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DataPump Export Is Slow When CURSOR_SHARING=FORCE And _OPTIM_PEEK_USER_BINDS=FALSE (Doc ID 2348095.1)

Last updated on JANUARY 16, 2020

Applies to:

Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

NOTE: The document content below, the user information and data used represents fictitious data from the Oracle sample schema(s) or Public Documentation delivered with an Oracle database product. Any similarity to actual persons, living or dead, is purely coincidental and not intended in any manner.

Expdp is very slow when cursor_sharing is set to force and _optim_peek_user_binds is set to false.

As one can be seen from 10046 trace, most of time is consumed on SQLs similar to:

Changes

The following parameters are set at database level:

cursor_sharing=force
and
_optim_peek_user_binds=false

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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