21.4. JVM debugging tools for z/OS

This section describes three problem analysis tools for the WebSphere for z/OS production environment:

  • Svcdump.jar

  • FindRoots/HeapRoots

  • Dumpviewer GUI and jformat

The JVM sits at the core of the execution environment for WebSphere Application Server and most products that run under the z/OS USS run-time environment. These tools provide a non-IPCS interface to assist with SVC dump analysis, and while not providing the complex granularity of IPCS, will enable you to resolve many issues from the generated data. This can be performed under the z/OS JVM, or alternatively, by transferring the dump to a distributed JVM (either UNIX or Windows) and running the PD tools on these platforms.

The svcdump.jar file enables ...

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