How to analyze the main * .dmp Websphere files and Snap * .trc files?

Question

That's it. I have an application running on websphere 7.0 application server. 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 thread dumps generated by WAS can be opened and analyzed using IBM-Thread Dump Analyzer

is there any tool to open the aforementioned files by IBM or any other?

Thanks Ayusman

Answer 1

core dumps must be handled by the jextract utility (from the jre that is dumped) from my webspere root of this. / java / jre / bin / jextract.

The result can be achieved using ISA.

Binding files are processed by the java trace tool, i.e. 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

Answer 2

Eclipse Memory Analyzer is a great tool for analyzing the * .dmp kernel (and portable heaps, i.e. .phd files). To read these Websphere Dumps, you need to install an additional plugin called IBM Diagnostic Tool Framework for Java ( Refresh Site ).

Before trying to open large dumps, do not forget to increase the size of the heap of the tool by changing MemoryAnalyzer.ini and adding / changing the line

-Xmx4096m

Adjust this number according to your needs.