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The problem is that these tests run optimistic parallel replication with non-transactional mysql.gtid_slave_pos table. Very occasionally InnoDB stats update may race with one another and cause a parallel replication deadlock kill after the mysql.gtid_slave_pos table has been updated. Since mysql.gtid_slave_pos is non-transactional, the update cannot be rolled back, and transaction retry will fail with a duplicate key error in mysql.gtid_slave_pos. Fixed by altering the storage engine to InnoDB for the table. Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
59 lines
1.9 KiB
Text
59 lines
1.9 KiB
Text
#
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# Start Alter with Parallel Replication
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# 2 domain id
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# |Concurrent alters| < |Parallel workers on slave|
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# |x| denotes number of entities it encloses
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# slave_domain_parallel_threads < |Concurrent Alters|
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#
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--source include/have_log_bin.inc
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--source include/have_innodb.inc
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--source include/master-slave.inc
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--source include/have_debug.inc
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--connection master
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ALTER TABLE mysql.gtid_slave_pos ENGINE=InnoDB;
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--let $binlog_alter_two_phase= `select @@binlog_alter_two_phase`
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set global binlog_alter_two_phase = ON;
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set binlog_alter_two_phase = ON;
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--connection slave
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--let $gtid_strict_mode= `select @@gtid_strict_mode`
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--let $slave_parallel_threads= `select @@slave_parallel_threads`
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--let $slave_parallel_mode= `select @@slave_parallel_mode`
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--let $slave_domain_parallel_threads= `select @@slave_domain_parallel_threads`
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set global gtid_strict_mode=1;
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--connection slave
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--source include/stop_slave.inc
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SET GLOBAL slave_parallel_threads=10;
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set global slave_parallel_mode=optimistic;
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set global slave_domain_parallel_threads=3;
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change master to master_use_gtid=slave_pos;
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--source include/start_slave.inc
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--echo # Parallel Slave
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--connection master
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--let $master_server= "master"
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--let $domain_1=11
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--let $domain_2=12
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--let $M_port= $MASTER_MYPORT
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--let $S_port= $SLAVE_MYPORT
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--let $sync_slave=1
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--source include/start_alter_include.inc
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--connection master
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--source include/save_master_gtid.inc
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--connection slave
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--source include/sync_with_master_gtid.inc
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--echo # cleanup
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--source include/stop_slave.inc
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--eval set global slave_parallel_threads = $slave_parallel_threads;
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--eval set global slave_parallel_mode = $slave_parallel_mode;
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--eval set global gtid_strict_mode = $gtid_strict_mode;
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--eval set global slave_domain_parallel_threads = $slave_domain_parallel_threads;
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set global gtid_domain_id= 0;
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--source include/start_slave.inc
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--connection master
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--eval set global binlog_alter_two_phase=$binlog_alter_two_phase;
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set global gtid_domain_id= 0;
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--source include/rpl_end.inc
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