld.3]
+log-slave-updates
+binlog-checksum=CRC32
+
+[ENV]
+SERVER_MYPORT_3= @mysqld.3.port
+SERVER_MYSOCK_3= @mysqld.3.socket
diff --git a/mysql-test/suite/rpl/t/master_last_event_time_stmt.test b/mysql-test/suite/rpl/t/master_last_event_time_stmt.test
new file mode 100644
index 00000000000..fe0f16a3db3
--- /dev/null
+++ b/mysql-test/suite/rpl/t/master_last_event_time_stmt.test
@@ -0,0 +1,84 @@
+#
+# Statement specific tests for master_last_event_time
+#
+--source include/have_binlog_format_statement.inc
+--source include/have_innodb.inc
+--let $rpl_topology=1->2->3
+--source include/rpl_init.inc
+
+# Server_3 state is maintained by master_last_event_time.inc
+--connection server_3
+--source include/stop_slave.inc
+
+--connection server_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+alter table mysql.gtid_slave_pos engine=innodb;
+create table t1 (a int) engine=aria;
+create table t2 (a int) engine=innodb;
+--source include/save_master_gtid.inc
+
+--echo #
+--echo # Ensure that the slave doesn't overwrite exec_time when binlogging
+--echo #
+
+--let $slave_delay= 3
+
+--connection server_2
+--source include/sync_with_master_gtid.inc
+--source include/stop_slave.inc
+--replace_result $slave_delay SLAVE_DELAY
+--eval change master to master_delay=$slave_delay
+--source include/start_slave.inc
+
+--connection server_1
+--echo # Sleep 2 to ensure DDL and DML have different binlog timestamps
+--sleep 2
+--let $t1_time_begin= `select truncate(@@timestamp,0)`
+--connection server_2
+flush logs;
+--connection server_1
+--replace_result $t1_time_begin TIMESTAMP
+--eval set @@timestamp= $t1_time_begin
+--disable_warnings
+insert into t1 values (sleep(2));
+--source include/save_master_gtid.inc
+--enable_warnings
+
+--echo # Waiting for slave to delay and commit transaction..
+--connection server_2
+--source include/sync_with_master_gtid.inc
+
+# Slave will replicate the above with a row event which will be very fast
+# compared to the master event.
+# Check the exec time is not 0 (which is typical for very fast row events)
+
+--let $datadir= `select @@datadir`
+--let $filename= query_get_value(SHOW MASTER STATUS, File, 1)
+--let $slave_local_binlog=$datadir/$filename
+--let $slave_outfile=$MYSQLTEST_VARDIR/tmp/slave_binlog.sql
+--echo # MYSQL_BINLOG slave_local_binlog > slave_outfile
+--exec $MYSQL_BINLOG $slave_local_binlog > $slave_outfile
+--let $assert_count=0
+--let $assert_text= Ensure slave doesn't overwrite exec_time in the binlog event
+--let $assert_select=exec_time=0
+--let $assert_file= $slave_outfile
+--source include/assert_grep.inc
+
+--source master_last_event_time.inc
+
+--connection server_2
+--source include/stop_slave.inc
+change master to master_delay=0;
+--source include/start_slave.inc
+--connection server_3
+--source include/start_slave.inc
+
+--echo #
+--echo # Cleanup
+--connection server_1
+drop table t1;
+drop table t2;
+
+--source include/rpl_end.inc
+--remove_file $slave_outfile
+--echo # End of master_last_event_time_stmt
diff --git a/mysql-test/suite/rpl/t/rpl_parallel_sbm.test b/mysql-test/suite/rpl/t/rpl_parallel_sbm.test
index 90753caf143..2c9b4882c16 100644
--- a/mysql-test/suite/rpl/t/rpl_parallel_sbm.test
+++ b/mysql-test/suite/rpl/t/rpl_parallel_sbm.test
@@ -61,6 +61,30 @@ if (`SELECT $sbm_trx1_arrive > ($seconds_since_idling + 1)`)
}
--echo # ..done
+--echo # MDEV-33856: New definition for Seconds_Behind_Master
+--echo # Validating Master_last_event_time is updated on event arrival..
+--let $mle_time_trx1_arrive= query_get_value(SHOW ALL SLAVES STATUS, Master_last_event_time, 1)
+--let $mle_time_trx1_arrive_unix= `SELECT truncate(unix_timestamp("$mle_time_trx1_arrive"), 0)`
+if (`SELECT $mle_time_trx1_arrive_unix < ($ts_trx_before_ins - 1)`)
+{
+ --echo # Master_last_event_time: $mle_time_trx1_arrive_unix ($mle_time_trx1_arrive)
+ --die Master_last_event_time was not updated for delayed replica at event arrival time
+}
+--echo # ..done
+
+--echo # Validating Slave_last_event_time is still from the last transaction..
+# Note we infer Slave_last_event_time via Master_Slave_time_diff
+--let $time_diff_trx1_arrive= query_get_value(SHOW ALL SLAVES STATUS, Master_Slave_time_diff, 1)
+if ($time_diff_trx1_arrive < 5)
+{
+ --let $slave_time_trx1_arrive= query_get_value(SHOW ALL SLAVES STATUS, Slave_last_event_time, 1)
+ --let $slave_time_trx1_arrive_unix= `SELECT truncate(unix_timestamp("$slave_time_trx1_arrive"), 0)`
+ --echo # Slave_last_event_time: $slave_time_trx1_arrive_unix ($slave_time_trx1_arrive)
+ --echo # Master_Slave_time_diff: $time_diff_trx1_arrive
+ --die Slave_last_event_time is too recent, should not be less than 5 seconds, ie. 3 from delay + 2 from sleep
+}
+--echo # ..done
+
--echo # MDEV-32265. At time of STOP SLAVE, if the SQL Thread is currently
--echo # delaying a transaction; then when the reciprocal START SLAVE occurs,
@@ -98,6 +122,24 @@ UNLOCK TABLES;
--source include/sync_with_master_gtid.inc
+--echo # MDEV-33856: New definition for Seconds_Behind_Master
+--echo # Ensuring Slave_last_event_time is now up-to-date once event is executed
+--let $slave_time_trx1_commit= query_get_value(SHOW ALL SLAVES STATUS, Slave_last_event_time, 1)
+--let $slave_time_trx1_commit_unix= `SELECT truncate(unix_timestamp("$slave_time_trx1_commit"),0)`
+if ($slave_time_trx1_commit_unix != $mle_time_trx1_arrive_unix)
+{
+ --echo # Slave_last_event_time: $slave_time_trx1_commit_unix ($slave_time_trx1_commit)
+ --echo # Master_last_event_time: $mle_time_trx1_arrive_unix ($mle_time_trx1_arrive)
+ --die Slave_last_event_time is not equal to Master_last_event_time despite being up-to-date
+}
+--let $time_diff_trx1_commit= query_get_value(SHOW ALL SLAVES STATUS, Master_Slave_time_diff, 1)
+if ($time_diff_trx1_commit != 0)
+{
+ --echo # Master_Slave_time_diff: $time_diff_trx1_commit
+ --die Master_Slave_time_diff should be 0, as slave is up-to-date
+}
+--echo # ..done
+
--echo #
--echo # Pt 2) If the worker threads have not entered an idle state, ensure
--echo # following events do not update SBM
diff --git a/sql/handler.h b/sql/handler.h
index 37b403c942c..86862210fab 100644
--- a/sql/handler.h
+++ b/sql/handler.h
@@ -1113,6 +1113,9 @@ enum enum_schema_tables
SCH_USERS,
SCH_USER_PRIVILEGES,
SCH_VIEWS,
+#ifdef HAVE_REPLICATION
+ SCH_SLAVE_STATUS,
+#endif
SCH_ENUM_SIZE
};
diff --git a/sql/item.h b/sql/item.h
index 6c69f33aecb..28014a1e135 100644
--- a/sql/item.h
+++ b/sql/item.h
@@ -4902,8 +4902,8 @@ class Item_partition_func_safe_string: public Item_string
/**
Item_empty_string -- is a utility class to put an item into List<Item>
- which is then used in protocol.send_result_set_metadata() when sending SHOW output to
- the client.
+ which is then used in protocol.send_result_set_metadata() when sending SHOW
+ output to the client.
*/
class Item_empty_string :public Item_partition_func_safe_string
@@ -5284,6 +5284,17 @@ class Item_datetime_literal: public Item_temporal_literal
set_maybe_null(cached_time.check_date(TIME_NO_ZERO_DATE |
TIME_NO_ZERO_IN_DATE));
}
+ Item_datetime_literal(THD *thd, const char *name_arg,
+ decimal_digits_t dec_arg):
+ Item_temporal_literal(thd, dec_arg),
+ cached_time(Datetime::zero())
+ {
+ max_length= MAX_DATETIME_WIDTH + (decimals ? decimals + 1 : 0);
+ set_maybe_null(true);
+ // Set the name (see also a similar code in Item_int):
+ name.str= name_arg;
+ name.length= strlen(name.str);
+ }
const Type_handler *type_handler() const override
{ return &type_handler_datetime2; }
void print(String *str, enum_query_type query_type) override;
diff --git a/sql/log.cc b/sql/log.cc
index 1cc0fa77f08..63d9c756911 100644
--- a/sql/log.cc
+++ b/sql/log.cc
@@ -1898,10 +1898,20 @@ static inline int
binlog_commit_flush_xid_caches(THD *thd, binlog_cache_mngr *cache_mngr,
bool all, my_xid xid)
{
+ DBUG_ENTER("binlog_commit_flush_xid_caches");
DBUG_ASSERT(xid); // replaced former treatment of ONE-PHASE XA
Xid_log_event end_evt(thd, xid, TRUE);
- return (binlog_flush_cache(thd, cache_mngr, &end_evt, all, TRUE, TRUE));
+ if (!thd->slave_thread && ! thd->user_time.val)
+ {
+ /*
+ Ensure that on the master the event time is the time of commit,
+ not the start of statement time.
+ */
+ my_hrtime_t hrtime= my_hrtime();
+ end_evt.when= hrtime_to_my_time(hrtime);
+ }
+ DBUG_RETURN(binlog_flush_cache(thd, cache_mngr, &end_evt, all, TRUE, TRUE));
}
/**
@@ -8224,6 +8234,7 @@ MYSQL_BIN_LOG::write_transaction_to_binlog(THD *thd,
{
group_commit_entry entry;
Ha_trx_info *ha_info;
+ bool has_xid;
DBUG_ENTER("MYSQL_BIN_LOG::write_transaction_to_binlog");
/*
@@ -8251,13 +8262,16 @@ MYSQL_BIN_LOG::write_transaction_to_binlog(THD *thd,
ha_info= all ? thd->transaction->all.ha_list : thd->transaction->stmt.ha_list;
entry.ro_1pc= is_ro_1pc;
entry.end_event= end_ev;
- auto has_xid= entry.end_event->get_type_code() == XID_EVENT;
+ has_xid= entry.end_event->get_type_code() == XID_EVENT;
for (; has_xid && !entry.need_unlog && ha_info; ha_info= ha_info->next())
{
if (ha_info->is_started() && ha_info->ht() != binlog_hton &&
!ha_info->ht()->commit_checkpoint_request)
+ {
entry.need_unlog= true;
+ break;
+ }
}
if (cache_mngr->stmt_cache.has_incident() ||
diff --git a/sql/log_event.cc b/sql/log_event.cc
index 3802f76efe0..706a4903eb0 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -964,6 +964,18 @@ Log_event* Log_event::read_log_event(IO_CACHE* file,
DBUG_RETURN(res);
}
+/*
+ Update thd->orig_exec_time
+*/
+
+inline void set_orig_exec_time_in_thd(my_time_t exec_time)
+{
+#if !defined(MYSQL_CLIENT) && defined(HAVE_REPLICATION)
+ THD *thd= current_thd;
+ if (likely(thd))
+ thd->orig_exec_time= exec_time;
+#endif
+}
/**
Binlog format tolerance is in (buf, event_len, fdle)
@@ -1104,10 +1116,12 @@ Log_event* Log_event::read_log_event(const uchar *buf, uint event_len,
switch(event_type) {
case QUERY_EVENT:
ev= new Query_log_event(buf, event_len, fdle, QUERY_EVENT);
+ set_orig_exec_time_in_thd(((Query_log_event*) ev)->exec_time);
break;
case QUERY_COMPRESSED_EVENT:
ev= new Query_compressed_log_event(buf, event_len, fdle,
- QUERY_COMPRESSED_EVENT);
+ QUERY_COMPRESSED_EVENT);
+ set_orig_exec_time_in_thd(((Query_compressed_log_event*) ev)->exec_time);
break;
case ROTATE_EVENT:
ev= new Rotate_log_event(buf, event_len, fdle);
@@ -1194,6 +1208,7 @@ Log_event* Log_event::read_log_event(const uchar *buf, uint event_len,
break;
case EXECUTE_LOAD_QUERY_EVENT:
ev= new Execute_load_query_log_event(buf, event_len, fdle);
+ set_orig_exec_time_in_thd(((Query_log_event*) ev)->exec_time);
break;
case INCIDENT_EVENT:
ev= new Incident_log_event(buf, event_len, fdle);
@@ -1747,6 +1762,26 @@ Query_log_event::Query_log_event(const uchar *buf, uint event_len,
DBUG_VOID_RETURN;
}
+
+/*
+ Get the time when the event had been executed on the master.
+ This works for both query events and load data events.
+*/
+
+#if Q_EXEC_TIME_OFFSET != L_EXEC_TIME_OFFSET
+#error "Q_EXEC_TIME_OFFSET is not same as L_EXEC_TIME_OFFSET"
+#endif
+
+time_t query_event_get_time(const uchar *buf,
+ const Format_description_log_event
+ *description_event)
+{
+ time_t when= uint4korr(buf);
+ buf+= description_event->common_header_len;
+ return when + uint4korr(buf + Q_EXEC_TIME_OFFSET);
+}
+
+
Query_compressed_log_event::Query_compressed_log_event(const uchar *buf,
uint event_len,
const Format_description_log_event
diff --git a/sql/log_event.h b/sql/log_event.h
index 3f707ee25c0..69ba7cde440 100644
--- a/sql/log_event.h
+++ b/sql/log_event.h
@@ -809,6 +809,10 @@ static inline bool LOG_EVENT_IS_ROW_V2(enum Log_event_type type)
(type >= WRITE_ROWS_COMPRESSED_EVENT && type <= DELETE_ROWS_COMPRESSED_EVENT);
}
+static inline bool LOG_EVENT_IS_LOAD_DATA(enum Log_event_type type)
+{
+ return type == LOAD_EVENT || type == NEW_LOAD_EVENT;
+}
/*
The number of types we handle in Format_description_log_event (UNKNOWN_EVENT
@@ -1293,7 +1297,7 @@ class Log_event
my_time_t when;
ulong when_sec_part;
/* The number of seconds the query took to run on the master. */
- ulong exec_time;
+ my_time_t exec_time;
/* Number of bytes written by write() function */
size_t data_written;
@@ -1414,8 +1418,8 @@ class Log_event
log; used by SHOW BINLOG EVENTS, the binlog_dump thread on the
master (reads master's binlog), the slave IO thread (reads the
event sent by binlog_dump), the slave SQL thread (reads the event
- from the relay log). If mutex is 0, the read will proceed without
- mutex. We need the description_event to be able to parse the
+ from the relay log).
+ We need the description_event to be able to parse the
event (to know the post-header's size); in fact in read_log_event
we detect the event's type, then call the specific event's
constructor and pass description_event as an argument.
@@ -1438,8 +1442,6 @@ class Log_event
Reads an event from a binlog or relay log. Used by the dump thread
this method reads the event into a raw buffer without parsing it.
- @Note If mutex is 0, the read will proceed without mutex.
-
@Note If a log name is given than the method will check if the
given binlog is still active.
@@ -5504,6 +5506,9 @@ int row_log_event_uncompress(const Format_description_log_event
const uchar *src, ulong src_len,
uchar* buf, ulong buf_size, bool *is_malloc,
uchar **dst, ulong *newlen);
+time_t query_event_get_time(const uchar *buf,
+ const Format_description_log_event
+ *description_event);
bool is_parallel_retry_error(rpl_group_info *rgi, int err);
diff --git a/sql/log_event_server.cc b/sql/log_event_server.cc
index e2ab6a659cd..2699ec773f8 100644
--- a/sql/log_event_server.cc
+++ b/sql/log_event_server.cc
@@ -1328,8 +1328,6 @@ Query_log_event::Query_log_event(THD* thd_arg, const char* query_arg,
{
/* status_vars_len is set just before writing the event */
- time_t end_time;
-
#ifdef WITH_WSREP
/*
If Query_log_event will contain non trans keyword (not BEGIN, COMMIT,
@@ -1348,8 +1346,14 @@ Query_log_event::Query_log_event(THD* thd_arg, const char* query_arg,
memset(&host, 0, sizeof(host));
error_code= errcode;
- end_time= my_time(0);
- exec_time = (ulong) (end_time - thd_arg->start_time);
+ /*
+ For slave threads, remember the original master exec time.
+ This is needed to be able to calculate the master commit time.
+ */
+ exec_time= ((thd->slave_thread) ?
+ thd->orig_exec_time :
+ (my_time(0) - thd_arg->start_time));
+
/**
@todo this means that if we have no catalog, then it is replicated
as an existing catalog of length zero. is that safe? /sven
@@ -3682,6 +3686,15 @@ int Xid_apply_log_event::do_apply_event(rpl_group_info *rgi)
general_log_print(thd, COM_QUERY, get_query());
thd->variables.option_bits&= ~OPTION_GTID_BEGIN;
+ /*
+ Use the time from the current Xid_log_event for the generated
+ Xid_log_event in binlog_commit_flush_xid_caches().
+ This ensures that the time for Xid_log_events does not change
+ and allows slaves to give a consistent value for
+ Slave_last_event_time.
+ */
+ thd->start_time= when;
+
res= do_commit();
if (!res && rgi->gtid_pending)
{
diff --git a/sql/protocol.cc b/sql/protocol.cc
index 1e27c996687..ca7803248c6 100644
--- a/sql/protocol.cc
+++ b/sql/protocol.cc
@@ -1417,33 +1417,6 @@ bool Protocol::store(I_List<i_string>* str_list)
return store((char*) tmp.ptr(), tmp.length(), tmp.charset());
}
-
-/**
- Send a set of strings as a string of key-value pairs with ',' in between.
-*/
-
-bool Protocol::store(I_List<i_string_pair>* str_list)
-{
- char buf[256];
- const char *delimiter= ",";
- String tmp(buf, sizeof(buf), &my_charset_bin);
- size_t delim_len= 0;
- I_List_iterator<i_string_pair> it(*str_list);
- i_string_pair* s;
-
- tmp.length(0);
- while ((s=it++))
- {
- tmp.append(delimiter, delim_len);
- tmp.append(s->key, strlen(s->key));
- tmp.append(STRING_WITH_LEN("->"));
- tmp.append(s->val, strlen(s->val));
- delim_len= 1;
- }
- return store((char*) tmp.ptr(), tmp.length(), tmp.charset());
-}
-
-
/****************************************************************************
Functions to handle the simple (default) protocol where everything is
This protocol is the one that is used by default between the MySQL server
diff --git a/sql/protocol.h b/sql/protocol.h
index d1096b041af..0a55d1b1331 100644
--- a/sql/protocol.h
+++ b/sql/protocol.h
@@ -105,7 +105,7 @@ class Protocol
bool send_result_set_row(List<Item> *row_items);
bool store(I_List<i_string> *str_list);
- bool store(I_List<i_string_pair> *str_list);
+
bool store_string_or_null(const char *from, CHARSET_INFO *cs);
bool store_warning(const char *from, size_t length);
String *storage_packet() { return packet; }
diff --git a/sql/rpl_mi.cc b/sql/rpl_mi.cc
index 4f28f1f8edf..224f1c3ea16 100644
--- a/sql/rpl_mi.cc
+++ b/sql/rpl_mi.cc
@@ -1913,6 +1913,14 @@ void Domain_id_filter::store_ids(THD *thd)
}
}
+void Domain_id_filter::store_ids(Field ***field)
+{
+ for (int i= DO_DOMAIN_IDS; i <= IGNORE_DOMAIN_IDS; i ++)
+ {
+ field_store_ids(*((*field)++), &m_domain_ids[i]);
+ }
+}
+
/**
Initialize the given domain_id list (DYNAMIC_ARRAY) with the
space-separated list of numbers from the specified IO_CACHE where
@@ -1987,20 +1995,10 @@ void update_change_master_ids(DYNAMIC_ARRAY *new_ids, DYNAMIC_ARRAY *old_ids)
return;
}
-/**
- Serialize and store the ids from the given ids DYNAMIC_ARRAY into the thd's
- protocol buffer.
-
- @param thd [IN] thread handler
- @param ids [IN] ids list
-
- @retval void
-*/
-
-void prot_store_ids(THD *thd, DYNAMIC_ARRAY *ids)
+static size_t store_ids(DYNAMIC_ARRAY *ids, char *buff, size_t buff_len)
{
- char buff[FN_REFLEN];
- uint i, cur_len;
+ uint i;
+ size_t cur_len;
for (i= 0, buff[0]= 0, cur_len= 0; i < ids->elements; i++)
{
@@ -2008,7 +2006,7 @@ void prot_store_ids(THD *thd, DYNAMIC_ARRAY *ids)
char dbuff[FN_REFLEN];
get_dynamic(ids, (void *) &id, i);
len= sprintf(dbuff, (i == 0 ? "%lu" : ", %lu"), id);
- if (cur_len + len + 4 > FN_REFLEN)
+ if (cur_len + len + 4 > buff_len)
{
/*
break the loop whenever remained space could not fit
@@ -2019,8 +2017,33 @@ void prot_store_ids(THD *thd, DYNAMIC_ARRAY *ids)
}
cur_len+= sprintf(buff + cur_len, "%s", dbuff);
}
+ return cur_len;
+}
+
+
+/**
+ Serialize and store the ids from the given ids DYNAMIC_ARRAY into the thd's
+ protocol buffer.
