單項(xiàng)選擇題

Which statement is true about the log-output variable?（）

A.It is a static variable and can be set only at MySQL server startup
B.It enables and starts the General Query Log
C.It sets the target location for the binary logs generated by the MySQL sever
D.It specifies output destinations for the slow and General Query logs

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單項(xiàng)選擇題

You are investigating the performance of the server and see the following information: Events_waits_summary_global_by_event_name in the performance schema shows that the wait/synch/mutex/sql/LOCK_table_cache event is dominating other wait events. The table_open_cache_overflows status variable is 0.
Which action should be taken to remove the performance bottleneck described here?（）

A.Increase the value of table_definition_cache
B.Increase the value of table_open_cache_instances
C.Decrease the value of table_open_cache_instances
D.Increase the value of table_open_cache
E.Decrease the value of table_definition_cache
F.Decrease the value of table_open_cache

多項(xiàng)選擇題

Which two statements are true about setting the per-thread buffers higher than required?（）

A.More memory per thread is beneficial in all scenarios
B.It causes increased overhead due to initial memory allocation
C.It can affect system stability during peak load times, due to swapping
D.It requires increasing the thread_cache_size variable

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Which statement is true about the log-output variable?（）

你可能感興趣的試題

Which two statements are true about setting the per-thread buffers higher than required?（）

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