Hi Jason, could you try converting to the jca version of db access and see
if the problem persists? I recently found a race condition in (the jca
versions) of the code that releases connections back to the pool after
transactions complete that was allowing several transactions to access the
same connection. Maybe a similar bug is present in the non-jca code. I'm
hoping to check in my "auto-converting-to-jca" XADatasourceLoader later
today, in case you don't want to try the conversion by hand. (this race fix
is only in rabbit hole).
Thanks
david jencks
On 2001.08.14 19:07:43 -0400 Jason Dillon wrote:
> I was trying to track down a concurrency problem which would show up as
> an
> Oracle deadlock exception. It looks like that exception was happening
> due
> to some fk constraints causing parent tables to lock and such. Any ways,
> after I got that deadlock exception, I got a ton of these session bean
> context errors.
>
> I think that I have fixed the deadlock problem by removing some of the fk
> constraints (which I don't like too much, but it stopped the exception
> from
> being thrown), but I am still getting these errors.
>
> I thought they were caused by the oracle problem, but now I think there
> might be something else going on.
>
> Does anyone have any ideas on why this might happen, and or how I might
> go
> about fixing it? The TX stuff is still a bit of a mystery to me. Any
> help
> would be appreciated.
>
> Below is the log of the exception thrown.
>
> --jason
>
>
> 2001-08-14 15:59:52,726 org.jboss.ejb.plugins.LogInterceptor [Thread Pool
> Worker] ERROR - TRANSACTION ROLLBACK EXCEPTION: Application Error: tried
> to
> enter Stateful bean with different transaction context; nested exception
> is:
> java.rmi.RemoteException: Application Error: tried to enter
> Stateful
> bean with different transaction context
>
> ...
>
> 2001-08-14 15:59:52,842 org.jboss.ejb.plugins.LogInterceptor [Thread Pool
> Worker] ERROR - Detail
> java.rmi.RemoteException: Application Error: tried to enter Stateful bean
> with different transaction context
> at
>
>org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor.invoke(StatefulSessionInstanceInterceptor.java:207)
> at
> org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:97)
> at
> org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:154)
> at
> org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:63)
> at
> org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:168)
> at
> org.jboss.ejb.StatefulSessionContainer.invoke(StatefulSessionContainer.java:354)
> at
>
>org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker.invoke(JRMPContainerInvoker.java:445)
> at
>
>org.jboss.ejb.plugins.jrmp.interfaces.GenericProxy.invokeContainer(GenericProxy.java:339)
> at
>
>org.jboss.ejb.plugins.jrmp.interfaces.StatefulSessionProxy.invoke(StatefulSessionProxy.java:136)
> at $Proxy28.handle(Unknown Source)
> at
>
>com.boldfish.does.job.service.internal.ResponseProcessorEJB.process(ResponseProcessorEJB.java:152)
> at
>
>com.boldfish.ejb.AbstractMessageDrivenBean.onMessage(AbstractMessageDrivenBean.java:132)
> at java.lang.reflect.Method.invoke(Native Method)
> at
>
>org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:410)
> at
>
>org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:79)
> at
> org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:97)
> at
> org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:154)
> at
> org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:63)
> at
> org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:128)
> at
> org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:168)
> at
> org.jboss.ejb.MessageDrivenContainer.invoke(MessageDrivenContainer.java:285)
> at
> org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:165)
> at
>
>org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:644)
> at
>
>org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:290)
> at
> org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:257)
> at org.jboss.mq.SpySession.run(SpySession.java:176)
> at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:177)
> at
> EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:655)
> at java.lang.Thread.run(Thread.java:484)
>
>
>
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