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Ora-4020 Deadlock Detected Quiescing Master Master Replication Env. (Doc ID 329781.1)

Last updated on MARCH 12, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 10.1.0.3 to 10.2.0.4 [Release 10.1 to 10.2]
Information in this document applies to any platform.

Symptoms

On quiesce of master group receiving the following error

ORA-4020: deadlock detected while trying to lock object.

 This always shows highly used tables as the ones detected.
This has also happened on generate replication support.

This happens after upgrading
to 10.1.0.2.0 or 10.1.0.3.0

 

Changes

Upgraded the Oracle Database  to 10.1.0.2.0  or 10.1.0.3.0

Cause

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In this Document
Symptoms
Changes
Cause
Solution
 Apply One-off patch for 4329748.
References


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