My Oracle Support Banner

False Swap Warning Messages Printed To Alert.log On AIX (Doc ID 1508575.1)

Last updated on OCTOBER 08, 2020

Applies to:

Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
IBM AIX on POWER Systems (64-bit)

Symptoms

There is new warning message in alert.log in 11.2.0.3 similar to

WARNING: Heavy swapping observed on system in last 5 mins.
pct of memory swapped in [2.08%] pct of memory swapped out [0.12%].
Please make sure there is no memory pressure and the SGA and PGA
are configured correctly. Look at DBRM trace file for more details.

On AIX platform this message can be seen even when there is no virtual memory swapping at all.

You may compare the vmstat from AIX level with DBRM trace file entries to see the differences.

Changes

 

Cause

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

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

In this Document
Symptoms
Changes
Cause
Solution
References


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