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Deadlock executing TaskService.completeTask()
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created by <a href="http://community.jboss.org/people/narzef">Narciso Mazivila</a> in <i>jBPM Development</i> - <a href="http://community.jboss.org/message/566102#566102">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am being victm of deadlocks when TaskService.completeTask() is executed.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I use jBPM 4.3 with MS SQL SERVER 2005.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Here goes the stack trace:</p><table border="1" cellpadding="3" cellspacing="0" class="jiveBorder" style="border: 1px solid #000000; width: 857px; height: 1686px;"><tbody><tr><th align="center" style="background-color:#6690BC;;border: 1px solid #000000;background-color:#6690BC" valign="middle"><span style="color: #ffffff;"><strong><br/></strong></span></th></tr><tr><td style="border: 1px solid #000000;">org.hibernate.exception.LockAcquisitionException: could not delete: [org.jbpm.pvm.internal.task.SwimlaneImpl#1647413]<br/>    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:82)<br/>    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)<br/>    at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2541)<br/>    at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2697)<br/>    at org.hibernate.action.EntityDeleteAction.execute(EntityDeleteAction.java:74)<br/>    at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)<br/>    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:234)<br/>    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:146)<br/>    at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)<br/>    at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)<br/>    at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)<br/>    at org.jbpm.pvm.internal.tx.HibernateSessionResource.prepare(HibernateSessionResource.java:56)<br/>    at org.jbpm.pvm.internal.tx.StandardTransaction.commit(StandardTransaction.java:107)<br/>    at org.jbpm.pvm.internal.tx.StandardTransaction.complete(StandardTransaction.java:64)<br/>    at org.jbpm.pvm.internal.tx.StandardTransactionInterceptor.execute(StandardTransactionInterceptor.java:61)<br/>    at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53)<br/>    at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40)<br/>    at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)<br/>    at org.jbpm.pvm.internal.svc.SkipInterceptor.execute(SkipInterceptor.java:43)<br/>    at org.jbpm.pvm.internal.svc.TaskServiceImpl.completeTask(TaskServiceImpl.java:96)<br/>    at com.csw.impression.bpm.ExecutionServiceImpl.completeTaskWork(ExecutionServiceImpl.java:192)<br/>    at com.csw.impression.bpm.ExecutionServiceImpl.completeTask(ExecutionServiceImpl.java:306)<br/>    at sun.reflect.GeneratedMethodAccessor520.invoke(Unknown Source)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)<br/>    at java.lang.reflect.Method.invoke(Method.java:597)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:122)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111)<br/>    at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)<br/>    at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)<br/>    at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:95)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.aspects.security.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:83)<br/>    at org.jboss.ejb3.security.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:54)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.aspects.security.RoleBasedAuthorizationInterceptor.invoke(RoleBasedAuthorizationInterceptor.java:166)<br/>    at org.jboss.ejb3.security.RoleBasedAuthorizationInterceptor.invoke(RoleBasedAuthorizationInterceptor.java:115)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)<br/>    at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:110)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:240)<br/>    at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:210)<br/>    at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:84)<br/>    at $Proxy252.completeTask(Unknown Source)<br/>    at com.csw.impression.rendering.component.panel.AbstractPanel.executeOutcome(AbstractPanel.java:686)<br/>    at com.csw.impression.rendering.component.action.OutcomeAction.execute(OutcomeAction.java:141)<br/>    at com.csw.impression.rendering.component.action.event.ExecuteActionEventListener.onEvent(ExecuteActionEventListener.java:49)<br/>    at org.zkoss.zk.ui.impl.EventProcessor.process0(EventProcessor.java:196)<br/>    at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:140)<br/>    at org.zkoss.zk.ui.impl.UiEngineImpl.processEvent(UiEngineImpl.java:1445)<br/>    at org.zkoss.zk.ui.impl.UiEngineImpl.process(UiEngineImpl.java:1229)<br/>    at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1009)<br/>    at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:549)<br/>    at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:441)<br/>    at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:449)<br/>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)<br/>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)<br/>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)<br/>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br/>    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)<br/>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)<br/>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br/>    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)<br/>    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)<br/>    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)<br/>    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)<br/>    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)<br/>    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)<br/>    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)<br/>    at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)<br/>    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)<br/>    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)<br/>    at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:437)<br/>    at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:366)<br/>    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)<br/>    at java.lang.Thread.run(Thread.java:619)<br/>Caused by: java.sql.SQLException: Transaction (Process ID 67) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.<br/>    at net.sourceforge.jtds.jdbc.SQLDiagnostic.addDiagnostic(SQLDiagnostic.java:368)<br/>    at net.sourceforge.jtds.jdbc.TdsCore.tdsErrorToken(TdsCore.java:2820)<br/>    at net.sourceforge.jtds.jdbc.TdsCore.nextToken(TdsCore.java:2258)<br/>    at net.sourceforge.jtds.jdbc.TdsCore.getMoreResults(TdsCore.java:632)<br/>    at net.sourceforge.jtds.jdbc.JtdsStatement.processResults(JtdsStatement.java:584)<br/>    at net.sourceforge.jtds.jdbc.JtdsStatement.executeSQL(JtdsStatement.java:546)<br/>    at net.sourceforge.jtds.jdbc.JtdsPreparedStatement.executeUpdate(JtdsPreparedStatement.java:506)<br/>    at org.jboss.resource.adapter.jdbc.WrappedPreparedStatement.executeUpdate(WrappedPreparedStatement.java:365)<br/>    at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2523)<br/>    ... 87 more</td></tr></tbody></table><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>You can find also the deadlock xdl file attached (open with SQL Server Management Studio).</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Any help please?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks!!!</p></div>
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