Hi Trygve,

Thanks for reporting these problems with comprehensive log messages; they were very helpful to diagnose.

The bug causing the inability to reliably restart without downtime has been identified and fixed. I just deployed new WADI 2.2-SNAPSHOT artifacts, which can be found there:

http://snapshots.repository.codehaus.org/org/codehaus/wadi/


Can you please confirm that this is now working as expected within your environment?


Regarding the warning message

16:22:43,524 WARN [UpdateReplicationCommand] Update has not been properly cascaded due to a communication failure. If a targeted node has been lost, state will be re-balanced automatically.

the timeout is not exposed via API. Even if this warning message is displayed, an update message has actually been queued for delivery to the relevant back-up nodes. However, there is no guarantee that in case of failure, the cluster will be able to restore the latest session state as the latest update message may not have actually been delivered to back-up nodes.

I conducted load-testing on a single computer. As the network traffic going through the loopback interface does not actually touch the network card, this is a problem I was never able to observe.

Do you have an idea of the traffic volume when this warning message starts to appear? Also, do you have an idea of the session size?

Thanks,
Gianny

On 31/10/2009, at 3:39 AM, Trygve Hardersen wrote:

Hello

We have been using Geronimo 2.2-SNAPSHOT in production for a good month now, and I thought I'd share some experiences with the community, and maybe get some help. We are an online backup service, check out jottabackup.com if you're interested.

Generally our experience has been very positive. We're using the GBean framework for custom server components, the DB connection pools against MySQL databases, stateless service EJBs and various MDB, and of course the web tier (Jetty). Everything is running smoothly and we're very much looking forward to 2.2 being released so we can "release" our own software.

The issues we're having are related to WADI clustering with Jetty. First we can't use Jetty7 because of GERONIMO-4846, so we're using Jetty6 which works fine. The more serious issue is that we often can not update our servers without downtime. This is what happens:

We have 2 application servers (AS-000 and AS-001) running dynamic WADI HTTP session replication between them. When updating we first stop one, AS-000 in this case. That works fine and the active sessions are migrated to AS-001:

23:43:18,160 INFO  [SimpleStateManager]
=============================
New Partition Balancing
Partition Balancing
    Size [24]
Partition[0] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[1] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[2] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[3] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[4] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[5] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[6] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[7] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[8] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[9] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[10] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[11] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[12] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[13] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[14] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[15] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[16] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[17] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[18] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[19] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[20] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[21] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[22] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0] Partition[23] owned by [TribesPeer [AS-001; tcp:// 10.0.10.101:4000]]; version [3]; mergeVersion [0]
=============================

23:43:28,539 INFO [TcpFailureDetector] Verification complete. Member disappeared[org.apache.catalina.tribes.membership.MemberImpl [tcp://{10, 0, 10, 100}:4000,{10, 0, 10, 100},4000, alive=41104531,id={-4 -32 54 90 -109 -17 65 64 -117 40 -110 -14 36 93 -12 -118 }, payload={-84 -19 0 5 115 114 0 50 111 ...(423)}, command={66 65 66 89 45 65 76 69 88 ...(9)}, domain={74 79 84 84 65 95 87 65 68 ...(10)}, ]] 23:43:28,540 INFO [ChannelInterceptorBase] memberDisappeared:tcp:// {10, 0, 10, 100}:4000

We then update AS-000 and try to start it, but it fails to rejoin the WADI cluster:

