November 2016 - discuss - lists.mariadb.org

Re: [Maria-discuss] Aborted connection (CLOSE_CONNECTION)
by Reindl Harald 29 Nov '16

29 Nov '16

Am 29.11.2016 um 11:49 schrieb Florent B: > For example, if I try this in PHP: > > 1/ Connect to mariadb > > 2/ sleep 610 seconds > > 3/ ping mariadb > > => I got Server has gone away error. > > With a 590 sleep time, no error. > > I use MariaDB 10.1, didn't change any "timeout" value in MariaDB : > interactive_timeout & wait_timeout are 28800 http://php.net/manual/en/mysqlnd.config.php#ini.mysqlnd.net-read-timeout

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[Maria-discuss] semi-sync replication issue
by Rhys.Campbell＠swisscom.com 28 Nov '16

28 Nov '16

Hello All, I recently upgraded to MariaDB 10.0.28 and I am having sporadic issues with semi-sync replicating timeouts. Lots of these are logged.... [ERROR] Read semi-sync reply network error: (errno: 1159) [ERROR] Semi-sync master failed on net_flush() before waiting for slave reply Is anyone else experiencing this? Cheers, Rhys

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[Maria-discuss] jdbc failure after restart
by l vic 23 Nov '16

23 Nov '16

i have the following jdbc exception in my jdbc client for the node 1 after another node (node2) is removed: om.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: WSREP has not yet prepared node for application use at sun.reflect.GeneratedConstructorAccessor9.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) at com.mysql.jdbc.Util.getInstance(Util.java:387) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:917) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2526) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2673) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2545) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2503) at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1369) at com.mysql.jdbc.ConnectionImpl.loadServerVariables(ConnectionImpl.java:3833) at com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3283) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2297) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) at sun.reflect.GeneratedConstructorAccessor5.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) at java.sql.DriverManager.getConnection(DriverManager.java:664) I wonder why i have this failure when i just trying to read db from the unaffected node? The failure seems to be permanent, once it happened - all subsequent reads fail

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Re: [Maria-discuss] master and slave binlog question?
by Pavel Ivanov 18 Nov '16

18 Nov '16

I guess you can do it like that, yes. I wonder what do you need it for though. On Thu, Nov 17, 2016 at 9:45 PM, Ljr Yang <dbmsprog(a)gmail.com> wrote: > Thank you. > > innobackup backup info on slave: > #cat xtrabackup_binlog_info > mysql-bin.000003 83882214 0-118-60061898358 > > Only filter GTID 0-118-60061898358 in all binlog file of slave ? > > mysqlbinlog -vv mysqbin.000001 | grep -B5 "0-118-60061898358" > mysqlbinlog -vv mysqbin.000002 | grep -B5 "0-118-60061898358" > ........ > > 2016-11-18 13:24 GMT+08:00 Pavel Ivanov <pivanof(a)google.com>: >> >> There is no way to find corresponding binlog file and position on the >> slave. You should use GTIDs to find corresponding binlog positions. >> >> On Thu, Nov 17, 2016 at 7:19 PM, Ljr Yang <dbmsprog(a)gmail.com> wrote: >> > >> > Hi, >> > we config master slave and set log_slave_updates = 1 on slave. >> > on master server‘s binlog file and pos , example: mysql-bin.000005 >> > 2036891 , >> > how could quick find corresponding binlog file and pos on slave? >> > Thanks. >> > >> > -- >> > Ljr >> > >> > _______________________________________________ >> > Mailing list: https://launchpad.net/~maria-discuss >> > Post to : maria-discuss(a)lists.launchpad.net >> > Unsubscribe : https://launchpad.net/~maria-discuss >> > More help : https://help.launchpad.net/ListHelp >> > > > > > > -- > Ljr

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[Maria-discuss] master and slave binlog question?
by Ljr Yang 18 Nov '16

18 Nov '16

Hi, we config master slave and set log_slave_updates = 1 on slave. on master server‘s binlog file and pos , example: mysql-bin.000005 2036891 , how could quick find corresponding binlog file and pos on slave? Thanks. -- Ljr

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[Maria-discuss] Download speeds on archive.mariadb.org
by Guillaume Lefranc 14 Nov '16

14 Nov '16

Hi everyone, Download speeds on archive.mariadb.org have reached an abysmal level - 6kb/s today. Honestly, what is the foundation waiting for to solve this issue that has been lasting for years? I am ready to donate server space and bandwidth myself if needed.

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[Maria-discuss] galera replication specs?
by l vic 14 Nov '16

14 Nov '16

Is there online docs to describe Galera in detail, such as specs/RFC? Thanks,

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[Maria-discuss] rsync failure?
by l vic 08 Nov '16

08 Nov '16

Have the rsync failure (see the trace below): 2016-11-08 15:17:34 139959897945856 [ERROR] WSREP: Failed to read 'ready <addr>' from: wsrep_sst_rsync --role 'joiner' --address 'node3.frame.mesos' --datadir '/var/lib/mysql/' --parent '114' '' Read: '(null)' 2016-11-08 15:17:34 139959897945856 [ERROR] WSREP: Process completed with error: wsrep_sst_rsync --role 'joiner' --address 'node3.frame.mesos' --datadir '/var/lib/mysql/' --parent '114' '' : 1 (Operation not permitted) 2016-11-08 15:17:34 139960239241984 [ERROR] WSREP: Failed to prepare for 'rsync' SST. Unrecoverable. 2016-11-08 15:17:34 139960239241984 [ERROR] Aborting Can someone with better understanding of replication process explain the nature of this problem? Can it be caused by hostname resolution failure, or would it be storage related? Thank you,

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[Maria-discuss] rsync timeout?
by l vic 08 Nov '16

08 Nov '16

Is it possible to increase rsync timeout? I checked http://galeracluster.com/documentation-webpages/galeraparameters.html but couldn't find corresponding parameters... Thanks, -V

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[Maria-discuss] on stored procedures
by Federico Razzoli 08 Nov '16

08 Nov '16

Some good points from Bill Karwin: https://www.quora.com/What-are-the-reasons-not-to-use-or-not-use-stored-pro… Federico

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