I would have thought the container should manage this. Anyway it is an
intermittent problem. Ie doesn't always happen. Seems to ocurr under heavy
(concurrent) load.
Simon.
----- Original Message -----
From: "Ishpal" <[EMAIL PROTECTED]>
To: "Orion-Interest" <[EMAIL PROTECTED]>
Sent: Friday, September 15, 2000 8:18 PM
Subject: Re: HELP: Cannot understand DeadLock
> Hi,
>
> May be u r not committing the changes to the database...
> i.e. ur code might be missing connection.commit() before u close the
> connection to the database....
>
> -- may be this helps..
>
> bye,
> Ishpal
>
> > Simon Harris wrote:
> >
> > Here is a trace from the log file. I don't understand how there can be
> > an error in ejbPassivate() when I have no code in this method, and how
> > do I end up with a deadlock wherby thread 6 is waiting for....thread
> > 6!???
> >
> > Any clues anyone?
> >
> > 15/09/00 10:40 Error in bean cats.ejb.Change: Error loading state
> > javax.ejb.NoSuchEntityException: Load failed for Change 1
> > at cats.change.ChangeDAO.load(ChangeDAO.java:197)
> > at cats.change.ChangeEJB.ejbLoad(ChangeEJB.java:1073)
> > at
> >
IChange_EntityBeanWrapper6.loadState(IChange_EntityBeanWrapper6.java:8734)
> > at com.evermind.server.ejb.EntityEJBObject.endTransaction(JAX)
> > at com.evermind.server.ApplicationServerTransaction.am6(JAX)
> > at com.evermind.server.ApplicationServerTransaction.commit(JAX)
> > at com.evermind.server.ApplicationServerTransaction.end(JAX)
> > at
> >
IGateway_StatelessSessionBeanWrapper10.handleMessage(IGateway_StatelessSessi
onBeanWrapper10.java:184)
> > at java.lang.reflect.Method.invoke(Native Method)
> > at com.evermind.server.rmi.bd.run(JAX)
> > at com.evermind.server.rmi.bb.hw(JAX)
> > at com.evermind.server.rmi.bb.run(JAX)
> > at com.evermind.util.f.run(JAX)
> > 15/09/00 10:40 Error in bean cats.ejb.Change: Error in ejbPassivate
> > com.evermind.server.DeadlockException: Deadlock detected: thread 6 is
> > waiting for resource entity Change 1 held by thread 6
> > at com.evermind.server.ejb.AbstractEJBObject.startCall(JAX)
> > at com.evermind.server.ejb.EntityEJBObject.removeFromCache(JAX)
> > at com.evermind.server.ejb.EntityEJBObject.endTransaction(JAX)
> > at com.evermind.server.ApplicationServerTransaction.am6(JAX)
> > at com.evermind.server.ApplicationServerTransaction.commit(JAX)
> > at com.evermind.server.ApplicationServerTransaction.end(JAX)
> > at
> >
IGateway_StatelessSessionBeanWrapper10.handleMessage(IGateway_StatelessSessi
onBeanWrapper10.java:184)
> > at java.lang.reflect.Method.invoke(Native Method)
> > at com.evermind.server.rmi.bd.run(JAX)
> > at com.evermind.server.rmi.bb.hw(JAX)
> > at com.evermind.server.rmi.bb.run(JAX)
> > at com.evermind.util.f.run(JAX)
> > 15/09/00 10:40 Error in bean cats.ejb.Change: Error while delisting
> > bean from TX
> > com.evermind.transaction.MarshallingXAException
> > at com.evermind.server.ejb.EntityEJBObject.endTransaction(JAX)
> > at com.evermind.server.ApplicationServerTransaction.am6(JAX)
> > at com.evermind.server.ApplicationServerTransaction.commit(JAX)
> > at com.evermind.server.ApplicationServerTransaction.end(JAX)
> > at
> >
IGateway_StatelessSessionBeanWrapper10.handleMessage(IGateway_StatelessSessi
onBeanWrapper10.java:184)
> > at java.lang.reflect.Method.invoke(Native Method)
> > at com.evermind.server.rmi.bd.run(JAX)
> > at com.evermind.server.rmi.bb.hw(JAX)
> > at com.evermind.server.rmi.bb.run(JAX)
> > at com.evermind.util.f.run(JAX)
> > Nested exception is:
> > javax.ejb.NoSuchEntityException: Load failed for Change 1
> > at cats.change.ChangeDAO.load(ChangeDAO.java:197)
> > at cats.change.ChangeEJB.ejbLoad(ChangeEJB.java:1073)
> > at
> >
IChange_EntityBeanWrapper6.loadState(IChange_EntityBeanWrapper6.java:8734)
> > at com.evermind.server.ejb.EntityEJBObject.endTransaction(JAX)
> > at com.evermind.server.ApplicationServerTransaction.am6(JAX)
> > at com.evermind.server.ApplicationServerTransaction.commit(JAX)
> > at com.evermind.server.ApplicationServerTransaction.end(JAX)
> > at
> >
IGateway_StatelessSessionBeanWrapper10.handleMessage(IGateway_StatelessSessi
onBeanWrapper10.java:184)
> > at java.lang.reflect.Method.invoke(Native Method)
> > at com.evermind.server.rmi.bd.run(JAX)
> > at com.evermind.server.rmi.bb.hw(JAX)
> > at com.evermind.server.rmi.bb.run(JAX)
> > at com.evermind.util.f.run(JAX)
>
>
