Thread Dump / Heap Dump

 

Thread Dump

Command: kill -QUIT <java pid>

 - Use http://fastthread.io/ to analyze the output


Heap Dump


Command : jmap -dump:format=b,file=<file-path> <pid> 

Eg: /opt/perfMon/java/bin ./jmap -dump:live,format=b,file=/opt/xxx/heapdump.hrof 10759 

- Use the "Eclipse Memory Analyzer" (MAT) to load the heap dump and analyze further


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