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When replicated events are from Master unaware of MariaDB GTID their handling by the Parallel slave misses Seconds_Behind_Master updating. In the bug condition the Show-Slave-Status' field remains unchanged. Because in such case event execution is sequential the bug is fixed with deploying the same logics as in the explicit single-threaded mode with is to set Relay_log_event::last_master_timestamp member early at the end of event reading from the relay log.
36 lines
933 B
Text
36 lines
933 B
Text
include/master-slave.inc
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[connection master]
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connection slave;
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include/stop_slave.inc
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connection master;
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include/rpl_stop_server.inc [server_number=1]
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include/rpl_start_server.inc [server_number=1]
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connection slave;
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SET @old_parallel= @@GLOBAL.slave_parallel_threads;
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SET GLOBAL slave_parallel_threads=10;
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CHANGE MASTER TO master_host='127.0.0.1', master_port=SERVER_MYPORT_1, master_user='root', master_log_file='master-bin.000001', master_log_pos=4;
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FLUSH TABLES WITH READ LOCK;
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include/start_slave.inc
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include/wait_for_slave_param.inc [Seconds_Behind_Master]
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UNLOCK TABLES;
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connection master;
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CREATE TABLE t2 (a INT PRIMARY KEY) ENGINE=InnoDB;
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INSERT INTO t2 VALUES (1);
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connection slave;
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SELECT * FROM t1 ORDER BY a;
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a b
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1 1
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2 2
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3 4
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4 8
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5 16
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SELECT * FROM t2;
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a
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1
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include/stop_slave.inc
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SET GLOBAL slave_parallel_threads=@old_parallel;
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DROP TABLE t1;
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include/start_slave.inc
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connection master;
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DROP TABLE t2;
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include/rpl_end.inc
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