EXPDP Is Slow While Updating Master Table After Upgrade To 12.2.0.1

(Doc ID 2326998.1)

Last updated on NOVEMBER 13, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 to 12.2.0.1 [Release 12.2]
Information in this document applies to any platform.

Symptoms

 
In 12.1.0.2, after applying the patch 21554480 (merge of multiple Datapump performance fixes) the following export will consume 13 Minutes:

 

So, this shows very high time was being consumed while updating master table.

Cause

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