23:46:30,784 INFO [ReceiverBase] Receiver Server Socket bound to:/ 10.0.10.100:4000 23:46:30,864 INFO [ChannelInterceptorBase] memberStart local:org.apache.catalina.tribes.membership.MemberImpl[tcp:// 10.0.10.100:4000,10.0.10.100,4000, alive=0,id={-103 34 80 -19 68 -51 70 -91 -108 39 -84 65 50 50 103 -107 }, payload={-84 -19 0 5 115 114 0 50 111 ...(423)}, command={}, domain={74 79 84 84 65 95 87 65 68 ...(10)}, ] notify:false peer:AS-000 23:46:30,868 INFO [McastService] Setting cluster mcast soTimeout to 500 23:46:30,908 INFO [McastService] Sleeping for 1000 milliseconds to establish cluster membership, start level:4 23:46:31,139 INFO [ChannelInterceptorBase] memberAdded:tcp://{10, 0, 10, 101}:4000 23:46:31,908 INFO [McastService] Done sleeping, membership established, start level:4 23:46:31,912 INFO [McastService] Sleeping for 1000 milliseconds to establish cluster membership, start level:8 23:46:31,927 INFO [BufferPool] Created a buffer pool with max size: 104857600 bytes of type:org.apache.catalina.tribes.io.BufferPool15Impl 23:46:32,912 INFO [McastService] Done sleeping, membership established, start level:8 23:46:32,912 INFO [ChannelInterceptorBase] memberStart local:org.apache.catalina.tribes.membership.MemberImpl[tcp:// 10.0.10.100:4000,10.0.10.100,4000, alive=272,id={-103 34 80 -19 68 -51 70 -91 -108 39 -84 65 50 50 103 -107 }, payload={-84 -19 0 5 115 114 0 50 111 ...(423)}, command={}, domain={74 79 84 84 65 95 87 65 68 ...(10)}, ] notify:false peer:AS-000 23:46:37,848 INFO [DiscStore] Creating directory: /usr/lib/jotta/ jotta-as-prod-1.0-SNAPSHOT/var/temp/SessionStore 23:46:37,930 INFO [BasicSingletonServiceHolder] [TribesPeer [AS-000; tcp://10.0.10.100:4000]] owns singleton service [PartitionManager for ServiceSpace [/]] 23:46:37,964 INFO [BasicSingletonServiceHolder] [TribesPeer [AS-000; tcp://10.0.10.100:4000]] resigns ownership of singleton service [PartitionManager for ServiceSpace [/]] 23:47:40,065 ERROR [BasicServiceRegistry] Error while starting [Holder for service [org.codehaus.wadi.location.partitionmanager.simplepartitionmana...@7d c2445f] named [PartitionManager] in space [ServiceSpace [/]]] org.codehaus.wadi.location.partitionmanager.PartitionManagerException: Partition [0] is unknown. at org.codehaus.wadi.location.partitionmanager.SimplePartitionManager.wai tForBoot(SimplePartitionManager.java:248) at org.codehaus.wadi.location.partitionmanager.SimplePartitionManager.sta rt(SimplePartitionManager.java:119) at org.codehaus.wadi.servicespace.basic.BasicServiceHolder.start (BasicServiceHolder.java:60) at org.codehaus.wadi.servicespace.basic.BasicServiceRegistry.start (BasicServiceRegistry.java:152) at org.codehaus.wadi.servicespace.basic.BasicServiceSpace.start (BasicServiceSpace.java:169) at org.apache.geronimo.clustering.wadi.BasicWADISessionManager.doStart (BasicWADISessionManager.java:125) at org.apache.geronimo.gbean.runtime.GBeanInstance.createInstance (GBeanInstance.java:948) at org.apache.geronimo.gbean.runtime.GBeanInstanceState.attemptFullStart( GBeanInstanceState.java:269) at org.apache.geronimo.gbean.runtime.GBeanInstanceState.start (GBeanInstanceState.java:103) at org.apache.geronimo.gbean.runtime.GBeanInstanceState.startRecursive (GBeanInstanceState.java:125) at org.apache.geronimo.gbean.runtime.GBeanInstance.startRecursive (GBeanInstance.java:538) at org.apache.geronimo.kernel.basic.BasicKernel.startRecursiveGBean (BasicKernel.java:377) at org.apache.geronimo.kernel.config.ConfigurationUtil.startConfiguration GBeans(ConfigurationUtil.java:456) at org.apache.geronimo.kernel.config.ConfigurationUtil.startConfiguration GBeans(ConfigurationUtil.java:493) at org.apache.geronimo.kernel.config.KernelConfigurationManager.start (KernelConfigurationManager.java:190) at org.apache.geronimo.kernel.config.SimpleConfigurationManager.startConf iguration(SimpleConfigurationManager.java:546)
