Rman Catalog Resync Operation is Very slow at 10G (Doc ID 378234.1)

Last updated on OCTOBER 31, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.2 to 10.2.0.4 [Release 10.2]
Information in this document applies to any platform.
***Checked for relevance on 06-May-2013***


Symptoms

Catalog resyncs are taking a long time to complete.

Debug trace shows the time is being spent in the RMANOUTPUTRESYNC phase.

The problem SQL in the catalog is:

 

SELECT MAX(RSR_KEY)
FROM
RSR WHERE RSR.DBINC_KEY IN (SELECT DBINC_KEY FROM DB WHERE DB.DB_KEY = :B3 )
AND RSR.RSR_SRECID = :B2 AND RSR.RSR_SSTAMP = :B1 AND RSR.RSR_TYPE =
'SESSION'

 

 

Additionally, the size of the ROUT table is very large:  6376845 rows.

Cause

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