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df2f01c14a
(Found during MDEV-12179 development, but independent of it, so put into a separate commit).
106 lines
2.6 KiB
Plaintext
106 lines
2.6 KiB
Plaintext
--source include/have_innodb.inc
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--let $rpl_topology=1->2
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--source include/rpl_init.inc
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# Test various aspects of parallel replication.
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--connection server_2
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SET @old_parallel_threads=@@GLOBAL.slave_parallel_threads;
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--source include/stop_slave.inc
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SET GLOBAL slave_parallel_threads=10;
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SET @old_max_relay= @@GLOBAL.max_relay_log_size;
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SET GLOBAL max_relay_log_size = 4096;
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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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--connection server_1
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ALTER TABLE mysql.gtid_slave_pos ENGINE=InnoDB;
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CREATE TABLE t1 (a int PRIMARY KEY, b VARCHAR(100)) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (1, "a");
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--save_master_pos
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--connection server_2
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--sync_with_master
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--echo *** Create a long transaction that will span a relay log file. ***
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--connection server_1
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# Add some transactions in separate domains, that will cause the need to
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# have a multi-valued restart position in the relay log for the SQL thread.
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SET @old_domain= @@gtid_domain_id;
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SET gtid_domain_id=10;
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INSERT INTO t1 VALUES (10000, "domain 10");
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SET gtid_domain_id=20;
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INSERT INTO t1 VALUES (20000, "domain 20");
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SET gtid_domain_id=@old_domain;
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BEGIN;
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--echo [lots of inserts omitted]
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--disable_query_log
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--let $count = 500
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while ($count) {
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eval INSERT INTO t1 VALUES (1000+$count, REPEAT("hulubulu??!?", 8));
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dec $count;
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}
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--enable_query_log
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COMMIT;
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--save_master_pos
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--connection server_2
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--sync_with_master
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--connection server_1
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# Now do another one, to make the inuse_relaylog proceed to somewhere inside
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# the first large transaction.
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BEGIN;
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--echo [lots of inserts omitted]
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--disable_query_log
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--let $count = 500
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while ($count) {
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eval INSERT INTO t1 VALUES (2000+$count, REPEAT("hulubulu??!?", 8));
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dec $count;
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}
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--enable_query_log
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COMMIT;
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--save_master_pos
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--connection server_2
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--sync_with_master
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# Stop and restart the SQL thread only.
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# The bug was that the SQL thread would restart at the start
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# of a relay log file, which could be in the middle of an event group.
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# This way, part of that event group could be wrongly re-applied.
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--source include/stop_slave_sql.inc
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START SLAVE SQL_THREAD;
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--source include/wait_for_slave_to_start.inc
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--connection server_1
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INSERT INTO t1 VALUES (100000, "More stuffs.");
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INSERT INTO t1 VALUES (100001, "And even more");
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--save_master_pos
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--connection server_2
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--sync_with_master
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SELECT * FROM t1 WHERE a >= 100000 ORDER BY a;
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# Clean up.
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--connection server_2
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--source include/stop_slave.inc
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SET GLOBAL slave_parallel_threads=@old_parallel_threads;
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SET GLOBAL max_relay_log_size= @old_max_relay;
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--source include/start_slave.inc
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--connection server_1
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ALTER TABLE mysql.gtid_slave_pos ENGINE=MyISAM;
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DROP TABLE t1;
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--source include/rpl_end.inc
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