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Gokulnath Kanagaraj (GOKULTEG)
Virtusa Corporation

Virtusa Corporation
US
GOKULTEG Member since 2012 2 posts
Virtusa Corporation
Posted: March 14, 2017
Last activity: March 23, 2017
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Regarding ALERT0021

'ALERT0021' is present in log which indicates that the Data Page size has exceeded 5% of the JVM heap size.
Our application is a memory intensive application and we load the required data onto Data Pages as suggested by Pega. We are trying to optimize our application and wanted to understand the below.
What is the significance of this ALERT and why is the threshold present at 5% ?

I understand this can be changed by modifying <env name="DeclarePages/MemoryUsagePercentLimit" value="5” /> in prconfig.xml . Would like to understand why the default threshold is at 5%. Also, till what percentage of JVM heap size, can Data Page sizes grow ?
Kindly explain. Thanks.

***Moderator Edit: Vidyaranjan | Tagged SRExists ***

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