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[Maria-developers] MDEV-13995 MAX(timestamp) returns a wrong result near DST change
by Alexander Barkov 03 Jul '18

03 Jul '18

Hi Sergei, Please review a patch for MDEV-13995. Thanks!

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[Maria-developers] FOR loop documentation
by Alexander Barkov 03 Jul '18

03 Jul '18

Hi Ian, can you please document the FOR loop? I've created an MDEV for it: MDEV-16674 Document FOR loop with links to all relevant tasks. Thanks!

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Re: [Maria-developers] ed2dcf0: MDEV-15473 Isolate/sandbox PAM modules, so that they can't crash the server.
by Sergei Golubchik 01 Jul '18

01 Jul '18

Hi, Alexey! Looks good, few comments/suggestions below. That and my reply to your email (about tests and plugin name). Just push when you're ready, no need to put it In-Review again. Thanks! On Jul 01, Alexey Botchkov wrote: > revision-id: ed2dcf00fd26e363f34638a841ff17a111b7e324 (mariadb-10.3.6-33-ged2dcf0) > parent(s): 4b0cedf82d8d8ba582648dcb4a2620c146862a43 > committer: Alexey Botchkov > timestamp: 2018-07-01 12:23:54 +0400 > message: > > MDEV-15473 Isolate/sandbox PAM modules, so that they can't crash the server. > > The new 'safe' version of the PAM plugin. > It works using the auth_pam_tool executable. That isolates possible > crashes in pam modules and, since we can set the +s bit for the tool, > we can normally run modules that read protected information. > > diff --git a/plugin/auth_pam/CMakeLists.txt b/plugin/auth_pam/CMakeLists.txt > index 5131752..9c0859c 100644 > --- a/plugin/auth_pam/CMakeLists.txt > +++ b/plugin/auth_pam/CMakeLists.txt > @@ -8,6 +8,10 @@ IF(HAVE_PAM_APPL_H) > IF(HAVE_STRNDUP) > ADD_DEFINITIONS(-DHAVE_STRNDUP) > ENDIF(HAVE_STRNDUP) > + ADD_DEFINITIONS(-D_GNU_SOURCE) > MYSQL_ADD_PLUGIN(auth_pam auth_pam.c LINK_LIBRARIES pam MODULE_ONLY) > + MYSQL_ADD_PLUGIN(auth_pam_safe auth_pam_safe.c LINK_LIBRARIES pam dl MODULE_ONLY) perhaps, rename to auth_pam_new.c (and auth_pam_new.so)? > + MYSQL_ADD_EXECUTABLE(auth_pam_tool auth_pam_tool.c DESTINATION ${INSTALL_PLUGINDIR}/auth_pam_tool_dir COMPONENT Server) > + TARGET_LINK_LIBRARIES(auth_pam_tool pam) > ENDIF(HAVE_PAM_APPL_H) > > diff --git a/plugin/auth_pam/auth_pam.c b/plugin/auth_pam/auth_pam.c > index ffc3d6f..c785ba4 100644 > --- a/plugin/auth_pam/auth_pam.c > +++ b/plugin/auth_pam/auth_pam.c > @@ -1,5 +1,5 @@ > /* > - Copyright (c) 2011, 2012, Monty Program Ab > + Copyright (c) 2018 MariaDB Corporation should be "2011, 2018" not just "2018" > 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 > static struct st_mysql_auth info = > diff --git a/plugin/auth_pam/auth_pam_base.c b/plugin/auth_pam/auth_pam_base.c > new file mode 100644 > index 0000000..30b4e01 > --- /dev/null > +++ b/plugin/auth_pam/auth_pam_base.c > @@ -0,0 +1,171 @@ > +/* > + Copyright (c) 2018 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 Street, Fifth Floor, Boston, MA 02111-1301 USA */ > + > +// struct param { > + // unsigned char buf[10240], *ptr; > + // MYSQL_PLUGIN_VIO *vio; > +// }; > +//static int write_packet(struct param *param, const unsigned char *buf, > + //int buf_len) > +//static int read_packet(struct param *param, unsigned char **pkt) forgot to remove these comments? > + > +#include <stdio.h> > +#include <string.h> > +#include <security/pam_appl.h> > +#include <security/pam_modules.h> > + > diff --git a/plugin/auth_pam/auth_pam_safe.c b/plugin/auth_pam/auth_pam_safe.c > new file mode 100644 > index 0000000..9dac90d > --- /dev/null > +++ b/plugin/auth_pam/auth_pam_safe.c > @@ -0,0 +1,235 @@ ... > + PAM_DEBUG((stderr, "PAM: Child process prepares pipes.