        at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.geronimo.gbean.runtime.ReflectionMethodInvoker.invoke (ReflectionMethodInvoker.java:34) at org.apache.geronimo.gbean.runtime.GBeanOperation.invoke (GBeanOperation.java:130) at org.apache.geronimo.gbean.runtime.GBeanInstance.invoke (GBeanInstance.java:815) at org.apache.geronimo.gbean.runtime.RawInvoker.invoke (RawInvoker.java:57) at org.apache.geronimo.kernel.basic.RawOperationInvoker.invoke (RawOperationInvoker.java:35) at org.apache.geronimo.kernel.basic.ProxyMethodInterceptor.intercept (ProxyMethodInterceptor.java:96) at org.apache.geronimo.gbean.GBeanLifecycle$$EnhancerByCGLIB$ $628b9237.startConfiguration(<generated>) at org.apache.geronimo.system.main.EmbeddedDaemon.doStartup (EmbeddedDaemon.java:161) at org.apache.geronimo.system.main.EmbeddedDaemon.execute (EmbeddedDaemon.java:78) at org.apache.geronimo.kernel.util.MainConfigurationBootstrapper.main (MainConfigurationBootstrapper.java:45) at org.apache.geronimo.cli.AbstractCLI.executeMain (AbstractCLI.java:65)
        at org.apache.geronimo.cli.daemon.DaemonCLI.main(DaemonCLI.java:30)
23:47:40,078 ERROR [BasicWADISessionManager] Failed to stop
org.codehaus.wadi.servicespace.ServiceSpaceNotFoundException: ServiceSpaceName not found at org.codehaus.wadi.servicespace.basic.BasicServiceSpaceRegistry.unregis ter(BasicServiceSpaceRegistry.java:55) at org.codehaus.wadi.servicespace.basic.BasicServiceSpace.unregisterServi ceSpace(BasicServiceSpace.java:228) at org.codehaus.wadi.servicespace.basic.BasicServiceSpace.stop (BasicServiceSpace.java:175) at org.apache.geronimo.clustering.wadi.BasicWADISessionManager.doFail (BasicWADISessionManager.java:134) at org.apache.geronimo.gbean.runtime.GBeanInstance.createInstance (GBeanInstance.java:978) at org.apache.geronimo.gbean.runtime.GBeanInstanceState.attemptFullStart( GBeanInstanceState.java:269) at org.apache.geronimo.gbean.runtime.GBeanInstanceState.start (GBeanInstanceState.java:103) at org.apache.geronimo.gbean.runtime.GBeanInstanceState.startRecursive (GBeanInstanceState.java:125) at org.apache.geronimo.gbean.runtime.GBeanInstance.startRecursive (GBeanInstance.java:538) at org.apache.geronimo.kernel.basic.BasicKernel.startRecursiveGBean (BasicKernel.java:377) at org.apache.geronimo.kernel.config.ConfigurationUtil.startConfiguration GBeans(ConfigurationUtil.java:456) at org.apache.geronimo.kernel.config.ConfigurationUtil.startConfiguration GBeans(ConfigurationUtil.java:493) at org.apache.geronimo.kernel.config.KernelConfigurationManager.start (KernelConfigurationManager.java:190) at org.apache.geronimo.kernel.config.SimpleConfigurationManager.startConf iguration(SimpleConfigurationManager.java:546)
        at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.geronimo.gbean.runtime.ReflectionMethodInvoker.invoke (ReflectionMethodInvoker.java:34) at org.apache.geronimo.gbean.runtime.GBeanOperation.invoke (GBeanOperation.java:130) at org.apache.geronimo.gbean.runtime.GBeanInstance.invoke (GBeanInstance.java:815) at org.apache.geronimo.gbean.runtime.RawInvoker.invoke (RawInvoker.java:57) at org.apache.geronimo.kernel.basic.RawOperationInvoker.invoke (RawOperationInvoker.java:35) at org.apache.geronimo.kernel.basic.ProxyMethodInterceptor.intercept (ProxyMethodInterceptor.java:96) at org.apache.geronimo.gbean.GBeanLifecycle$$EnhancerByCGLIB$ $628b9237.startConfiguration(<generated>) at org.apache.geronimo.system.main.EmbeddedDaemon.doStartup (EmbeddedDaemon.java:161) at org.apache.geronimo.system.main.EmbeddedDaemon.execute (EmbeddedDaemon.java:78) at org.apache.geronimo.kernel.util.MainConfigurationBootstrapper.main (MainConfigurationBootstrapper.java:45) at org.apache.geronimo.cli.AbstractCLI.executeMain (AbstractCLI.java:65)
        at org.apache.geronimo.cli.daemon.DaemonCLI.main(DaemonCLI.java:30)

