[jboss-user] [JBoss Cache] - EvictionTimer Thread disapears with no log - nodeEventQueue_ growth to 100%

[Redbox Capgemini]

Redbox Capgemini [http://community.jboss.org/people/redbox] created the discussion

"EvictionTimer Thread disapears with no log - nodeEventQueue_ growth to 100%"

To view the discussion, visit: http://community.jboss.org/message/573426#573426

--------------------------------------------------------------
Hi,

It's been two weeks that I have a problem with the jboss cache library.

I don't know why but it seems that one of my *EvictionTimer's Thread* just disapears without logging anything.
Normally, this thread has to empty an nodeEventQueue_ (BoundedLinkedQueue class) every N seconds.
This queue reaches 100% occupation (static int *200 000*) and then, all the threads of my application are *blocked* due to the fact that one thread tries to put an event in this already full queue and is stuck in the *Timed_Waiting* status.

This things appears several time per day, I can see that the thread is working by checking his log and sometimes, it just stops logging and if I do a Thread Dump, the thread is no more in the Thread Dump. I have noticed that each day I have the problem, this is always the  same thread that disapears (in my cas Timer-10).

I've tried to tune my log4j to log some INFO and WARN but I didn't get anything interesting so far.
I've tried to put a Try Catch (RunTimeException) in the Run() method of  the EvictionTimerTask but it didn't catch anything.


Stack of the thread that wants to put an event in this full queue :

Thread: http-0.0.0.0-8080-4 : priority:5, demon:true, threadId:1800, threadState:WAITING, lockName:EDU.oswego.cs.dl.util.concurrent.BoundedLinkedQueue at 249c4a

                java.lang.Object.wait(Native Method)
                java.lang.Object.wait(Object.java:485)
                EDU.oswego.cs.dl.util.concurrent.BoundedLinkedQueue.put(BoundedLinkedQueue.java:303)
                org.jboss.cache.eviction.Region.putNodeEvent(Region.java:141)
                org.jboss.cache.interceptors.EvictionInterceptor.doEventUpdatesOnRegionManager(EvictionInterceptor.java:149)
                org.jboss.cache.interceptors.EvictionInterceptor.updateNode(EvictionInterceptor.java:122)
                org.jboss.cache.interceptors.EvictionInterceptor.invoke(EvictionInterceptor.java:97)
                org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:68)
                org.jboss.cache.interceptors.PessimisticLockInterceptor.invoke(PessimisticLockInterceptor.java:206)
                org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:68)
                org.jboss.cache.interceptors.UnlockInterceptor.invoke(UnlockInterceptor.java:32)
                org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:68)
                org.jboss.cache.interceptors.TxInterceptor.handleNonTxMethod(TxInterceptor.java:379)
                org.jboss.cache.interceptors.TxInterceptor.invoke(TxInterceptor.java:174)
                org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:68)
                org.jboss.cache.interceptors.CacheMgmtInterceptor.invoke(CacheMgmtInterceptor.java:138)
                org.jboss.cache.TreeCache.invokeMethod(TreeCache.java:5919)

Do you have any ideas why the EvictionTimer Thread just stop working ?

*Jboss : 4.2.3 GA*
--------------------------------------------------------------

Reply to this message by going to Community
[http://community.jboss.org/message/573426#573426]

Start a new discussion in JBoss Cache at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2052]

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/jboss-user/attachments/20101129/b3dfbaa2/attachment.html