52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
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--echo #
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--echo # BUG28508923 - SETTING THREAD_CACHE_SIZE TO 0 DOES NOT EMPTY THE THREAD CACHE.
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--echo #
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--source include/count_sessions.inc
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SET @saved_thread_cache_size=@@thread_cache_size;
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SET GLOBAL thread_cache_size=5;
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connect(con1, localhost, root,,);
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connect(con2, localhost, root,,);
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connect(con3, localhost, root,,);
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connect(con4, localhost, root,,);
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connect(con5, localhost, root,,);
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disconnect con1;
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disconnect con2;
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disconnect con3;
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disconnect con4;
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disconnect con5;
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connection default;
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# Wait until Threads_cached value is 5.
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let $wait_condition=select count(*)=1 from performance_schema.session_status where VARIABLE_NAME='Threads_cached' and VARIABLE_VALUE=5;
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--source include/wait_condition.inc
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# Now show shrink the cache size to 2.
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SET GLOBAL thread_cache_size = 2;
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# Wait until the thread cache size shrinks to 2.
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let $wait_condition=select count(*)=1 from performance_schema.session_status where VARIABLE_NAME='Threads_cached' and VARIABLE_VALUE=2;
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--source include/wait_condition.inc
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SHOW STATUS LIKE 'Threads_cached';
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# Now disable the thread cache.
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SET GLOBAL thread_cache_size = 0;
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# Wait until the thread cache size is 0.
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let $wait_condition=select count(*)=1 from performance_schema.session_status where VARIABLE_NAME='Threads_cached' and VARIABLE_VALUE=0;
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--source include/wait_condition.inc
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SHOW STATUS LIKE 'Threads_cached';
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# Privilege check
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CREATE USER u1;
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--connect(con1, localhost, u1,'',)
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--error ER_SPECIFIC_ACCESS_DENIED_ERROR
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SET GLOBAL thread_cache_size = 5;
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connection default;
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GRANT SYSTEM_VARIABLES_ADMIN ON *.* TO u1;
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connection con1;
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SET GLOBAL thread_cache_size=5;
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disconnect con1;
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--connection default
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DROP USER u1;
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# Restore the original value of thread cache size.
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SET GLOBAL thread_cache_size=@saved_thread_cache_size;
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