QuestionQ47

Troubleshoot post-installation

An administrator noticed that one WebSphere Application Server JVM in the production environment was frequently encountering OutOfMemoryError (OOM). IBM Support advised collecting OOM MustGather data to troubleshoot the problem.

Which two data items would give IBM Support the most useful information for investigating the OOM?

Choose two
Explanation

VerboseGC logs show garbage-collection activity, heap occupancy, and memory-pressure behavior leading up to an OOM. A heapdump*.phd file captures the heap’s object population and retained memory at failure time, enabling analysis of which objects are consuming the Java heap. IBM’s WebSphere OOM guidance identifies verbose GC output and the first heap dump as required diagnostic information.

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