+
+ @param thd [IN] thread handler
+ @param ids [IN] ids list
+
+ @retval void
+*/
+
+void prot_store_ids(THD *thd, DYNAMIC_ARRAY *ids)
+{
+ char buff[FN_REFLEN];
+ size_t cur_len= store_ids(ids, buff, sizeof(buff));
thd->protocol->store(buff, cur_len, &my_charset_bin);
- return;
+}
+
+
+void field_store_ids(Field *field, DYNAMIC_ARRAY *ids)
+{
+ char buff[FN_REFLEN];
+ size_t cur_len= store_ids(ids, buff, sizeof(buff));
+ field->store(buff, cur_len, &my_charset_bin);
}
diff --git a/sql/rpl_mi.h b/sql/rpl_mi.h
index a0f17a7dd01..37a5fc30099 100644
--- a/sql/rpl_mi.h
+++ b/sql/rpl_mi.h
@@ -105,7 +105,8 @@ class Domain_id_filter
@retval void
*/
void store_ids(THD *thd);
-
+ /* Same as above, but store the id's into a group of fields */
+ void store_ids(Field ***field);
/*
Initialize the given domain id list (DYNAMIC_ARRAY) with the
space-separated list of numbers from the specified IO_CACHE where
@@ -430,7 +431,7 @@ int flush_master_info(Master_info* mi,
void copy_filter_setting(Rpl_filter* dst_filter, Rpl_filter* src_filter);
void update_change_master_ids(DYNAMIC_ARRAY *new_ids, DYNAMIC_ARRAY *old_ids);
void prot_store_ids(THD *thd, DYNAMIC_ARRAY *ids);
-
+void field_store_ids(Field *field, DYNAMIC_ARRAY *ids);
/*
Multi master are handled trough this struct.
Changes to this needs to be protected by LOCK_active_mi;
diff --git a/sql/rpl_parallel.cc b/sql/rpl_parallel.cc
index 51ca3b183ec..d279761767a 100644
--- a/sql/rpl_parallel.cc
+++ b/sql/rpl_parallel.cc
@@ -60,7 +60,10 @@ rpt_handle_event(rpl_parallel_thread::queued_event *qev,
rgi->future_event_relay_log_pos= qev->future_event_relay_log_pos;
strcpy(rgi->future_event_master_log_name, qev->future_event_master_log_name);
if (event_can_update_last_master_timestamp(ev))
+ {
rgi->last_master_timestamp= ev->when + ev->exec_time;
+ thd->orig_exec_time= ev->exec_time;
+ }
err= apply_event_and_update_pos_for_parallel(ev, thd, rgi);
rli->executed_entries++;
diff --git a/sql/rpl_rli.cc b/sql/rpl_rli.cc
index f2247638c43..461540c0d3f 100644
--- a/sql/rpl_rli.cc
+++ b/sql/rpl_rli.cc
@@ -54,7 +54,9 @@ Relay_log_info::Relay_log_info(bool is_slave_recovery, const char* thread_name)
cur_log_old_open_count(0), error_on_rli_init_info(false),
group_relay_log_pos(0), event_relay_log_pos(0),
group_master_log_pos(0), log_space_total(0), ignore_log_space_limit(0),
- last_master_timestamp(0), sql_thread_caught_up(true), slave_skip_counter(0),
+ sql_thread_caught_up(true),
+ last_master_timestamp(0), newest_master_timestamp(0), slave_timestamp(0),
+ slave_skip_counter(0),
abort_pos_wait(0), slave_run_id(0), sql_driver_thd(),
gtid_skip_flag(GTID_SKIP_NOT), inited(0), abort_slave(0), stop_for_until(0),
slave_running(MYSQL_SLAVE_NOT_RUN), until_condition(UNTIL_NONE),
@@ -1028,9 +1030,7 @@ void Relay_log_info::inc_group_relay_log_pos(ulonglong log_pos,
potentially thousands of events are still queued up for worker threads
waiting for execution.
*/
- if (rgi->last_master_timestamp &&
- rgi->last_master_timestamp > last_master_timestamp)
- last_master_timestamp= rgi->last_master_timestamp;
+ set_if_bigger(last_master_timestamp, rgi->last_master_timestamp);
}
else
{
@@ -1041,6 +1041,7 @@ void Relay_log_info::inc_group_relay_log_pos(ulonglong log_pos,
if (log_pos) // not 3.23 binlogs (no log_pos there) and not Stop_log_event
group_master_log_pos= log_pos;
}
+ set_if_bigger(slave_timestamp, rgi->last_master_timestamp);
/*
If the slave does not support transactions and replicates a transaction,
diff --git a/sql/rpl_rli.h b/sql/rpl_rli.h
index d20b0eb2ab4..9097e032de5 100644
--- a/sql/rpl_rli.h
+++ b/sql/rpl_rli.h
@@ -251,7 +251,6 @@ class Relay_log_info : public Slave_reporting_capability
*/
bool sql_force_rotate_relay;
- my_time_t last_master_timestamp;
/*
The SQL driver thread sets this true while it is waiting at the end of the
relay log for more events to arrive. SHOW SLAVE STATUS uses this to report
@@ -259,6 +258,19 @@ class Relay_log_info : public Slave_reporting_capability
*/
bool sql_thread_caught_up;
+ /* Last executed timestamp */
+ my_time_t last_master_timestamp;
+ /*
+ Latest when + exec_time read from the master (by io_thread).
+ 0 if there has been no new update events since the slave started.
+ */
+ time_t newest_master_timestamp;
+ /*
+ When + exec_time of the last committed event on the slave.
+ In case of delayed slave and slave_timestamp is not set
+ then set to when + exec_time -1 of the first seen event.
+ */
+ time_t slave_timestamp;
void clear_until_condition();
/**
Reset the delay.
@@ -395,7 +407,7 @@ class Relay_log_info : public Slave_reporting_capability
/*
Invalidate cached until_log_name and group_relay_log_name comparison
- result. Should be called after any update of group_realy_log_name if
+ result. Should be called after any update of group_relay_log_name if
there chances that sql_thread is running.
*/
inline void notify_group_relay_log_name_update()
diff --git a/sql/slave.cc b/sql/slave.cc
index 4d8b475aca6..61e2d0d731b 100644
--- a/sql/slave.cc
+++ b/sql/slave.cc
@@ -172,7 +172,7 @@ static int queue_event(Master_info *mi,const uchar *buf, ulong event_len);
static int terminate_slave_thread(THD *, mysql_mutex_t *, mysql_cond_t *,
volatile uint *, bool);
static bool check_io_slave_killed(Master_info *mi, const char *info);
-static bool send_show_master_info_data(THD *, Master_info *, bool, String *);
+
/*
Function to set the slave's max_allowed_packet based on the value
of slave_max_allowed_packet.
@@ -1477,40 +1477,6 @@ bool net_request_file(NET* net, const char* fname)
#endif /* HAVE_REPLICATION */
-bool Sql_cmd_show_slave_status::execute(THD *thd)
-{
-#ifndef HAVE_REPLICATION
- my_ok(thd);
- return false;
-#else
- DBUG_ENTER("Sql_cmd_show_slave_status::execute");
- bool res= true;
-
- /* Accept one of two privileges */
- if (check_global_access(thd, PRIV_STMT_SHOW_SLAVE_STATUS))
- goto error;
- if (is_show_all_slaves_stat())
- {
- mysql_mutex_lock(&LOCK_active_mi);
- res= show_all_master_info(thd);
- mysql_mutex_unlock(&LOCK_active_mi);
- }
- else
- {
- LEX_MASTER_INFO *lex_mi= &thd->lex->mi;
- Master_info *mi;
- if ((mi= get_master_info(&lex_mi->connection_name,
- Sql_condition::WARN_LEVEL_ERROR)))
- {
- res= show_master_info(thd, mi, 0);
- mi->release();
- }
- }
-error:
- DBUG_RETURN(res);
-#endif
-}
-
int init_strvar_from_file(char *var, int max_size, IO_CACHE *f,
const char *default_val)
{
@@ -2874,287 +2840,6 @@ int register_slave_on_master(MYSQL* mysql, Master_info *mi,
}
-/**
- Execute a SHOW SLAVE STATUS statement.
-
- @param thd Pointer to THD object for the client thread executing the
- statement.
-
- @param mi Pointer to Master_info object for the IO thread.
-
- @retval FALSE success
- @retval TRUE failure
-*/
-
-bool show_master_info(THD *thd, Master_info *mi, bool full)
-{
- DBUG_ENTER("show_master_info");
- String gtid_pos;
- List<Item> field_list;
-
- if (full && rpl_global_gtid_slave_state->tostring(>id_pos, NULL, 0))
- DBUG_RETURN(TRUE);
- show_master_info_get_fields(thd, &field_list, full, gtid_pos.length());
- if (thd->protocol->send_result_set_metadata(&field_list,
- Protocol::SEND_NUM_ROWS | Protocol::SEND_EOF))
- DBUG_RETURN(TRUE);
- if (send_show_master_info_data(thd, mi, full, >id_pos))
- DBUG_RETURN(TRUE);
- my_eof(thd);
- DBUG_RETURN(FALSE);
-}
-
-void show_master_info_get_fields(THD *thd, List<Item> *field_list,
- bool full, size_t gtid_pos_length)
-{
- Master_info *mi;
- MEM_ROOT *mem_root= thd->mem_root;
- DBUG_ENTER("show_master_info_get_fields");
-
- if (full)
- {
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Connection_name",
- MAX_CONNECTION_NAME),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Slave_SQL_State", 30),
- mem_root);
- }
-
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Slave_IO_State", 30),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_Host", sizeof(mi->host)),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_User", sizeof(mi->user)),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Master_Port", 7, MYSQL_TYPE_LONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Connect_Retry", 10,
- MYSQL_TYPE_LONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_Log_File", FN_REFLEN),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Read_Master_Log_Pos", 10,
- MYSQL_TYPE_LONGLONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Relay_Log_File", FN_REFLEN),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Relay_Log_Pos", 10,
- MYSQL_TYPE_LONGLONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Relay_Master_Log_File",
- FN_REFLEN),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Slave_IO_Running", 3),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Slave_SQL_Running", 3),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Replicate_Do_DB", 20),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Replicate_Ignore_DB", 20),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Replicate_Do_Table", 20),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Replicate_Ignore_Table", 23),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Replicate_Wild_Do_Table", 24),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Replicate_Wild_Ignore_Table",
- 28),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Last_Errno", 4, MYSQL_TYPE_LONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Last_Error", 20),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Skip_Counter", 10,
- MYSQL_TYPE_LONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Exec_Master_Log_Pos", 10,
- MYSQL_TYPE_LONGLONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Relay_Log_Space", 10,
- MYSQL_TYPE_LONGLONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Until_Condition", 6),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Until_Log_File", FN_REFLEN),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Until_Log_Pos", 10,
- MYSQL_TYPE_LONGLONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_SSL_Allowed", 7),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_SSL_CA_File",
- sizeof(mi->ssl_ca)),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_SSL_CA_Path",
- sizeof(mi->ssl_capath)),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_SSL_Cert",
- sizeof(mi->ssl_cert)),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_SSL_Cipher",
- sizeof(mi->ssl_cipher)),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_SSL_Key",
- sizeof(mi->ssl_key)),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Seconds_Behind_Master", 10,
- MYSQL_TYPE_LONGLONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_SSL_Verify_Server_Cert",
- 3),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Last_IO_Errno", 4,
- MYSQL_TYPE_LONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Last_IO_Error", 20),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Last_SQL_Errno", 4,
- MYSQL_TYPE_LONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Last_SQL_Error", 20),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Replicate_Ignore_Server_Ids",
- FN_REFLEN),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Master_Server_Id", sizeof(ulong),
- MYSQL_TYPE_LONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_SSL_Crl",
- sizeof(mi->ssl_crl)),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Master_SSL_Crlpath",
- sizeof(mi->ssl_crlpath)),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Using_Gtid",
- sizeof("Current_Pos")-1),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Gtid_IO_Pos", 30),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Replicate_Do_Domain_Ids",
- FN_REFLEN),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Replicate_Ignore_Domain_Ids",
- FN_REFLEN),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Parallel_Mode",
- sizeof("conservative")-1),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "SQL_Delay", 10,
- MYSQL_TYPE_LONG));
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "SQL_Remaining_Delay", 8,
- MYSQL_TYPE_LONG));
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Slave_SQL_Running_State",
- 20));
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Slave_DDL_Groups", 20,
- MYSQL_TYPE_LONGLONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Slave_Non_Transactional_Groups", 20,
- MYSQL_TYPE_LONGLONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Slave_Transactional_Groups", 20,
- MYSQL_TYPE_LONGLONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Replicate_Rewrite_DB", 23),
- mem_root);
-
- /*
- Note, we must never, _ever_, add extra rows to this output of SHOW SLAVE
- STATUS, except here at the end before the extra rows of SHOW ALL SLAVES
- STATUS. Otherwise, we break backwards compatibility with applications or
- scripts that parse the output!
-
- This also means that we cannot add _any_ new rows in a GA version if a
- different row was already added in a later MariaDB version, as this would
- make it impossible to merge the change up while preserving the order of
- rows.
- */
-
- if (full)
- {
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Retried_transactions", 10,
- MYSQL_TYPE_LONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Max_relay_log_size", 10,
- MYSQL_TYPE_LONGLONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Executed_log_entries", 10,
- MYSQL_TYPE_LONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_return_int(thd, "Slave_received_heartbeats", 10,
- MYSQL_TYPE_LONG),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_float(thd, "Slave_heartbeat_period", 0.0, 3, 10),
- mem_root);
- field_list->push_back(new (mem_root)
- Item_empty_string(thd, "Gtid_Slave_Pos",
- (uint)gtid_pos_length),
- mem_root);
- }
- DBUG_VOID_RETURN;
-}
-
/* Text for Slave_IO_Running */
static const LEX_CSTRING slave_running[]=
{
@@ -3171,146 +2856,170 @@ static const LEX_CSTRING msg_ignored= { STRING_WITH_LEN("Ignored") };
#endif
-static bool send_show_master_info_data(THD *thd, Master_info *mi, bool full,
- String *gtid_pos)
+inline void store_string_or_null(Field **field, const char *str)
+{
+ if (str)
+ (*field)->store(str, strlen(str), &my_charset_bin);
+ else
+ (*field)->set_null();
+}
+
+inline void store_string(Field **field, const char *str)
+{
+ (*field)->store(str, strlen(str), &my_charset_bin);
+}
+
+inline void store_string(Field **field, const LEX_CSTRING *str)
{
- DBUG_ENTER("send_show_master_info_data");
+ (*field)->store(str->str, str->length, &my_charset_bin);
+}
+
- if (mi->host[0])
+void store_list(Field **field, I_List<i_string>* str_list)
+{
+ char buf[256];
+ String tmp(buf, sizeof(buf), &my_charset_bin);
+ uint32 len;
+ I_List_iterator<i_string> it(*str_list);
+ i_string* s;
+
+ tmp.length(0);
+ while ((s=it++))
{
- DBUG_PRINT("info",("host is set: '%s'", mi->host));
- String *packet= &thd->packet;
- Protocol *protocol= thd->protocol;
- Rpl_filter *rpl_filter= mi->rpl_filter;
- StringBuffer<256> tmp;
- const char *msg;
+ tmp.append(s->ptr, strlen(s->ptr));
+ tmp.append(',');
+ }
+ if ((len= tmp.length()))
+ len--; // Remove last ','
+ (*field)->store((char*) tmp.ptr(), len, tmp.charset());
+}
- protocol->prepare_for_resend();
- /*
- slave_running can be accessed without run_lock but not other
- non-volotile members like mi->io_thd, which is guarded by the mutex.
- */
- if (full)
- protocol->store(mi->connection_name.str, mi->connection_name.length,
- &my_charset_bin);
- mysql_mutex_lock(&mi->run_lock);
- if (full)
- {
- /*
- Show what the sql driver replication thread is doing
- This is only meaningful if there is only one slave thread.
- */
- msg= (mi->rli.sql_driver_thd ?
- mi->rli.sql_driver_thd->get_proc_info() : "");
- protocol->store_string_or_null(msg, &my_charset_bin);
- }
- msg= mi->io_thd ? mi->io_thd->get_proc_info() : "";
- protocol->store_string_or_null(msg, &my_charset_bin);
+/*
+ Store master info for information_schema_tables
+*/
- mysql_mutex_unlock(&mi->run_lock);
+void store_master_info(THD *thd, Master_info *mi, TABLE *table,
+ String *gtid_pos)
+{
+ Field **field= table->field;
+ const char *msg;
+ Rpl_filter *rpl_filter= mi->rpl_filter;
+ StringBuffer<256> tmp;
+ time_t master_timestamp, slave_timestamp;
+ DBUG_ENTER("store_master_info_data");
- mysql_mutex_lock(&mi->data_lock);
- mysql_mutex_lock(&mi->rli.data_lock);
- /* err_lock is to protect mi->last_error() */
- mysql_mutex_lock(&mi->err_lock);
- /* err_lock is to protect mi->rli.last_error() */
- mysql_mutex_lock(&mi->rli.err_lock);
-
- DBUG_EXECUTE_IF("hold_sss_with_err_lock", {
- DBUG_ASSERT(!debug_sync_set_action(
- thd, STRING_WITH_LEN("now SIGNAL sss_got_err_lock "
- "WAIT_FOR sss_continue")));
+ table->clear_null_bits();
+
+ (*field++)->store(mi->connection_name.str, mi->connection_name.length,
+ &my_charset_bin);
+
+ mysql_mutex_lock(&mi->run_lock);
+ msg= (mi->rli.sql_driver_thd ?
+ mi->rli.sql_driver_thd->get_proc_info() : "");
+ store_string_or_null(field++, msg);
+ msg= mi->io_thd ? mi->io_thd->get_proc_info() : "";
+ store_string_or_null(field++, msg);
+ mysql_mutex_unlock(&mi->run_lock);
+
+ mysql_mutex_lock(&mi->data_lock);
+ mysql_mutex_lock(&mi->rli.data_lock);
+ /* err_lock is to protect mi->last_error() */
+ mysql_mutex_lock(&mi->err_lock);
+ /* err_lock is to protect mi->rli.last_error() */
+ mysql_mutex_lock(&mi->rli.err_lock);
+
+ DBUG_EXECUTE_IF("hold_sss_with_err_lock", {
+ DBUG_ASSERT(!debug_sync_set_action(thd,
+ STRING_WITH_LEN("now SIGNAL sss_got_err_lock "
+ "WAIT_FOR sss_continue")));
DBUG_SET("-d,hold_sss_with_err_lock");
});
- protocol->store_string_or_null(mi->host, &my_charset_bin);
- protocol->store_string_or_null(mi->user, &my_charset_bin);
- protocol->store((uint32) mi->port);
- protocol->store((uint32) mi->connect_retry);
- protocol->store(mi->master_log_name, strlen(mi->master_log_name),
+ store_string_or_null(field++, mi->host);
+ store_string_or_null(field++, mi->user);
+ (*field++)->store((uint32) mi->port);
+ (*field++)->store((uint32) mi->connect_retry);
+ (*field++)->store(mi->master_log_name, strlen(mi->master_log_name),
&my_charset_bin);
- protocol->store((ulonglong) mi->master_log_pos);
- msg= (mi->rli.group_relay_log_name +
- dirname_length(mi->rli.group_relay_log_name));
- protocol->store(msg, strlen(msg), &my_charset_bin);
- protocol->store((ulonglong) mi->rli.group_relay_log_pos);
- protocol->store(mi->rli.group_master_log_name,
- strlen(mi->rli.group_master_log_name),
- &my_charset_bin);
- protocol->store(&slave_running[mi->slave_running], &my_charset_bin);
- protocol->store(mi->rli.slave_running ? &msg_yes : &msg_no, &my_charset_bin);
- protocol->store(rpl_filter->get_do_db());
- protocol->store(rpl_filter->get_ignore_db());
-
- rpl_filter->get_do_table(&tmp);
- protocol->store(&tmp);
- rpl_filter->get_ignore_table(&tmp);
- protocol->store(&tmp);
- rpl_filter->get_wild_do_table(&tmp);
- protocol->store(&tmp);
- rpl_filter->get_wild_ignore_table(&tmp);
- protocol->store(&tmp);
-
- protocol->store(mi->rli.last_error().number);
- protocol->store_string_or_null(mi->rli.last_error().message,
- &my_charset_bin);
- protocol->store((uint32) mi->rli.slave_skip_counter);
- protocol->store((ulonglong) mi->rli.group_master_log_pos);
- protocol->store((ulonglong) mi->rli.log_space_total);
-
- msg= (mi->rli.until_condition==Relay_log_info::UNTIL_NONE ? "None" :
- (mi->rli.until_condition==Relay_log_info::UNTIL_MASTER_POS? "Master":
- (mi->rli.until_condition==Relay_log_info::UNTIL_RELAY_POS? "Relay":
- "Gtid")));
- protocol->store(msg, strlen(msg), &my_charset_bin);
- protocol->store_string_or_null(mi->rli.until_log_name, &my_charset_bin);
- protocol->store((ulonglong) mi->rli.until_log_pos);
+ (*field++)->store((ulonglong) mi->master_log_pos, true);
+ msg= (mi->rli.group_relay_log_name +
+ dirname_length(mi->rli.group_relay_log_name));
+ store_string(field++, msg);
+ (*field++)->store((ulonglong) mi->rli.group_relay_log_pos, true);
+ store_string(field++, mi->rli.group_master_log_name);
+ store_string(field++, &slave_running[mi->slave_running]);
+ store_string(field++, mi->rli.slave_running ? &msg_yes : &msg_no);
+ store_list(field++, rpl_filter->get_do_db());
+ store_list(field++, rpl_filter->get_ignore_db());
+
+ rpl_filter->get_do_table(&tmp);
+ (*field++)->store(tmp.ptr(), tmp.length(), &my_charset_bin);
+ rpl_filter->get_ignore_table(&tmp);
+ (*field++)->store(tmp.ptr(), tmp.length(), &my_charset_bin);
+ rpl_filter->get_wild_do_table(&tmp);
+ (*field++)->store(tmp.ptr(), tmp.length(), &my_charset_bin);
+ rpl_filter->get_wild_ignore_table(&tmp);
+ (*field++)->store(tmp.ptr(), tmp.length(), &my_charset_bin);
+
+ (*field++)->store(mi->rli.last_error().number);
+ store_string_or_null(field++, mi->rli.last_error().message);
+ (*field++)->store((uint32) mi->rli.slave_skip_counter);
+ (*field++)->store((ulonglong) mi->rli.group_master_log_pos, true);
+ (*field++)->store((ulonglong) mi->rli.log_space_total, true);
+
+ msg= (mi->rli.until_condition==Relay_log_info::UNTIL_NONE ? "None" :
+ (mi->rli.until_condition==Relay_log_info::UNTIL_MASTER_POS? "Master":
+ (mi->rli.until_condition==Relay_log_info::UNTIL_RELAY_POS? "Relay":
+ "Gtid")));
+ (*field++)->store(msg, strlen(msg), &my_charset_bin);
+ store_string_or_null(field++, mi->rli.until_log_name);
+ (*field++)->store((ulonglong) mi->rli.until_log_pos, true);
#ifdef HAVE_OPENSSL
- protocol->store(mi->ssl ? &msg_yes : &msg_no, &my_charset_bin);
+ (*field++)->store(mi->ssl ? &msg_yes : &msg_no, &my_charset_bin);
#else
- protocol->store(mi->ssl ? &msg_ignored: &msg_no, &my_charset_bin);
+ (*field++)->store(mi->ssl ? &msg_ignored: &msg_no, &my_charset_bin);
#endif
- protocol->store_string_or_null(mi->ssl_ca, &my_charset_bin);
- protocol->store_string_or_null(mi->ssl_capath, &my_charset_bin);
- protocol->store_string_or_null(mi->ssl_cert, &my_charset_bin);
- protocol->store_string_or_null(mi->ssl_cipher, &my_charset_bin);
- protocol->store_string_or_null(mi->ssl_key, &my_charset_bin);
+ store_string_or_null(field++, mi->ssl_ca);
+ store_string_or_null(field++, mi->ssl_capath);
+ store_string_or_null(field++, mi->ssl_cert);
+ store_string_or_null(field++, mi->ssl_cipher);
+ store_string_or_null(field++, mi->ssl_key);
- /*
- Seconds_Behind_Master: if SQL thread is running and I/O thread is
- connected, we can compute it otherwise show NULL (i.e. unknown).
