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84da20e658
This is actually an existing problem in the old binlog implementation, and this patch is applicable to old binlog also. The problem is that RESET MASTER can run concurrently with binlog dump threads / connected slaves. This will remove the binlog from under the feet of the reader, which can cause all sorts of strange behaviour. This patch fixes the problem by disallowing to run RESET MASTER when dump threads (or other RESET MASTER or SHOW BINARY LOGS) are running. An error is thrown in this case, user must stop slaves and/or kill dump threads to make the RESET MASTER go through. A slave that connects in the middle of RESET MASTER will wait for it to complete. Fix a lot of test cases to kill any lingering dump threads before doing RESET MASTER, mostly just by sourcing include/kill_binlog_dump_threads.inc. Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
89 lines
2.4 KiB
SQL
89 lines
2.4 KiB
SQL
#############################################################
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# Author: Rafal
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# Date: 2007-08-20
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# based on rpl_multi_engine3.inc
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#############################################################
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connection slave;
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STOP SLAVE;
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RESET SLAVE;
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connection master;
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--source include/kill_binlog_dump_threads.inc
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RESET MASTER;
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connection slave;
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START SLAVE;
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--echo --- Populate t1 with data ---
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connection master;
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--disable_query_log
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INSERT INTO t1 VALUES(42,1,'Testing MySQL databases is a cool ',
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'Must make it bug free for the customer',
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654321.4321,15.21,0,1965,"1905-11-14");
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INSERT INTO t1 VALUES(2,1,'Testing MySQL databases is a cool ',
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'Must make it bug free for the customer',
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654321.4321,15.21,0,1965,"1965-11-14");
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INSERT INTO t1 VALUES(4,1,'Testing MySQL databases is a cool ',
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'Must make it bug free for the customer',
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654321.4321,15.21,0,1965,"1985-11-14");
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INSERT INTO t1 VALUES(142,1,'Testing MySQL databases is a cool ',
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'Must make it bug free for the customer',
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654321.4321,15.21,0,1965,"1995-11-14");
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INSERT INTO t1 VALUES(412,1,'Testing MySQL databases is a cool ',
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'Must make it bug free for the customer',
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654321.4321,15.21,0,1965,"2005-11-14");
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--enable_query_log
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--echo --- Select from t1 on master ---
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select *
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from t1
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order by id;
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sync_slave_with_master;
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--echo --- Select from t1 on slave ---
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select *
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from t1
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order by id;
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--echo --- Perform basic operation on master ---
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--echo --- and ensure replicated correctly ---
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connection master;
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--echo --- Update t1 on master --
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UPDATE t1 SET b1 = 0, bc='updated', t="2006-02-22"
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WHERE id < 100
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ORDER BY id;
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--echo --- Check the update on master ---
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SELECT *
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FROM t1
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WHERE id < 100
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ORDER BY id;
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# Must give injector thread a little time to get update
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# into the binlog other wise we will miss the update.
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sync_slave_with_master;
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--echo --- Check Update on slave ---
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SELECT *
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FROM t1
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WHERE id < 100
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ORDER BY id;
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connection master;
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--echo --- Remove a record from t1 on master ---
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DELETE FROM t1 WHERE id = 412;
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--echo --- Show current count on master for t1 ---
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SELECT COUNT(*) FROM t1;
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sync_slave_with_master;
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--echo --- Show current count on slave for t1 ---
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SELECT COUNT(*) FROM t1;
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connection master;
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TRUNCATE TABLE t1;
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sync_slave_with_master;
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connection master;
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