\n")); > + > + if (close(p_to_c[1]) < 0 || > + close(c_to_p[0]) < 0 || > + dup2(p_to_c[0], 0) < 0 || /* Parent's pipe to STDIN. */ > + dup2(c_to_p[1], 1) < 0) /* Sandbox's pipe to STDOUT. */ > + { > + exit(-1); > + } > + > + PAM_DEBUG((stderr, "PAM: check tool directory: %s, %s.\n", > + opt_plugin_dir, tool_name)); > + plugin_dir_len= strlen(opt_plugin_dir); > + if (plugin_dir_len + tool_name_len + 2 > sizeof(toolpath)) > + { > + /* Tool path too long. */ > + exit(-1); > + } > + > + memcpy(toolpath, opt_plugin_dir, plugin_dir_len); > + if (plugin_dir_len && toolpath[plugin_dir_len-1] != FN_LIBCHAR) > + toolpath[plugin_dir_len++]= FN_LIBCHAR; > + memcpy(toolpath+plugin_dir_len, tool_name, tool_name_len+1); check the length before copying? like, toolpath+plugin_dir_len+tool_name_len+1 < sizeof(toolpath) ? or simply strnxfrm(toolpath, sizeof(toolpath), opt_plugin_dir, "/", tool_name, NULL); > + > + PAM_DEBUG((stderr, "PAM: execute pam sandbox [%s].\n", toolpath)); > + (void) execl(toolpath, toolpath, NULL); > + PAM_DEBUG((stderr, "PAM: exec() failed.\n")); > + exit(-1); > + } ... > +static char use_cleartext_plugin; > +static MYSQL_SYSVAR_BOOL(use_cleartext_plugin, use_cleartext_plugin, > + PLUGIN_VAR_NOCMDARG | PLUGIN_VAR_READONLY, > + "Use mysql_cleartext_plugin on the client side instead of the dialog " > + "plugin. This may be needed for compatibility reasons, but it only " > + "supports simple PAM policies that don't require anything besides " > + "a password", NULL, NULL, 0); > + > +#ifndef DBUG_OFF > +static MYSQL_SYSVAR_BOOL(debug, pam_debug, PLUGIN_VAR_OPCMDARG, > + "Log all PAM activity", NULL, NULL, 0); > +#endif still a lot of similar code in auth_pam.c and auth_pam_safe.c. could be moved to auth_pam_common.c? > + > + > diff --git a/plugin/auth_pam/auth_pam_tool.c b/plugin/auth_pam/auth_pam_tool.c > new file mode 100644 > index 0000000..5f19d29 > --- /dev/null > +++ b/plugin/auth_pam/auth_pam_tool.c > @@ -0,0 +1,132 @@ > + > +int main(int argc, char **argv) > +{ > + struct param param; > + MYSQL_SERVER_AUTH_INFO info; > + unsigned char field; > + int res; > + char a_buf[MYSQL_USERNAME_LENGTH + 1 + 1024]; > + > + if (read(0, &field, 1) < 1) > + return -1; > +#ifndef DBUG_OFF > + pam_debug= field; > +#endif > + > + PAM_DEBUG((stderr, "PAM: sandbox started [%s].\n", argv[0])); > + > + info.user_name= a_buf; > + if ((res= read_string(0, info.user_name, sizeof(a_buf))) < 0) > + return -1; > + PAM_DEBUG((stderr, "PAM: sandbox username [%s].\n", info.user_name)); > + > +#ifndef DBUG_OFF > + /* Produce the crash for testing purposes. */ > + if ((res == 14) && > + memcmp(info.user_name, "crash_pam_tool", 14) == 0) > + { > + info.user_name= 0; > + memcpy(info.user_name, a_buf, sizeof(a_buf)); > + return -1; > + } now I think it's better to put it into pam_mariadb_mtr.c, sorry :( then it doesn't need to be in debug-only builds > +#endif > + > + info.auth_string= info.user_name + res + 1; > + if (read_string(0, info.auth_string, sizeof(a_buf) - 1 - res) < 0) > + return -1; > + > + PAM_DEBUG((stderr, "PAM: sandbox auth string [%s].\n", info.auth_string)); Regards, Sergei Chief Architect MariaDB and security(a)mariadb.org

