thread_pool_stall_limit

Support CLI: Yes

Support configuration file: Yes

Support dynamic modification: Yes

Scope: global

Parameter type: numeric

Default value: 500

Value range: 10 to 4294967295

This parameter specifies the interval for the timer thread to check the status of a thread group, in milliseconds. If a thread group is identified to be stalled, the thread group wakes up a sleeping thread or creates a new thread. This prevents the problem that a new query cannot be processed because a long query occupies a worker thread for a long time.