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32 lines
1 KiB
Text
32 lines
1 KiB
Text
# Check replication of one statement assuming that the engine on the
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# slave is a blackhole engine.
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# Input:
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# $statement Statement to evaluate, it is assumed to change t1
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# 1. Evaluate statement on master, it is assumed to change t1
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# 2. Wait for statement to be processed on slave
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# 3. SELECT from table t1 to see what was written
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# 4. Compare position on slave before executing statement and after
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# executing statement. If difference is >0, then something was
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# written to the binary log on the slave.
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connection slave;
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let $before = query_get_value("SHOW MASTER STATUS", Position, 1);
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--echo [on master]
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connection master;
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eval $statement;
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--echo [on slave]
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sync_slave_with_master;
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--echo # Expect 0
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SELECT COUNT(*) FROM t1;
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let $after = query_get_value("SHOW MASTER STATUS", Position, 1);
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let $something_written = `select $after - $before != 0`;
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if ($something_written) {
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--echo >>> Something was written to binary log <<<
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}
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if (!$something_written) {
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--echo >>> Nothing was written to binary log <<<
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}
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