How to analyse Websphere core*.dmp file and Snap*.trc files?

java websphere-7 coredump analyzer heap-dump
Ayusman picture Ayusman · Sep 9, 2011 · Viewed 35k times · Source

All, I have my application running on websphere app server 7.0. I get some of these core dumps and trace files like

core.20110909.164930.3828.0001.dmp

and

Snap.20110909.164930.3828.0003.trc.

My question is, just like the thread dumps generated by WAS can be opened and analyzed by IBM-Thread Dump Analyzer tool

is there a tool(s) to open the above mentioned files by IBM or any other?

Thanks, Ayusman

Answer

mike prendergast picture mike prendergast · Sep 13, 2011

the core dumps have to be processed by the jextract utility (of the jre that dumped) fromn my webspere root this is ./java/jre/bin/jextract.

The resulting output can then be proccessed by ISA

Snap files are proccessed by the java trace tool ie java com.ibm.jvm.format.TraceFormat [] [options] from http://publib.boulder.ibm.com/infocenter/realtime/v1r0/topic/com.ibm.rt.doc.10/diag/tools/trace_formatter.html for was v6

the output is readable

mike prendergast

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