DBMS Jobs hangs with Library cache locks in 11gR1 (Doc ID 1604347.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.6 to 11.1.0.7 [Release 11.1]
Information in this document applies to any platform.

Symptoms

After upgrading to 11.1.0.6 or 11.1.0.7 from earlier releases, you observe that the job processes hang with library cache locks.

In v$session_wait you observe that the sessions waiting for library cache lock are job slave processes.

This is specific to dbms job but can be observed even for dbms_scheduler when job_queue_processes > 0.

Changes

Recently upgraded to 11.1.0.6 or 11.1.0.7 

Cause

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