After this failure the server stops. Over at the running instance AS-001 this is logged:

23:46:31,909 INFO [ChannelInterceptorBase] memberAdded:tcp://{10, 0, 10, 100}:4000 23:46:37,929 INFO [BasicSingletonServiceHolder] [TribesPeer [AS-001; tcp://10.0.10.101:4000]] owns singleton service [PartitionManager for ServiceSpace [/]] 23:46:37,929 INFO [BasicPartitionBalancerSingletonService] Queueing partition rebalancing 23:46:38,438 ERROR [BasicEnvelopeDispatcherManager] problem dispatching message java.lang.IllegalArgumentException: org.codehaus.wadi.core.store.BasicStoreMotable is not a Session at org.codehaus.wadi.replication.manager.basic.SessionStateHandler.newExt ractFullStateExternalizable(SessionStateHandler.java:105) at org.codehaus.wadi.replication.manager.basic.SessionStateHandler.extrac tFullState(SessionStateHandler.java:53) at org.codehaus.wadi.replication.manager.basic.CreateStorageCommand.execu te(CreateStorageCommand.java:45) at org.codehaus.wadi.replication.manager.basic.SyncSecondaryManager.updat eSecondaries(SyncSecondaryManager.java:169) at org.codehaus.wadi.replication.manager.basic.SyncSecondaryManager.updat eSecondaries(SyncSecondaryManager.java:114) at org.codehaus.wadi.replication.manager.basic.SyncSecondaryManager.updat eSecondaries(SyncSecondaryManager.java:103) at org.codehaus.wadi.replication.manager.basic.SyncSecondaryManager.updat eSecondariesFollowingJoiningPeer(SyncSecondaryManager.java:75) at org.codehaus.wadi.replication.manager.basic.ReOrganizeSecondariesListe ner.receive(ReOrganizeSecondariesListener.java:53) at org.codehaus.wadi.servicespace.basic.BasicServiceMonitor.notifyListene rs(BasicServiceMonitor.java:124) at org.codehaus.wadi.servicespace.basic.BasicServiceMonitor.processLifecy cleEvent(BasicServiceMonitor.java:141) at org.codehaus.wadi.servicespace.basic.BasicServiceMonitor $ServiceLifecycleEndpoint.dispatch(BasicServiceMonitor.java:148) at org.codehaus.wadi.group.impl.ServiceEndpointWrapper.dispatch (ServiceEndpointWrapper.java:50) at org.codehaus.wadi.group.impl.BasicEnvelopeDispatcherManager $DispatchRunner.run(BasicEnvelopeDispatcherManager.java:121) at org.codehaus.wadi.servicespace.basic.BasicServiceSpaceDispatcher $ExecuteInThread.execute(BasicServiceSpaceDispatcher.java:102) at org.codehaus.wadi.group.impl.BasicEnvelopeDispatcherManager.onEnvelope (BasicEnvelopeDispatcherManager.java:100) at org.codehaus.wadi.group.impl.AbstractDispatcher.doOnEnvelope (AbstractDispatcher.java:104) at org.codehaus.wadi.group.impl.AbstractDispatcher.onEnvelope (AbstractDispatcher.java:100) at org.codehaus.wadi.servicespace.basic.ServiceSpaceEndpoint.dispatch (ServiceSpaceEndpoint.java:49) at org.codehaus.wadi.group.impl.ServiceEndpointWrapper.dispatch (ServiceEndpointWrapper.java:50) at org.codehaus.wadi.group.impl.BasicEnvelopeDispatcherManager $DispatchRunner.run(BasicEnvelopeDispatcherManager.java:121) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask (ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
23:46:40,063 INFO [BasicPartitionBalancerSingletonService] Queueing partition rebalancing 23:46:42,938 WARN [BasicPartitionBalancerSingletonService] Rebalancing has failed org.codehaus.wadi.group.MessageExchangeException: No correlated messages received within [5000]ms at org.codehaus.wadi.group.impl.AbstractDispatcher.attemptMultiRendezVous (AbstractDispatcher.java:174) at org.codehaus.wadi.location.balancing.BasicPartitionBalancer.fetchBalan cingInfoState(BasicPartitionBalancer.java:85) at org.codehaus.wadi.location.balancing.BasicPartitionBalancer.balancePar titions(BasicPartitionBalancer.java:69) at org.codehaus.wadi.location.balancing.BasicPartitionBalancerSingletonSe rvice.run(BasicPartitionBalancerSingletonService.java:85)
        at java.lang.Thread.run(Thread.java:619)
23:46:42,939 WARN [BasicPartitionBalancerSingletonService] Will retry rebalancing in [500] ms 23:46:43,439 INFO [BasicPartitionBalancerSingletonService] Queueing partition rebalancing 23:47:40,269 INFO [TcpFailureDetector] Verification complete. Member disappeared[org.apache.catalina.tribes.membership.MemberImpl [tcp://{10, 0, 10, 100}:4000,{10, 0, 10, 100},4000, alive=69401,id= {-103 34 80 -19 68 -51 70 -91 -108 39 -84 65 50 50 103 -107 }, payload={-84 -19 0 5 115 114 0 50 111 ...(423)}, command={66 65 66 89 45 65 76 69 88 ...(9)}, domain={74 79 84 84 65 95 87 65 68 ... (10)}, ]] 23:47:40,271 INFO [ChannelInterceptorBase] memberDisappeared:tcp:// {10, 0, 10, 100}:4000 23:47:40,271 INFO [BasicPartitionBalancerSingletonService] Queueing partition rebalancing