- */
- if ((mi->slave_running == MYSQL_SLAVE_RUN_READING) &&
- mi->rli.slave_running)
- {
- long time_diff;
- bool idle;
- time_t stamp= mi->rli.last_master_timestamp;
+ /*
+ Seconds_Behind_Master: if SQL thread is running and I/O thread is
+ connected, we can compute it otherwise show NULL (i.e. unknown).
+ */
+ if ((mi->slave_running == MYSQL_SLAVE_RUN_READING) &&
+ mi->rli.slave_running)
+ {
+ long time_diff;
+ bool idle;
+ time_t stamp= mi->rli.last_master_timestamp;
- if (!stamp)
- idle= true;
- else
- {
- idle= mi->rli.sql_thread_caught_up;
+ if (!stamp)
+ idle= true;
+ else
+ {
+ idle= mi->rli.sql_thread_caught_up;
- /*
- The idleness of the SQL thread is needed for the parallel slave
- because events can be ignored before distribution to a worker thread.
- That is, Seconds_Behind_Master should still be calculated and visible
- while the slave is processing ignored events, such as those skipped
- due to slave_skip_counter.
- */
- if (mi->using_parallel() && idle &&
- !rpl_parallel::workers_idle(&mi->rli))
- idle= false;
- }
- if (idle)
- time_diff= 0;
- else
- {
- time_diff= ((long)(time(0) - stamp) - mi->clock_diff_with_master);
+ /*
+ The idleness of the SQL thread is needed for the parallel slave
+ because events can be ignored before distribution to a worker thread.
+ That is, Seconds_Behind_Master should still be calculated and visible
+ while the slave is processing ignored events, such as those skipped
+ due to slave_skip_counter.
+ */
+ if (mi->using_parallel() && idle &&
+ !rpl_parallel::workers_idle(&mi->rli))
+ idle= false;
+ }
+ if (idle)
+ time_diff= 0;
+ else
+ {
+ time_diff= ((long)(time(0) - stamp) - mi->clock_diff_with_master);
/*
Apparently on some systems time_diff can be <0. Here are possible
reasons related to MySQL:
@@ -3331,102 +3040,121 @@ static bool send_show_master_info_data(THD *thd, Master_info *mi, bool full,
last_master_timestamp == 0 (an "impossible" timestamp 1970) is a
special marker to say "consider we have caught up".
*/
- if (time_diff < 0)
- time_diff= 0;
- }
- protocol->store((longlong)time_diff);
- }
- else
- {
- protocol->store_null();
+ if (time_diff < 0)
+ time_diff= 0;
}
- protocol->store(mi->ssl_verify_server_cert? &msg_yes : &msg_no,
+ (*field++)->store((longlong)time_diff, true);
+ }
+ else
+ (*field++)->set_null();
+
+ (*field++)->store(mi->ssl_verify_server_cert? &msg_yes : &msg_no,
&my_charset_bin);
- // Last_IO_Errno
- protocol->store(mi->last_error().number);
- // Last_IO_Error
- protocol->store_string_or_null(mi->last_error().message, &my_charset_bin);
- // Last_SQL_Errno
- protocol->store(mi->rli.last_error().number);
- // Last_SQL_Error
- protocol->store_string_or_null(mi->rli.last_error().message,
- &my_charset_bin);
- // Replicate_Ignore_Server_Ids
- prot_store_ids(thd, &mi->ignore_server_ids);
- // Master_Server_id
- protocol->store((uint32) mi->master_id);
- // SQL_Delay
- // Master_Ssl_Crl
- protocol->store_string_or_null(mi->ssl_crl, &my_charset_bin);
- // Master_Ssl_Crlpath
- protocol->store_string_or_null(mi->ssl_crlpath, &my_charset_bin);
- // Using_Gtid
- protocol->store_string_or_null(mi->using_gtid_astext(mi->using_gtid),
- &my_charset_bin);
- // Gtid_IO_Pos
- {
- mi->gtid_current_pos.to_string(&tmp);
- protocol->store(tmp.ptr(), tmp.length(), &my_charset_bin);
- }
+ // Last_IO_Errno
+ (*field++)->store(mi->last_error().number);
+ // Last_IO_Error
+ store_string_or_null(field++, mi->last_error().message);
+ // Last_SQL_Errno
+ (*field++)->store(mi->rli.last_error().number);
+ // Last_SQL_Error
+ store_string_or_null(field++, mi->rli.last_error().message);
+ // Replicate_Ignore_Server_Ids
+ field_store_ids((*field++), &mi->ignore_server_ids);
+ // Master_Server_id
+ (*field++)->store((uint32) mi->master_id);
+ // SQL_Delay
+ // Master_Ssl_Crl
+ store_string_or_null(field++, mi->ssl_crl);
+ // Master_Ssl_Crlpath
+ store_string_or_null(field++, mi->ssl_crlpath);
+ // Using_Gtid
+ store_string_or_null(field++, mi->using_gtid_astext(mi->using_gtid));
+ // Gtid_IO_Pos
+ {
+ mi->gtid_current_pos.to_string(&tmp);
+ (*field++)->store(tmp.ptr(), tmp.length(), &my_charset_bin);
+ }
- // Replicate_Do_Domain_Ids & Replicate_Ignore_Domain_Ids
- mi->domain_id_filter.store_ids(thd);
+ // Replicate_Do_Domain_Ids & Replicate_Ignore_Domain_Ids
+ mi->domain_id_filter.store_ids(&field);
- // Parallel_Mode
- {
- const char *mode_name= get_type(&slave_parallel_mode_typelib,
- mi->parallel_mode);
- protocol->store(mode_name, strlen(mode_name), &my_charset_bin);
- }
+ // Parallel_Mode
+ {
+ const char *mode_name= get_type(&slave_parallel_mode_typelib,
+ mi->parallel_mode);
+ (*field++)->store(mode_name, strlen(mode_name), &my_charset_bin);
+ }
+
+ (*field++)->store((uint32) mi->rli.get_sql_delay());
+ // SQL_Remaining_Delay
+ // THD::proc_info is not protected by any lock, so we read it once
+ // to ensure that we use the same value throughout this function.
+ const char *slave_sql_running_state=
+ mi->rli.sql_driver_thd ? mi->rli.sql_driver_thd->proc_info : "";
+ if (slave_sql_running_state == stage_sql_thd_waiting_until_delay.m_name)
+ {
+ time_t t= my_time(0), sql_delay_end= mi->rli.get_sql_delay_end();
+ (*field++)->store((uint32)(t < sql_delay_end ? sql_delay_end - t : 0));
+ }
+ else
+ (*field++)->set_null();
+ // Slave_SQL_Running_State
+ store_string_or_null(field++, slave_sql_running_state);
+
+ (*field++)->store(mi->total_ddl_groups, true);
+ (*field++)->store(mi->total_non_trans_groups, true);
+ (*field++)->store(mi->total_trans_groups, true);
+ rpl_filter->get_rewrite_db(&tmp);
+ (*field++)->store(tmp.ptr(), tmp.length(), &my_charset_bin);
+
+ (*field++)->store((uint32) mi->rli.retried_trans, true);
+ (*field++)->store((ulonglong) mi->rli.max_relay_log_size, true);
+ (*field++)->store(mi->rli.executed_entries, true);
+ (*field++)->store((uint) mi->received_heartbeats, true);
+ (*field++)->store((double) mi->heartbeat_period);
+ (*field++)->store(gtid_pos->ptr(), gtid_pos->length(), &my_charset_bin);
- protocol->store((uint32) mi->rli.get_sql_delay());
- // SQL_Remaining_Delay
- // THD::proc_info is not protected by any lock, so we read it once
- // to ensure that we use the same value throughout this function.
- const char *slave_sql_running_state=
- mi->rli.sql_driver_thd ? mi->rli.sql_driver_thd->proc_info : "";
- if (slave_sql_running_state == stage_sql_thd_waiting_until_delay.m_name)
+ /*
+ newest_master_timestamp is a guard for both newest_master_timestamp and
+ slave_timestamp. This is needed as newest_master_timestamp is only
+ updated when a commit is read while slave_timestamp is updated at
+ first event read from the relay log, which can happen before
+ newest_master_timestamp is read.
+ The below code also protects against a concurrent reset_slave().
+ */
+ if ((master_timestamp= mi->rli.newest_master_timestamp))
+ {
+ (*field++)->store_timestamp((my_time_t) master_timestamp, 0);
+ if ((slave_timestamp= mi->rli.slave_timestamp))
{
- time_t t= my_time(0), sql_delay_end= mi->rli.get_sql_delay_end();
- protocol->store((uint32)(t < sql_delay_end ? sql_delay_end - t : 0));
+ (*field++)->store_timestamp((my_time_t) slave_timestamp, 0);
+ (*field++)->store((uint) (master_timestamp - slave_timestamp), true);
}
else
- protocol->store_null();
- // Slave_SQL_Running_State
- protocol->store_string_or_null(slave_sql_running_state, &my_charset_bin);
-
- protocol->store(mi->total_ddl_groups);
- protocol->store(mi->total_non_trans_groups);
- protocol->store(mi->total_trans_groups);
- protocol->store(rpl_filter->get_rewrite_db());
-
- if (full)
{
- protocol->store((uint32) mi->rli.retried_trans);
- protocol->store((ulonglong) mi->rli.max_relay_log_size);
- protocol->store(mi->rli.executed_entries);
- protocol->store((uint32) mi->received_heartbeats);
- protocol->store_double(mi->heartbeat_period, 3);
- protocol->store(gtid_pos->ptr(), gtid_pos->length(), &my_charset_bin);
+ (*field++)->set_null();
+ (*field++)->set_null();
}
-
- mysql_mutex_unlock(&mi->rli.err_lock);
- mysql_mutex_unlock(&mi->err_lock);
- mysql_mutex_unlock(&mi->rli.data_lock);
- mysql_mutex_unlock(&mi->data_lock);
-
- if (my_net_write(&thd->net, (uchar*) thd->packet.ptr(), packet->length()))
- DBUG_RETURN(TRUE);
}
- DBUG_RETURN(FALSE);
+ else
+ {
+ (*field++)->set_null();
+ (*field++)->set_null();
+ (*field++)->set_null();
+ }
+ mysql_mutex_unlock(&mi->rli.err_lock);
+ mysql_mutex_unlock(&mi->err_lock);
+ mysql_mutex_unlock(&mi->rli.data_lock);
+ mysql_mutex_unlock(&mi->data_lock);
+ DBUG_VOID_RETURN;
}
/* Used to sort connections by name */
-static int cmp_mi_by_name(const Master_info **arg1,
- const Master_info **arg2)
+int cmp_mi_by_name(const Master_info **arg1,
+ const Master_info **arg2)
{
return Lex_ident_master_info::charset_info()->strnncoll(
(*arg1)->connection_name,
@@ -3434,72 +3162,6 @@ static int cmp_mi_by_name(const Master_info **arg1,
}
-/**
- Execute a SHOW FULL SLAVE STATUS statement.
-
- @param thd Pointer to THD object for the client thread executing the
- statement.
-
- Elements are sorted according to the original connection_name.
-
- @retval FALSE success
- @retval TRUE failure
-
- @note
- master_info_index is protected by LOCK_active_mi.
-*/
-
-bool show_all_master_info(THD* thd)
-{
- uint i, elements;
- String gtid_pos;
- Master_info **tmp;
- List<Item> field_list;
- DBUG_ENTER("show_all_master_info");
- mysql_mutex_assert_owner(&LOCK_active_mi);
-
- gtid_pos.length(0);
- if (rpl_append_gtid_state(>id_pos, true))
- {
- my_error(ER_OUT_OF_RESOURCES, MYF(0));
- DBUG_RETURN(TRUE);
- }
-
- show_master_info_get_fields(thd, &field_list, 1, gtid_pos.length());
- if (thd->protocol->send_result_set_metadata(&field_list,
- Protocol::SEND_NUM_ROWS | Protocol::SEND_EOF))
- DBUG_RETURN(TRUE);
-
- if (!master_info_index ||
- !(elements= master_info_index->master_info_hash.records))
- goto end;
-
- /*
- Sort lines to get them into a predicted order
- (needed for test cases and to not confuse users)
- */
- if (!(tmp= (Master_info**) thd->alloc(sizeof(Master_info*) * elements)))
- DBUG_RETURN(TRUE);
-
- for (i= 0; i < elements; i++)
- {
- tmp[i]= (Master_info *) my_hash_element(&master_info_index->
- master_info_hash, i);
- }
- my_qsort(tmp, elements, sizeof(Master_info*), (qsort_cmp) cmp_mi_by_name);
-
- for (i= 0; i < elements; i++)
- {
- if (send_show_master_info_data(thd, tmp[i], 1, >id_pos))
- DBUG_RETURN(TRUE);
- }
-
-end:
- my_eof(thd);
- DBUG_RETURN(FALSE);
-}
-
-
void set_slave_thread_options(THD* thd)
{
DBUG_ENTER("set_slave_thread_options");
@@ -4353,13 +4015,32 @@ static int exec_relay_log_event(THD* thd, Relay_log_info* rli,
the user might be surprised to see a claim that the slave is up to date
long before those queued events are actually executed.
*/
- if ((!rli->mi->using_parallel()) &&
- event_can_update_last_master_timestamp(ev))
+ if (event_can_update_last_master_timestamp(ev))
{
- rli->last_master_timestamp= ev->when + ev->exec_time;
- rli->sql_thread_caught_up= false;
- }
+ if ((!rli->mi->using_parallel()))
+ {
+ rli->last_master_timestamp= ev->when + (time_t) ev->exec_time;
+ rli->sql_thread_caught_up= false;
+ /*
+ For slave_timestamp, we update slave_timestamp at the end of the
+ transaction, so we follow the pattern of the parallel slave and
+ cache the timestamp of the last-event of the transaction within the
+ RGI, and then use it to update slave_timestamp at commit-time.
+ */
+ if (Log_event::is_group_event(typ))
+ serial_rgi->last_master_timestamp= rli->last_master_timestamp;
+ }
+
+ if (unlikely(!rli->slave_timestamp) && Log_event::is_group_event(typ))
+ {
+ /*
+ First event for this slave. Assume that all the slave was up to date
+ with the master just before the current event.
+ */
+ rli->slave_timestamp= (time_t) ev->when + (time_t) ev->exec_time-1;
+ }
+ }
/*
This tests if the position of the beginning of the current event
hits the UNTIL barrier.
@@ -7027,6 +6708,23 @@ static int queue_event(Master_info* mi, const uchar *buf, ulong event_len)
}
else
{
+ /*
+ replay_log.description_event_for_exec can be null if the slave thread
+ is getting killed
+ */
+ if (LOG_EVENT_IS_QUERY((Log_event_type) buf[EVENT_TYPE_OFFSET]) ||
+ LOG_EVENT_IS_LOAD_DATA((Log_event_type) buf[EVENT_TYPE_OFFSET]))
+ {
+ time_t exec_time= query_event_get_time(buf, rli->relay_log.
+ description_event_for_queue);
+ set_if_bigger(rli->newest_master_timestamp, exec_time);
+ }
+ else if (((Log_event_type) buf[EVENT_TYPE_OFFSET]) == XID_EVENT)
+ {
+ /* XID_EVENT is used for COMMIT */
+ time_t commit_time= uint4korr(buf);
+ set_if_bigger(rli->newest_master_timestamp, commit_time);
+ }
if (mi->do_accept_own_server_id)
{
int2store(const_cast<uchar*>(buf + FLAGS_OFFSET),
diff --git a/sql/slave.h b/sql/slave.h
index 02de9135c2a..5dd7d6e262b 100644
--- a/sql/slave.h
+++ b/sql/slave.h
@@ -279,7 +279,9 @@ void slave_background_kill_request(THD *to_kill);
void slave_background_gtid_pos_create_request
(rpl_slave_state::gtid_pos_table *table_entry);
void slave_background_gtid_pending_delete_request(void);
-
+void store_master_info(THD *thd, Master_info *mi, TABLE *table,
+ String *gtid_pos);
+int cmp_mi_by_name(const Master_info **arg1, const Master_info **arg2);
extern Master_info *active_mi; /* active_mi for multi-master */
extern Master_info *default_master_info; /* To replace active_mi */
extern Master_info_index *master_info_index;
diff --git a/sql/sql_class.h b/sql/sql_class.h
index 2d671139a6c..05c9c4e8012 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -3168,6 +3168,7 @@ class THD: public THD_count, /* this must be first */
ulonglong start_utime, utime_after_lock, utime_after_query;
/* This can be used by handlers to send signals to the SQL level */
ulonglong replication_flags;
+ my_time_t orig_exec_time; // Exec time for last read binlog event
// Process indicator
struct {
/*
diff --git a/sql/sql_cmd.h b/sql/sql_cmd.h
index bedd7e118f0..c9681c25d9f 100644
--- a/sql/sql_cmd.h
+++ b/sql/sql_cmd.h
@@ -397,26 +397,6 @@ class Sql_cmd_dml : public Sql_cmd
};
-class Sql_cmd_show_slave_status: public Sql_cmd
-{
-protected:
- bool show_all_slaves_status;
-public:
- Sql_cmd_show_slave_status()
- :show_all_slaves_status(false)
- {}
-
- Sql_cmd_show_slave_status(bool status_all)
- :show_all_slaves_status(status_all)
- {}
-
- enum_sql_command sql_command_code() const { return SQLCOM_SHOW_SLAVE_STAT; }
-
- bool execute(THD *thd);
- bool is_show_all_slaves_stat() { return show_all_slaves_status; }
-};
-
-
class Sql_cmd_create_table_like: public Sql_cmd,
public Storage_engine_name
{
diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index 93756d8d80d..0b1f3cf8e15 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -499,6 +499,8 @@ struct LEX_MASTER_INFO
int sql_delay;
bool is_demotion_opt;
bool is_until_before_gtids;
+ bool show_all_slaves;
+
/*
Enum is used for making it possible to detect if the user
changed variable or if it should be left at old value
diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc
index 507a068b731..01fb010e974 100644
--- a/sql/sql_parse.cc
+++ b/sql/sql_parse.cc
@@ -3916,6 +3916,7 @@ mysql_execute_command(THD *thd, bool is_called_from_prepared_stmt)
case SQLCOM_SHOW_COLLATIONS:
case SQLCOM_SHOW_STORAGE_ENGINES:
case SQLCOM_SHOW_PROFILE:
+ case SQLCOM_SHOW_SLAVE_STAT:
case SQLCOM_SELECT:
{
#ifdef WITH_WSREP
@@ -5829,7 +5830,6 @@ mysql_execute_command(THD *thd, bool is_called_from_prepared_stmt)
DBUG_ASSERT(first_table == all_tables && first_table != 0);
/* fall through */
case SQLCOM_ALTER_SEQUENCE:
- case SQLCOM_SHOW_SLAVE_STAT:
case SQLCOM_SIGNAL:
case SQLCOM_RESIGNAL:
case SQLCOM_GET_DIAGNOSTICS:
diff --git a/sql/sql_prepare.cc b/sql/sql_prepare.cc
index 6261ba46cac..4a0f55562d7 100644
--- a/sql/sql_prepare.cc
+++ b/sql/sql_prepare.cc
@@ -1861,30 +1861,6 @@ static int mysql_test_show_grants(Prepared_statement *stmt)
#ifndef EMBEDDED_LIBRARY
-/**
- Validate and prepare for execution SHOW SLAVE STATUS statement.
-
- @param stmt prepared statement
-
- @retval
- FALSE success
- @retval
- TRUE error, error message is set in THD
-*/
-
-static int mysql_test_show_slave_status(Prepared_statement *stmt,
- bool show_all_slaves_stat)
-{
- DBUG_ENTER("mysql_test_show_slave_status");
- THD *thd= stmt->thd;
- List<Item> fields;
-
- show_master_info_get_fields(thd, &fields, show_all_slaves_stat, 0);
-
- DBUG_RETURN(send_stmt_metadata(thd, stmt, &fields));
-}
-
-
/**
Validate and prepare for execution SHOW BINLOG STATUS statement.
