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Merge feature into 10.2 from feature branch. Delayed replication adds an option CHANGE MASTER TO master_delay=<seconds> Replication will then delay applying events with that many seconds. This creates a replication slave that reflects the state of the master some time in the past. Feature is ported from MySQL source tree. Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
58 lines
1.4 KiB
Text
58 lines
1.4 KiB
Text
include/master-slave.inc
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[connection master]
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connection master;
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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));
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INSERT INTO t1 VALUES (1, "a");
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connection slave;
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include/stop_slave.inc
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CHANGE MASTER TO master_use_gtid=slave_pos;
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SET @old_mode= @@GLOBAL.slave_parallel_mode;
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SET GLOBAL slave_parallel_mode=optimistic;
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SET @old_threads= @@GLOBAL.slave_parallel_threads;
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SET GLOBAL slave_parallel_threads=10;
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connection master;
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INSERT INTO t1 VALUES (2, "b");
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INSERT INTO t1 VALUES (3, "b");
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INSERT INTO t1 VALUES (4, "b");
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SET timestamp= @@timestamp + 24*60*60;
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INSERT INTO t1 VALUES (5, "c");
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INSERT INTO t1 VALUES (6, "c");
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SET timestamp= 0;
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include/save_master_gtid.inc
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connection slave;
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CHANGE MASTER TO master_delay=1;
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include/start_slave.inc
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SELECT MASTER_GTID_WAIT('GTID1');
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MASTER_GTID_WAIT('GTID1')
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0
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SELECT MASTER_GTID_WAIT('GTID2', 2);
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MASTER_GTID_WAIT('GTID2', 2)
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-1
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include/stop_slave.inc
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SELECT * FROM t1 ORDER BY a;
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a b
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1 a
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2 b
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3 b
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4 b
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CHANGE MASTER TO master_delay=0;
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include/start_slave.inc
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include/sync_with_master_gtid.inc
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SELECT * FROM t1 ORDER BY a;
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a b
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1 a
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2 b
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3 b
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4 b
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5 c
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6 c
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connection slave;
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include/stop_slave.inc
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CHANGE MASTER TO master_use_gtid=no, master_delay=0;
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SET GLOBAL slave_parallel_mode=@old_mode;
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SET GLOBAL slave_parallel_threads=@old_threads;
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include/start_slave.inc
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connection master;
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DROP TABLE t1;
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include/rpl_end.inc
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