If I try to start AS-000 again the same thing happens. If we stop AS-001 the following is logged;

23:49:18,695 INFO  [SimpleStateManager] Evacuating partitions
23:49:18,699 INFO [BasicPartitionBalancerSingletonService] Queueing partition rebalancing 23:49:23,698 WARN [SimpleStateManager] Partition balancer has disappeared - backing off for [1000]ms 23:49:24,699 INFO [BasicPartitionBalancerSingletonService] Queueing partition rebalancing 23:49:29,698 WARN [SimpleStateManager] Partition balancer has disappeared - backing off for [1000]ms 23:49:30,699 INFO [BasicPartitionBalancerSingletonService] Queueing partition rebalancing 23:49:35,699 WARN [SimpleStateManager] Partition balancer has disappeared - backing off for [1000]ms 23:49:36,700 INFO [BasicPartitionBalancerSingletonService] Queueing partition rebalancing 23:49:41,699 WARN [SimpleStateManager] Partition balancer has disappeared - backing off for [1000]ms 23:49:42,701 INFO [BasicPartitionBalancerSingletonService] Queueing partition rebalancing 23:49:47,700 WARN [SimpleStateManager] Partition balancer has disappeared - backing off for [1000]ms
23:49:48,700 INFO  [SimpleStateManager] Evacuated
23:49:48,808 INFO [AbstractExclusiveContextualiser] Unloaded sessions=[36] 23:49:48,843 INFO [AbstractExclusiveContextualiser] Unloaded sessions=[13] 23:49:58,852 INFO [BasicSingletonServiceHolder] [TribesPeer [AS-001; tcp://10.0.10.101:4000]] resigns ownership of singleton service [PartitionManager for ServiceSpace [/]]

, however AS-001 then just hangs, and we have to kill the process to get it stopped. After this we can start AS-000, update AS-001 and it always seems to have no problem joining the cluster thereafter. The strange thing is that this problem does not always occur, sometimes everything goes fine. I can't find a consistent pattern but I've tried stopping AS-001 before AS-000, and I'm sure no serializable object in the session has changed between the updated and running instance.

