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  1. JBoss A-MQ
  2. ENTMQ-2104

[A-MQ6, Kahadb] org.apache.activemq.broker.region.Queue.doMessageSend() future not completing

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Done
    • Affects Version/s: JBoss A-MQ 6.2.1
    • Fix Version/s: JBoss A-MQ 6.3.x
    • Component/s: kahadb
    • Labels:
      None

      Description

      Noticed that the doSendMessage() thread is waiting on a Future object that does not seem to be completed.

      ActiveMQ VMTransport: vm://XXXXXX" #375 daemon prio=5 os_prio=0 tid=0x00007f9bdc2f0800 nid=0x4e2 waiting on condition [0x00007f9bc7e9e000]
         java.lang.Thread.State: WAITING (parking)
      	at sun.misc.Unsafe.park(Native Method)
      	- parking to wait for  <0x00000000d8e65ef8> (a org.apache.activemq.store.kahadb.KahaDBStore$StoreQueueTask$InnerFutureTask)
      	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
      	at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:429)
      	at java.util.concurrent.FutureTask.get(FutureTask.java:191)
      	at org.apache.activemq.broker.region.Queue.doMessageSend(Queue.java:853)
      	at org.apache.activemq.broker.region.Queue.send(Queue.java:727)
      	at org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:419)
      	at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:468)
      	at org.apache.activemq.broker.jmx.ManagedRegionBroker.send(ManagedRegionBroker.java:296)
      	at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:152)
      	at org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:96)
      	at org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:293)
      	at org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:157)
      	at org.apache.activemq.broker.util.LoggingBrokerPlugin.send(LoggingBrokerPlugin.java:275)
      	at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:152)
      	at org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:157)
      	at org.apache.activemq.broker.TransportConnection.processMessage(TransportConnection.java:571)
      	at org.apache.activemq.command.ActiveMQMessage.visit(ActiveMQMessage.java:768)
      	at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:326)
      	at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:190)
      	at org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116)
      	at org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50)
      	at org.apache.activemq.transport.vm.VMTransport.iterate(VMTransport.java:271)
      	at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:133)
      	at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      	at java.lang.Thread.run(Thread.java:745)
      
      

      It seems that hte org.apache.activemq.store.kahadb.KahaDBStore.StoreQueueTask#run() which should invoke complete on the future has been invoked but complete is not triggered. We noticed that the run method catches an Exception and instead of a Throwable which could explain why the complete() has not been fired.

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              • Assignee:
                garytully Gary Tully
                Reporter:
                pfox Patrick Fox
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                Dates

                • Created:
                  Updated:
                  Resolved: