Thread dump and heap dump in websphere

In general we need thread dump and heap dump mainly to find the Out Of Memory exception


Thread dump:- a snapshot of live running java threads in the application server 


                 KILL -3 <PID>   to generate a thread dump

The other way and in real-time we use

                Java\jdk1.8.0_201\bin\jstack <pid> > file.out

Heap dump:- a snapshot of live running java objects in the heap memory



 1. Click Servers > Application servers in the administrative console navigation tree.
2. Click server_name >Runtime Performance Advisor Configuration.
3. Click the Runtime tab.
4. Select the Enable automatic heap dump collection checkbox.
5. Click OK.
Provided a simple answer. If any doubts regarding it, post a comment.

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