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Automatic AWR Snapshots Are Not Happening Intermittently (Doc ID 3073027.1)

Last updated on FEBRUARY 20, 2025

Applies to:

Oracle Database - Enterprise Edition - Version 19.19.0.0.0 and later
Information in this document applies to any platform.

Symptoms

Automatic AWR snapshots were not happening intermittently in some or all of the instances in a RAC database.

Alertlog entries reporting various suspension on MMON slave action and snapshot fail messages:

 

MMON slave (m00*) trace files were showing timeouts on these tables.

WRH$_SYS_TIME_MODEL

WRH$_SQL_PLAN

WRH$_SQL_BIND_METADATA

WRH$_DATAFILE

WRH$_FILESTATXS

 

Changes

None 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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