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How to get the Java VM Thread Dump for deployed instance
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How to get the Java VM Thread Dump for deployed instance


  • Subject: How to get the Java VM Thread Dump for deployed instance
  • From: Daniel Muller <email@hidden>
  • Date: Fri, 14 Nov 2003 18:55:51 +0100

Hi all,

I'm trying to get the Java VM Thread Dump for deployed instance (OS X Server 10.2 and WO 5.2.1+Java 1.3.1) by sending the signal QUIT (sudo kill -3 xxxx where xxxx is the instance's PID).
I get nothing in the instance log file and WO log files: /var/log/webobjects.log, /var/log/webobjects.err.


I've tried to modify the "SpawnOfWotaskd.sh" file in "/System/Library/WebObjects/JavaApplications/wotaskd.woa/Contents/ Resources" folder:

$@ 1>>/var/log/webobjects.log 2>>/var/log/webobjects.err &
   instead of
$@ 1>/dev/null 2>&1 &

Same result, not trace of thread dump.

I get the trace of thread dump only for development version either in ProjectBuilder Console window or launching the application directly from the Terminal.

Any idea how to get the trace of thread dump of a running instance launch by wotaskd?

Thank you in advance and best regards,
Daniel Muller
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