My gut feeling is that this is either a concurrency-related bug in WADI or a network-timeout related problem. During normal operation I'm sometimes seeing messages like this in the log files:

17:14:08,869 INFO [TcpFailureDetector] Received memberDisappeared [org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, 0, 10, 101}:4000,{10, 0, 10, 101},4000, alive=95659954,id={-52 -76 98 22 10 71 76 -72 -122 -59 -21 -29 44 -86 38 114 }, payload={-84 -19 0 5 115 114 0 50 111 ...(423)}, command={}, domain={74 79 84 84 65 95 87 65 68 ...(10)}, ]] message. Will verify. 17:14:08,870 INFO [TcpFailureDetector] Verification complete. Member still alive[org.apache.catalina.tribes.membership.MemberImpl [tcp://{10, 0, 10, 101}:4000,{10, 0, 10, 101},4000, alive=95659954,id={-52 -76 98 22 10 71 76 -72 -122 -59 -21 -29 44 -86 38 114 }, payload={-84 -19 0 5 115 114 0 50 111 ...(423)}, command={}, domain={74 79 84 84 65 95 87 65 68 ...(10)}, ]]
And lately, as traffic has increased, errors like this:

16:22:43,524 WARN [UpdateReplicationCommand] Update has not been properly cascaded due to a communication failure. If a targeted node has been lost, state will be re-balanced automatically. org.codehaus.wadi.servicespace.ServiceInvocationException: org.codehaus.wadi.group.MessageExchangeException: No correlated messages received within [2000]ms at org.codehaus.wadi.servicespace.basic.CGLIBServiceProxyFactory $ProxyMethodInterceptor.intercept(CGLIBServiceProxyFactory.java:209) at org.codehaus.wadi.replication.storage.ReplicaStorage$ $EnhancerByCGLIB$$a901e91b.mergeUpdate(<generated>) at org.codehaus.wadi.replication.manager.basic.UpdateReplicationCommand.c ascadeUpdate(UpdateReplicationCommand.java:93) at org.codehaus.wadi.replication.manager.basic.UpdateReplicationCommand.r un(UpdateReplicationCommand.java:86) at org.codehaus.wadi.replication.manager.basic.SyncReplicationManager.upd ate(SyncReplicationManager.java:138) at org.codehaus.wadi.replication.manager.basic.LoggingReplicationManager. update(LoggingReplicationManager.java:100) at org.codehaus.wadi.core.session.AbstractReplicableSession.onEndProcessi ng(AbstractReplicableSession.java:49) at org.codehaus.wadi.core.session.AtomicallyReplicableSession.onEndProces sing(AtomicallyReplicableSession.java:58) at org.apache.geronimo.clustering.wadi.WADISessionAdaptor.onEndAccess (WADISessionAdaptor.java:77) at org.apache.geronimo.jetty6.cluster.ClusteredSessionManager.complete (ClusteredSessionManager.java:60) at org.mortbay.jetty.servlet.SessionHandler.handle (SessionHandler.java:198) at org.apache.geronimo.jetty6.cluster.ClusteredSessionHandler.doHandle (ClusteredSessionHandler.java:59) at org.apache.geronimo.jetty6.cluster.ClusteredSessionHandler $ActualHandler.handle(ClusteredSessionHandler.java:66) at org.apache.geronimo.jetty6.cluster.AbstractClusteredPreHandler $WebClusteredInvocation.invokeLocally (AbstractClusteredPreHandler.java:71) at org.apache.geronimo.jetty6.cluster.wadi.WADIClusteredPreHandler $WADIWebClusteredInvocation.access$000(WADIClusteredPreHandler.java: 52) at org.apache.geronimo.jetty6.cluster.wadi.WADIClusteredPreHandler $WADIWebClusteredInvocation$1.doFilter(WADIClusteredPreHandler.java: 64) at org.codehaus.wadi.web.impl.WebInvocation.invoke (WebInvocation.java:116) at org.codehaus.wadi.core.contextualiser.MemoryContextualiser.handleLocal ly(MemoryContextualiser.java:71) at org.codehaus.wadi.core.contextualiser.AbstractExclusiveContextualiser. handle(AbstractExclusiveContextualiser.java:94) at