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Concurrently IMPDP Hang On 'row cache lock' (DC_PROPS) (Doc ID 2417963.1)

Last updated on APRIL 24, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 to 12.2.0.1 [Release 12.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata 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.

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.

When multiple sessions concurrently are performing impdp, all of data pump master processes are stuck and waiting on 'row cache lock'. The hang can't be resolved automatically. In our case, the issue only can be reproduced in RAC env.

Changes

Multiple IMPDP sessions run concurrently.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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