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Orbeon 3.9 clustering

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Martin Dubeau

Orbeon 3.9 clustering

Hi,

we are using Orbeon 3.9 PE in Liferay 6.0.6 community edition on Tomcat 6.0.29. We are currently configuring our environment in cluster. We have 2 Tomcat nodes.

1- Is there some documentation available that explains what needs to be done in the Orbeon config to support clustering ?

2- We encounter serialization errors when the document cache is putting an attribute in the Tomcat session. I don't know what it is trying to put in the session. One solution I can see would be to disable the caching with

<property as="xs:boolean"
      name="oxf.xforms.cache.document" value="false"/>.  But what
      will be the impact on performance ?  Will this fix my issue ?

      

      See the error below.

      

      

      Thanks,

      

      Martin Dubeau

      Telus Health Solutions

Orbeon Forms Error

Type	class java.lang.IllegalArgumentException
Message	setAttribute: Non-serializable attribute oxf.xforms.state.manager.session-listeners-key.21B9CB31-42CB-AF67-290B-581EC353A28D
Location	oxf:/ops/pfc/xforms-epilogue.xpl
Line	125
Column	60
Stack Trace	java.lang.IllegalArgumentException: setAttribute: Non-serializable attribute oxf.xforms.state.manager.session-listeners-key.21B9CB31-42CB-AF67-290B-581EC353A28D at org.apache.catalina.session.StandardSession.setAttribute(StandardSession.java:1330) at org.apache.catalina.ha.session.DeltaSession.setAttribute(DeltaSession.java:594) at org.apache.catalina.ha.session.DeltaSession.setAttribute(DeltaSession.java:578) at org.apache.catalina.session.StandardSessionFacade.setAttribute(StandardSessionFacade.java:130) at org.orbeon.oxf.pipeline.InitUtils$SessionMap$1.setAttribute(InitUtils.java:417) at org.orbeon.oxf.util.AttributesToMap.put(AttributesToMap.java:38) at org.orbeon.oxf.util.AttributesToMap.put(AttributesToMap.java:21) at org.orbeon.oxf.xforms.state.XFormsStateManager.onAdd(XFormsStateManager.java:131) at org.orbeon.oxf.xforms.XFormsContainingDocument.added(XFormsContainingDocument.java:1399) at org.orbeon.oxf.cache.MemoryCacheImpl.notifyAdded(MemoryCacheImpl.java:135) at org.orbeon.oxf.cache.MemoryCacheImpl.add(MemoryCacheImpl.java:100) at org.orbeon.oxf.xforms.state.XFormsDocumentCache.storeDocument(XFormsDocumentCache.java:61) at org.orbeon.oxf.xforms.state.XFormsStateManager.cacheOrStore(XFormsStateManager.java:197) at org.orbeon.oxf.xforms.state.XFormsStateManager.afterInitialResponse(XFormsStateManager.java:80) at org.orbeon.oxf.xforms.processor.XFormsToXHTML.doIt(XFormsToXHTML.java:236) at org.orbeon.oxf.xforms.processor.XFormsToXHTML.access$000(XFormsToXHTML.java:53) at org.orbeon.oxf.xforms.processor.XFormsToXHTML$1.readImpl(XFormsToXHTML.java:74) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.xinclude.XIncludeProcessor$1$2.read(XIncludeProcessor.java:119) at org.orbeon.oxf.processor.ProcessorImpl.readCacheInputAsObject(ProcessorImpl.java:365) at org.orbeon.oxf.processor.ProcessorImpl.readCacheInputAsObject(ProcessorImpl.java:330) at org.orbeon.oxf.processor.xinclude.XIncludeProcessor$1.readImpl(XIncludeProcessor.java:113) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.xforms.processor.ResourcesAggregator$$anon$1.readImpl(ResourcesAggregator.scala:43) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$InternalTopOutput$1.run(PipelineProcessor.java:577) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeParents(PipelineProcessor.java:746) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$400(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$InternalTopOutput.readImpl(PipelineProcessor.java:573) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$InternalTopOutput$1.run(PipelineProcessor.java:577) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeParents(PipelineProcessor.java:746) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$400(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$InternalTopOutput.readImpl(PipelineProcessor.java:573) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.TeeProcessor$TeeProcessorOutputImpl.readImpl(TeeProcessor.java:89) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsTinyTree(ProcessorImpl.java:286) at org.orbeon.oxf.processor.ProcessorImpl$3.read(ProcessorImpl.java:315) at org.orbeon.oxf.processor.ProcessorImpl.readCacheInputAsObject(ProcessorImpl.java:365) at org.orbeon.oxf.processor.ProcessorImpl.readCacheInputAsObject(ProcessorImpl.java:330) at org.orbeon.oxf.processor.ProcessorImpl.readCacheInputAsTinyTree(ProcessorImpl.java:313) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor.start(ConcreteChooseProcessor.java:186) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$5.run(PipelineProcessor.java:664) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.start(PipelineProcessor.java:661) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$5.run(PipelineProcessor.java:664) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.start(PipelineProcessor.java:661) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor.start(ConcreteChooseProcessor.java:248) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$5.run(PipelineProcessor.java:664) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.start(PipelineProcessor.java:661) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$5.run(PipelineProcessor.java:664) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.start(PipelineProcessor.java:661) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor.start(ConcreteChooseProcessor.java:248) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$5.run(PipelineProcessor.java:664) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.start(PipelineProcessor.java:661) at org.orbeon.oxf.processor.PageFlowControllerProcessor.start(PageFlowControllerProcessor.java:476) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$5.run(PipelineProcessor.java:664) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.start(PipelineProcessor.java:661) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.getInput(PipelineProcessor.java:142) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:85) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.IdentityProcessor$1.readImpl(IdentityProcessor.java:34) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1$1.run(PipelineProcessor.java:94) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$000(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$1.readImpl(PipelineProcessor.java:92) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor$1.readImpl(ConcreteChooseProcessor.java:127) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$InternalTopOutput$1.run(PipelineProcessor.java:577) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeParents(PipelineProcessor.java:746) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.access$400(PipelineProcessor.java:61) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$InternalTopOutput.readImpl(PipelineProcessor.java:573) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl$TopLevelOutputFilter.read(ProcessorOutputImpl.java:263) at org.orbeon.oxf.processor.impl.ProcessorOutputImpl.read(ProcessorOutputImpl.java:406) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:260) at org.orbeon.oxf.processor.ProcessorImpl.readInputAsSAX(ProcessorImpl.java:264) at org.orbeon.oxf.processor.NullSerializer.start(NullSerializer.java:28) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$5.run(PipelineProcessor.java:664) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.start(PipelineProcessor.java:661) at org.orbeon.oxf.processor.pipeline.choose.ConcreteChooseProcessor.start(ConcreteChooseProcessor.java:248) at org.orbeon.oxf.processor.pipeline.PipelineProcessor$5.run(PipelineProcessor.java:664) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.executeChildren(PipelineProcessor.java:729) at org.orbeon.oxf.processor.pipeline.PipelineProcessor.start(PipelineProcessor.java:661) at org.orbeon.oxf.processor.PageFlowControllerProcessor.start(PageFlowControllerProcessor.java:476) at org.orbeon.oxf.pipeline.InitUtils.runProcessor(InitUtils.java:89) at org.orbeon.oxf.webapp.ProcessorService.service(ProcessorService.java:97) at org.orbeon.oxf.servlet.OrbeonServletDelegate.service(OrbeonServletDelegate.java:133) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at rpm.orbeon.sso.SSOFilter.doFilter(SSOFilter.java:304) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:347) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Unknown Source)