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Re: [Maria-developers] 84c9ec5: MDEV-15473 Isolate/sandbox PAM modules, so that they can't crash the server.
by Sergei Golubchik 01 Jul '18

01 Jul '18

Hi, Alexey! On Jun 30, Alexey Botchkov wrote: > > not sure about calling it "safe". I think it's more of a side > > effect, the main feature it that it works, while old pam plugin > > simply doesn't :) unless mysqld is run as root. > > > > and not totally sure about calling it also pam. it means one won't > > be able to load it and the old pam plugin at the same time. I > > suspect it'll still ok and benefits overweight it. > > Well i'm open to any ideas here :) > We can swap 'safe' with somethin else. 'box' for instance. > Or we can instead rename the original version like 'fast' or 'old'. > Finally we can build only one version of the plugin. The 'safe' > whenever possible. I'd rather rename the old version to (old) or (requires root) or something. > I also have a question about the testing. > Now pam*.test-s rely on some mariadb_mtr setup for PAM. How can i see what > is in the expected pam.d configuration file, and what pam modules are used? See plugin/auth_pam/testing/pam_mariadb_mtr.c Regards, Sergei Chief Architect MariaDB and security(a)mariadb.org

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[Maria-developers] FYI: 10.3 master branch head builds OK Travis-CI
by Otto Kekäläinen 30 Jun '18

30 Jun '18

Hello! I am happy to announce that of this morning, Travis-CI for MariaDB 10.3 shows all green again! [1] Developers: please rebase your 10.3 branches on top of the latest 10.3 to get the Travis-CI benefits, and please don't break Travis. Last time it was all green in January it took only a few weeks until it was broken again. We don't have protected branches enabled yet, so we rely on all developers to be diligent and not push changes that break the all-green-status on Travis-CI for 10.3. Otto [1] https://travis-ci.org/MariaDB/server/builds [2} https://mariadb.org/protected-branches-ensuring-code-quality-git/

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[Maria-developers] MariaDB 10.3.7 and GSSAPI : Issue
by REIX, Tony 28 Jun '18

