[jboss-user] [jBPM] - Connection TimeOut while getting assigned tasks

[Prashanth Karnam]

Prashanth Karnam [https://community.jboss.org/people/pras_karnam] created the discussion

"Connection TimeOut while getting assigned tasks"

To view the discussion, visit: https://community.jboss.org/message/648811#648811

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Hi All,

   We are using the BlockingSummaryTaskHandler to get assigned tasks and we are getting the following timeout errors while fetching results.This is very critical , can anyone please help on this



48322772 26/01 08:27:43,710[http-8082-7] INFO emirates.sds.wf.exit  - Exit [CTaskClient] CTaskClient method
Hibernate: select task0_.id as col_0_0_, task0_.processInstanceId as col_1_0_, names5_.text as col_2_0_, subjects3_.text as col_3_0_, descriptio4_.text as col_4_0_, task0_.status as col_5_0_, task0_.priority as col_6_0_, task0_.skipable as col_7_0_, task0_.actualOwner_id as col_8_0_, task0_.createdBy_id as col_9_0_, task0_.createdOn as col_10_0_, task0_.activationTime as col_11_0_, task0_.expirationTime as col_12_0_, task0_.processId as col_13_0_, task0_.processSessionId as col_14_0_ from Task task0_ left outer join OrganizationalEntity user1_ on task0_.createdBy_id=user1_.id left outer join OrganizationalEntity user2_ on task0_.actualOwner_id=user2_.id left outer join I18NText subjects3_ on task0_.id=subjects3_.Task_Subjects_Id left outer join I18NText descriptio4_ on task0_.id=descriptio4_.Task_Descriptions_Id left outer join I18NText names5_ on task0_.id=names5_.Task_Names_Id, OrganizationalEntity organizati6_ where organizati6_.id=? and (organizati6_.id in (select potentialo9_.entity_id from PeopleAssignments_PotOwners potentialo9_ where task0_.id=potentialo9_.task_id)) and (names5_.language=? or (select count(names10_.Task_Names_Id) from I18NText names10_ where task0_.id=names10_.Task_Names_Id)=0) and (subjects3_.language=? or (select count(subjects11_.Task_Subjects_Id) from I18NText subjects11_ where task0_.id=subjects11_.Task_Subjects_Id)=0) and (descriptio4_.language=? or (select count(descriptio12_.Task_Descriptions_Id) from I18NText descriptio12_ where task0_.id=descriptio12_.Task_Descriptions_Id)=0) and (task0_.expirationTime is null)
48332776 26/01 08:27:53,714[http-8082-7] ERROR emirates.sds.wf.error  - [CWorkflowDesignerMBean]  method : getAssignedTasks:*Timeout : unable to retrieve results trace : java.lang.RuntimeException: Timeout : unable to retrieve results*
1. *java.lang.RuntimeException: Timeout : unable to retrieve results*
            at org.jbpm.task.service.responsehandlers.BlockingTaskSummaryResponseHandler.getResults(BlockingTaskSummaryResponseHandler.java:41)
            at com.emirates.sds.workflow.mbean.CWorkflowDesignerMBean.getAssignedTasks(CWorkflowDesignerMBean.java:1592)
            at com.emirates.sds.workflow.mbean.CWorkflowDesignerMBean.getTasks(CWorkflowDesignerMBean.java:2921)
            at sun.reflect.GeneratedMethodAccessor112.invoke(Unknown Source)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:597)
            at javax.el.BeanELResolver.getValue(BeanELResolver.java:62)
            at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)
            at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:71)
            at org.apache.el.parser.AstValue.getValue(AstValue.java:118)
            at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
            at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
            at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:190)
            at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:178)
            at javax.faces.component.UIData.getValue(UIData.java:554)
            at org.ajax4jsf.component.UIDataAdaptorBase.getValue(UIDataAdaptorBase.java:1647)
            at org.ajax4jsf.component.SequenceDataAdaptor.getDataModel(SequenceDataAdaptor.java:65)
            at org.richfaces.component.UIExtendedDataTable.resetDataModel(UIExtendedDataTable.java:390)
            at org.ajax4jsf.component.UIDataAdaptorBase.beforeRenderResponse(UIDataAdaptorBase.java:1656)
            at org.richfaces.component.UIExtendedDataTable.beforeRenderResponse(UIExtendedDataTable.java:417)
            at org.ajax4jsf.component.RenderPhaseUIDataAdaptorVisitor.beforeComponent(RenderPhaseUIDataAdaptorVisitor.java:44)
            at org.richfaces.event.RenderPhaseComponentListener.processComponents(RenderPhaseComponentListener.java:47)
            at org.richfaces.event.RenderPhaseComponentListener.processComponents(RenderPhaseComponentListener.java:55)
            at org.richfaces.event.RenderPhaseComponentListener.processComponents(RenderPhaseComponentListener.java:55)
            at org.richfaces.event.RenderPhaseComponentListener.processComponents(RenderPhaseComponentListener.java:55)
            at org.richfaces.event.RenderPhaseComponentListener.beforePhase(RenderPhaseComponentListener.java:71)
            at org.ajax4jsf.component.AjaxViewRoot.processPhaseListeners(AjaxViewRoot.java:188)
            at org.ajax4jsf.component.AjaxViewRoot.encodeBegin(AjaxViewRoot.java:510)
            at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1641)
            at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
            at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100)
            at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176)
            at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:117)
            at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
            at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:135)
            at javax.faces.webapp.FacesServlet.service(FacesServlet.java:309)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
            at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206)
            at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
            at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388)
            at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
            at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:349)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
            at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
            at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
            at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
            at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
            at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
            at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
            at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
            at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
            at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
            at java.lang.Thread.run(Thread.java:662)
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[gardellajp]