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Alessandro Vernet

Re: Orbeon 3.9 clustering

Administrator

Hi Martin,

At this point, Orbeon Forms doesn't support session replication. So, when deploying Orbeon in a cluster, you need to:

- Disable session replication.
- Setup your load balancer to use sticky cookies so the same user is always sent to the same server in the cluster.

(And don't disable the document cache! It wouldn't help, and if working at all would kill performance.)

Alex

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dubeaum

Re: Orbeon 3.9 clustering

Hi Alex,

When you say "Disable session replication", do you talk about an Orbeon
parameter somewhere or you are talking about the Tomcat session
replication ?

Thanks,

Martin
Le 2013-04-11 13:43, Alessandro Vernet a écrit :

> Hi Martin,
>
> At this point, Orbeon Forms doesn't support session replication. So, when
> deploying Orbeon in a cluster, you need to:
>
> - Disable session replication.
> - Setup your load balancer to use sticky cookies so the same user is always
> sent to the same server in the cluster.
>
> (And don't disable the document cache! It wouldn't help, and if working at
> all would kill performance.)
>
> Alex
>
> -----

Alessandro Vernet

Re: Orbeon 3.9 clustering

Administrator

Hi Martin,

Sorry for the confusion: I was talking about the Tomcat session replication (or in general session replication done by your application server). There is no parameter that needs to be changed at the Orbeon Forms level for clustering.

Alex

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Follow Orbeon on Twitter: @orbeon
Follow me on Twitter: @avernet

dubeaum

Re: Orbeon 3.9 clustering

Ok thanks a lot Alex.

Is there any plan to support session replication ? If so, any target
release ?

Regards,

Martin

Le 2013-04-12 15:30, Alessandro Vernet a écrit :

> Hi Martin,
>
> Sorry for the confusion: I was talking about the Tomcat session replication
> (or in general session replication done by your application server). There
> is no parameter that needs to be changed at the Orbeon Forms level for
> clustering.
>
> Alex
>
> -----

Alessandro Vernet

Re: Orbeon 3.9 clustering

Administrator

Martin,

We've been thinking about it, but supporting session replication isn't that simple to do efficiently, because of the amount of data kept by the XForms engine on the server for each active document. You'll find some thoughts we captured about this on the wiki page linked below.

http://wiki.orbeon.com/forms/projects/xforms-session-replication

Compared to the complexity of the task, the benefit we would get by having session replication is small: it would only impact users assigned to a server in the cluster that goes down while they are filling a form, and they would loose data entered since the last time they saved.

Our current thinking is that to handle this, a solution better than session replication would be to implement a transparent auto-save. In that case, if the user is reassigned to another server while filling out a form, Orbeon Forms would be able to recreate a session transparently based on the auto-saved data. And this would also handle cases where things other than servers go down (say user loosing a connection for a long time, computer crashing or running out of power, browser crashing…).

But at this point we don't have any short or mid-term plans to implement this, and when we do so, it will most likely be thanks to a customer sponsoring this feature (through a Dev Support plan).

Alex

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