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[JBPM 5.4] - Transaction / Concurrency problem
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created by <a href="https://community.jboss.org/people/guilherme.telles">Guilherme Telles</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/832169#832169">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi, I'm having some trouble with concurrency, hope you guys can help me</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Here's the stack trace:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>================================================================================================================================</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>15:32:16,379 ERROR [org.drools.persistence.SingleSessionCommandService] (Thread-79) Could not commit session: java.lang.RuntimeException: Unable to commit transaction</p><p>    at org.drools.persistence.jta.JtaTransactionManager.commit(JtaTransactionManager.java:182) [drools-persistence-jpa-5.5.0.Final.jar:5.5.0.Final]</p><p>    at org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:376) [drools-persistence-jpa-5.5.0.Final.jar:5.5.0.Final]</p><p>    at org.drools.command.impl.CommandBasedStatefulKnowledgeSession$1.completeWorkItem(CommandBasedStatefulKnowledgeSession.java:150) [drools-core-5.5.0.Final.jar:5.5.0.Final]</p><p>    at org.jbpm.process.workitem.wsht.AsyncGenericHTWorkItemHandler$GetResultContentResponseHandler.execute(AsyncGenericHTWorkItemHandler.java:302) [jbpm-human-task-core-5.4.0.Final.jar:5.4.0.Final]</p><p>    at org.jbpm.task.service.TaskClientHandler.messageReceived(TaskClientHandler.java:153) [jbpm-human-task-core-5.4.0.Final.jar:5.4.0.Final]</p><p>    at org.jbpm.task.service.hornetq.HornetQTaskClientHandler.messageReceived(HornetQTaskClientHandler.java:56) [jbpm-human-task-hornetq-5.4.0.Final.jar:5.4.0.Final]</p><p>    at org.jbpm.task.service.hornetq.HornetQTaskClientConnector$1.run(HornetQTaskClientConnector.java:122) [jbpm-human-task-hornetq-5.4.0.Final.jar:5.4.0.Final]</p><p>    at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_21]</p><p>Caused by: javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.</p><p>    at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1177)</p><p>    at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:117)</p><p>    at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)</p><p>    at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:167)</p><p>    at org.drools.persistence.jta.JtaTransactionManager.commit(JtaTransactionManager.java:179) [drools-persistence-jpa-5.5.0.Final.jar:5.5.0.Final]</p><p>    ... 7 more</p><p>Caused by: javax.persistence.OptimisticLockException: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.jbpm.persistence.processinstance.ProcessInstanceInfo#1]</p><p>    at org.hibernate.ejb.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:1389) [hibernate-entitymanager-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1307) [hibernate-entitymanager-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1288) [hibernate-entitymanager-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1294) [hibernate-entitymanager-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.ejb.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1480) [hibernate-entitymanager-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:109) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76)</p><p>    at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:273)</p><p>    at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:93)</p><p>    at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:164)</p><p>    at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1165)</p><p>    ... 11 more</p><p>Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.jbpm.persistence.processinstance.ProcessInstanceInfo#1]</p><p>    at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:2365) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3017) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2915) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3244) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:113) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:354) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:276) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1127) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:325) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:104) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]</p><p>    ... 17 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>================================================================================================================================</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm using JBPM 5.4, Jboss AS 7.1.1, Spring 3</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The Knowledge Base it's been kept in another server.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>This is how I start my HornetQTaskServer: </p><p> (Do I really need to start it? I've been trying to connect to the one that's supposed to come with jBPM. But, in that case, even though I can start the process, not a single task is persisted. I can only complete the process if I set the AsyncHornetQHTWorkItemHandler IP to localhost and start the HornetQ locally  )</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>{code}</p><p>     try{</p><p>            TaskService taskService = new TaskService(getEntityManagerFactoryJbpm(), SystemEventListenerFactory.getSystemEventListener());</p><p>            HornetQTaskServer server = new HornetQTaskServer(taskService, "localhost", 5445);</p><p>            if(!server.isRunning()) {</p><p>                Thread thread = new Thread(server);</p><p>                thread.start();</p><p>            }</p><p>        } catch(Exception e) {</p><p>            LOGGER.warn("HornetQ Task Server já iniciado");</p><p>        }</p><p>{code}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>My Environment:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>{code}</p><p>    public Environment getEnvironment() {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        if(environment == null) {</p><p>            LOGGER.info("CREATING NEW ENVIRONMENT");</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            environment = KnowledgeBaseFactory.newEnvironment();</p><p>            environment.set(EnvironmentName.ENTITY_MANAGER_FACTORY, getEntityManagerFactoryJbpm());</p><p>        }</p><p>        return environment;</p><p>    }</p><p>{code}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>How I register my handlers:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>{code}</p><p>public static void registerHandlers(StatefulKnowledgeSession kSession) {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        LOGGER.info("REGISTERING HANDLERS...");</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        final EmailHandler emailHandler = new EmailHandler();</p><p>        final OrcamentoHandler orcamentoHandler = new OrcamentoHandler();</p><p>        final MudarStatusHandler mudarStatusHandler = new MudarStatusHandler();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        kSession.getWorkItemManager().registerWorkItemHandler("notificacao_lider", emailHandler);</p><p>        kSession.getWorkItemManager().registerWorkItemHandler("notificacao_negocio", emailHandler);</p><p>        kSession.getWorkItemManager().registerWorkItemHandler("notificacao_responsavel", emailHandler);</p><p>        kSession.getWorkItemManager().registerWorkItemHandler("modulo_orcamento", orcamentoHandler);</p><p>        kSession.getWorkItemManager().registerWorkItemHandler("muda_status", mudarStatusHandler);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        TaskClient client = new TaskClient(new HornetQTaskClientConnector(UUID.randomUUID().toString(), new HornetQTaskClientHandler(SystemEventListenerFactory.getSystemEventListener())));</p><p>        TaskManager taskManager = new TaskManager();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        AsyncHornetQHTWorkItemHandler htHandler = new AsyncHornetQHTWorkItemHandler(taskClient, kSession, true);</p><p>        htHandler.setPort(5445);</p><p>        htHandler.connect();</p><p>        kSession.getWorkItemManager().registerWorkItemHandler("Human Task", htHandler);</p><p>  }</p><p>{code}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Anyone have any insight? I already searched the whole community, but nothing helped.</p></div>
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