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EXPDP is Slow While Updating Master Table after Upgrade to (Doc ID 2326998.1)

Last updated on MAY 20, 2021

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
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In, after applying <Patch 21554480> (a merge of multiple Data Pump performance fixes), Data Pump Export (expdp) completes in, say, 13 minutes.  However, after upgrading to, the same expdp takes >2 hours to complete.

(Note:  All fixes in <Patch 21554480> are included in 12.2.)


An Automatic Workload Repository (AWR) report shows:

These show that a lot of time was spent updating the master table.



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