28 Jun '18

Hi, We are porting MariaDB (10.3.7 now) on AIX. On some machines we have the following error message when running: + cmake . --trace --debug-trycompile --check-system-vars -GUnix Makefiles -DBUILD_CONFIG=mysql_release -DFEATURE_SET=community -DINSTALL_LAYOUT=RPM -DLOG_LOCATION=/opt/freeware/mariadb/mariadb.log -DPID_FILE_DIR=%{_rundir}/mariadb -DNICE_PROJECT_NAME=MariaDB -DCMAKE_INSTALL_PREFIX=/opt/freeware -DCMAKE_AR=/usr/bin/ar -DCMAKE_SYSTEM_NAME=AIX -DINSTALL_SYSCONFDIR=/opt/freeware/etc -DINSTALL_SYSCONF2DIR=/opt/freeware/etc/my.cnf.d -DINSTALL_INCLUDEDIR=include/mysql -DINSTALL_INFODIR=share/info -DINSTALL_LIBDIR=/opt/freeware/lib64 -DINSTALL_MANDIR=share/man -DINSTALL_MYSQLSHAREDIR=share/mariadb -DINSTALL_PLUGINDIR=/opt/freeware/lib64/mariadb/plugin -DINSTALL_MYSQLTESTDIR=share/mysql-test -DINSTALL_SBINDIR=libexec -DINSTALL_SCRIPTDIR=bin -DINSTALL_SQLBENCHDIR=share -DINSTALL_SUPPORTFILESDIR=share/mariadb -DMYSQL_DATADIR=/opt/freeware/var/lib/mysql -DMYSQL_UNIX_ADDR=/var/lib64/mysql/mysql.sock -DTMPDIR=/var/tmp -DENABLED_LOCAL_INFILE=ON -DSECURITY_HARDENED=ON -DENABLE_DTRACE=ON -DWITH_EMBEDDED_SERVER=ON -DWITH_MARIABACKUP=ON -DWITH_UNIT_TESTS=ON -DCONC_WITH_SSL=ON -DWITH_SSL=system -DWITH_ZLIB=system -DWITH_JEMALLOC=no -DPLUGIN_MROONGA=DYNAMIC -DPLUGIN_OQGRAPH=DYNAMIC -DPLUGIN_CRACKLIB_PASSWORD_CHECK=DYNAMIC -DPLUGIN_ROCKSDB=DYNAMIC -DPLUGIN_SPHINX=DYNAMIC -DPLUGIN_TOKUDB=DYNAMIC -DPLUGIN_CONNECT=DYNAMIC -DCONNECT_WITH_MONGO=OFF -DCONNECT_WITH_JDBC=OFF -DCMAKE_CROSSCOMPILING=FALSE -DWITH_VALGRIND=OFF -DCMAKE_BUILD_TYPE=Debug -DWITH_ASAN=OFF -DWITH_INNODB_EXTRA_DEBUG=ON ...... /opt/freeware/share/cmake/Modules/CheckSymbolExists.cmake(87): try_compile(HAVE_KRB5_FREE_UNPARSED_NAME ${CMAKE_BINARY_DIR} /opt/freeware/src/packages/BUILD/mariadb-10.3.7/64bit/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} ${CHECK_SYMBOL_EXISTS_LIBS} CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_SYMBOL_EXISTS_FLAGS} ${CMAKE_SYMBOL_EXISTS_INCLUDES} OUTPUT_VARIABLE OUTPUT ) CMake Error at /opt/freeware/src/packages/BUILD/mariadb-10.3.7/64bit/CMakeFiles/CMakeTmp/CMakeLists.txt:14 (add_executable): Target "cmTC_3efe0" links to target "-L/opt/freeware/lib -blibpath:/opt/freeware/lib::/usr/lib:/lib -I/usr/include -I/opt/freeware/include -L/opt/freeware/lib -blibpath:/opt/freeware/lib:/usr/lib:/lib -bmaxdata:0x80000000 -brtl -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lpthreads" but the target was not found. Perhaps a find_package() call is missing