My Oracle Support Banner

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 19.8.0.0.0 and later
Information in this document applies to any platform.

Symptoms

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.

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.