@@ -2309,6 +2285,7 @@ static bool check_prepared_statement(Prepared_statement *stmt)
case SQLCOM_SHOW_STATUS_FUNC:
case SQLCOM_SHOW_STATUS_PACKAGE:
case SQLCOM_SHOW_STATUS_PACKAGE_BODY:
+ case SQLCOM_SHOW_SLAVE_STAT:
case SQLCOM_SELECT:
res= mysql_test_select(stmt, tables);
if (res == 2)
@@ -2345,21 +2322,6 @@ static bool check_prepared_statement(Prepared_statement *stmt)
break;
#endif /* NO_EMBEDDED_ACCESS_CHECKS */
#ifndef EMBEDDED_LIBRARY
- case SQLCOM_SHOW_SLAVE_STAT:
- {
- DBUG_ASSERT(thd->lex->m_sql_cmd);
- Sql_cmd_show_slave_status *cmd;
- cmd= dynamic_cast<Sql_cmd_show_slave_status*>(thd->lex->m_sql_cmd);
- DBUG_ASSERT(cmd);
- if ((res= mysql_test_show_slave_status(stmt,
- cmd->is_show_all_slaves_stat()))
- == 2)
- {
- /* Statement and field info has already been sent */
- DBUG_RETURN(FALSE);
- }
- break;
- }
case SQLCOM_SHOW_BINLOG_STAT:
if ((res= mysql_test_show_binlog_status(stmt)) == 2)
{
diff --git a/sql/sql_repl.cc b/sql/sql_repl.cc
index 8ca252c37c6..ba8266d46e9 100644
--- a/sql/sql_repl.cc
+++ b/sql/sql_repl.cc
@@ -3700,6 +3700,8 @@ int reset_slave(THD *thd, Master_info* mi)
mi->rli.clear_until_condition();
mi->rli.clear_sql_delay();
mi->rli.slave_skip_counter= 0;
+ mi->rli.newest_master_timestamp= 0;
+ mi->rli.slave_timestamp= 0;
// close master_info_file, relay_log_info_file, set mi->inited=rli->inited=0
end_master_info(mi);
diff --git a/sql/sql_show.cc b/sql/sql_show.cc
index aa494b90d36..d7d798eb36f 100644
--- a/sql/sql_show.cc
+++ b/sql/sql_show.cc
@@ -47,6 +47,8 @@
#include "sql_derived.h"
#include "sql_statistics.h"
#include "sql_connect.h"
+#include "sql_repl.h" // rpl_load_gtid_state
+#include "rpl_mi.h" // master_info_index
#include "authors.h"
#include "contributors.h"
#include "sql_partition.h"
@@ -8836,6 +8838,90 @@ TABLE *create_schema_table(THD *thd, TABLE_LIST *table_list)
}
+#ifdef HAVE_REPLICATION
+int fill_slave_status(THD *thd, TABLE_LIST *tables, COND *cond)
+{
+ String gtid_pos;
+ Master_info **tmp;
+ TABLE *table= tables->table;
+ uint elements, i;
+ bool single_slave= (thd->lex->sql_command == SQLCOM_SHOW_SLAVE_STAT &&
+ !thd->lex->mi.show_all_slaves);
+ DBUG_ENTER("fill_slave_status");
+
+ if (check_global_access(thd, PRIV_STMT_SHOW_SLAVE_STATUS))
+ DBUG_RETURN(TRUE);
+
+ gtid_pos.length(0);
+ if (rpl_append_gtid_state(>id_pos, true))
+ {
+ my_error(ER_OUT_OF_RESOURCES, MYF(0));
+ DBUG_RETURN(TRUE);
+ }
+
+ if (!master_info_index ||
+ !(elements= master_info_index->master_info_hash.records))
+ {
+ /* No registered slaves */
+ return 0;
+ }
+
+ /*
+ Sort lines to get them into a predicted order
+ (needed for test cases and to not confuse users)
+ */
+ if (!(tmp= (Master_info**) thd->alloc(sizeof(Master_info*) * elements)))
+ goto error;
+
+ if (single_slave)
+ {
+ LEX_MASTER_INFO *lex_mi= &thd->lex->mi;
+ Master_info *mi;
+ if ((mi= get_master_info(&lex_mi->connection_name,
+ Sql_condition::WARN_LEVEL_ERROR)))
+ {
+ bool res= 0;
+ if (mi->host[0])
+ {
+ store_master_info(thd, mi, table, >id_pos);
+ res= schema_table_store_record(thd, table);
+ }
+ mi->release();
+ if (res)
+ goto error;
+ }
+ }
+ else
+ {
+ mysql_mutex_lock(&LOCK_active_mi);
+ for (i= 0; i < elements; i++)
+ {
+ tmp[i]= (Master_info *) my_hash_element(&master_info_index->
+ master_info_hash, i);
+ }
+ my_qsort(tmp, elements, sizeof(Master_info*), (qsort_cmp) cmp_mi_by_name);
+
+ for (i= 0; i < elements; i++)
+ {
+ if (tmp[i]->host[0])
+ {
+ store_master_info(thd, tmp[i], table, >id_pos);
+ if (schema_table_store_record(thd, table))
+ {
+ mysql_mutex_unlock(&LOCK_active_mi);
+ goto error;
+ }
+ }
+ }
+ mysql_mutex_unlock(&LOCK_active_mi);
+ }
+ DBUG_RETURN(0);
+
+error:
+ DBUG_RETURN(1);
+}
+#endif
+
/*
For old SHOW compatibility. It is used when
old SHOW doesn't have generated column names
@@ -8862,12 +8948,11 @@ static int make_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
LEX_CSTRING field_name= field_info->name();
Item_field *field= new (thd->mem_root)
Item_field(thd, context, field_name);
- if (field)
- {
- field->set_name(thd, field_info->old_name());
- if (add_item_to_list(thd, field))
- return 1;
- }
+ if (!field)
+ return 1;
+ field->set_name(thd, field_info->old_name());
+ if (add_item_to_list(thd, field))
+ return 1;
}
}
return 0;
@@ -8922,14 +9007,14 @@ int make_table_names_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
buffer.append(')');
}
Item_field *field= new (thd->mem_root) Item_field(thd, context, field_name);
- if (add_item_to_list(thd, field))
+ if (!field || add_item_to_list(thd, field))
return 1;
field->set_name(thd, &buffer);
if (thd->lex->verbose)
{
field_info= &schema_table->fields_info[3];
field= new (thd->mem_root) Item_field(thd, context, field_info->name());
- if (add_item_to_list(thd, field))
+ if (! field || add_item_to_list(thd, field))
return 1;
field->set_name(thd, field_info->old_name());
}
@@ -8953,12 +9038,11 @@ int make_columns_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
continue;
Item_field *field= new (thd->mem_root) Item_field(thd, context,
field_info->name());
- if (field)
- {
- field->set_name(thd, field_info->old_name());
- if (add_item_to_list(thd, field))
- return 1;
- }
+ if (!field)
+ return 1;
+ field->set_name(thd, field_info->old_name());
+ if (add_item_to_list(thd, field))
+ return 1;
}
return 0;
}
@@ -8976,17 +9060,15 @@ int make_character_sets_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
field_info= &schema_table->fields_info[*field_num];
Item_field *field= new (thd->mem_root) Item_field(thd, context,
field_info->name());
- if (field)
- {
- field->set_name(thd, field_info->old_name());
- if (add_item_to_list(thd, field))
- return 1;
- }
+ if (!field)
+ return 1;
+ field->set_name(thd, field_info->old_name());
+ if (add_item_to_list(thd, field))
+ return 1;
}
return 0;
}
-
int make_proc_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
{
int fields_arr[]= {2, 3, 4, 27, 24, 23, 22, 26, 28, 29, 30, -1};
@@ -8999,10 +9081,44 @@ int make_proc_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
field_info= &schema_table->fields_info[*field_num];
Item_field *field= new (thd->mem_root) Item_field(thd, context,
field_info->name());
- if (field)
+ if (!field)
+ return 1;
+ field->set_name(thd, field_info->old_name());
+ if (add_item_to_list(thd, field))
+ return 1;
+ }
+ return 0;
+}
+
+
+static int make_slave_status_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
+{
+ ST_FIELD_INFO *field_info= schema_table->fields_info;
+ Name_resolution_context *context= &thd->lex->first_select_lex()->context;
+ DBUG_ASSERT(thd->lex->sql_command == SQLCOM_SHOW_SLAVE_STAT);
+ bool all_slaves= thd->lex->mi.show_all_slaves;
+ ulonglong used_fields= ~0ULL;
+
+ if (!all_slaves)
+ {
+ /* Remove 2 first fields and all fields above and including field 55 */
+ used_fields&= ~((1ULL << 0) | (1ULL << 1));
+ used_fields&= ((1ULL << 56)-1);
+ }
+
+ for (uint i=0; !field_info->end_marker(); field_info++, i++)
+ {
+ /*
+ We have all_slaves here to take into account that we some day may have
+ more than 64 fields in the list. If all_slaves is set we should show
+ all fields.
+ */
+ if (all_slaves || (used_fields & ((1ULL << i))))
{
- field->set_name(thd, field_info->old_name());
- if (add_item_to_list(thd, field))
+ LEX_CSTRING field_name= field_info->name();
+ Item_field *field= new (thd->mem_root)
+ Item_field(thd, context, field_name);
+ if (!field || add_item_to_list(thd, field))
return 1;
}
}
@@ -10249,10 +10365,7 @@ ST_FIELD_INFO files_fields_info[]=
void init_fill_schema_files_row(TABLE* table)
{
- int i;
- for(i=0; !Show::files_fields_info[i].end_marker(); i++)
- table->field[i]->set_null();
-
+ table->set_null_bits();
table->field[IS_FILES_STATUS]->set_notnull();
table->field[IS_FILES_STATUS]->store("NORMAL", 6, system_charset_info);
}
@@ -10414,8 +10527,78 @@ ST_FIELD_INFO check_constraints_fields_info[]=
CEnd()
};
-}; // namespace Show
+ST_FIELD_INFO slave_status_info[]=
+{
+ Column("Connection_name", Name(), NOT_NULL),
+ Column("Slave_SQL_State", Varchar(64), NULLABLE),
+ Column("Slave_IO_State", Varchar(64), NULLABLE),
+ Column("Master_Host", Varchar(HOSTNAME_LENGTH), NULLABLE),
+ Column("Master_User", Varchar(USERNAME_LENGTH), NULLABLE),
+ Column("Master_Port", ULong(7), NOT_NULL),
+ Column("Connect_Retry", SLong(10), NOT_NULL),
+ Column("Master_Log_File", Varchar(FN_REFLEN), NOT_NULL),
+ Column("Read_Master_Log_Pos", ULonglong(10), NOT_NULL),
+ Column("Relay_Log_File", Varchar(FN_REFLEN), NOT_NULL),
+ Column("Relay_Log_Pos", ULonglong(10), NOT_NULL),
+ Column("Relay_Master_Log_File", Varchar(FN_REFLEN), NOT_NULL),
+ Column("Slave_IO_Running", Varchar(10), NOT_NULL),
+ Column("Slave_SQL_Running", Varchar(3), NOT_NULL),
+ Column("Replicate_Do_DB", Name(), NOT_NULL),
+ Column("Replicate_Ignore_DB", Name(), NOT_NULL),
+ Column("Replicate_Do_Table", Name(), NOT_NULL),
+ Column("Replicate_Ignore_Table", Name(), NOT_NULL),
+ Column("Replicate_Wild_Do_Table", Name(), NOT_NULL),
+ Column("Replicate_Wild_Ignore_Table", Name(), NOT_NULL),
+ Column("Last_Errno", SLong(4), NOT_NULL),
+ Column("Last_Error", Varchar(20), NULLABLE),
+ Column("Skip_Counter", ULong(10), NOT_NULL),
+ Column("Exec_Master_Log_Pos", ULonglong(10), NOT_NULL),
+ Column("Relay_Log_Space", ULonglong(10), NOT_NULL),
+ Column("Until_Condition", Varchar(6), NOT_NULL),
+ Column("Until_Log_File", Varchar(FN_REFLEN), NULLABLE),
+ Column("Until_Log_Pos", ULonglong(10), NOT_NULL),
+ Column("Master_SSL_Allowed", Varchar(7), NULLABLE),
+ Column("Master_SSL_CA_File", Varchar(FN_REFLEN), NULLABLE),
+ Column("Master_SSL_CA_Path", Varchar(FN_REFLEN), NULLABLE),
+ Column("Master_SSL_Cert", Varchar(FN_REFLEN), NULLABLE),
+ Column("Master_SSL_Cipher", Varchar(FN_REFLEN), NULLABLE),
+ Column("Master_SSL_Key", Varchar(FN_REFLEN), NULLABLE),
+ Column("Seconds_Behind_Master", SLonglong(10), NULLABLE),
+ Column("Master_SSL_Verify_Server_Cert", Varchar(3), NOT_NULL),
+ Column("Last_IO_Errno", SLong(4), NOT_NULL),
+ Column("Last_IO_Error", Varchar(MYSQL_ERRMSG_SIZE), NULLABLE),
+ Column("Last_SQL_Errno", SLong(4), NOT_NULL),
+ Column("Last_SQL_Error", Varchar(MYSQL_ERRMSG_SIZE), NULLABLE),
+ Column("Replicate_Ignore_Server_Ids", Varchar(FN_REFLEN), NOT_NULL),
+ Column("Master_Server_Id", ULong(10), NOT_NULL),
+ Column("Master_SSL_Crl", Varchar(FN_REFLEN), NULLABLE),
+ Column("Master_SSL_Crlpath", Varchar(FN_REFLEN), NULLABLE),
+ Column("Using_Gtid", Varchar(15), NULLABLE),
+ Column("Gtid_IO_Pos", Varchar(1024), NOT_NULL),
+ Column("Replicate_Do_Domain_Ids", Varchar(FN_REFLEN), NOT_NULL),
+ Column("Replicate_Ignore_Domain_Ids", Varchar(FN_REFLEN), NOT_NULL),
+ Column("Parallel_Mode", Varchar(15), NOT_NULL),
+ Column("SQL_Delay", ULong(10), NOT_NULL),
+ Column("SQL_Remaining_Delay", ULong(10), NULLABLE),
+ Column("Slave_SQL_Running_State", Varchar(64), NULLABLE),
+ Column("Slave_DDL_Groups", ULonglong(20), NOT_NULL),
+ Column("Slave_Non_Transactional_Groups", ULonglong(20), NOT_NULL),
+ Column("Slave_Transactional_Groups", ULonglong(20), NOT_NULL),
+ Column("Replicate_Rewrite_DB",Varchar(1024), NOT_NULL),
+ Column("Retried_transactions", ULong(10), NOT_NULL),
+ Column("Max_relay_log_size", ULonglong(10), NOT_NULL),
+ Column("Executed_log_entries", ULong(10), NOT_NULL),
+ Column("Slave_received_heartbeats", ULong(10), NOT_NULL),
+ Column("Slave_heartbeat_period", Float(703), NOT_NULL), // 3 decimals
+ Column("Gtid_Slave_Pos", Varchar(FN_REFLEN), NOT_NULL),
+ Column("Master_last_event_time", Datetime(0), NULLABLE),
+ Column("Slave_last_event_time", Datetime(0), NULLABLE),
+ Column("Master_Slave_time_diff", SLonglong(10), NULLABLE),
+ CEnd()
+};
+
+}; // namespace Show
namespace Show {
@@ -10565,6 +10748,10 @@ ST_SCHEMA_TABLE schema_tables[]=
{"VIEWS"_Lex_ident_i_s_table, Show::view_fields_info, 0,
get_all_tables, 0, get_schema_views_record, 1, 2, 0,
OPEN_VIEW_ONLY|OPTIMIZE_I_S_TABLE|I_S_EXTENDED_ERROR_HANDLING},
+#ifdef HAVE_REPLICATION
+ {"SLAVE_STATUS"_Lex_ident_i_s_table, Show::slave_status_info, 0,
+ fill_slave_status, make_slave_status_old_format, 0, 1, 0, 0, 0 },
+#endif
{Lex_ident_i_s_table(), 0, 0, 0, 0, 0, 0, 0, 0, 0}
};
diff --git a/sql/sql_type.cc b/sql/sql_type.cc
index 0c505c29503..dc5daac0341 100644
--- a/sql/sql_type.cc
+++ b/sql/sql_type.cc
@@ -3971,12 +3971,22 @@ Field *Type_handler_float::make_schema_field(MEM_ROOT *root, TABLE *table,
const ST_FIELD_INFO &def) const
{
LEX_CSTRING name= def.name();
+ uint32 len= def.char_length();
+ uint dec= NOT_FIXED_DEC;
+ if (len >= 100)
+ {
+ dec= def.decimal_scale();
+ uint prec= def.decimal_precision();
+ /* Field defined in sql_show.cc with decimals */
+ len= my_decimal_precision_to_length(prec, dec, 0);
+ }
+
return new (root)
- Field_float(addr.ptr(), def.char_length(),
- addr.null_ptr(), addr.null_bit(),
- Field::NONE, &name,
- (uint8) NOT_FIXED_DEC,
- 0/*zerofill*/, def.unsigned_flag());
+ Field_float(addr.ptr(), len,
+ addr.null_ptr(), addr.null_bit(),
+ Field::NONE, &name,
+ dec,
+ 0/*zerofill*/, def.unsigned_flag());
}
diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index 0d76b57d6c0..f17c6b23c93 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -14225,17 +14225,19 @@ show_param:
}
| ALL SLAVES STATUS_SYM
{
- if (!(Lex->m_sql_cmd= new (thd->mem_root)
- Sql_cmd_show_slave_status(true)))
+ LEX *lex= Lex;
+ lex->sql_command= SQLCOM_SHOW_SLAVE_STAT;
+ lex->mi.show_all_slaves= 1;
+ if (prepare_schema_table(thd, lex, 0, SCH_SLAVE_STATUS))
MYSQL_YYABORT;
- Lex->sql_command = SQLCOM_SHOW_SLAVE_STAT;
}
| SLAVE optional_connection_name STATUS_SYM optional_for_channel
{
- if (!(Lex->m_sql_cmd= new (thd->mem_root)
- Sql_cmd_show_slave_status()))
+ LEX *lex= Lex;
+ lex->sql_command= SQLCOM_SHOW_SLAVE_STAT;
+ lex->mi.show_all_slaves= 0;
+ if (prepare_schema_table(thd, lex, 0, SCH_SLAVE_STATUS))
MYSQL_YYABORT;
- Lex->sql_command = SQLCOM_SHOW_SLAVE_STAT;
}
| CREATE PROCEDURE_SYM sp_name
{
diff --git a/sql/table.h b/sql/table.h
index bd5c11d9430..5648edd2667 100644
--- a/sql/table.h
+++ b/sql/table.h
@@ -1646,6 +1646,16 @@ struct TABLE
bool fill_item_list(List<Item> *item_list) const;
void reset_item_list(List<Item> *item_list, uint skip) const;
void clear_column_bitmaps(void);
+ inline void clear_null_bits()
+ {
+ if (s->null_bytes)
+ bzero(null_flags, s->null_bytes);
+ }
+ inline void set_null_bits()
+ {
+ if (s->null_bytes)
+ bfill(null_flags, s->null_bytes, 255);
+ }
void prepare_for_position(void);
MY_BITMAP *prepare_for_keyread(uint index, MY_BITMAP *map);
MY_BITMAP *prepare_for_keyread(uint index)
@@ -3494,8 +3504,7 @@ inline void mark_as_null_row(TABLE *table)
{
table->null_row=1;
table->status|=STATUS_NULL_ROW;
- if (table->s->null_bytes)
- bfill(table->null_flags,table->s->null_bytes,255);
+ table->set_null_bits();
}
/*
--
2.39.2
1
0
[PATCH] MDEV-15393 part 2. Fixes to 'gtid_slave_pos duplicate key errors after mysqldump restore' MDEV-34615 mysqldump wipes off pre-existing gtid slave state
by Kristian Nielsen 17 Jul '24
by Kristian Nielsen 17 Jul '24
17 Jul '24
From: Andrei <andrei.elkin(a)mariadb.com>
When mysqldump run on mysql system database it generates inserts sql commands
into mysql.gtid_slave_pos. After running the backup script those
inserts did not produce an expected gtid state on slave.
In particular the maximum of mysql.gtid_slave_pos.sub_id did not make
into
rpl_global_gtid_slave_state.last_sub_id
a memory object that the table persists.
And that was regardless of whether --gtid option in or out.
Later when the backup recipient server starts as slave in *non-gtid*
mode this desychronization may lead to a duplicate key error.
This effect is corrected for --gtid mode mysqldump/mariadb-dump only
as the following.
The fixes ensure the insert block of the dump script is followed
with a "summing-up" SET @global.gtid_slave_pos assignment.
To address MDEV-34615 the assignment makes sure a possibly
pre-existing gtid state (e.g reflecting another domain) remains as a
sub-state upon the dump installation.
A new test provides a how-to-reproduce mode as well.
For the implemenation part, note a deferred print-out of SET-gtid_slave_pos
and associated comments is prefered over relocating of the entire blocks
if (opt_master,slave_data && do_show_master,slave_status) ...
because of compatiblity concern. Namely an error inside
do_show_*()
is handled in the new code the same way, as early, as before.
---
client/mysqldump.c | 53 +++++++++++++++++++++++++++++++++++-----------
1 file changed, 41 insertions(+), 12 deletions(-)
diff --git a/client/mysqldump.c b/client/mysqldump.c
index 1c9d92d6e09..0be890e2528 100644
--- a/client/mysqldump.c
+++ b/client/mysqldump.c
@@ -5985,8 +5985,13 @@ static int dump_selected_tables(char *db, char **table_names, int tables)
} /* dump_selected_tables */
+const char fmt_gtid_pos[] = "%sSET GLOBAL gtid_slave_pos=concat('%s', "
+ "if(length(@@global.gtid_slave_pos) = 0, '', ','), "
+ "@@global.gtid_slave_pos);\n";
+
static int do_show_master_status(MYSQL *mysql_con, int consistent_binlog_pos,
- int have_mariadb_gtid, int use_gtid)
+ int have_mariadb_gtid, int use_gtid,
+ char *set_gtid_pos)
{
MYSQL_ROW row;
MYSQL_RES *UNINIT_VAR(master);
@@ -6054,8 +6059,11 @@ static int do_show_master_status(MYSQL *mysql_con, int consistent_binlog_pos,
fprintf(md_result_file,
"%sCHANGE MASTER TO MASTER_USE_GTID=slave_pos;\n",
comment_prefix);
- fprintf(md_result_file,
- "%sSET GLOBAL gtid_slave_pos='%s';\n",
+ /*
+ Defer print of SET gtid_slave_pos until after its placeholder
+ table is guaranteed to have been dumped.
