Generating a heap dump when running JBoss EAP as a Windows service

Environment

• Red Hat JBoss Enterprise Application Platform (EAP)
  • 8.x
  • 7.x

Issue

• While running JBoss EAP as a Windows Service it is noticed that the utilities like jstack or jconsole are not able to collect the dumps. So is there any alternative?

Resolution

To generate heap dump when running JBoss EAP as a Windows Service users can execute one of below command-line:

C:\..\PSTools>psexec -s jcmd JBOSS_EAP_PID GC.heap_dump -all=true %USERPROFILE%\Desktop\jcmd_dump.hprof

C:\..\PSTools>psexec -s jmap -dump:format=b,file=%USERPROFILE%\Desktop\jmap_heap.hprof JBOSS_EAP_PID

Diagnostic Steps

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1. Users must download PSExec directly from Content from learn.microsoft.com is not included.Microsoft Sysinternals website

2. Run jcmd/jmap in CMD terminal running as administrator

3. Replace JBOSS_EAP_PID with the PID of the JBoss EAP Java process.

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