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Enq: MS - Contention When Using Timestamp-based Mview Log (Doc ID 2555801.1)

Last updated on OCTOBER 16, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.

Symptoms

Mview is using "Timestamp-based Mview Log", and occasionally lots of select and insert statement are blocked by "Enq: MS - Contention" when J000 process is refreshing the MVIEW, the session held MS enqueue is performing below SQL statement:

 

Cause

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In this Document
Symptoms
Cause
Solution
References


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