My Oracle Support Banner

How to Lower the HWM for SYSTEM.DEF$_ORIGIN in Multimaster Replication Without Quiescing Replication Groups (Doc ID 738353.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.1 to 11.1.0.6 [Release 9.2 to 11.1]
Information in this document applies to any platform.

Goal

The intent of this document is to give instructions concerning how to lower the Highwater Mark (HWM) of the SYSTEM - owned table DEF$_ORIGIN without having to quiesce any Advanced Replication groups defined on the database.  The SYSTEM.DEF$_ORIGIN table stores information concerning what transactions have been applied at the local site.  At times this table can become quite large, with a resulting large HWM.  Performance can be greatly improved by lowering the HWM.

Solution

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.