+ */
+ sprintf(set_gtid_pos, fmt_gtid_pos,
(!use_gtid ? "-- " : comment_prefix), gtid_pos);
}
@@ -6140,8 +6148,8 @@ static int add_slave_statements(void)
return(0);
}
-static int do_show_slave_status(MYSQL *mysql_con, int use_gtid,
- int have_mariadb_gtid)
+static int do_show_slave_status(MYSQL *mysql_con, int have_mariadb_gtid,
+ int use_gtid, char* set_gtid_pos)
{
MYSQL_RES *UNINIT_VAR(slave);
MYSQL_ROW row;
@@ -6181,10 +6189,8 @@ static int do_show_slave_status(MYSQL *mysql_con, int use_gtid,
mysql_free_result(slave);
return 1;
}
- print_comment(md_result_file, 0,
- "-- GTID position to start replication:\n");
- fprintf(md_result_file, "%sSET GLOBAL gtid_slave_pos='%s';\n",
- gtid_comment_prefix, gtid_pos);
+ /* similarly to do_show_master_status */
+ sprintf(set_gtid_pos, fmt_gtid_pos, gtid_comment_prefix, gtid_pos);
}
if (use_gtid)
print_comment(md_result_file, 0,
@@ -6905,6 +6911,19 @@ static void dynstr_realloc_checked(DYNAMIC_STRING *str, ulong additional_size)
die(EX_MYSQLERR, DYNAMIC_STR_ERROR_MSG);
}
+/**
+ Print earlier prepared SET to @@global.gtid_slave_pos.
+
+ @param set_gtid_pos[in] formatted sql set statement
+**/
+static void do_print_set_gtid_slave_pos(const char *set_gtid_pos)
+{
+ DBUG_ASSERT(opt_master_data || opt_slave_data);
+ if (opt_slave_data)
+ print_comment(md_result_file, 0,
+ "-- GTID position to start replication:\n");
+ fprintf(md_result_file, "%s", set_gtid_pos);
+}
int main(int argc, char **argv)
{
@@ -6913,6 +6932,11 @@ int main(int argc, char **argv)
int exit_code;
int consistent_binlog_pos= 0;
int have_mariadb_gtid= 0;
+ /*
+ to hold SET @@global.gtid_slave_pos which is deferred to print
+ until the function epilogue.
+ */
+ char set_gtid_pos[3 + sizeof(fmt_gtid_pos) + MAX_GTID_LENGTH]= {0};
MY_INIT(argv[0]);
sf_leaking_memory=1; /* don't report memory leaks on early exits */
@@ -7016,10 +7040,12 @@ int main(int argc, char **argv)
goto err;
if (opt_master_data && do_show_master_status(mysql, consistent_binlog_pos,
- have_mariadb_gtid, opt_use_gtid))
+ have_mariadb_gtid,
+ opt_use_gtid, set_gtid_pos))
goto err;
- if (opt_slave_data && do_show_slave_status(mysql, opt_use_gtid,
- have_mariadb_gtid))
+ if (opt_slave_data && do_show_slave_status(mysql,
+ have_mariadb_gtid,
+ opt_use_gtid, set_gtid_pos))
goto err;
if (opt_single_transaction && do_unlock_tables(mysql)) /* unlock but no commit! */
goto err;
@@ -7087,6 +7113,9 @@ int main(int argc, char **argv)
if (opt_system & OPT_SYSTEM_TIMEZONES)
dump_all_timezones();
+ if ((opt_master_data || opt_slave_data) && set_gtid_pos[0])
+ do_print_set_gtid_slave_pos(set_gtid_pos);
+
/* add 'START SLAVE' to end of dump */
if (opt_slave_apply && add_slave_statements())
goto err;
--
2.39.2
1
0
From: Monty <monty(a)mariadb.org>
PURGE BINARY LOGS did not always purge binary logs. This commit fixes
some of the issues and adds notifications if a binary log cannot be
purged.
User visible changes:
- 'PURGE BINARY LOG TO log_name' and 'PURGE BINARY LOGS BEFORE date'
worked differently. 'TO' ignored 'slave_connections_needed_for_purge'
while 'BEFORE' did not. Now both versions ignores the
'slave_connections_needed_for_purge variable'.
- 'PURGE BINARY LOG..' commands now returns 'note' if a binary log cannot
be deleted like
Note 1375 Binary log 'master-bin.000004' is not purged because it is
the current active binlog
- Automatic binary log purges, based on date or size, will write a
note to the error log if a binary log matching the size or date
cannot yet be deleted.
- If 'slave_connections_needed_for_purge' is set from a config or
command line, it is set to 0 if Galera is enabled and 1 otherwise
(old default). This ensures that automatic binary log purge works
with Galera as before the addition of
'slave_connections_needed_for_purge'.
If the variable is changed to 0, a warning will be printed to the error
log.
Code changes:
- Added THD argument to several purge_logs related functions that needed
THD.
- Added 'interactive' options to purge_logs functions. This allowed
me to remove testing of sql_command == SQLCOM_PURGE.
- Changed purge_logs_before_date() to first check if log is applicable
before calling can_purge_logs(). This ensures we do not get a
notification for logs that does not match the remove criteria.
- MYSQL_BIN_LOG::can_purge_log() will write notifications to the user
or error log if a log cannot yet be removed.
- log_in_use() will return reason why a binary log cannot be removed.
- Moved checking of binlog_format for Galera to be after Galera is
initialized (The old check never worked). If Galera is enabled
we now change the binlog_format to ROW, with a warning, instead of
aborting the server. If this change happens, the binlog_format variable
will be marked with AUTO or FORCED, for information_schema.system_variables,
and a warning will be printed to the error log.
- Print also a warning if FLASHBACK changes the binlog_format to ROW.
Before this was done silently.
---
mysql-test/main/mysqld--help.result | 1 +
.../binlog_flush_binlogs_delete_domain.result | 3 +
mysql-test/suite/binlog/r/binlog_index.result | 1 +
.../suite/binlog/r/binlog_xa_recover.result | 2 +
.../t/binlog_flush_binlogs_delete_domain.test | 2 +
.../binlog_encryption/binlog_index.result | 1 +
.../binlog_xa_recover.result | 2 +
.../oracle/r/binlog_ptr_mysqlbinlog.result | 1 +
.../oracle/t/binlog_ptr_mysqlbinlog.test | 2 +
mysql-test/suite/galera/r/basic.result | 6 ++
mysql-test/suite/galera/t/basic.test | 3 +
mysql-test/suite/rpl/r/purge_binlog.result | 52 ++++++++++
mysql-test/suite/rpl/r/rpl_rotate_logs.result | 2 +
mysql-test/suite/rpl/t/purge_binlog.test | 54 +++++++++++
.../r/sysvars_server_notembedded.result | 2 +-
sql/log.cc | 95 ++++++++++++++-----
sql/log.h | 8 +-
sql/mysqld.cc | 48 +++++++---
sql/mysqld.h | 1 +
sql/set_var.cc | 3 +-
sql/set_var.h | 3 +-
sql/sql_repl.cc | 26 +++--
sql/sql_repl.h | 2 +-
sql/sys_vars.cc | 21 +++-
sql/sys_vars.h | 17 ++++
25 files changed, 303 insertions(+), 55 deletions(-)
create mode 100644 mysql-test/suite/rpl/r/purge_binlog.result
create mode 100644 mysql-test/suite/rpl/t/purge_binlog.test
create mode 100644 sql/sys_vars.h
diff --git a/mysql-test/main/mysqld--help.result b/mysql-test/main/mysqld--help.result
index ee75f586970..026f135ebd5 100644
--- a/mysql-test/main/mysqld--help.result
+++ b/mysql-test/main/mysqld--help.result
@@ -1308,6 +1308,7 @@ The following specify which files/extra groups are read (specified before remain
Minimum number of connected slaves required for automatic
binary log purge with max_binlog_total_size,
binlog_expire_logs_seconds or binlog_expire_logs_days.
+ Default is 0 when Galera is enabled and 1 otherwise.
--slave-ddl-exec-mode=name
How replication events should be executed. Legal values
are STRICT and IDEMPOTENT (default). In IDEMPOTENT mode,
diff --git a/mysql-test/suite/binlog/r/binlog_flush_binlogs_delete_domain.result b/mysql-test/suite/binlog/r/binlog_flush_binlogs_delete_domain.result
index 1c11191802f..f967a367898 100644
--- a/mysql-test/suite/binlog/r/binlog_flush_binlogs_delete_domain.result
+++ b/mysql-test/suite/binlog/r/binlog_flush_binlogs_delete_domain.result
@@ -49,6 +49,9 @@ ERROR HY000: Could not delete gtid domain. Reason: binlog files may contain gtid
MDEV-31140: Missing error from DELETE_DOMAIN_ID when gtid_binlog_state partially matches GTID_LIST.
FLUSH BINARY LOGS;
PURGE BINARY LOGS TO 'master-bin.000005';
+SHOW BINARY LOGS;
+Log_name File_size
+master-bin.000005 #
SET @@SESSION.gtid_domain_id=8;
SET @@SESSION.server_id=10*8 + 1;
INSERT INTO t SELECT 1+MAX(a) FROM t;
diff --git a/mysql-test/suite/binlog/r/binlog_index.result b/mysql-test/suite/binlog/r/binlog_index.result
index 9dfda71f9a7..2d2363a7fec 100644
--- a/mysql-test/suite/binlog/r/binlog_index.result
+++ b/mysql-test/suite/binlog/r/binlog_index.result
@@ -30,6 +30,7 @@ flush logs;
flush logs;
*** must be a warning master-bin.000001 was not found ***
Warnings:
+Note 1375 Binary log 'master-bin.000004' is not purged because it is the current active binlog
Warning 1612 Being purged log master-bin.000001 was not found
*** must show one record, of the active binlog, left in the index file after PURGE ***
show binary logs;
diff --git a/mysql-test/suite/binlog/r/binlog_xa_recover.result b/mysql-test/suite/binlog/r/binlog_xa_recover.result
index f5060fd5160..da8dff2dfd1 100644
--- a/mysql-test/suite/binlog/r/binlog_xa_recover.result
+++ b/mysql-test/suite/binlog/r/binlog_xa_recover.result
@@ -89,6 +89,8 @@ master-bin.000006 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
master-bin.000006 # Gtid_list # # [#-#-#]
master-bin.000006 # Binlog_checkpoint # # master-bin.000004
PURGE BINARY LOGS TO "master-bin.000006";
+Warnings:
+Note 1375 Binary log 'master-bin.000004' is not purged because it is in use by an active XID transaction
show binary logs;
Log_name File_size
master-bin.000004 #
diff --git a/mysql-test/suite/binlog/t/binlog_flush_binlogs_delete_domain.test b/mysql-test/suite/binlog/t/binlog_flush_binlogs_delete_domain.test
index 1643ecff72d..4a974c642c0 100644
--- a/mysql-test/suite/binlog/t/binlog_flush_binlogs_delete_domain.test
+++ b/mysql-test/suite/binlog/t/binlog_flush_binlogs_delete_domain.test
@@ -91,6 +91,8 @@ while ($domain_cnt)
FLUSH BINARY LOGS;
--let $purge_to_binlog= query_get_value(SHOW MASTER STATUS, File, 1)
--eval PURGE BINARY LOGS TO '$purge_to_binlog'
+--replace_column 2 #
+SHOW BINARY LOGS;
--eval SET @@SESSION.gtid_domain_id=$err_domain_id
--eval SET @@SESSION.server_id=10*$err_domain_id + $err_server_id
eval INSERT INTO t SELECT 1+MAX(a) FROM t;
diff --git a/mysql-test/suite/binlog_encryption/binlog_index.result b/mysql-test/suite/binlog_encryption/binlog_index.result
index 9dfda71f9a7..2d2363a7fec 100644
--- a/mysql-test/suite/binlog_encryption/binlog_index.result
+++ b/mysql-test/suite/binlog_encryption/binlog_index.result
@@ -30,6 +30,7 @@ flush logs;
flush logs;
*** must be a warning master-bin.000001 was not found ***
Warnings:
+Note 1375 Binary log 'master-bin.000004' is not purged because it is the current active binlog
Warning 1612 Being purged log master-bin.000001 was not found
*** must show one record, of the active binlog, left in the index file after PURGE ***
show binary logs;
diff --git a/mysql-test/suite/binlog_encryption/binlog_xa_recover.result b/mysql-test/suite/binlog_encryption/binlog_xa_recover.result
index 3e4ed42cf7c..7aacd0e034a 100644
--- a/mysql-test/suite/binlog_encryption/binlog_xa_recover.result
+++ b/mysql-test/suite/binlog_encryption/binlog_xa_recover.result
@@ -93,6 +93,8 @@ master-bin.000006 # Start_encryption # #
master-bin.000006 # Gtid_list # # [#-#-#]
master-bin.000006 # Binlog_checkpoint # # master-bin.000004
PURGE BINARY LOGS TO "master-bin.000006";
+Warnings:
+Note 1375 Binary log 'master-bin.000004' is not purged because it is in use by an active XID transaction
show binary logs;
Log_name File_size
master-bin.000004 #
diff --git a/mysql-test/suite/compat/oracle/r/binlog_ptr_mysqlbinlog.result b/mysql-test/suite/compat/oracle/r/binlog_ptr_mysqlbinlog.result
index 0656a685976..543ec5336d8 100644
--- a/mysql-test/suite/compat/oracle/r/binlog_ptr_mysqlbinlog.result
+++ b/mysql-test/suite/compat/oracle/r/binlog_ptr_mysqlbinlog.result
@@ -1,3 +1,4 @@
+call mtr.add_suppression("Binlog_format changed to.*flashback");
SET @@SQL_MODE = 'ORACLE';
##########################################################################
# Test verifies Gtid_log_event/Xid_log_event specific print #
diff --git a/mysql-test/suite/compat/oracle/t/binlog_ptr_mysqlbinlog.test b/mysql-test/suite/compat/oracle/t/binlog_ptr_mysqlbinlog.test
index bda32af5d4e..165f2cc0afe 100644
--- a/mysql-test/suite/compat/oracle/t/binlog_ptr_mysqlbinlog.test
+++ b/mysql-test/suite/compat/oracle/t/binlog_ptr_mysqlbinlog.test
@@ -18,6 +18,8 @@
--source include/have_log_bin.inc
--source include/have_innodb.inc
+call mtr.add_suppression("Binlog_format changed to.*flashback");
+
let $MYSQLD_DATADIR= `select @@datadir`;
SET @@SQL_MODE = 'ORACLE';
diff --git a/mysql-test/suite/galera/r/basic.result b/mysql-test/suite/galera/r/basic.result
index 10f180e7a94..7b4cbd93c7b 100644
--- a/mysql-test/suite/galera/r/basic.result
+++ b/mysql-test/suite/galera/r/basic.result
@@ -1,5 +1,11 @@
connection node_2;
connection node_1;
+select @@slave_connections_needed_for_purge;
+@@slave_connections_needed_for_purge
+0
+select VARIABLE_NAME, GLOBAL_VALUE, GLOBAL_VALUE_ORIGIN from information_schema.system_variables where variable_name="slave_connections_needed_for_purge";
+VARIABLE_NAME GLOBAL_VALUE GLOBAL_VALUE_ORIGIN
+SLAVE_CONNECTIONS_NEEDED_FOR_PURGE 0 AUTO
USE test;
CREATE TABLE t1(c1 INT PRIMARY KEY) ENGINE=INNODB;
INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
diff --git a/mysql-test/suite/galera/t/basic.test b/mysql-test/suite/galera/t/basic.test
index 8fc6eee3b3b..a70ee962bc0 100644
--- a/mysql-test/suite/galera/t/basic.test
+++ b/mysql-test/suite/galera/t/basic.test
@@ -1,6 +1,9 @@
--source include/galera_cluster.inc
--source include/have_innodb.inc
+select @@slave_connections_needed_for_purge;
+select VARIABLE_NAME, GLOBAL_VALUE, GLOBAL_VALUE_ORIGIN from information_schema.system_variables where variable_name="slave_connections_needed_for_purge";
+
USE test;
CREATE TABLE t1(c1 INT PRIMARY KEY) ENGINE=INNODB;
INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
diff --git a/mysql-test/suite/rpl/r/purge_binlog.result b/mysql-test/suite/rpl/r/purge_binlog.result
new file mode 100644
index 00000000000..6be060e5774
--- /dev/null
+++ b/mysql-test/suite/rpl/r/purge_binlog.result
@@ -0,0 +1,52 @@
+include/master-slave.inc
+[connection master]
+#
+# MDEV-34504 PURGE BINARY LOGS not working anymore
+#
+select @@slave_connections_needed_for_purge;
+@@slave_connections_needed_for_purge
+0
+set @old_dbug= @@global.debug_dbug;
+create table t1 (a int, b varchar(32768));
+insert into t1 values(1,repeat("a",32768));
+connection slave;
+select a from t1;
+a
+1
+set @@global.debug_dbug= "+d,pause_before_io_read_event";
+connection master;
+insert into t1 values(2,repeat("b",32768));
+insert into t1 values(3,repeat("c",32768));
+connection slave;
+set debug_sync='now wait_for io_thread_at_read_event';
+select a from t1;
+a
+1
+connection master;
+FLUSH BINARY LOGS;
+SHOW BINARY LOGS;
+Log_name File_size
+master-bin.000001 #
+master-bin.000002 #
+PURGE BINARY LOGS TO 'master-bin.000002';
+Warnings:
+Note 1375 Binary log XXX is not purged because it is in use by a slave thread
+SHOW BINARY LOGS;
+Log_name File_size
+master-bin.000001 #
+master-bin.000002 #
+connection slave;
+set @@global.debug_dbug= @old_dbug;
+set debug_sync='now signal io_thread_continue_read_event';
+connection master;
+connection slave;
+select count(*) from t1;
+count(*)
+103
+connection master;
+PURGE BINARY LOGS TO 'master-bin.000002';
+SHOW BINARY LOGS;
+Log_name File_size
+master-bin.000002 #
+drop table t1;
+include/rpl_end.inc
diff --git a/mysql-test/suite/rpl/r/rpl_rotate_logs.result b/mysql-test/suite/rpl/r/rpl_rotate_logs.result
index 4b7c1642a11..8e8f0026c93 100644
--- a/mysql-test/suite/rpl/r/rpl_rotate_logs.result
+++ b/mysql-test/suite/rpl/r/rpl_rotate_logs.result
@@ -70,6 +70,8 @@ master-bin.000002 #
master-bin.000003 #
SELECT @time_for_purge:=DATE_ADD('tmpval', INTERVAL 1 SECOND);
purge master logs before (@time_for_purge);
+Warnings:
+Note 1375 Binary log 'master-bin.000003' is not purged because it is the current active binlog
show binary logs;
Log_name File_size
master-bin.000003 #
diff --git a/mysql-test/suite/rpl/t/purge_binlog.test b/mysql-test/suite/rpl/t/purge_binlog.test
new file mode 100644
index 00000000000..5c804ca22bb
--- /dev/null
+++ b/mysql-test/suite/rpl/t/purge_binlog.test
@@ -0,0 +1,54 @@
+--source include/have_debug.inc
+--source include/have_debug_sync.inc
+--source include/master-slave.inc
+--source include/have_binlog_format_row.inc
+
+--echo #
+--echo # MDEV-34504 PURGE BINARY LOGS not working anymore
+--echo #
+
+select @@slave_connections_needed_for_purge;
+set @old_dbug= @@global.debug_dbug;
+
+create table t1 (a int, b varchar(32768));
+insert into t1 values(1,repeat("a",32768));
+--sync_slave_with_master
+select a from t1;
+set @@global.debug_dbug= "+d,pause_before_io_read_event";
+--connection master
+insert into t1 values(2,repeat("b",32768));
+insert into t1 values(3,repeat("c",32768));
+--connection slave
+set debug_sync='now wait_for io_thread_at_read_event';
+select a from t1;
+--connection master
+--disable_query_log
+let $i=100;
+while ($i)
+{
+--eval insert into t1 values($i+4,repeat(char(64+$i),32768));
+--dec $i
+}
+--enable_query_log
+
+FLUSH BINARY LOGS;
+--replace_column 2 #
+SHOW BINARY LOGS;
+--let $purge_to_binlog= query_get_value(SHOW MASTER STATUS, File, 1)
+--replace_regex /Binary log.*is not/Binary log XXX is not/
+--eval PURGE BINARY LOGS TO '$purge_to_binlog'
+--replace_column 2 #
+SHOW BINARY LOGS;
+--connection slave
+set @@global.debug_dbug= @old_dbug;
+set debug_sync='now signal io_thread_continue_read_event';
+--connection master
+--sync_slave_with_master
+select count(*) from t1;
+--connection master
+--eval PURGE BINARY LOGS TO '$purge_to_binlog'
+--replace_column 2 #
+SHOW BINARY LOGS;
+drop table t1;
+
+--source include/rpl_end.inc
diff --git a/mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result b/mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result
index 2740319dd05..0b2feb675b4 100644
--- a/mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result
+++ b/mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result
@@ -3995,7 +3995,7 @@ COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME SLAVE_CONNECTIONS_NEEDED_FOR_PURGE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
-VARIABLE_COMMENT Minimum number of connected slaves required for automatic binary log purge with max_binlog_total_size, binlog_expire_logs_seconds or binlog_expire_logs_days.
