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I do have a jenkins instance that is stuck in some kind of endless loop without any visible activity.
I can get the pid of the running process so how do I generate a trace that I can use for a bug report?
I'm running on linux.
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You can use Thread. currentThread(). getStackTrace() . That returns an array of StackTraceElement s that represent the current stack trace of a program.
Using printStackTrace() method − It print the name of the exception, description and complete stack trace including the line where exception occurred. Using toString() method − It prints the name and description of the exception. Using getMessage() method − Mostly used. It prints the description of the exception.
Simply put, a stack trace is a representation of a call stack at a certain point in time, with each element representing a method invocation. The stack trace contains all invocations from the start of a thread until the point it's generated. This is usually a position at which an exception takes place.
Try with jstack. It'll give you a full list of what your threads are doing. All it needs is the process pid.
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