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High wait on "enq: JG - queue lock" event (Doc ID 2776539.1)

Last updated on MAY 16, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


Hang Analysis shows Job queue processes Jnnn and Job Queue Coordinator Process CJQ0 mostly waiting on "enq: JG - queue lock" and so as AWR report top wait event.

Customer also has many jobs in job single job queue.


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