+VARIABLE_COMMENT Minimum number of connected slaves required for automatic binary log purge with max_binlog_total_size, binlog_expire_logs_seconds or binlog_expire_logs_days. Default is 0 when Galera is enabled and 1 otherwise.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
diff --git a/sql/log.cc b/sql/log.cc
index c27c4f3353b..1384fb0b3e7 100644
--- a/sql/log.cc
+++ b/sql/log.cc
@@ -4791,8 +4791,8 @@ int MYSQL_BIN_LOG::purge_first_log(Relay_log_info* rli, bool included)
DBUG_EXECUTE_IF("crash_before_purge_logs", DBUG_SUICIDE(););
- rli->relay_log.purge_logs(to_purge_if_included, included,
- 0, 0, &log_space_reclaimed);
+ rli->relay_log.purge_logs(current_thd, to_purge_if_included, included,
+ 0, 0, 0, &log_space_reclaimed);
mysql_mutex_lock(&rli->log_space_lock);
rli->log_space_total-= log_space_reclaimed;
@@ -4859,16 +4859,17 @@ int MYSQL_BIN_LOG::update_log_index(LOG_INFO* log_info, bool need_update_threads
mysql_file_stat() or mysql_file_delete()
*/
-int MYSQL_BIN_LOG::purge_logs(const char *to_log,
+int MYSQL_BIN_LOG::purge_logs(THD *thd,
+ const char *to_log,
bool included,
bool need_mutex,
- bool need_update_threads,
+ bool need_update_threads,
+ bool interactive,
ulonglong *reclaimed_space)
{
int error= 0;
bool exit_loop= 0;
LOG_INFO log_info;
- THD *thd= current_thd;
DBUG_ENTER("purge_logs");
DBUG_PRINT("info",("to_log= %s",to_log));
@@ -4894,7 +4895,7 @@ int MYSQL_BIN_LOG::purge_logs(const char *to_log,
if (unlikely((error=find_log_pos(&log_info, NullS, 0 /*no mutex*/))))
goto err;
while ((strcmp(to_log,log_info.log_file_name) || (exit_loop=included)) &&
- can_purge_log(log_info.log_file_name))
+ can_purge_log(thd, log_info.log_file_name, interactive))
{
if (unlikely((error= register_purge_index_entry(log_info.log_file_name))))
{
@@ -4902,7 +4903,6 @@ int MYSQL_BIN_LOG::purge_logs(const char *to_log,
log_info.log_file_name);
goto err;
}
-
if (find_next_log(&log_info, 0) || exit_loop)
break;
}
@@ -5243,13 +5243,13 @@ int MYSQL_BIN_LOG::purge_index_entry(THD *thd, ulonglong *reclaimed_space,
mysql_file_stat() or mysql_file_delete()
*/
-int MYSQL_BIN_LOG::purge_logs_before_date(time_t purge_time)
+int MYSQL_BIN_LOG::purge_logs_before_date(THD *thd, time_t purge_time,
+ bool interactive)
{
int error;
char to_log[FN_REFLEN];
LOG_INFO log_info;
MY_STAT stat_area;
- THD *thd= current_thd;
DBUG_ENTER("purge_logs_before_date");
mysql_mutex_lock(&LOCK_index);
@@ -5258,7 +5258,7 @@ int MYSQL_BIN_LOG::purge_logs_before_date(time_t purge_time)
if (unlikely((error=find_log_pos(&log_info, NullS, 0 /*no mutex*/))))
goto err;
- while (can_purge_log(log_info.log_file_name))
+ for (;;)
{
if (!mysql_file_stat(m_key_file_log,
log_info.log_file_name, &stat_area, MYF(0)))
@@ -5296,7 +5296,8 @@ int MYSQL_BIN_LOG::purge_logs_before_date(time_t purge_time)
}
else
{
- if (stat_area.st_mtime >= purge_time)
+ if (stat_area.st_mtime >= purge_time ||
+ !can_purge_log(thd, log_info.log_file_name, interactive))
break;
strmake_buf(to_log, log_info.log_file_name);
}
@@ -5307,7 +5308,7 @@ int MYSQL_BIN_LOG::purge_logs_before_date(time_t purge_time)
if (to_log[0])
{
ulonglong reclaimed_space= 0;
- error= purge_logs(to_log, 1, 0, 1, &reclaimed_space);
+ error= purge_logs(thd, to_log, 1, 0, 1, interactive, &reclaimed_space);
binlog_space_total-= reclaimed_space;
}
@@ -5338,6 +5339,7 @@ int MYSQL_BIN_LOG::real_purge_logs_by_size(ulonglong binlog_pos)
MY_STAT stat_area;
char to_log[FN_REFLEN];
ulonglong found_space= 0;
+ THD *thd= current_thd;
DBUG_ENTER("real_purge_logs_by_size");
mysql_mutex_lock(&LOCK_index);
@@ -5351,7 +5353,7 @@ int MYSQL_BIN_LOG::real_purge_logs_by_size(ulonglong binlog_pos)
goto err;
to_log[0] = 0;
- while (can_purge_log(log_info.log_file_name))
+ while (can_purge_log(thd, log_info.log_file_name, 0))
{
if (!mysql_file_stat(m_key_file_log, log_info.log_file_name, &stat_area,
MYF(0)))
@@ -5394,8 +5396,9 @@ int MYSQL_BIN_LOG::real_purge_logs_by_size(ulonglong binlog_pos)
if (found_space)
{
ulonglong reclaimed_space= 0;
- purge_logs(to_log, true, false /*need_lock_index=false*/,
+ purge_logs(thd, to_log, true, false /*need_lock_index=false*/,
true /*need_update_threads=true*/,
+ false /* not interactive */,
&reclaimed_space);
DBUG_ASSERT(reclaimed_space == found_space);
binlog_space_total-= reclaimed_space;
@@ -5414,6 +5417,10 @@ int MYSQL_BIN_LOG::real_purge_logs_by_size(ulonglong binlog_pos)
}
/*
+ @param THD thd, may be null at startup
+ @param log_file_name_arg Name of log file to check
+ @param interactive True if called by a PURGE BINLOG command.
+
The following variables are here to allows us to quickly check if
the can_purge_log(log_file_name_arg) name will fail in the
'log_in_use' call.
@@ -5428,18 +5435,23 @@ int MYSQL_BIN_LOG::real_purge_logs_by_size(ulonglong binlog_pos)
static bool waiting_for_slave_to_change_binlog= 0;
static ulonglong purge_sending_new_binlog_file= 0;
static char purge_binlog_name[FN_REFLEN];
+static bool purge_warning_given= 0;
bool
-MYSQL_BIN_LOG::can_purge_log(const char *log_file_name_arg)
+MYSQL_BIN_LOG::can_purge_log(THD *thd, const char *log_file_name_arg,
+ bool interactive)
{
- THD *thd= current_thd; // May be NULL at startup
- bool res;
+ int res;
+ const char *reason;
if (is_active(log_file_name_arg) ||
(!is_relay_log && waiting_for_slave_to_change_binlog &&
purge_sending_new_binlog_file == sending_new_binlog_file &&
!strcmp(log_file_name_arg, purge_binlog_name)))
- return false;
+ {
+ reason= "it is the current active binlog";
+ goto error;
+ }
DBUG_ASSERT(!is_relay_log || binlog_xid_count_list.is_empty());
if (!is_relay_log)
@@ -5455,7 +5467,10 @@ MYSQL_BIN_LOG::can_purge_log(const char *log_file_name_arg)
}
mysql_mutex_unlock(&LOCK_xid_list);
if (b)
- return false;
+ {
+ reason= "it is in use by an active XID transaction";
+ goto error;
+ }
}
if (!is_relay_log)
@@ -5464,8 +5479,7 @@ MYSQL_BIN_LOG::can_purge_log(const char *log_file_name_arg)
purge_sending_new_binlog_file= sending_new_binlog_file;
}
if ((res= log_in_use(log_file_name_arg,
- (is_relay_log ||
- (thd && thd->lex->sql_command == SQLCOM_PURGE)) ?
+ (is_relay_log || interactive) ?
0 : slave_connections_needed_for_purge)))
{
if (!is_relay_log)
@@ -5473,9 +5487,39 @@ MYSQL_BIN_LOG::can_purge_log(const char *log_file_name_arg)
waiting_for_slave_to_change_binlog= 1;
strmake(purge_binlog_name, log_file_name_arg,
sizeof(purge_binlog_name)-1);
+ if (res == 1)
+ reason= "it is in use by a slave thread";
+ else
+ reason= "less than 'slave_connections_needed_for_purge' slaves has "
+ "processed it";
+ goto error;
}
}
- return !res;
+ /* We can purge this file, reset for next failure */
+ purge_warning_given= 0;
+ return 1;
+
+error:
+ if (!is_relay_log && (interactive || !purge_warning_given))
+ {
+ /* Remove directory (to keep things shorter and compatible */
+ log_file_name_arg+= dirname_length(log_file_name_arg);
+
+ /* purge_warning_given is reset after next sucessful purge */
+ purge_warning_given= 1;
+ if (interactive)
+ {
+ my_printf_error(ER_BINLOG_PURGE_PROHIBITED,
+ "Binary log '%s' is not purged because %s",
+ MYF(ME_NOTE), log_file_name_arg, reason);
+ }
+ else
+ {
+ sql_print_information("Binary log '%s' is not purged because %s",
+ log_file_name_arg, reason);
+ }
+ }
+ return 0;
}
#endif /* HAVE_REPLICATION */
@@ -7611,16 +7655,17 @@ void MYSQL_BIN_LOG::purge(bool all)
{
mysql_mutex_assert_not_owner(&LOCK_log);
#ifdef HAVE_REPLICATION
+ THD *thd= current_thd;
if (binlog_expire_logs_seconds)
{
- DEBUG_SYNC(current_thd, "at_purge_logs_before_date");
+ DEBUG_SYNC(thd, "at_purge_logs_before_date");
time_t purge_time= my_time(0) - binlog_expire_logs_seconds;
DBUG_EXECUTE_IF("expire_logs_always", { purge_time = my_time(0); });
if (purge_time >= 0)
{
- purge_logs_before_date(purge_time);
+ purge_logs_before_date(thd, purge_time, 0);
}
- DEBUG_SYNC(current_thd, "after_purge_logs_before_date");
+ DEBUG_SYNC(thd, "after_purge_logs_before_date");
}
if (all && binlog_space_limit)
{
diff --git a/sql/log.h b/sql/log.h
index 23513c75ac5..c8a8eb72b37 100644
--- a/sql/log.h
+++ b/sql/log.h
@@ -1035,7 +1035,7 @@ class MYSQL_BIN_LOG: public TC_LOG, private Event_log
void mark_xid_done(ulong cookie, bool write_checkpoint);
void make_log_name(char* buf, const char* log_ident);
bool is_active(const char* log_file_name);
- bool can_purge_log(const char *log_file_name);
+ bool can_purge_log(THD *thd, const char *log_file_name, bool interactive);
int update_log_index(LOG_INFO* linfo, bool need_update_threads);
int rotate(bool force_rotate, bool* check_purge);
void checkpoint_and_purge(ulong binlog_id);
@@ -1054,10 +1054,10 @@ class MYSQL_BIN_LOG: public TC_LOG, private Event_log
@retval other Failure
*/
bool flush_and_sync(bool *synced);
- int purge_logs(const char *to_log, bool included,
- bool need_mutex, bool need_update_threads,
+ int purge_logs(THD *thd, const char *to_log, bool included,
+ bool need_mutex, bool need_update_threads, bool interactive,
ulonglong *decrease_log_space);
- int purge_logs_before_date(time_t purge_time);
+ int purge_logs_before_date(THD *thd, time_t purge_time, bool interactive);
int purge_first_log(Relay_log_info* rli, bool included);
int count_binlog_space();
void count_binlog_space_with_mutex()
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 2b12001de9e..604eaadcc92 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -52,6 +52,7 @@
#include "sql_manager.h" // stop_handle_manager, start_handle_manager
#include "sql_expression_cache.h" // subquery_cache_miss, subquery_cache_hit
#include "sys_vars_shared.h"
+#include "sys_vars.h"
#include "ddl_log.h"
#include "optimizer_defaults.h"
@@ -519,6 +520,8 @@ uint default_password_lifetime;
my_bool disconnect_on_expired_password;
bool max_user_connections_checking=0;
+bool slave_connections_needed_for_purge_option_used= 0;
+
/**
Limit of the total number of prepared statements in the server.
Is necessary to protect the server against out-of-memory attacks.
@@ -5847,7 +5850,28 @@ int mysqld_main(int argc, char **argv)
#ifdef WITH_WSREP
wsrep_set_wsrep_on(nullptr);
if (WSREP_ON && wsrep_check_opts()) unireg_abort(1);
-#endif
+
+ if (!opt_bootstrap && WSREP_PROVIDER_EXISTS && WSREP_ON)
+ {
+ if (global_system_variables.binlog_format != BINLOG_FORMAT_ROW)
+ {
+ sql_print_warning("Binlog_format changed to \"ROW\" because of Galera");
+ global_system_variables.binlog_format= BINLOG_FORMAT_ROW;
+ mark_binlog_format_used(binlog_format_used);
+ }
+ binlog_format_used= 1;
+ if (!slave_connections_needed_for_purge_option_used)
+ {
+ slave_connections_needed_for_purge=
+ internal_slave_connections_needed_for_purge= 0;
+ mark_slave_connections_needed_for_purge_as_auto();
+ sql_print_information(
+ "slave_connections_needed_for_purge changed to 0 because "
+ "of Galera. Change it to 1 or higher if this Galera node "
+ "is also Master in a normal replication setup");
+ }
+ }
+#endif /* WITH_WSREP */
#ifdef _WIN32
/*
@@ -8219,7 +8243,9 @@ mysqld_get_one_option(const struct my_option *opt, const char *argument,
((enum_slave_parallel_mode)opt_slave_parallel_mode);
break;
}
-
+ case (int) OPT_SLAVE_CONNECTIONS_NEEDED_FOR_PURGE:
+ slave_connections_needed_for_purge_option_used= 1;
+ break;
case (int)OPT_BINLOG_IGNORE_DB:
{
binlog_filter->add_ignore_db(argument);
@@ -8714,18 +8740,14 @@ static int get_options(int *argc_ptr, char ***argv_ptr)
opt_bin_log= opt_bin_log_used= 1;
/* Force format to row */
+ if (global_system_variables.binlog_format != BINLOG_FORMAT_ROW)
+ {
+ sql_print_warning("Binlog_format changed to \"ROW\" because of "
+ "flashback");
+ global_system_variables.binlog_format= BINLOG_FORMAT_ROW;
+ mark_binlog_format_used(binlog_format_used);
+ }
binlog_format_used= 1;
- global_system_variables.binlog_format= BINLOG_FORMAT_ROW;
- }
-
- if (!opt_bootstrap && WSREP_PROVIDER_EXISTS && WSREP_ON &&
- global_system_variables.binlog_format != BINLOG_FORMAT_ROW)
- {
-
- WSREP_ERROR ("Only binlog_format = 'ROW' is currently supported. "
- "Configured value: '%s'. Please adjust your configuration.",
- binlog_format_names[global_system_variables.binlog_format]);
- return 1;
}
// Synchronize @@global.autocommit on --autocommit
diff --git a/sql/mysqld.h b/sql/mysqld.h
index 33492ad7286..61313079f3f 100644
--- a/sql/mysqld.h
+++ b/sql/mysqld.h
@@ -852,6 +852,7 @@ enum options_mysqld
OPT_SILENT,
OPT_SKIP_HOST_CACHE,
OPT_SLAVE_PARALLEL_MODE,
+ OPT_SLAVE_CONNECTIONS_NEEDED_FOR_PURGE,
OPT_SSL_CA,
OPT_SSL_CAPATH,
OPT_SSL_CERT,
diff --git a/sql/set_var.cc b/sql/set_var.cc
index 61528b45de6..de537174825 100644
--- a/sql/set_var.cc
+++ b/sql/set_var.cc
@@ -1119,7 +1119,8 @@ int fill_sysvars(THD *thd, TABLE_LIST *tables, COND *cond)
{ STRING_WITH_LEN("AUTO") },
{ STRING_WITH_LEN("SQL") },
{ STRING_WITH_LEN("COMPILE-TIME") },
- { STRING_WITH_LEN("ENVIRONMENT") }
+ { STRING_WITH_LEN("ENVIRONMENT") },
+ { STRING_WITH_LEN("FORCED") },
};
const LEX_CSTRING *origin= origins + var->value_origin;
fields[3]->store(origin->str, origin->length, scs);
diff --git a/sql/set_var.h b/sql/set_var.h
index aed4955ef62..94ddef6a127 100644
--- a/sql/set_var.h
+++ b/sql/set_var.h
@@ -66,7 +66,8 @@ class sys_var: protected Value_source // for double_from_string_with_check
READONLY=1024, ALLOCATED=2048, PARSE_EARLY=4096,
NO_SET_STATEMENT=8192, AUTO_SET=16384};
enum { NO_GETOPT=-1, GETOPT_ONLY_HELP=-2 };
- enum where { CONFIG, COMMAND_LINE, AUTO, SQL, COMPILE_TIME, ENV };
+ /* If where is changed, change also GLOBAL_VALUE_ORIGIN in set_var.h */
+ enum where { CONFIG, COMMAND_LINE, AUTO, SQL, COMPILE_TIME, ENV, FORCED };
/**
Enumeration type to indicate for a system variable whether
diff --git a/sql/sql_repl.cc b/sql/sql_repl.cc
index 895ff090da6..22bc1befa6e 100644
--- a/sql/sql_repl.cc
+++ b/sql/sql_repl.cc
@@ -612,14 +612,26 @@ static my_bool log_in_use_callback(THD *thd, st_log_in_use *arg)
}
-bool log_in_use(const char* log_name, uint min_connected)
+/*
+ Check if a log is in use.
+
+ @return 0 Not used
+ @return 1 A slave is reading from the log
+ @return 2 There are less than 'min_connected' slaves that
+ has recived the log.
+*/
+
+int log_in_use(const char* log_name, uint min_connected)
{
st_log_in_use arg;
arg.log_name= log_name;
arg.connected_slaves= 0;
- return ((server_threads.iterate(log_in_use_callback, &arg) ||
- arg.connected_slaves < min_connected));
+ if (server_threads.iterate(log_in_use_callback, &arg))
+ return 1;
+ if (arg.connected_slaves < min_connected)
+ return 2;
+ return 0;
}
@@ -659,8 +671,8 @@ bool purge_master_logs(THD* thd, const char* to_log)
mysql_bin_log.make_log_name(search_file_name, to_log);
return purge_error_message(thd,
- mysql_bin_log.purge_logs(search_file_name, 0, 1,
- 1, NULL));
+ mysql_bin_log.purge_logs(thd, search_file_name,
+ 0, 1, 1, 1, NULL));
}
@@ -683,7 +695,9 @@ bool purge_master_logs_before_date(THD* thd, time_t purge_time)
return 0;
}
return purge_error_message(thd,
- mysql_bin_log.purge_logs_before_date(purge_time));
+ mysql_bin_log.purge_logs_before_date(thd,
+ purge_time,
+ 1));
}
void set_read_error(binlog_send_info *info, int error)
diff --git a/sql/sql_repl.h b/sql/sql_repl.h
index 51b6a599d5f..c03384aa5a3 100644
--- a/sql/sql_repl.h
+++ b/sql/sql_repl.h
@@ -38,7 +38,7 @@ int reset_master(THD* thd, rpl_gtid *init_state, uint32 init_state_len,
ulong next_log_number);
bool purge_master_logs(THD* thd, const char* to_log);
bool purge_master_logs_before_date(THD* thd, time_t purge_time);
-bool log_in_use(const char* log_name, uint min_connections);
+int log_in_use(const char* log_name, uint min_connections);
void adjust_linfo_offsets(my_off_t purge_offset);
void show_binlogs_get_fields(THD *thd, List<Item> *field_list);
bool show_binlogs(THD* thd);
diff --git a/sql/sys_vars.cc b/sql/sys_vars.cc
index a2705990736..35a29c29ef8 100644
--- a/sql/sys_vars.cc
+++ b/sql/sys_vars.cc
@@ -35,6 +35,7 @@
#include "sql_priv.h"
#include "sql_class.h" // set_var.h: THD
#include "sys_vars.inl"
+#include "sys_vars.h"
#include "my_sys.h"
#include "events.h"
@@ -704,6 +705,13 @@ Sys_binlog_format(
NO_MUTEX_GUARD, NOT_IN_BINLOG, ON_CHECK(binlog_format_check),
ON_UPDATE(fix_binlog_format_after_update));
+
+void mark_binlog_format_used(bool forced)
+{
+ Sys_binlog_format.value_origin= forced ? sys_var::FORCED : sys_var::AUTO;
+}
+
+
static bool binlog_direct_check(sys_var *self, THD *thd, set_var *var)
{
if (var->type == OPT_GLOBAL)
@@ -1265,7 +1273,7 @@ static bool update_binlog_space_limit(sys_var *, THD *,
mysql_bin_log.count_binlog_space();
/* Inform can_purge_log() that it should do a recheck of log_in_use() */
sending_new_binlog_file++;
- mysql_bin_log.unlock_index();
+ mysql_bin_log.unlock_index();
mysql_bin_log.purge(1);
return 0;
}
@@ -1274,6 +1282,7 @@ static bool update_binlog_space_limit(sys_var *, THD *,
return 0;
}
+
static Sys_var_on_access_global<Sys_var_ulonglong,
PRIV_SET_SYSTEM_GLOBAL_VAR_MAX_BINLOG_CACHE_SIZE>
Sys_max_binlog_total_size(
@@ -1303,13 +1312,19 @@ Sys_slave_connections_needed_for_purge(
"slave_connections_needed_for_purge",
"Minimum number of connected slaves required for automatic binary "
"log purge with max_binlog_total_size, binlog_expire_logs_seconds "
- "or binlog_expire_logs_days.",
+ "or binlog_expire_logs_days. Default is 0 when Galera is enabled and 1 "
+ "otherwise.",
GLOBAL_VAR(internal_slave_connections_needed_for_purge),
- CMD_LINE(REQUIRED_ARG),
+ CMD_LINE(REQUIRED_ARG, OPT_SLAVE_CONNECTIONS_NEEDED_FOR_PURGE),
VALID_RANGE(0, UINT_MAX), DEFAULT(1), BLOCK_SIZE(1),
NO_MUTEX_GUARD, NOT_IN_BINLOG, ON_CHECK(0),
ON_UPDATE(update_binlog_space_limit));
+void mark_slave_connections_needed_for_purge_as_auto()
+{
+ Sys_slave_connections_needed_for_purge.value_origin= sys_var::AUTO;
+}
+
static Sys_var_mybool Sys_flush(
"flush", "Flush MyISAM tables to disk between SQL commands",
GLOBAL_VAR(myisam_flush),
diff --git a/sql/sys_vars.h b/sql/sys_vars.h
new file mode 100644
index 00000000000..8f4eac38cd0
--- /dev/null
+++ b/sql/sys_vars.h
@@ -0,0 +1,17 @@
+/* Copyright (c) 2024, MariaDB Corporation.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
+
+extern void mark_binlog_format_used(bool forced);
+extern void mark_slave_connections_needed_for_purge_as_auto();
--
2.30.2
1
0
From: poempeng <poempeng(a)tencent.com>
During the commit stage of a large transaction, it may cost too much
time to write binlog cache and block all subsequent transactions for
a long time. One possible solution of this issue is to write the binlog
of the large transaction to a temporary file and then rename it to the
next new binlog file.
We need to reserve some space for format description event, gtid list
event, binlog checkpoint event and gtid event. After writing the binlog
cache, we lock LOCK_log and write the aforementioned events to the
reserved space. The default size of reserved space is 10MB, any unusable
space is filled with a skip event(Ignorable_log_event). If any error
occurs before acquiring LOCK_log, we fallback to the original commit
path. However, if an error occurs after acquiring LOCK_log, we abort
the server.
New variable: non_blocking_binlog_threshold, if the size of binlog cache
exceeds this value, try using non-blocking binlog.
Limitations:
Binlog encryption, wsrep transaction, stmt cache, incident event and
slave thread are not supported.
