Take Thread Dump for TeamSiteTomcat Server

Hi,

I am using TS/LS 7.1

I need to take a thread dump of the TeamSite Tomcat instance using jstack. I however am unable to identify the JDK directory from where i can run jstack or monitor the jvm using jconsole. I tried the Foundation Library JVM but in vain.

Any pointers on this are welcome.

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sheikh1

Hi,

I am using TS/LS 7.1

I need to take a thread dump of the TeamSite Tomcat instance using jstack. I however am unable to identify the JDK directory from where i can run jstack or monitor the jvm using jconsole. I tried the Foundation Library JVM but in vain.

Any pointers on this are welcome.

Did you tried /usr/Interwoven/TeamSite/tools/java/bin/jconsole?? this one pulls up your apache daemon process, jboss process and might be preview if you have used same java.
For some reason daemon process is not accepting connection from jconsole, it timed out for me. - version 7.1/RHL5

Migrateduser

Hey,

I did try out the Java instance here. the jconsole does not give me any options for inspection except for its own process id. ALso, i tried running a jstack -l pid which keeps giving me an error "Not enough storage is available to process this command". I got this error using the jstack command within the foundation libraries jdk also. it seems i am missing something here.

sheikh1

Hey,

I did try out the Java instance here. the jconsole does not give me any options for inspection except for its own process id. ALso, i tried running a jstack -l pid which keeps giving me an error "Not enough storage is available to process this command". I got this error using the jstack command within the foundation libraries jdk also. it seems i am missing something here.

If you are not seeing any other pid's then it means you are not running on right JVM where your other teamsite processes are running. Try runnning on different jvm.
You can also use jvisualvm to get the threads and classes count and there is a profiler too.
If you are using jrockit jvm on linux you can use this command "kill -3 " to print out your thread dump, you can also pipe your results to a different file rather printing on stdout.
Use kill -e option for sun jvm I didn't tried this option.
You can use your jstack utility to get same results. Check your jvm parameters if you need to increase heap since you getting not enough space exceptions, you can stop and start the process and try immediately if it makes any different.
I use -m option to print out all threads, ex:
/usr/Interwoven/TeamSite/tools/java/bin/jstack -m 1067
Attaching to process ID 1067, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 11.2-b01
Deadlock Detection:

No deadlocks found.
use sudo -u user jstack if you are using a different user to login

mgammon

I don't know if this is helpful for your needs but there is a "jvm_stat" console available in the iw-cc application that has thread logging options:

http://SERVERNAME/iw-cc/command/iw.admin.teamsite.jvm_stat

Migrateduser

Thank you sheikh and mgammon. I will try out these options. These are very helpful pointers!