Excessive CF enqueue when performing many parallel NOLOGGING DML (Doc ID 1380939.1)

Last updated on JANUARY 23, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.3 to 11.2.0.2 [Release 10.2 to 11.2]
Information in this document applies to any platform.

Symptoms

You are seeing sessions waiting for 'enq: CF - contention' or
this wait event is appearing in the top 5 wait events in an AWR or statspack report.

Cause

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