problem getting thread dump while JBoss AS is starting up

[tamal24]

Hi,

I am newbie in Jboss AS. I need to take the thread dump while Jboss is starting up.

I have consulted the https://community.jboss.org/wiki/ThreadDump

And following the

Signal the JVM to print out a StackTrace approach.

Modified the run.sh to put the thread dump on $JBOSS_HOME/server/bin/jboss.trace file.

while server is being started I am doing ps -ef | grep jboss to find jboss pid. And then I am doing kill -3 pid to print stack trace.

But the stack trace is not coming into jboss.trace file. It only having content same like server.log.

Please let me know what I am doing wrong. run.sh and jboss.trace is attached here.

JBoss AS version is 5.1. Java version is 1.6.0_26. OS version is SunOS 5.1

[wdfink]

how do you start run.sh?

For me it works if I use the original run.sh@Linux and start 'bin/run.sh >myfile'.

Do you see the thread dump still in the console?

[rhusar]

Would jstack tool help?

[tamal24]

Hi,

Thanks for the reply.

Actually I do not run run.sh. I just do ./jboss.sh start from $JBOSS_HOME/bin/

I thought it inturn runs run.sh

Is it not? because when I run ./jboss.sh start from $JBOSS_HOME/bin/ the server starts.

And while it is starting I am giving kill -3 <pid> when it got stucks in between. I need the stack trace to proceed further.

[tamal24]

Yes, I also tried jstack but getting the below error :

[root]# jstack 26076 >> /opt/jbosstrace.log

26076: Unable to open door: target process not responding or HotSpot VM not loaded

The -F option can be used when the target process is not responding

[root]# jstack -l 26076 >> /opt/jbosstrace.log

26076: Unable to open door: target process not responding or HotSpot VM not loaded

The -F option can be used when the target process is not responding

[root]# jstack -F 26076 >> /opt/jbosstrace.log

Attaching to process ID 26076, please wait...

Error attaching to process: Did not find libthread in target process/core!