Slow Running User Process And Top Database Wait Event Is 'log file switch (private strand flush incomplete)' (Doc ID 983473.1)

Last updated on JULY 01, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 to 10.2.0.3 [Release 10.2]
Information in this document applies to any platform.
***Checked for relevance on 01-Jul-2016***

Symptoms

Checked for relevance on 31-Oct-2011

A user process is running very slow and the top database wait event is always 'log file switch (private strand flush incomplete)'.

AWR Report shows the following Top 5 Timed Events.

  1. log file switch (private strand flush incomplete)
  2. buffer busy waits
  3. log file sync
  4. db file sequential read
  5. log file switch (checkpoint incomplete)

Cause

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