Server Timeout during 2 phase commit with MQSeries 5.2 , oracle 8i , bea6.0

Question

          My application tests 2 PC commit using Oracle 8i and MQSeries
          JMS as two resources and BEA Weblogic 6.0 as the resource manager
          1. I have a Java Application which writes a message onto a
          MQSeries Queue
          2. The Application then invokes the EJB
          3. The Bean starts a transaction
          4. The bean now tries to retrieve the message put on the
          MQSeries queue by the Java Application within the transaction (At this point
          the message disappears from the queue and i am able to see it thru MQSeries explorer)
          5. It then calls a method on another bean
          6. This method performs two Database updates
          7. After return the TprocessBean writes a new message to the queue
          8. The transaction ends
          Now steps 4 to 7 are participating in the transaction. If at
          all anything goes wrong in step 4, step 6 or step 7 then the
          transaction should be rolled back. It means that
          a) The database transactions should be rolled back
          b) The message should return back to the queue
          The transaction spans two resources that is MQSeries and oracle 8i
          When i issue a rollback() on getting an exception, I am getting the database
          transactions to rollback, but the server timesout while rolling back the MQseries
          read transaction i.e. the message that was read within this transaction is not
          visible on the queue
          However when i shut down weblogic, then that message returns back to the queue.
          The timeout exception that i get is
          EJB Exception caught - Rolling back Transactionjavax.ejb.EJBException
          javax.transaction.SystemException: Timeout during rollback processing
          at weblogic.transaction.internal.ServerTransactionImpl.rollback(ServerTransactionImpl.java:2
          80)
          at weblogic.transaction.internal.TransactionManagerImpl.rollback(TransactionManagerImpl.java
          :229)
          at myexamples.jms.tbean.TProcessBean.processJMSMessage(TProcessBean.java:117)
          at myexamples.jms.tbean.TProcessBeanImpl.processJMSMessage(TProcessBeanImpl.java:130)
          at myexamples.jms.tbean.TProcessBeanEOImpl.processJMSMessage(TProcessBeanEOImpl.java:68)
          at myexamples.jms.tbean.TProcessBeanEOImpl_WLSkel.invoke(TProcessBeanEOImpl_WLSkel.java:125)
          at weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.java:373)
          at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:128)
          at weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.java:237)
          at weblogic.rmi.internal.BasicRequestHandler.handleRequest(BasicRequestHandler.java:118)
          at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:17)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          could not rollback....javax.transaction.SystemException: Timeout during rollback
          processing
          Context for InXMLProcess bean is =weblogic.ejb20.internal.SessionEJBContextImpl@201f91
          

Answer 1

          Did you enlist the MQSeries XAResource with the transaction via either static or
          dynamic enlistment?
          Regards,
          Priscilla
          "Anshuman" <[email protected]> wrote:
          >
          > JMS as two resources and BEA Weblogic 6.0 as the resource manager
          >
          > 1. I have a Java Application which writes a message onto a
          > MQSeries Queue
          > 2. The Application then invokes the EJB
          > 3. The Bean starts a transaction
          > 4. The bean now tries to retrieve the message put on the
          > MQSeries queue by the Java Application within the transaction (At this
          >point
          >the message disappears from the queue and i am able to see it thru MQSeries
          >explorer)
          > 5. It then calls a method on another bean
          > 6. This method performs two Database updates
          > 7. After return the TprocessBean writes a new message to the queue
          > 8. The transaction ends
          >
          > Now steps 4 to 7 are participating in the transaction. If at
          > all anything goes wrong in step 4, step 6 or step 7 then the
          > transaction should be rolled back. It means that
          >a) The database transactions should be rolled back
          >b) The message should return back to the queue
          >The transaction spans two resources that is MQSeries and oracle 8i
          >
          > When i issue a rollback() on getting an exception, I am getting the
          >database
          >transactions to rollback, but the server timesout while rolling back
          >the MQseries
          >read transaction i.e. the message that was read within this transaction
          >is not
          >visible on the queue
          >
          >
          >However when i shut down weblogic, then that message returns back to
          >the queue.
          >
          >
          >The timeout exception that i get is
          >
          >EJB Exception caught - Rolling back Transactionjavax.ejb.EJBException
          >javax.transaction.SystemException: Timeout during rollback processing
          > at weblogic.transaction.internal.ServerTransactionImpl.rollback(ServerTransactionImpl.java:2
          >80)
          > at weblogic.transaction.internal.TransactionManagerImpl.rollback(TransactionManagerImpl.java
          >:229)
          > at myexamples.jms.tbean.TProcessBean.processJMSMessage(TProcessBean.java:117)
          > at myexamples.jms.tbean.TProcessBeanImpl.processJMSMessage(TProcessBeanImpl.java:130)
          > at myexamples.jms.tbean.TProcessBeanEOImpl.processJMSMessage(TProcessBeanEOImpl.java:68)
          > at myexamples.jms.tbean.TProcessBeanEOImpl_WLSkel.invoke(TProcessBeanEOImpl_WLSkel.java:125)
          >
          > at weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.java:373)
          > at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:128)
          > at weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.java:237)
          > at weblogic.rmi.internal.BasicRequestHandler.handleRequest(BasicRequestHandler.java:118)
          > at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:17)
          > at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          >could not rollback....javax.transaction.SystemException: Timeout during
          >rollback
          >processing
          >Context for InXMLProcess bean is =weblogic.ejb20.internal.SessionEJBContextImpl@201f91