试题详情
- 单项选择题 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
- B
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