gardellajp [https://community.jboss.org/people/gardellajp] created the discussion

"Re: Connection TimeOut while getting assigned tasks"

To view the discussion, visit: https://community.jboss.org/message/648841#648841

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Hi,

Are you using Apache Mina Server as Human Task Service?. It's seem that you can not connect to it. Check if it is up or other communications problems.

Juan
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[jena74]

jena74 [https://community.jboss.org/people/jena74] created the discussion

"Re: Connection TimeOut while getting assigned tasks"

To view the discussion, visit: https://community.jboss.org/message/739237#739237

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Hi,

Did you succeed in solving this issue please?
Because today I am facing the same and I don't know how to solve it.
Thank you.

Jena
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[Maciej Swiderski]

Maciej Swiderski [https://community.jboss.org/people/swiderski.maciej] created the discussion

"Re: Connection TimeOut while getting assigned tasks"

To view the discussion, visit: https://community.jboss.org/message/739294#739294

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Jena, that usually means that human task server stopped responding. Most likley restart of ht server will help with this but if you encounter it more there will be a need to trace why the ht server fails. So more description of your setup would be appreciated.
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[jena74]

jena74 [https://community.jboss.org/people/jena74] created the discussion

"Re: Connection TimeOut while getting assigned tasks"

To view the discussion, visit: https://community.jboss.org/message/739301#739301

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Hi,

In fact I found a solution just this morning.
Before, in my client code, I was creating a HornetQTaskClientConnector() using always the same name as a first parameter.
Since I generate a different one each time, I don't have the problem anymore.

Jena
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[Yarr P.]

Yarr P. [https://community.jboss.org/people/groopk] created the discussion

"Re: Connection TimeOut while getting assigned tasks"

To view the discussion, visit: https://community.jboss.org/message/799411#799411

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Jena74- THANK YOU. We had that exact same problem, and your solution worked.

On a side note, I found many posts in the forums of people with the same issue, but no answers.   Would be nice for jbpm to include information on this in the javadoc/etc.
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