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Workflow WF_CONTROL queue getting 'library cache lock' causes Applications to hang (Doc ID 295016.1)

Last updated on FEBRUARY 05, 2019

Applies to:

Oracle Workflow - Version 11.5.9 to 11.5.10.2 [Release 11.5 to 11.5.10]
Information in this document applies to any platform.
Checked for relevance on 04-OCT-2011


Symptoms

Oracle Applications sessions appear to be hanging.
The Workflow Control Queue Cleanup concurrent process is running.
In the database trace file, one can see a library cache lock held by the WF_CONTROL queue.

Cause

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