org.codehaus.wadi.core.contextualiser.AbstractMotingContextualiser.con textualise(AbstractMotingContextualiser.java:37) at org.codehaus.wadi.core.manager.StandardManager.processStateful (StandardManager.java:150) at org.codehaus.wadi.core.manager.StandardManager.contextualise (StandardManager.java:142) at org.codehaus.wadi.core.manager.ClusteredManager.contextualise (ClusteredManager.java:81) at org.apache.geronimo.jetty6.cluster.wadi.WADIClusteredPreHandler $WADIWebClusteredInvocation.invoke(WADIClusteredPreHandler.java:72) at org.apache.geronimo.jetty6.cluster.AbstractClusteredPreHandler.handle( AbstractClusteredPreHandler.java:39) at org.apache.geronimo.jetty6.cluster.ClusteredSessionHandler.handle (ClusteredSessionHandler.java:51) at org.mortbay.jetty.handler.ContextHandler.handle (ContextHandler.java:765) at org.mortbay.jetty.webapp.WebAppContext.handle (WebAppContext.java:417) at org.apache.geronimo.jetty6.handler.TwistyWebAppContext.access $101(TwistyWebAppContext.java:41) at org.apache.geronimo.jetty6.handler.TwistyWebAppContext $TwistyHandler.handle(TwistyWebAppContext.java:66) at org.apache.geronimo.jetty6.handler.ThreadClassloaderHandler.handle (ThreadClassloaderHandler.java:46) at org.apache.geronimo.jetty6.handler.InstanceContextHandler.handle (InstanceContextHandler.java:58) at org.apache.geronimo.jetty6.handler.UserTransactionHandler.handle (UserTransactionHandler.java:48) at org.apache.geronimo.jetty6.handler.ComponentContextHandler.handle (ComponentContextHandler.java:47) at org.apache.geronimo.jetty6.handler.TwistyWebAppContext.handle (TwistyWebAppContext.java:60) at org.mortbay.jetty.handler.ContextHandlerCollection.handle (ContextHandlerCollection.java:230) at org.mortbay.jetty.handler.HandlerCollection.handle (HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle (HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest (HttpConnection.java:534) at org.mortbay.jetty.HttpConnection$RequestHandler.content (HttpConnection.java:879)
        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:747)
        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run (SelectChannelEndPoint.java:409)
        at org.apache.geronimo.pool.ThreadPool$1.run(ThreadPool.java:214)
at org.apache.geronimo.pool.ThreadPool $ContextClassLoaderRunnable.run(ThreadPool.java:344) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask (ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
Caused by: org.codehaus.wadi.group.MessageExchangeException: No correlated messages received within [2000]ms at org.codehaus.wadi.group.impl.AbstractDispatcher.attemptMultiRendezVous (AbstractDispatcher.java:174) at org.codehaus.wadi.servicespace.basic.BasicServiceInvoker.invokeOnPeers (BasicServiceInvoker.java:90) at org.codehaus.wadi.servicespace.basic.BasicServiceInvoker.invoke (BasicServiceInvoker.java:69) at org.codehaus.wadi.servicespace.basic.CGLIBServiceProxyFactory $ProxyMethodInterceptor.intercept(CGLIBServiceProxyFactory.java:193)
        ... 49 more

Does anyone have some insight into what might be causing this, or where the timeouts can be increased if there are any?

I'm thinking that a static WADI configuration can be more stable than the dynamic setup we have not which relies upon multicasting. Does anyone have experience with similar setups?

Thanks!

Trygve Hardersen - Jotta





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