for an IMPORTED target, or an ALIAS target is missing? CMake Error at /opt/freeware/share/cmake/Modules/CheckSymbolExists.cmake:87 (try_compile): Failed to generate test project build system. Call Stack (most recent call first): /opt/freeware/share/cmake/Modules/CheckCXXSymbolExists.cmake:39 (__CHECK_SYMBOL_EXISTS_IMPL) plugin/auth_gssapi/CMakeLists.txt:24 (CHECK_CXX_SYMBOL_EXISTS) In file: mariadb-10.3.7/64bit/CMakeFiles/CMakeTmp/CMakeLists.txt , there is: cmake_minimum_required(VERSION 3.11.4.0) set(CMAKE_MODULE_PATH "/opt/freeware/src/packages/BUILD/mariadb-10.3.7/64bit/cmake;/opt/freeware/src/packages/BUILD/mariadb-10.3.7/64bit/plugin/auth_gssapi/cmake") project(CMAKE_TRY_COMPILE CXX) set(CMAKE_VERBOSE_MAKEFILE 1) set(CMAKE_CXX_FLAGS " -pie -fPIC -fPIC -fno-rtti") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COMPILE_DEFINITIONS}") set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${EXE_LINKER_FLAGS}") include_directories(${INCLUDE_DIRECTORIES}) set(CMAKE_SUPPRESS_REGENERATION 1) link_directories(${LINK_DIRECTORIES}) add_definitions(-DPACKAGE=test -D_LARGEFILE_SOURCE -D_LARGE_FILES -D_FILE_OFFSET_BITS=64 -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS) cmake_policy(SET CMP0065 OLD) set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "/opt/freeware/src/packages/BUILD/mariadb-10.3.7/64bit/CMakeFiles/CMakeTmp") add_executable(cmTC_3efe0 "/opt/freeware/src/packages/BUILD/mariadb-10.3.7/64bit/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx") target_link_libraries(cmTC_3efe0 "-L/opt/freeware/lib -blibpath:/opt/freeware/lib::/usr/lib:/lib -I/usr/include -I/opt/freeware/include -L/opt/freeware/lib -blibpath:/opt/freeware/lib:/usr/lib:/lib -bmaxdata:0x80000000 -brtl -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lpthreads" ) Talking with CMake guys, they said: > I suspect mariadb's source is setting CMAKE_REQUIRED_LIBRARIES > to a space-separated value instead of a ;-separated value. > That's broken here: https://github.com/MariaDB/server/blob/ed0b84a0270bd99b001dd00654875d26e29b…<https://github.com/MariaDB/server/blob/ed0b84a0270bd99b001dd00654875d26e29b…> Do you have an idea about what is broken and what should be changed? either on AIX or for all target? Thanks/Regards, Cordialement, Tony Reix ATOS / Bull SAS ATOS Expert IBM Coop Architect & Technical Leader Office : +33 (0) 4 76 29 72 67 1 rue de Provence - 38432 Échirolles - France www.atos.net<https://mail.ad.bull.net/owa/redir.aspx?C=PvphmPvCZkGrAgHVnWGsdMcDKgzl_dEIs…>

