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From "Laurence Pike (JIRA)" <jira+amq...@apache.org>
Subject [jira] [Created] (AMQNET-488) Deadlock in InactivityMonitor when using Failover
Date Tue, 12 Aug 2014 10:07:12 GMT
Laurence Pike created AMQNET-488:
------------------------------------

             Summary: Deadlock in InactivityMonitor when using Failover
                 Key: AMQNET-488
                 URL: https://issues.apache.org/jira/browse/AMQNET-488
             Project: ActiveMQ .Net
          Issue Type: Bug
          Components: ActiveMQ
    Affects Versions: 1.6.2
         Environment: ActiveMQ 5.10.0 on Windows Server 2012
Apache.NMS.ActiveMQ 6.2 on .Net 4.5 + Windows 7
            Reporter: Laurence Pike
            Assignee: Jim Gomes
            Priority: Critical


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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