Deadlock between 'on commit' refresh session and rewrite session (Doc ID 818105.1)

Last updated on MAY 12, 2017

Applies to:

Oracle Server - Enterprise Edition - Version: 10.2.0.3 to 11.1.0.7 - Release: 10.2 to 11.1
Information in this document applies to any platform.

Symptoms


A lock situation is encountered and the following messages are seen in alert log file:

Sun Nov 18 08:17:30 2007
>>> WAITED TOO LONG FOR A ROW CACHE ENQUEUE LOCK! pid=57
System State dumped to trace file .....

It is noticed that there is a deadlock due to 'ENQ: MS - CONTENTION'.
It is seen in the system dump 'enq: MS - contention' .



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Cause

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