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  1. ActiveMQ .Net
  2. AMQNET-488

Deadlock in InactivityMonitor when using Failover

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 1.6.2, 1.6.3
    • Fix Version/s: 1.6.4, 1.7.0
    • Component/s: ActiveMQ
    • Labels:
      None
    • Environment:

      ActiveMQ 5.10.0 on Windows Server 2012
      Apache.NMS.ActiveMQ 6.2 on .Net 4.5 + Windows 7

    • Patch Info:
      Patch Available

      Description

      Can occur when FailoverTransport is disposing the transport when the inactivity monitor fires. Deadlock between InactivityMonitor.monitor and CompositeTaskRunner.mutex.

      Stack traces for deadlock:

      mscorlib.dll!System.Threading.Monitor.Enter(object obj, ref bool lockTaken) Unknown
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.InactivityMonitor.StopMonitorThreads() Line 381 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.InactivityMonitor.OnException(Apache.NMS.ActiveMQ.Transport.ITransport sender, System.Exception command) Line 310 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.Tcp.TcpTransport.Oneway(Apache.NMS.ActiveMQ.Commands.Command command) Line 146 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.InactivityMonitor.Oneway(Apache.NMS.ActiveMQ.Commands.Command command) Line 294 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.InactivityMonitor.AsyncWriteTask.Iterate() Line 474 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Threads.CompositeTaskRunner.Iterate() Line 194 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Threads.CompositeTaskRunner.Run() Line 149 C#
      mscorlib.dll!System.Threading.ThreadHelper.ThreadStart_Context(object state) Unknown
      mscorlib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state, bool preserveSyncCtx) Unknown
      mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state, bool preserveSyncCtx) Unknown
      mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Unknown
      mscorlib.dll!System.Threading.ThreadHelper.ThreadStart() Unknown

      ============================================================================================================================

      mscorlib.dll!System.Threading.Monitor.Enter(object obj, ref bool lockTaken) Unknown
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Threads.CompositeTaskRunner.RemoveTask(Apache.NMS.ActiveMQ.Threads.CompositeTask task) Line 65 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.InactivityMonitor.StopMonitorThreads() Line 401 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.InactivityMonitor.Stop() Line 223 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.TransportFilter.Stop() Line 196 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.Failover.FailoverTransport.DisposeTransport(Apache.NMS.ActiveMQ.Transport.ITransport transport) Line 1521 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.Failover.FailoverTransport.HandleTransportFailure(System.Exception e) Line 454 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.Failover.FailoverTransport.Oneway(Apache.NMS.ActiveMQ.Commands.Command command) Line 815 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.TransportFilter.Oneway(Apache.NMS.ActiveMQ.Commands.Command command) Line 82 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.MutexTransport.Oneway(Apache.NMS.ActiveMQ.Commands.Command command) Line 69 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Transport.ResponseCorrelator.Oneway(Apache.NMS.ActiveMQ.Commands.Command command) Line 54 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Connection.Oneway(Apache.NMS.ActiveMQ.Commands.Command command) Line 883 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Session.Session(Apache.NMS.ActiveMQ.Connection connection, Apache.NMS.ActiveMQ.Commands.SessionId sessionId, Apache.NMS.AcknowledgementMode acknowledgementMode) Line 72 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Connection.CreateActiveMQSession(Apache.NMS.AcknowledgementMode ackMode) Line 594 C#
      Apache.NMS.ActiveMQ.dll!Apache.NMS.ActiveMQ.Connection.CreateSession(Apache.NMS.AcknowledgementMode sessionAcknowledgementMode) Line 588 C#
      [Private code sending message in new session]

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            • Assignee:
              tabish Timothy A. Bish
              Reporter:
              lscpike Laurence Pike
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              Dates

              • Created:
                Updated:
                Resolved: