[jboss-dev-forums] [Design of JBoss Portal] - Re: portal clustering problem when using optimistic locking

[prabhat.jha@jboss.com]

Thread dumpts attached to JBPORTAL-1879. With 5 users hitting one server, I  primarily see 

  - waiting on <0x0000002b2dad5118> (a java.util.HashMap)
        at org.jgroups.blocks.GroupRequest.doExecute(GroupRequest.java:502)
        - locked <0x0000002b2dad5118> (a java.util.HashMap)
        at org.jgroups.blocks.GroupRequest.execute(GroupRequest.java:193)
        at org.jgroups.blocks.MessageDispatcher.castMessage(MessageDispatcher.java:432)
        at org.jgroups.blocks.RpcDispatcher.callRemoteMethods(RpcDispatcher.java:192)
        at org.jgroups.blocks.RpcDispatcher.callRemoteMethods(RpcDispatcher.java:163)
        at org.jboss.cache.TreeCache.callRemoteMethodsViaReflection(TreeCache.java:4471)
        at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4418)
        at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4371)
        at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4489)
        at org.jboss.cache.interceptors.BaseRpcInterceptor.replicateCall(BaseRpcInterceptor.java:110)
        at org.jboss.cache.interceptors.BaseRpcInterceptor.replicateCall(BaseRpcInterceptor.java:88)
        at org.jboss.cache.interceptors.OptimisticReplicationInterceptor.broadcastPrepare(OptimisticReplicationInterceptor.java:181)
        at org.jboss.cache.interceptors.OptimisticReplicationInterceptor.invoke(OptimisticReplicationInterceptor.java:90)
        at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:68)
        at org.jboss.cache.interceptors.TxInterceptor.runPreparePhase(TxInterceptor.java:887)
        at org.jboss.cache.interceptors.TxInterceptor$LocalSynchronizationHandler.beforeCompletion(TxInterceptor.java:1170)
        at org.jboss.cache.interceptors.OrderedSynchronizationHandler.beforeCompletion(OrderedSynchronizationHandler.java:75)
        at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:114)
        at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:247)
        at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:86)
        at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:177)
        at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1382)
        at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:135)
        at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:87)
        at org.jboss.cache.interceptors.TxInterceptor.handleNonTxMethod(TxInterceptor.java:383)
        at org.jboss.cache.interceptors.TxInterceptor.invoke(TxInterceptor.java:174)
        at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:68)
        at org.jboss.cache.interceptors.CacheMgmtInterceptor.invoke(CacheMgmtInterceptor.java:157)
        at org.jboss.cache.TreeCache.invokeMethod(TreeCache.java:5919)
        at org.jboss.cache.TreeCache.put(TreeCache.java:3858)
        at org.jboss.cache.TreeCache.put(TreeCache.java:3532)
        at org.hibernate.cache.OptimisticTreeCache.writeLoad(OptimisticTreeCache.java:84)
        at org.hibernate.cache.TransactionalCache.put(TransactionalCache.java:55)


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