AWR or STATSPACK Snapshot collection extremely slow in 11gR2
Last updated on MARCH 17, 2018
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 to 126.96.36.199 [Release 11.2 to 12.2]
Information in this document applies to any platform.
Creating AWR or STATSPACK Snapshots may experience extremely poor performance.
Very poor performance while attempting to generate a snapshot for either the AWR ( automatic workload repository ) or Statspack reports.
More specifically this may show as following:
- Very poor insert times on WRH$_TEMPSTATXS or STATS$FILESTATXS
- Cartesian joins for queries used in the generation of the performance report snapshots
None may be known or stated although this performance problem is often associated with a migration to 188.8.131.52 , 184.108.40.206 or 220.127.116.11.
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