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A test case was waiting for a fixed number of seconds for a specific state of the slave IO thread to take place. Fixed by waiting in a loop for that specific thread state instead (or timeout).
51 lines
1.4 KiB
Plaintext
51 lines
1.4 KiB
Plaintext
# The slave is started with relay_log_space_limit=10 bytes,
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# to force the deadlock after one event.
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source include/master-slave.inc;
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connection slave;
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stop slave;
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connection master;
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# This will generate a master's binlog > 10 bytes
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create table t1 (a int);
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drop table t1;
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create table t1 (a int);
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drop table t1;
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connection slave;
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reset slave;
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start slave io_thread;
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# Give the I/O thread time to block.
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let $run= 1;
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let $counter= 300;
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while ($run)
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{
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let $io_state= query_get_value("SHOW SLAVE STATUS", Slave_IO_State, 1);
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if (`SELECT '$io_state' = 'Waiting for the slave SQL thread to free enough relay log space'`){
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let $run= 0;
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}
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sleep 0.1;
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if (!$counter){
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--echo "Failed while waiting for slave IO thread block"
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SHOW SLAVE STATUS;
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exit;
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}
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dec $counter;
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}
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sleep 2;
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# A bug caused the I/O thread to refuse stopping.
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stop slave io_thread;
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reset slave;
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start slave;
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# The I/O thread stops filling the relay log when
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# it's >10b. And the SQL thread cannot purge this relay log
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# as purge is done only when the SQL thread switches to another
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# relay log, which does not exist here.
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# So we should have a deadlock.
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# if it is not resolved automatically we'll detect
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# it with master_pos_wait that waits for farther than 1Ob;
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# it will timeout after 10 seconds;
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# also the slave will probably not cooperate to shutdown
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# (as 2 threads are locked)
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select master_pos_wait('master-bin.001',200,6)=-1;
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# End of 4.1 tests
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