[jboss-user] [JBoss Remoting] - Too many thread in Jboss 4.2.2

[Sebastien Degardin]

Sebastien Degardin [http://community.jboss.org/people/sebastiendeg] created the discussion

"Too many thread in Jboss 4.2.2"

To view the discussion, visit: http://community.jboss.org/message/546880#546880

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Hi,

We have many Jboss servers talking to each other using EJB 3.0 (SLSB). 
Now that the servers are getting very busy, we are having problem with Jboss creating too many Threads.
At some point, we have an exception when it can't create native Threads anymore.


It seems to be due to remoting as it does happens when we do load testing from the client.
looking at the jboss web-console, most of the Thread are as follow :

*
*

*Thread: Timer-896496* : priority:5, demon:true, threadId:1114825, threadState:WAITING, lockName:java.util.TaskQueue at 4c8113f8
> java.lang.Object.wait(Native Method)
> java.lang.Object.wait(Object.java:485)
> java.util.TimerThread.mainLoop(Timer.java:483)
> java.util.TimerThread.run(Timer.java:462)
> 
*Thread: Timer-896497* : priority:5, demon:true, threadId:1114826, threadState:WAITING, lockName:java.util.TaskQueue at 6d5199b5

> java.lang.Object.wait(Native Method)
> java.lang.Object.wait(Object.java:485)
> java.util.TimerThread.mainLoop(Timer.java:483)
> java.util.TimerThread.run(Timer.java:462


They are found under the group :


*Thread Group: main* : max priority:10, demon:false
> *Thread: DestroyJavaVM* : priority:5, demon:false, threadId:9, threadState:RUNNABLE, lockName:null
> *Thread Group: jboss* : max priority:10, demon:false



Any idea how we could get rid of these Thread or limit the time they live ?
Thanks.
Sebastien

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