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 Kevin Zheng (KevinZheng_GCS)
PEGA
Director, Software Solutions Engineering
Pegasystems Inc.
US
KevinZheng_GCS Member since 2009 9 posts
PEGA
Posted: February 24, 2015
Last activity: May 21, 2015
Posted: 24 Feb 2015 20:08 EST
Last activity: 21 May 2015 12:32 EDT
Closed

Must-gather for Websphere classloader debugging

Please follow this IBM link: IBM MustGather: Classloader problems for WebSphere Application Server - United States

System Administration
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Posted: 6 years ago
Posted: 21 May 2015 7:12 EDT
Satya Venkata Hari Kumar Alampuru (HARIKUMAR_ALAMPURU)
TATA CONSULTANCY SERVICES
SYSTEM ENGINEER
TATA CONSULTANCY SERVICES
IN

Hi Kevin,

Thanks for sharing this !

Are there any specifc pattern of Problem Cases where the Classloader problems occur for Pega on WebSphere Application Server ? Interested to know about a sample problem case or a sample log which indicates us to go for enabling the Classloader traces.

Thanks in Advance.

- Hari Kumar
Posted: 6 years ago
Posted: 21 May 2015 8:07 EDT
Kevin Zheng (KevinZheng_GCS)
PEGA
Director, Software Solutions Engineering
Pegasystems Inc.
US

For example, if you have a memory leak issue where you want to understand why certain are not marked for garbage collection; or you are troubleshooting the classloading conflict issues in Pega product (e.g., why a specific class is loaded by Websphere but not from the Pega classloader (from the database).
Posted: 6 years ago
Posted: 21 May 2015 12:32 EDT
Kumar (VipinKumar38163630)

Classloading problems can take various forms. You may get noclassdeffoundexception, classcastexception or compilation errors since the loaded class does not have the necessary method for Activity/Library compilation.