How the JVM MBean dumpThreads method works
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WAS exposes a JVM MBean for each process that has methods to create thread dumps, heap dumps, and system dumps. For example, to produce a thread dump on server1, use this wsadmin command (-lang jython):
The dumpThreads functionality is different depending on the operating system:
For any customers that have changed the behavior of the JVM (-Xdump) in how it responds to SIGQUIT/SIGBREAK (i.e. kill -3), then dumpThreads will respond accordingly (unless running z/OS, in which case use wsad
There are also other ways to do this such as HealthCenter, VisualVM, etc.