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From Christian Posta <christian.po...@gmail.com>
Subject Re: Re: ActiveMQ client app hold unexpectedly!!!
Date Tue, 16 Jul 2013 12:15:11 GMT
Yes, on the first time PFC kicked in you would see the log messages. Not on
subsequent times.


On Tue, Jul 16, 2013 at 8:01 AM, lzr <jswqne@163.com> wrote:

> Based on my experiences if the issue caused by the producer flow control
> configuration, the logs will have some warning messages, right? In fact I
> didn't found any warning or errors in the activemq.log.
> Anyway, I'll check the configuration files right now.
>
>
> thanks lot,
> Zhuran.
>
>
> At 2013-07-16 19:36:44,"Christian Posta" <christian.posta@gmail.com>
> wrote:
>
> >This means the client didn't' receive a response from the broker.
> >Did the broker producer flow control this client? ie, was the destination
> >to which the client sending full?
> >
> >
> >On Tue, Jul 16, 2013 at 7:23 AM, lzr <jswqne@163.com> wrote:
> >
> >> Dear all,
> >>
> >>
> >> I found a one of the ActiveMQ thread got stuck unexpectedly for several
> >> days. Customer was very angry to the ActiveMQ for the bad behavior. Did
> >> anybody experienced this issue? It would be much appreciated if any
> clue!!!
> >> My application is normal Java JMS application like the following:
> >> new ActiveMQConnectionFactory.
> >> create Connection;
> >> conn.start.
> >> create session.
> >> create destination, producer and message
> >> send messages
> >> commit;
> >> conn.close.
> >>
> >>
> >> The follows is the stack when I looked into it with debug tools:
> >>
> >> sun.misc.Unsafe.park(Native Method)
> >>
> >> java.util.concurrent.locks.LockSupport.park(LockSupport.java:169)
> >>
> >>
> >>
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1787)
> >>
> >>
> java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:356)
> >>
> >>
> >>
> org.apache.activemq.transport.FutureResponse.getResult(FutureResponse.java:40)
> >>
> >>
> >>
> org.apache.activemq.transport.ResponseCorrelator.request(ResponseCorrelator.java:80)
> >>
> >>
> >>
> org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1233)
> >>
> >>
> >>
> org.apache.activemq.ActiveMQConnection.ensureConnectionInfoSent(ActiveMQConnection.java:1339)
> >>
> >>
> org.apache.activemq.ActiveMQConnection.start(ActiveMQConnection.java:488)
> >>
> >> nc.bs.mqv2.mmgp.mq.UFMQProcessor.getConnection(UFMQProcessor.java:487)
> >>
> >> nc.bs.mqv2.mmgp.mq.UFMQProcessor.getConnection(UFMQProcessor.java:462)
> >>
> >>
> >>
> nc.bs.mqv2.mmgp.mq.UFMQProcessor.sendSerializedObjMsg(UFMQProcessor.java:128)
> >>
> >>
> >>
> nc.bs.mqv2.meam.mq.sendbasedatas.AbstractMeamBDSyncService.sendBaseData(AbstractMeamBDSyncService.java:64)
> >>
> >>
> >>
> nc.bs.mqv2.mes.bd.mq.basedoc.AbstractBDServerSendService.dosendDataProcess(AbstractBDServerSendService.java:213)
> >>
> >>
> >>
> nc.bs.mqv2.mes.bd.mq.basedoc.AbstractBDServerSendService.sendDatas(AbstractBDServerSendService.java:62)
> >>
> >>
> >>
> nc.impl.mqv2.mes.bd.mq.SyncSendServiceImpl.ncserverSendDatas(SyncSendServiceImpl.java:58)
> >>