---
mysql-test/main/mysqld--help.result | 5 +
.../binlog/r/non_blocking_binlog_basic.result | 42 +++
.../binlog/r/non_blocking_binlog_error.result | 36 ++
.../binlog/t/non_blocking_binlog_basic.test | 31 ++
.../binlog/t/non_blocking_binlog_error.test | 49 +++
.../perfschema/r/dml_setup_instruments.result | 2 +-
.../rpl/r/rpl_non_blocking_binlog.result | 22 ++
.../suite/rpl/t/rpl_non_blocking_binlog.test | 31 ++
.../r/sysvars_server_notembedded.result | 10 +
sql/log.cc | 354 +++++++++++++++++-
sql/log.h | 30 +-
sql/mysqld.cc | 9 +-
sql/mysqld.h | 4 +-
sql/sys_vars.cc | 8 +
14 files changed, 615 insertions(+), 18 deletions(-)
create mode 100644 mysql-test/suite/binlog/r/non_blocking_binlog_basic.result
create mode 100644 mysql-test/suite/binlog/r/non_blocking_binlog_error.result
create mode 100644 mysql-test/suite/binlog/t/non_blocking_binlog_basic.test
create mode 100644 mysql-test/suite/binlog/t/non_blocking_binlog_error.test
create mode 100644 mysql-test/suite/rpl/r/rpl_non_blocking_binlog.result
create mode 100644 mysql-test/suite/rpl/t/rpl_non_blocking_binlog.test
diff --git a/mysql-test/main/mysqld--help.result b/mysql-test/main/mysqld--help.result
index 431c37c25ed..d652eacadb0 100644
--- a/mysql-test/main/mysqld--help.result
+++ b/mysql-test/main/mysqld--help.result
@@ -735,6 +735,10 @@ The following specify which files/extra groups are read (specified before remain
--net-write-timeout=#
Number of seconds to wait for a block to be written to a
connection before aborting the write
+ --non-blocking-binlog-threshold[=#]
+ If the binlog size of a transaction exceeds this value,
+ we write it to a new temporary file and rename it to the
+ next binlog file.
--note-verbosity=name
Verbosity level for note-warnings given to the user. See
also @@sql_notes.. Any combination of: basic,
@@ -1797,6 +1801,7 @@ net-buffer-length 16384
net-read-timeout 30
net-retry-count 10
net-write-timeout 60
+non-blocking-binlog-threshold 18446744073709551615
note-verbosity basic,explain
old FALSE
old-mode UTF8_IS_UTF8MB3
diff --git a/mysql-test/suite/binlog/r/non_blocking_binlog_basic.result b/mysql-test/suite/binlog/r/non_blocking_binlog_basic.result
new file mode 100644
index 00000000000..dfbf6721f89
--- /dev/null
+++ b/mysql-test/suite/binlog/r/non_blocking_binlog_basic.result
@@ -0,0 +1,42 @@
+set global non_blocking_binlog_threshold=1;
+Warnings:
+Warning 1292 Truncated incorrect non_blocking_binlog_threshold value: '1'
+show variables like 'non_blocking_binlog_threshold';
+Variable_name Value
+non_blocking_binlog_threshold 268435456
+set global non_blocking_binlog_threshold=256*1024*1024;
+show variables like 'non_blocking_binlog_threshold';
+Variable_name Value
+non_blocking_binlog_threshold 268435456
+set global non_blocking_binlog_threshold=default;
+show variables like 'non_blocking_binlog_threshold';
+Variable_name Value
+non_blocking_binlog_threshold 18446744073709551615
+reset master;
+create table t1(id int, c1 int) engine=innodb;
+insert into t1 values(1,1);
+set debug_dbug='+d,non_blocking_binlog_ignore_cache_size';
+update t1 set c1=2;
+set debug_dbug='-d,non_blocking_binlog_ignore_cache_size';
+insert into t1 values(3,3);
+show master status;
+File Position Binlog_Do_DB Binlog_Ignore_DB
+master-bin.000002 #
+show binlog events in 'master-bin.000002';
+Log_name Pos Event_type Server_id End_log_pos Info
+master-bin.000002 # Format_desc # # #
+master-bin.000002 # Gtid_list # # #
+master-bin.000002 # Binlog_checkpoint # # #
+master-bin.000002 # Gtid # # #
+master-bin.000002 # Ignorable log event # # #
+master-bin.000002 # Annotate_rows # # #
+master-bin.000002 # Table_map # # #
+master-bin.000002 # Update_rows_v1 # # #
+master-bin.000002 # Xid # # #
+master-bin.000002 # Gtid # # #
+master-bin.000002 # Annotate_rows # # #
+master-bin.000002 # Table_map # # #
+master-bin.000002 # Write_rows_v1 # # #
+master-bin.000002 # Xid # # #
+drop table t1;
+include/assert_grep.inc [write non-blocking binlog succeed should be logged]
diff --git a/mysql-test/suite/binlog/r/non_blocking_binlog_error.result b/mysql-test/suite/binlog/r/non_blocking_binlog_error.result
new file mode 100644
index 00000000000..536c80e04b4
--- /dev/null
+++ b/mysql-test/suite/binlog/r/non_blocking_binlog_error.result
@@ -0,0 +1,36 @@
+call mtr.add_suppression(".*");
+reset master;
+create table t1(id int, c1 int) engine=innodb;
+insert into t1 values(1,1);
+set debug_dbug='+d,non_blocking_binlog_ignore_cache_size';
+set debug_dbug='+d,non_blocking_binlog_open_file_failed';
+update t1 set c1=2;
+set debug_dbug='-d,non_blocking_binlog_ignore_cache_size';
+set debug_dbug='-d,non_blocking_binlog_open_file_failed';
+insert into t1 values(3,3);
+show master status;
+File Position Binlog_Do_DB Binlog_Ignore_DB
+master-bin.000001 #
+include/assert_grep.inc [Open file failed should be logged]
+set debug_dbug='+d,non_blocking_binlog_ignore_cache_size';
+set debug_dbug='+d,non_blocking_binlog_write_cache_failed';
+update t1 set c1=3;
+set debug_dbug='-d,non_blocking_binlog_ignore_cache_size';
+set debug_dbug='-d,non_blocking_binlog_write_cache_failed';
+insert into t1 values(4,4);
+show master status;
+File Position Binlog_Do_DB Binlog_Ignore_DB
+master-bin.000001 #
+set debug_dbug='+d,non_blocking_binlog_ignore_cache_size';
+set debug_dbug='+d,non_blocking_binlog_write_gtid_failed';
+update t1 set c1=5;
+ERROR HY000: Lost connection to server during query
+show master status;
+File Position Binlog_Do_DB Binlog_Ignore_DB
+master-bin.000002 #
+select * from t1;
+id c1
+1 3
+3 3
+4 4
+drop table t1;
diff --git a/mysql-test/suite/binlog/t/non_blocking_binlog_basic.test b/mysql-test/suite/binlog/t/non_blocking_binlog_basic.test
new file mode 100644
index 00000000000..2964f921698
--- /dev/null
+++ b/mysql-test/suite/binlog/t/non_blocking_binlog_basic.test
@@ -0,0 +1,31 @@
+--source include/have_debug.inc
+--source include/have_innodb.inc
+--source include/have_binlog_format_row.inc
+--source include/not_embedded.inc
+
+set global non_blocking_binlog_threshold=1;
+show variables like 'non_blocking_binlog_threshold';
+set global non_blocking_binlog_threshold=256*1024*1024;
+show variables like 'non_blocking_binlog_threshold';
+set global non_blocking_binlog_threshold=default;
+show variables like 'non_blocking_binlog_threshold';
+
+reset master;
+create table t1(id int, c1 int) engine=innodb;
+insert into t1 values(1,1);
+set debug_dbug='+d,non_blocking_binlog_ignore_cache_size';
+update t1 set c1=2;
+set debug_dbug='-d,non_blocking_binlog_ignore_cache_size';
+insert into t1 values(3,3);
+--replace_column 2 #
+show master status;
+--replace_column 2 # 4 # 5 # 6 #
+show binlog events in 'master-bin.000002';
+drop table t1;
+
+--let $assert_count = 1
+--let $assert_file = $MYSQLTEST_VARDIR/log/mysqld.1.err
+--let $assert_text = write non-blocking binlog succeed should be logged
+--let $assert_select = write non-blocking binlog succeed
+--let $assert_only_after = CURRENT_TEST
+--source include/assert_grep.inc
diff --git a/mysql-test/suite/binlog/t/non_blocking_binlog_error.test b/mysql-test/suite/binlog/t/non_blocking_binlog_error.test
new file mode 100644
index 00000000000..6699006bffb
--- /dev/null
+++ b/mysql-test/suite/binlog/t/non_blocking_binlog_error.test
@@ -0,0 +1,49 @@
+--source include/have_debug.inc
+--source include/have_innodb.inc
+--source include/have_binlog_format_row.inc
+--source include/not_valgrind.inc
+--source include/not_embedded.inc
+
+call mtr.add_suppression(".*");
+
+reset master;
+create table t1(id int, c1 int) engine=innodb;
+insert into t1 values(1,1);
+set debug_dbug='+d,non_blocking_binlog_ignore_cache_size';
+set debug_dbug='+d,non_blocking_binlog_open_file_failed';
+update t1 set c1=2;
+set debug_dbug='-d,non_blocking_binlog_ignore_cache_size';
+set debug_dbug='-d,non_blocking_binlog_open_file_failed';
+insert into t1 values(3,3);
+--replace_column 2 #
+show master status;
+
+--let $assert_count = 1
+--let $assert_file = $MYSQLTEST_VARDIR/log/mysqld.1.err
+--let $assert_text = Open file failed should be logged
+--let $assert_select = Open file .* failed
+--let $assert_only_after = CURRENT_TEST
+--source include/assert_grep.inc
+
+set debug_dbug='+d,non_blocking_binlog_ignore_cache_size';
+set debug_dbug='+d,non_blocking_binlog_write_cache_failed';
+update t1 set c1=3;
+set debug_dbug='-d,non_blocking_binlog_ignore_cache_size';
+set debug_dbug='-d,non_blocking_binlog_write_cache_failed';
+insert into t1 values(4,4);
+--replace_column 2 #
+show master status;
+
+set debug_dbug='+d,non_blocking_binlog_ignore_cache_size';
+set debug_dbug='+d,non_blocking_binlog_write_gtid_failed';
+--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+--error 2013
+update t1 set c1=5;
+--enable_reconnect
+--source include/wait_until_connected_again.inc
+--replace_column 2 #
+show master status;
+# c1 should not be 5
+select * from t1;
+
+drop table t1;
diff --git a/mysql-test/suite/perfschema/r/dml_setup_instruments.result b/mysql-test/suite/perfschema/r/dml_setup_instruments.result
index ff000a09312..95d8bfb882a 100644
--- a/mysql-test/suite/perfschema/r/dml_setup_instruments.result
+++ b/mysql-test/suite/perfschema/r/dml_setup_instruments.result
@@ -21,6 +21,7 @@ where name like 'Wait/Synch/Rwlock/sql/%'
'wait/synch/rwlock/sql/LOCK_named_pipe_full_access_group')
order by name limit 10;
NAME ENABLED TIMED
+wait/synch/rwlock/sql/binlog_checksum_rwlock YES YES
wait/synch/rwlock/sql/LOCK_all_status_vars YES YES
wait/synch/rwlock/sql/LOCK_dbnames YES YES
wait/synch/rwlock/sql/LOCK_dboptions YES YES
@@ -30,7 +31,6 @@ wait/synch/rwlock/sql/LOCK_SEQUENCE YES YES
wait/synch/rwlock/sql/LOCK_ssl_refresh YES YES
wait/synch/rwlock/sql/LOCK_system_variables_hash YES YES
wait/synch/rwlock/sql/LOCK_sys_init_connect YES YES
-wait/synch/rwlock/sql/LOCK_sys_init_slave YES YES
select * from performance_schema.setup_instruments
where name like 'Wait/Synch/Cond/sql/%'
and name not in (
diff --git a/mysql-test/suite/rpl/r/rpl_non_blocking_binlog.result b/mysql-test/suite/rpl/r/rpl_non_blocking_binlog.result
new file mode 100644
index 00000000000..c130848bfe9
--- /dev/null
+++ b/mysql-test/suite/rpl/r/rpl_non_blocking_binlog.result
@@ -0,0 +1,22 @@
+include/master-slave.inc
+[connection master]
+connection master;
+create table t1(id int, c1 int) engine=innodb;
+insert into t1 values(1,1);
+set debug_dbug='+d,non_blocking_binlog_ignore_cache_size';
+update t1 set c1=2;
+set debug_dbug='-d,non_blocking_binlog_ignore_cache_size';
+include/assert_grep.inc [write non-blocking binlog succeed should be logged]
+insert into t1 values(3,3);
+checksum table t1;
+Table Checksum
+test.t1 4217795292
+include/sync_slave_sql_with_master.inc
+connection slave;
+checksum table t1;
+Table Checksum
+test.t1 4217795292
+connection master;
+drop table t1;
+include/sync_slave_sql_with_master.inc
+include/rpl_end.inc
diff --git a/mysql-test/suite/rpl/t/rpl_non_blocking_binlog.test b/mysql-test/suite/rpl/t/rpl_non_blocking_binlog.test
new file mode 100644
index 00000000000..558ca63c5ec
--- /dev/null
+++ b/mysql-test/suite/rpl/t/rpl_non_blocking_binlog.test
@@ -0,0 +1,31 @@
+--source include/have_debug.inc
+--source include/have_innodb.inc
+--source include/master-slave.inc
+--source include/not_embedded.inc
+
+connection master;
+create table t1(id int, c1 int) engine=innodb;
+insert into t1 values(1,1);
+set debug_dbug='+d,non_blocking_binlog_ignore_cache_size';
+update t1 set c1=2;
+set debug_dbug='-d,non_blocking_binlog_ignore_cache_size';
+
+--let $assert_count = 1
+--let $assert_file = $MYSQLTEST_VARDIR/log/mysqld.1.err
+--let $assert_text = write non-blocking binlog succeed should be logged
+--let $assert_select = write non-blocking binlog succeed
+--let $assert_only_after = CURRENT_TEST
+--source include/assert_grep.inc
+
+insert into t1 values(3,3);
+checksum table t1;
+
+--source include/sync_slave_sql_with_master.inc
+connection slave;
+checksum table t1;
+
+connection master;
+drop table t1;
+--source include/sync_slave_sql_with_master.inc
+
+--source include/rpl_end.inc
diff --git a/mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result b/mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result
index 2740319dd05..0ad02a33089 100644
--- a/mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result
+++ b/mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result
@@ -2512,6 +2512,16 @@ NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
+VARIABLE_NAME NON_BLOCKING_BINLOG_THRESHOLD
+VARIABLE_SCOPE GLOBAL
+VARIABLE_TYPE BIGINT UNSIGNED
+VARIABLE_COMMENT If the binlog size of a transaction exceeds this value, we write it to a new temporary file and rename it to the next binlog file.
+NUMERIC_MIN_VALUE 268435456
+NUMERIC_MAX_VALUE 18446744073709551615
+NUMERIC_BLOCK_SIZE 1
+ENUM_VALUE_LIST NULL
+READ_ONLY NO
+COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME NOTE_VERBOSITY
VARIABLE_SCOPE SESSION
VARIABLE_TYPE SET
diff --git a/sql/log.cc b/sql/log.cc
index 460cefea47b..9de1c6118cd 100644
--- a/sql/log.cc
+++ b/sql/log.cc
@@ -74,6 +74,9 @@
#include <utility> // pair
#endif
+#include <atomic>
+#include <chrono>
+
/* max size of the log message */
#define MAX_LOG_BUFFER_SIZE 1024
#define MAX_TIME_SIZE 32
@@ -3727,7 +3730,10 @@ bool MYSQL_BIN_LOG::open(const char *log_name,
enum cache_type io_cache_type_arg,
ulong max_size_arg,
bool null_created_arg,
- bool need_mutex)
+ bool need_mutex,
+ const char *file_to_rename,
+ my_off_t file_size,
+ group_commit_entry *entry)
{
xid_count_per_binlog *new_xid_list_entry= NULL, *b;
DBUG_ENTER("MYSQL_BIN_LOG::open");
@@ -3792,6 +3798,18 @@ bool MYSQL_BIN_LOG::open(const char *log_name,
write_error= 0;
+ if (file_to_rename)
+ {
+ DBUG_ASSERT(!is_relay_log && entry);
+ if (mysql_file_rename(PSI_NOT_INSTRUMENTED, file_to_rename, log_file_name,
+ MY_WME | MY_NABP | MY_WAIT_IF_FULL) != 0)
+ {
+ sql_print_error("rename from '%s' to '%s' failed!", file_to_rename,
+ log_file_name);
+ DBUG_RETURN(1);
+ }
+ }
+
/* open the main log file */
if (MYSQL_LOG::open(
#ifdef HAVE_PSI_INTERFACE
@@ -3816,7 +3834,7 @@ bool MYSQL_BIN_LOG::open(const char *log_name,
{
bool write_file_name_to_index_file=0;
- if (!my_b_filelength(&log_file))
+ if (!my_b_filelength(&log_file) || file_to_rename)
{
/*
The binary log file was empty (probably newly created)
@@ -3993,6 +4011,12 @@ bool MYSQL_BIN_LOG::open(const char *log_name,
goto err;
bytes_written+= description_event_for_queue->data_written;
}
+ if (file_to_rename)
+ {
+ if (write_gtid_and_skip_event(file_size, entry))
+ goto err;
+ }
+
if (flush_io_cache(&log_file) ||
mysql_file_sync(log_file.file, MYF(MY_WME)))
goto err;
@@ -6826,7 +6850,6 @@ MYSQL_BIN_LOG::write_gtid_event(THD *thd, bool standalone,
thd->variables.server_id= global_system_variables.server_id;
}
#endif
-
if (write_event(>id_event))
DBUG_RETURN(true);
status_var_add(thd->status_var.binlog_bytes_written, gtid_event.data_written);
@@ -7849,11 +7872,18 @@ int Event_log::write_cache_raw(THD *thd, IO_CACHE *cache)
events prior to fill in the binlog cache.
*/
-int Event_log::write_cache(THD *thd, binlog_cache_data *cache_data)
+int Event_log::write_cache(THD *thd, binlog_cache_data *cache_data,
+ IO_CACHE *f)
{
DBUG_ENTER("Event_log::write_cache");
IO_CACHE *cache= &cache_data->cache_log;
- mysql_mutex_assert_owner(&LOCK_log);
+
+ IO_CACHE *out_file= f;
+ if (likely(f == nullptr))
+ {
+ mysql_mutex_assert_owner(&LOCK_log);
+ out_file= get_log_file();
+ }
/*
If possible, just copy the cache over byte-by-byte with pre-computed
@@ -7863,7 +7893,7 @@ int Event_log::write_cache(THD *thd, binlog_cache_data *cache_data)
likely(!crypto.scheme) &&
likely(!opt_binlog_legacy_event_pos))
{
- int res= my_b_copy_all_to_cache(cache, &log_file);
+ int res= my_b_copy_all_to_cache(cache, out_file);
status_var_add(thd->status_var.binlog_bytes_written, my_b_tell(cache));
DBUG_RETURN(res ? ER_ERROR_ON_WRITE : 0);
}
@@ -7873,7 +7903,7 @@ int Event_log::write_cache(THD *thd, binlog_cache_data *cache_data)
/* Amount of remaining bytes in the IO_CACHE read buffer. */
size_t log_file_pos;
uchar header_buf[LOG_EVENT_HEADER_LEN];
- Log_event_writer writer(get_log_file(), 0,
+ Log_event_writer writer(out_file, 0,
(enum_binlog_checksum_alg)binlog_checksum_options,
&crypto);
uint checksum_len= writer.checksum_len;
@@ -7904,7 +7934,7 @@ int Event_log::write_cache(THD *thd, binlog_cache_data *cache_data)
split.
*/
- log_file_pos= (size_t)my_b_tell(get_log_file());
+ log_file_pos= (size_t)my_b_tell(out_file);
for (;;)
{
/*
@@ -8194,6 +8224,7 @@ MYSQL_BIN_LOG::write_transaction_to_binlog(THD *thd,
ha_info= all ? thd->transaction->all.ha_list : thd->transaction->stmt.ha_list;
entry.ro_1pc= is_ro_1pc;
entry.end_event= end_ev;
+ entry.non_blocking_log= false;
auto has_xid= entry.end_event->get_type_code() == XID_EVENT;
for (; has_xid && !entry.need_unlog && ha_info; ha_info= ha_info->next())
@@ -8581,7 +8612,23 @@ MYSQL_BIN_LOG::queue_for_group_commit(group_commit_entry *orig_entry)
bool
MYSQL_BIN_LOG::write_transaction_to_binlog_events(group_commit_entry *entry)
{
- int is_leader= queue_for_group_commit(entry);
+ int is_leader;
+ if (unlikely(entry->cache_mngr->trx_cache.get_byte_position() >=
+ non_blocking_binlog_threshold) ||
+ DBUG_IF("non_blocking_binlog_ignore_cache_size"))
+ {
+ if (!can_use_non_blocking_binlog(entry) ||
+ write_non_blocking_binlog(entry))
+ goto original_commit_path;
+ /* thread using non-blocking binlog is treated as a single group */
+ is_leader= 1;
+ entry->non_blocking_log= true;
+ entry->next= nullptr;
+ goto group_commit_leader;
+ }
+original_commit_path:
+
+ is_leader= queue_for_group_commit(entry);
#ifdef WITH_WSREP
/* commit order was released in queue_for_group_commit() call,
here we check if wsrep_commit_ordered() failed or if we are leader */
@@ -8616,7 +8663,10 @@ MYSQL_BIN_LOG::write_transaction_to_binlog_events(group_commit_entry *entry)
if (is_leader < 0)
return true; /* Error */
else if (is_leader)
+ {
+group_commit_leader:
trx_group_commit_leader(entry);
+ }
else if (!entry->queued_by_other)
{
DEBUG_SYNC(entry->thd, "after_semisync_queue");
@@ -8748,6 +8798,12 @@ MYSQL_BIN_LOG::trx_group_commit_leader(group_commit_entry *leader)
("commit_before_get_LOCK_log SIGNAL waiting WAIT_FOR cont TIMEOUT 1")));
);
#endif
+ if (unlikely(leader->non_blocking_log))
+ {
+ mysql_mutex_assert_owner(&LOCK_log);
+ current= leader;
+ goto after_fetching_group;
+ }
/*
Lock the LOCK_log(), and once we get it, collect any additional writes
that queued up while we were waiting.
