Database performance affected when flashback is enabled and many new flashback logs are generated (Doc ID 1148760.1)

Last updated on OCTOBER 27, 2016

Applies to:

Oracle Server - Enterprise Edition - Version: 10.2.0.4 and later   [Release: 10.2 and later ]
Information in this document applies to any platform.
***Checked for relevance on 23-Feb-2012***

Symptoms


When flashback is enabled, OLTP type application response times are impacted causing transactions to time out.  Top wait event during this period is 'FLASHBACK BUF FREE BY RVWR'.

During a 30 min test when flashback was enabled, 5 new flashback logs totalling 1.7Gb were generated.

Cause

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