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5ab5ff08b0
This commit makes replicas crash-safe by default by changing the Using_Gtid value to be Slave_Pos on a fresh slave start and after RESET SLAVE is issued. If the primary server does not support GTIDs (i.e., version < 10), the replica will fall back to Using_Gtid=No on slave start and after RESET SLAVE. The following additional informational messages/warnings are added: 1. When Using_Gtid is automatically changed. That is, if RESET SLAVE reverts Using_Gtid back to Slave_Pos, or Using_Gtid is inferred to No from a CHANGE MASTER TO given with log coordinates without MASTER_USE_GTID. 2. If options are ignored in CHANGE MASTER TO. If CHANGE MASTER TO is given with log coordinates, yet also specifies MASTER_USE_GTID=Slave_Pos, a warning message is given that the log coordinate options are ignored. Additionally, an MTR macro has been added for RESET SLAVE, reset_slave.inc, which provides modes/options for resetting a slave in log coordinate or gtid modes. When in log coordinates mode, the macro will execute CHANGE MASTER TO MASTER_USE_GTID=No after the RESET SLAVE command. When in GTID mode, an extra parameter, reset_slave_keep_gtid_state, can be set to reset or preserve the value of gtid_slave_pos. Reviewed By: =========== Andrei Elkin <andrei.elkin@mariadb.com>
51 lines
1.1 KiB
Text
51 lines
1.1 KiB
Text
########################################################
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# By JBM 2005-02-15 Wrapped to allow reuse of test code#
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########################################################
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-- source include/have_binlog_format_row.inc
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-- source include/master-slave.inc
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# Test if the slave SQL thread can be more than 16K behind the slave
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# I/O thread (> IO_SIZE)
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# we'll use table-level locking to delay slave SQL thread
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eval CREATE TABLE t1 (n INT);
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sync_slave_with_master;
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connection master;
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RESET MASTER;
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connection slave;
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STOP SLAVE;
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--source include/reset_slave.inc
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connection master;
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let $1=5000;
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# Generate 16K of relay log
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disable_query_log;
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while ($1)
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{
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eval INSERT INTO t1 VALUES($1);
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dec $1;
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}
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enable_query_log;
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SELECT COUNT(*) FROM t1;
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save_master_pos;
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# Try to cause a large relay log lag on the slave by locking t1
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connection slave;
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LOCK TABLES t1 READ;
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START SLAVE;
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UNLOCK TABLES;
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sync_with_master;
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SELECT COUNT(*) FROM t1;
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connection master;
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DROP TABLE t1;
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CREATE TABLE t1 (n INT);
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INSERT INTO t1 VALUES(3456);
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sync_slave_with_master;
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SELECT n FROM t1;
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connection master;
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DROP TABLE t1;
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sync_slave_with_master;
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--source include/rpl_end.inc
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