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54 lines
1.8 KiB
Text
54 lines
1.8 KiB
Text
--source include/not_embedded.inc
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# Test that wait_timeout does not cause connection to be closed, when connection is delayed due to
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# threadpool internal problems, e.g misconfiguration - too few threads and queueing.
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# So if client did not cause wait_timeout, do not report it either.
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# See MDEV-21101 for details.
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# Intentionally misconfigure threadpool to have at most 1 or 2 threads (
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# depends on the implementation). Use minimal wait_timeout, do some slow queries from
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# different connections simultaneously, to force queueing occurs.
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# Verify connections are intact, even if queueing time exceeds wait_timeout
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SELECT
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@@global.wait_timeout, @@global.thread_pool_max_threads, @@global.thread_pool_size,
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@@global.thread_pool_oversubscribe, @@global.thread_pool_stall_limit
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INTO
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@_wait_timeout,@_thread_pool_max_threads,@_thread_pool_size,
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@_thread_pool_oversubscribe,@_thread_pool_stall_limit;
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SET @@global.wait_timeout=1,
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@@global.thread_pool_max_threads=2,
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@@global.thread_pool_size=1,
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@@global.thread_pool_oversubscribe=1,
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@@global.thread_pool_stall_limit=10;
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--connect (c1, localhost, root,,)
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--connect (c2, localhost, root,,)
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--connect (c3, localhost, root,,)
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--connection c1
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--send select sleep(1.1)
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--connection c2
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--send select sleep(1.1)
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--connection c3
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--send select sleep(1.1)
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--connection default
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--send select sleep(1.1)
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--connection c1
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--reap
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--connection c2
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--reap
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--connection c3
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--reap
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--connection default
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--reap
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--disconnect c1
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--disconnect c2
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--disconnect c3
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--connection default
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SET @@global.wait_timeout=@_wait_timeout,
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@@global.thread_pool_max_threads=@_thread_pool_max_threads,
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@@global.thread_pool_size=@_thread_pool_size,
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@@global.thread_pool_oversubscribe=@_thread_pool_oversubscribe,
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@@global.thread_pool_stall_limit=@_thread_pool_stall_limit;
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