> >> nc.gejb.meam.cmt.MeamEjbBean.ncserverSendDatas(MeamEjbBean.java:8741)
> >>
> >>
> nc.gejb.meam.cmt.EJSLocalStatelessnc_gejb_meam_cmt_Meam_b44269e7.ncserverSendDatas(Unknown
> >> Source)
> >>
> >> sun.reflect.GeneratedMethodAccessor447.invoke(Unknown Source)
> >>
> >>
> >>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> >>
> >> java.lang.reflect.Method.invoke(Method.java:615)
> >>
> >>
> >>
> nc.bs.framework.ejb.AbstractEJBServiceHandler.invoke(AbstractEJBServiceHandler.java:56)
> >>
> >>
> >>
> nc.bs.framework.ejb.AbstractEJBServiceHandler.invoke(AbstractEJBServiceHandler.java:34)
> >>
> >> $Proxy58.ncserverSendDatas(Unknown Source)
> >>
> >>
> >>
> nc.bs.mqv2.meam.mq.task.DoSendBaseDataTaskUtil.runTask(DoSendBaseDataTaskUtil.java:63)
> >>
> >>
> >>
> nc.bs.mqv2.meam.mq.task.NCServerBaseDatasSendTask.executeTask(NCServerBaseDatasSendTask.java:26)
> >>
> >>
> >>
> nc.bs.pub.taskcenter.BgBizsPluginProcess.callBusinessPlugin(BgBizsPluginProcess.java:43)
> >>
> >> nc.bs.pub.pa.read.TaskBodyBase.callBizsPlugin(TaskBodyBase.java:188)
> >>
> >> nc.bs.pub.pa.read.TaskBodyBase.callBusinessPlugin(TaskBodyBase.java:174)
> >>
> >> nc.bs.pub.pa.read.TaskBodyBase.createMetaMsg(TaskBodyBase.java:95)
> >>
> >>
> nc.bs.pub.pa.read.TaskBodyBase.createAndSendMessage(TaskBodyBase.java:41)
> >>
> >>
> nc.bs.pub.taskcenter.BackgroundTaskBody.execute(BackgroundTaskBody.java:47)
> >>
> >>
> >>
> nc.impl.uap.scheduler.ExecutorServiceImpl.executeTask_RequiresNew(ExecutorServiceImpl.java:27)
> >>
> >>
> >>
> nc.itf.uap.mw.MwBizEJBEjbBean.executeTask_RequiresNew(MwBizEJBEjbBean.java:1682)
> >>
> >>
> nc.itf.uap.mw.EJSLocalStatelessnc_itf_uap_mw_MwBizEJB_f98e92a8.executeTask_RequiresNew(Unknown
> >> Source)
> >>
> >> sun.reflect.GeneratedMethodAccessor1036.invoke(Unknown Source)
> >>
> >>
> >>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> >>
> >> java.lang.reflect.Method.invoke(Method.java:615)
> >>
> >>
> >>
> nc.bs.framework.ejb.AbstractEJBServiceHandler.invoke(AbstractEJBServiceHandler.java:56)
> >>
> >>
> >>
> nc.bs.framework.ejb.AbstractEJBServiceHandler.invoke(AbstractEJBServiceHandler.java:34)
> >>
> >> $Proxy39.executeTask_RequiresNew(Unknown Source)
> >>
> >> nc.bs.uap.scheduler.impl.TaskExecutor.executeTask(TaskExecutor.java:110)
> >>
> >> nc.bs.uap.scheduler.impl.TaskExecutor.run(TaskExecutor.java:75)
> >>
> >> nc.bs.framework.execute.Executor$1.run(Executor.java:80)
> >>
> >>
> nc.bs.framework.execute.commonj.impl.WorkAdaptor.run(WorkAdaptor.java:29)
> >>
> >> com.ibm.ws.asynchbeans.J2EEContext.run(J2EEContext.java:1114)
> >>
> >>
> >>
> com.ibm.ws.asynchbeans.WorkWithExecutionContextImpl.go(WorkWithExecutionContextImpl.java:195)
> >>
> >> com.ibm.ws.asynchbeans.CJWorkItemImpl.run(CJWorkItemImpl.java:187)
> >>
> >> com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1469)
> >>
> >>
> >>
> >>
> >> Best regards,
> >>
> >> Zhuran Li
> >
> >
> >
> >
> >--
> >*Christian Posta*
> >http://www.christianposta.com/blog
> >twitter: @christianposta
>



-- 
*Christian Posta*
http://www.christianposta.com/blog
twitter: @christianposta

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