@@ -8766,6 +8822,7 @@ MYSQL_BIN_LOG::trx_group_commit_leader(group_commit_entry *leader)
current= group_commit_queue;
group_commit_queue= NULL;
mysql_mutex_unlock(&LOCK_prepare_ordered);
+after_fetching_group:
binlog_id= current_binlog_id;
/* As the queue is in reverse order of entering, reverse it. */
@@ -8824,9 +8881,12 @@ MYSQL_BIN_LOG::trx_group_commit_leader(group_commit_entry *leader)
!cache_mngr->trx_cache.empty() ||
current->thd->transaction->xid_state.is_explicit_XA());
- if (unlikely((current->error= write_transaction_or_stmt(current,
- commit_id))))
- current->commit_errno= errno;
+ if (likely(leader->non_blocking_log == false))
+ {
+ if (unlikely((current->error=
+ write_transaction_or_stmt(current, commit_id))))
+ current->commit_errno= errno;
+ }
strmake_buf(cache_mngr->last_commit_pos_file, log_file_name);
commit_offset= my_b_write_tell(&log_file);
@@ -12459,6 +12519,7 @@ mysql_bin_log_commit_pos(THD *thd, ulonglong *out_pos, const char **out_file)
}
#endif /* INNODB_COMPATIBILITY_HOOKS */
+mysql_rwlock_t binlog_checksum_rwlock;
static void
binlog_checksum_update(MYSQL_THD thd, struct st_mysql_sys_var *var,
@@ -12468,6 +12529,7 @@ binlog_checksum_update(MYSQL_THD thd, struct st_mysql_sys_var *var,
bool check_purge= false;
ulong UNINIT_VAR(prev_binlog_id);
+ mysql_rwlock_wrlock(&binlog_checksum_rwlock);
mysql_mutex_lock(mysql_bin_log.get_log_lock());
if(mysql_bin_log.is_open())
{
@@ -12484,6 +12546,7 @@ binlog_checksum_update(MYSQL_THD thd, struct st_mysql_sys_var *var,
DBUG_ASSERT(binlog_checksum_options == value);
mysql_bin_log.checksum_alg_reset= BINLOG_CHECKSUM_ALG_UNDEF;
mysql_mutex_unlock(mysql_bin_log.get_log_lock());
+ mysql_rwlock_unlock(&binlog_checksum_rwlock);
if (check_purge)
mysql_bin_log.checkpoint_and_purge(prev_binlog_id);
}
@@ -12781,3 +12844,270 @@ void wsrep_register_binlog_handler(THD *thd, bool trx)
}
#endif /* WITH_WSREP */
+
+bool MYSQL_BIN_LOG::can_use_non_blocking_binlog(group_commit_entry *entry)
+{
+ DBUG_ASSERT(entry->cache_mngr->trx_cache.get_byte_position() >=
+ non_blocking_binlog_threshold ||
+ DBUG_IF("non_blocking_binlog_ignore_cache_size"));
+ THD *thd= entry->thd;
+ if (unlikely(!is_open()) || encrypt_binlog ||
+ !entry->cache_mngr->stmt_cache.empty() ||
+ entry->cache_mngr->trx_cache.has_incident() || thd->slave_thread ||
+ thd->wait_for_commit_ptr)
+ return false;
+#ifdef WITH_WSREP
+ if (wsrep_is_active(thd))
+ return false;
+#endif /* WITH_WSREP */
+ return true;
+}
+
+std::string MYSQL_BIN_LOG::generate_random_file_name()
+{
+ static std::atomic<uint64_t> temp_bin_counter{0};
+ static std::atomic<bool> binlog_dir_inited{false};
+ static std::string binlog_dir;
+ std::string temp_file_name;
+ if (unlikely(!binlog_dir_inited.load(std::memory_order_acquire)))
+ {
+ char dev[FN_REFLEN];
+ size_t dev_length;
+ mysql_mutex_lock(&LOCK_log);
+ if (!binlog_dir_inited.load(std::memory_order_relaxed) && name != nullptr)
+ {
+ /*
+ see MYSQL_BIN_LOG::generate_new_name and fn_format for more
+ information
+ */
+ size_t length= dirname_part(dev, name, &dev_length);
+ if (length == 0)
+ {
+ // log_bin is not set, use mysql_data_home
+ convert_dirname(dev, mysql_data_home, NullS);
+ }
+ unpack_dirname(dev, dev); // Replace ~/.. with dir
+ binlog_dir.assign(dev);
+ binlog_dir_inited.store(true);
+ }
+ mysql_mutex_unlock(&LOCK_log);
+ }
+
+ temp_file_name.reserve(FN_REFLEN);
+ auto now_in_sys= std::chrono::system_clock::now().time_since_epoch();
+ auto now_in_ms=
+ std::chrono::duration_cast<std::chrono::milliseconds>(now_in_sys)
+ .count();
+ auto count= temp_bin_counter.fetch_add(1);
+ temp_file_name.append(binlog_dir);
+ temp_file_name.append("_temp_bin_");
+ temp_file_name.append(std::to_string(now_in_ms));
+ temp_file_name.push_back('_');
+ temp_file_name.append(std::to_string(count));
+
+ return temp_file_name;
+}
+
+void MYSQL_BIN_LOG::generate_skip_event(uchar *buf, size_t buf_len,
+ my_off_t pos, THD *thd)
+{
+ uchar *header= buf;
+ my_time_t now= thd->start_time;
+ int4store(header, now);
+ header[EVENT_TYPE_OFFSET]= IGNORABLE_LOG_EVENT;
+ int4store(header + SERVER_ID_OFFSET, server_id);
+ int4store(header + EVENT_LEN_OFFSET, buf_len);
+ int4store(header + LOG_POS_OFFSET, pos + buf_len);
+ int2store(header + FLAGS_OFFSET, LOG_EVENT_IGNORABLE_F);
+ if (binlog_checksum_options != BINLOG_CHECKSUM_ALG_OFF &&
+ binlog_checksum_options != BINLOG_CHECKSUM_ALG_UNDEF)
+ {
+ ha_checksum crc= my_checksum(0, header, buf_len - BINLOG_CHECKSUM_LEN);
+ int4store(header + buf_len - BINLOG_CHECKSUM_LEN, crc);
+ }
+}
+
+template <typename F= std::function<void()>> class Scoped_guard
+{
+public:
+ Scoped_guard(F f);
+ ~Scoped_guard();
+
+private:
+ F func;
+};
+
+template <typename F> Scoped_guard<F>::Scoped_guard(F f) : func(f) {}
+
+template <typename F> Scoped_guard<F>::~Scoped_guard()
+{
+ if (func)
+ func();
+}
+
+bool MYSQL_BIN_LOG::write_gtid_and_skip_event(my_off_t file_size,
+ group_commit_entry *entry)
+{
+ mysql_mutex_assert_owner(&LOCK_log);
+ DBUG_EXECUTE_IF("non_blocking_binlog_write_gtid_failed", { return true; });
+ uchar *skip_event_buf= nullptr;
+ Scoped_guard<> scoped_guard{[&]() {
+ if (skip_event_buf)
+ my_free(skip_event_buf);
+ }};
+ bool has_xid= entry->end_event->get_type_code() == XID_EVENT;
+ if (write_gtid_event(entry->thd, is_prepared_xa(entry->thd),
+ entry->using_trx_cache, 0, has_xid, entry->ro_1pc))
+ return true;
+ my_off_t skip_event_start= my_b_safe_tell(&log_file);
+ size_t skip_event_len= non_blocking_binlog_reserved_size - skip_event_start;
+ skip_event_buf=
+ (uchar *) my_malloc(PSI_INSTRUMENT_ME, skip_event_len, MYF(MY_ZEROFILL));
+ generate_skip_event(skip_event_buf, skip_event_len, skip_event_start,
+ entry->thd);
+ if (my_b_write(&log_file, skip_event_buf, skip_event_len) != 0)
+ return true;
+ DBUG_ASSERT(non_blocking_binlog_reserved_size == my_b_safe_tell(&log_file));
+ if (flush_io_cache(&log_file) != 0)
+ return true;
+ if (reinit_io_cache(&log_file, io_cache_type, file_size, FALSE, TRUE))
+ return true;
+ return false;
+}
+
+bool MYSQL_BIN_LOG::write_non_blocking_binlog(group_commit_entry *entry)
+{
+ /* generate random file name */
+ std::string temp_file_name(generate_random_file_name());
+ if (temp_file_name.empty())
+ {
+ sql_print_warning("Generate random file name failed!");
+ return true;
+ }
+ if (temp_file_name.size() >= FN_REFLEN)
+ {
+ sql_print_warning("The name of temp file '%s' is too long!",
+ temp_file_name.c_str());
+ return true;
+ }
+ THD *thd= entry->thd;
+ IO_CACHE temp_log_file;
+ File file= -1;
+ bool io_cache_inited= false;
+ bool delete_file= true;
+ bool binlog_checksum_locked= false;
+ // ignore all errors in this function
+ Dummy_error_handler dummy_error_handler;
+ thd->push_internal_handler(&dummy_error_handler);
+ Scoped_guard<> scoped_guard{[&]() {
+ if (io_cache_inited)
+ end_io_cache(&temp_log_file);
+ if (file > 0)
+ {
+ mysql_file_close(file, MYF(MY_WME));
+ if (delete_file)
+ {
+ mysql_file_delete(PSI_NOT_INSTRUMENTED, temp_file_name.c_str(),
+ MYF(MY_WME));
+ }
+ }
+ if (binlog_checksum_locked)
+ mysql_rwlock_unlock(&binlog_checksum_rwlock);
+ thd->pop_internal_handler();
+ }};
+
+ // open temporary file
+ int flags= O_WRONLY | O_CREAT;
+ DBUG_EXECUTE_IF("non_blocking_binlog_open_file_failed",
+ { flags= O_WRONLY; });
+ if ((file= mysql_file_open(PSI_NOT_INSTRUMENTED, temp_file_name.c_str(),
+ flags, MYF(MY_WME))) < 0)
+ {
+ sql_print_error("Open file '%s' failed!", temp_file_name.c_str());
+ return true;
+ }
+ if (init_io_cache(&temp_log_file, file, LOG_BIN_IO_SIZE, WRITE_CACHE,
+ non_blocking_binlog_reserved_size, 0,
+ MYF(MY_WME | MY_NABP | MY_WAIT_IF_FULL)))
+ {
+ sql_print_error("Init io cache for file '%s' failed!",
+ temp_file_name.c_str());
+ return true;
+ }
+ io_cache_inited= true;
+ // prevent any changes to binlog_checksum_options while writing cache
+ mysql_rwlock_rdlock(&binlog_checksum_rwlock);
+ binlog_checksum_locked= true;
+ enum_binlog_checksum_alg alg=
+ (enum_binlog_checksum_alg) binlog_checksum_options;
+ // write cache
+ {
+ binlog_cache_mngr *mngr= entry->cache_mngr;
+ binlog_cache_data *cache_data= mngr->get_binlog_cache_data(TRUE);
+ IO_CACHE *cache= &cache_data->cache_log;
+ if (reinit_io_cache(cache, READ_CACHE, 0, 0, 0))
+ return true;
+ if (write_cache(entry->thd, cache_data, &temp_log_file) ||
+ DBUG_IF("non_blocking_binlog_write_cache_failed"))
+ return true;
+ if (write_event(entry->end_event, alg, nullptr, &temp_log_file))
+ return true;
+ status_var_add(entry->thd->status_var.binlog_bytes_written,
+ entry->end_event->data_written);
+ if (unlikely(cache->error))
+ return true;
+ }
+ if (flush_io_cache(&temp_log_file) != 0)
+ return true;
+ mysql_mutex_lock(&LOCK_log);
+ mysql_mutex_lock(&LOCK_index);
+ // rename temporary file to next binlog file, abort if any error occurs
+ {
+ char new_name[FN_REFLEN], *new_name_ptr, *old_name;
+ File UNINIT_VAR(old_file);
+ // Reuse old name if not binlog and not update log
+ new_name_ptr= name;
+ if (unlikely(generate_new_name(new_name, name, 0)))
+ abort();
+ new_name_ptr= new_name;
+ /*
+ We log the whole file name for log file as the user may decide
+ to change base names at some point.
+ */
+ Rotate_log_event r(new_name + dirname_length(new_name), 0,
+ LOG_EVENT_OFFSET, 0);
+ if (unlikely(write_event(&r, alg)))
+ abort();
+ if (unlikely(flush_io_cache(&log_file) != 0))
+ abort();
+ update_binlog_end_pos();
+ old_name= name;
+ name= 0; // Don't free name
+ old_file= log_file.file;
+ uint close_flag=
+ LOG_CLOSE_TO_BE_OPENED | LOG_CLOSE_INDEX | LOG_CLOSE_DELAYED_CLOSE;
+ /*
+ We need to keep the old binlog file open (and marked as in-use) until
+ the new one is fully created and synced to disk and index. Otherwise we
+ leave a window where if we crash, there is no binlog file marked as
+ crashed for server restart to detect the need for recovery.
+ */
+ close(close_flag);
+ if (unlikely(open_index_file(index_file_name, 0, FALSE)))
+ abort();
+ if (unlikely(open(old_name, new_name_ptr, 0, io_cache_type, max_size, 1,
+ FALSE, temp_file_name.c_str(),
+ my_b_safe_tell(&temp_log_file), entry)))
+ abort();
+ my_free(old_name);
+ delete_file= false;
+ clear_inuse_flag_when_closing(old_file);
+ mysql_file_close(old_file, MYF(MY_WME));
+ }
+ mysql_mutex_unlock(&LOCK_index);
+ // unlock lock_log in trx_group_commit_leader
+#ifndef NDEBUG
+ sql_print_information("write non-blocking binlog succeed!");
+#endif /* ! NDEBUG */
+ return false;
+}
diff --git a/sql/log.h b/sql/log.h
index fc5209d1922..af2b56da802 100644
--- a/sql/log.h
+++ b/sql/log.h
@@ -19,6 +19,7 @@
#include "handler.h" /* my_xid */
#include "rpl_constants.h"
+#include <string>
class Relay_log_info;
class Gtid_index_writer;
@@ -406,7 +407,8 @@ class Event_log: public MYSQL_LOG
void set_write_error(THD *thd, bool is_transactional);
static bool check_write_error(THD *thd);
static bool check_cache_error(THD *thd, binlog_cache_data *cache_data);
- int write_cache(THD *thd, binlog_cache_data *cache_data);
+ int write_cache(THD *thd, binlog_cache_data *cache_data,
+ IO_CACHE *f= nullptr);
int write_cache_raw(THD *thd, IO_CACHE *cache);
char* get_name() { return name; }
void cleanup()
@@ -650,6 +652,7 @@ class MYSQL_BIN_LOG: public TC_LOG, private Event_log
bool queued_by_other;
ulong binlog_id;
bool ro_1pc; // passes the binlog_cache_mngr::ro_1pc value to Gtid ctor
+ bool non_blocking_log;
};
/*
@@ -986,7 +989,10 @@ class MYSQL_BIN_LOG: public TC_LOG, private Event_log
enum cache_type io_cache_type_arg,
ulong max_size,
bool null_created,
- bool need_mutex);
+ bool need_mutex,
+ const char *file_to_rename= nullptr,
+ my_off_t file_size= 0,
+ group_commit_entry *entry= nullptr);
bool open_index_file(const char *index_file_name_arg,
const char *log_name, bool need_mutex);
/* Use this to start writing a new log file */
@@ -1177,6 +1183,24 @@ class MYSQL_BIN_LOG: public TC_LOG, private Event_log
*/
my_off_t binlog_end_pos;
char binlog_end_pos_file[FN_REFLEN];
+
+private:
+ // reserved size for format_description_log_event, gtid_list_log_event ...
+ static const my_off_t non_blocking_binlog_reserved_size= 10 * 1024 * 1024;
+ bool can_use_non_blocking_binlog(group_commit_entry *entry);
+ std::string generate_random_file_name();
+ void generate_skip_event(uchar *buf, size_t buf_len, my_off_t pos, THD *thd);
+ /*
+ write gtid_log_event and ignorable_log_event(skip event) to binlog
+ @returns if a problem occurs, false otherwise
+ */
+ bool write_gtid_and_skip_event(my_off_t file_size,
+ group_commit_entry *entry);
+ /*
+ write non-blocking binlog for big transaction
+ @returns true if a problem occurs, false otherwise
+ */
+ bool write_non_blocking_binlog(group_commit_entry *entry);
};
class Log_event_handler
@@ -1476,4 +1500,6 @@ int binlog_commit_by_xid(handlerton *hton, XID *xid);
int binlog_rollback_by_xid(handlerton *hton, XID *xid);
bool write_bin_log_start_alter(THD *thd, bool& partial_alter,
uint64 start_alter_id, bool log_if_exists);
+
+extern mysql_rwlock_t binlog_checksum_rwlock;
#endif /* LOG_H */
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index dc4a955aa79..8f9bdb02599 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -557,6 +557,7 @@ ulong opt_binlog_commit_wait_usec= 0;
ulong opt_slave_parallel_max_queued= 131072;
my_bool opt_gtid_ignore_duplicates= FALSE;
uint opt_gtid_cleanup_batch_size= 64;
+ulonglong non_blocking_binlog_threshold= ULONGLONG_MAX;
const double log_10[] = {
1e000, 1e001, 1e002, 1e003, 1e004, 1e005, 1e006, 1e007, 1e008, 1e009,
@@ -1059,7 +1060,8 @@ PSI_rwlock_key key_rwlock_LOCK_grant, key_rwlock_LOCK_logger,
key_rwlock_LOCK_vers_stats, key_rwlock_LOCK_stat_serial,
key_rwlock_LOCK_ssl_refresh,
key_rwlock_THD_list,
- key_rwlock_LOCK_all_status_vars;
+ key_rwlock_LOCK_all_status_vars,
+ key_rwlock_binlog_checksum;
static PSI_rwlock_info all_server_rwlocks[]=
{
@@ -1077,7 +1079,8 @@ static PSI_rwlock_info all_server_rwlocks[]=
{ &key_rwlock_LOCK_stat_serial, "TABLE_SHARE::LOCK_stat_serial", 0},
{ &key_rwlock_LOCK_ssl_refresh, "LOCK_ssl_refresh", PSI_FLAG_GLOBAL },
{ &key_rwlock_THD_list, "THD_list::lock", PSI_FLAG_GLOBAL },
- { &key_rwlock_LOCK_all_status_vars, "LOCK_all_status_vars", PSI_FLAG_GLOBAL }
+ { &key_rwlock_LOCK_all_status_vars, "LOCK_all_status_vars", PSI_FLAG_GLOBAL },
+ { &key_rwlock_binlog_checksum, "binlog_checksum_rwlock", PSI_FLAG_GLOBAL }
};
#ifdef HAVE_MMAP
@@ -2105,6 +2108,7 @@ static void clean_up_mutexes()
mysql_mutex_destroy(&LOCK_start_thread);
mysql_mutex_destroy(&LOCK_status);
mysql_rwlock_destroy(&LOCK_all_status_vars);
+ mysql_rwlock_destroy(&binlog_checksum_rwlock);
mysql_mutex_destroy(&LOCK_delayed_insert);
mysql_mutex_destroy(&LOCK_delayed_status);
mysql_mutex_destroy(&LOCK_delayed_create);
@@ -4428,6 +4432,7 @@ static int init_thread_environment()
mysql_rwlock_init(key_rwlock_LOCK_ssl_refresh, &LOCK_ssl_refresh);
mysql_rwlock_init(key_rwlock_LOCK_grant, &LOCK_grant);
mysql_rwlock_init(key_rwlock_LOCK_all_status_vars, &LOCK_all_status_vars);
+ mysql_rwlock_init(key_rwlock_binlog_checksum, &binlog_checksum_rwlock);
mysql_cond_init(key_COND_start_thread, &COND_start_thread, NULL);
#ifdef HAVE_REPLICATION
mysql_mutex_init(key_LOCK_rpl_status, &LOCK_rpl_status, MY_MUTEX_INIT_FAST);
diff --git a/sql/mysqld.h b/sql/mysqld.h
index 4548a247ac1..4f9dfe72b4c 100644
--- a/sql/mysqld.h
+++ b/sql/mysqld.h
@@ -317,6 +317,7 @@ extern const char *encryption_algorithm_names[];
extern long opt_secure_timestamp;
extern uint default_password_lifetime;
extern my_bool disconnect_on_expired_password;
+extern ulonglong non_blocking_binlog_threshold;
enum secure_timestamp { SECTIME_NO, SECTIME_SUPER, SECTIME_REPL, SECTIME_YES };
bool is_set_timestamp_forbidden(THD *thd);
@@ -371,7 +372,8 @@ extern PSI_rwlock_key key_rwlock_LOCK_grant, key_rwlock_LOCK_logger,
key_rwlock_LOCK_system_variables_hash, key_rwlock_query_cache_query_lock,
key_LOCK_SEQUENCE,
key_rwlock_LOCK_vers_stats, key_rwlock_LOCK_stat_serial,
- key_rwlock_THD_list;
+ key_rwlock_THD_list,
+ key_rwlock_binlog_checksum;
#ifdef HAVE_MMAP
extern PSI_cond_key key_PAGE_cond, key_COND_active, key_COND_pool;
diff --git a/sql/sys_vars.cc b/sql/sys_vars.cc
index 47e31291e6b..74e6fe9bb23 100644
--- a/sql/sys_vars.cc
+++ b/sql/sys_vars.cc
@@ -7327,3 +7327,11 @@ static Sys_var_enum Sys_block_encryption_mode(
"AES_ENCRYPT() and AES_DECRYPT() functions",
SESSION_VAR(block_encryption_mode), CMD_LINE(REQUIRED_ARG),
block_encryption_mode_values, DEFAULT(0));
+
+static Sys_var_ulonglong Sys_var_non_blocking_binlog_threshold(
+ "non_blocking_binlog_threshold",
+ "If the binlog size of a transaction exceeds this value, we write it to a "
+ "new temporary file and rename it to the next binlog file.",
+ GLOBAL_VAR(non_blocking_binlog_threshold), CMD_LINE(OPT_ARG),
+ VALID_RANGE(256 * 1024 * 1024, ULONGLONG_MAX), DEFAULT(ULONGLONG_MAX),
+ BLOCK_SIZE(1));
--
2.30.2
1
0