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[Maria-developers] Dead code in class sp_head
by Alexander Barkov 26 Jun '18

26 Jun '18

Hi Aleksey, I found some dead code in sp_head that seem to have appeared in your patch for "IB: 0.2 part IV". If you don't mind, I'll remove it. Please have a look into the attached patch. Thanks.

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Re: [Maria-developers] [Commits] MDEV-16166 RBR breaks with HA_ERR_KEY_NOT_FOUND upon DELETE
by Alexey Botchkov 25 Jun '18

25 Jun '18

Ok to push. 05.06.2018 13:45, Sachin Setiya wrote: > commit bde95bc70d0ac011f55f1b3b55fee1c9276859da > Author: sachin <sachin.setiya(a)maridb.com > <mailto:sachin.setiya@maridb.com>> > Date: Tue Jun 5 15:14:19 2018 +0530 > > MDEV-16166 RBR breaks with HA_ERR_KEY_NOT_FOUND upon DELETE from > table... > with spatial index > So the issue is since it is spatial index , at the time of > searching index > for key (Rows_log_event::find_row) we use wrong field image we use > Field::itRAW while we should be using Field::itMBR > > diff --git a/mysql-test/suite/rpl/r/rpl_row_spatial.result > b/mysql-test/suite/rpl/r/rpl_row_spatial.result > new file mode 100644 > index 00000000000..8f546fc479e > --- /dev/null > +++ b/mysql-test/suite/rpl/r/rpl_row_spatial.result > @@ -0,0 +1,14 @@ > +include/master-slave.inc > +[connection master] > +CREATE TABLE t1 (g POINT NOT NULL, SPATIAL INDEX(g)); > +INSERT INTO t1 VALUES (ST_GEOMFROMTEXT('Point(1 1)')); > +INSERT INTO t1 VALUES (ST_GEOMFROMTEXT('Point(2 1)')); > +INSERT INTO t1 VALUES (ST_GEOMFROMTEXT('Point(1 2)')); > +INSERT INTO t1 VALUES (ST_GEOMFROMTEXT('Point(2 2)')); > +DELETE FROM t1 where MBREqual(g, ST_GEOMFROMTEXT('Point(1 2)')); > +select count(*) from t1; > +count(*) > +3 > +DELETE FROM t1; > +drop table t1; > +include/rpl_end.inc > diff --git a/mysql-test/suite/rpl/t/rpl_row_spatial.test > b/mysql-test/suite/rpl/t/rpl_row_spatial.test > new file mode 100644 > index 00000000000..00c3dd7c54d > --- /dev/null > +++ b/mysql-test/suite/rpl/t/rpl_row_spatial.test > @@ -0,0 +1,17 @@ > +--source include/have_binlog_format_row.inc > +--source include/master-slave.inc > + > +CREATE TABLE t1 (g POINT NOT NULL, SPATIAL INDEX(g)); > +INSERT INTO t1 VALUES (ST_GEOMFROMTEXT('Point(1 1)')); > +INSERT INTO t1 VALUES (ST_GEOMFROMTEXT('Point(2 1)')); > +INSERT INTO t1 VALUES (ST_GEOMFROMTEXT('Point(1 2)')); > +INSERT INTO t1 VALUES (ST_GEOMFROMTEXT('Point(2 2)')); > +DELETE FROM t1 where MBREqual(g, ST_GEOMFROMTEXT('Point(1 2)')); > + > +--sync_slave_with_master > +select count(*) from t1; > + > +--connection master > +DELETE FROM t1; > +drop table t1; > +--source include/rpl_end.inc > diff --git a/sql/key.cc b/sql/key.cc > index 700bf6a05a6..7e5a3309b10 100644 > --- a/sql/key.cc > +++ b/sql/key.cc > @@ -145,7 +145,8 @@ void key_copy(uchar *to_key, uchar *from_record, > KEY *key_info, > { > key_length-= HA_KEY_BLOB_LENGTH; > length= min(key_length, key_part->length); > - uint bytes= key_part->field->get_key_image(to_key, length, > Field::itRAW); > + uint bytes= key_part->field->get_key_image(to_key, length, > +key_info->flags & HA_SPATIAL ? Field::itMBR : Field::itRAW); > if (with_zerofill && bytes < length) > bzero((char*) to_key + bytes, length - bytes); > to_key+= HA_KEY_BLOB_LENGTH; > > > -- > Regards > Sachin Setiya > Software Engineer at MariaDB > > > _______________________________________________ > commits mailing list > commits(a)mariadb.org > https://lists.askmonty.org/cgi-bin/mailman/listinfo/commits

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[Maria-developers] MDEV-12574 MAX(old_decimal) produces a column of the old DECIMAL type
by Alexander Barkov 24 Jun '18

24 Jun '18

Hi Sergei, Please review a patch for MDEV-12574. I suggest we push it into 10.2 (not into 10.3). Thanks!

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Re: [Maria-developers] 37b432c1d59: MDEV-15242 Poor RBR update performance with partitioned tables
by Sergei Golubchik 22 Jun '18

22 Jun '18

Hi, andrei.elkin! On Jun 19, andrei.elkin(a)pp.inet.fi wrote: > revision-id: 37b432c1d59e66b742f97a280cae7784d85e62ec (mariadb-10.0.35-41-g37b432c1d59) > parent(s): d2e1ed8b936a78ceeec0e64231997d7ed18a4daf > author: Andrei Elkin > committer: Andrei Elkin > timestamp: 2018-06-19 18:14:47 +0300 > message: > > MDEV-15242 Poor RBR update performance with partitioned tables > > Observed and described > partitioned engine execution time difference > between master and slave was caused by excessive invocation > of base_engine::rnd_init which was done also for partitions > uninvolved into Rows-event operation. > The bug's slave slowdown therefore scales with the number of partitions. Ok to push > Fixed with applying an upstream patch. > > References: > ---------- > https://bugs.mysql.com/bug.php?id=73648 > Bug#25687813 REPLICATION REGRESSION WITH RBR AND PARTITIONED TABLES > Regards, Sergei Chief Architect MariaDB and security(a)mariadb.org

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