[jboss-jira] [JBoss JIRA] Created: (EJBTHREE-1330) EJB timer service should use a thread pool to avoid OOM

[Galder Zamarreno (JIRA)]

EJB timer service should use a thread pool to avoid OOM
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                 Key: EJBTHREE-1330
                 URL: http://jira.jboss.com/jira/browse/EJBTHREE-1330
             Project: EJB 3.0
          Issue Type: Bug
          Components: pool
    Affects Versions: AS 4.2.2.GA
            Reporter: Galder Zamarreno
         Assigned To: Galder Zamarreno
            Priority: Minor


The default EJB timer service used by the EJB3 layer is based on 
org.jboss.ejb3.timerservice.jboss.JBossTimerServiceFactory which delegates 
to the standard org.jboss.ejb.txtimer.EJBTimerService. 

For EJB3 beans using the EJB timer service the thread local pool should not be used. 
Since the current EJB timer service creates a new thread for each timer being created, the 
thread local pool will create a matching instance of the bean for that thread. Thus the number 
of active instances in total can effectively grow unchecked and thus an OOM will occur.

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