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Posted to dev@activemq.apache.org by "Timothy Bish (JIRA)" <ji...@apache.org> on 2011/02/02 12:49:30 UTC

[jira] Closed: (AMQNET-316) Unhandled Exception in thread started by Apache.NMS.ActiveMQ when Broker is restarted

     [ https://issues.apache.org/jira/browse/AMQNET-316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timothy Bish closed AMQNET-316.
-------------------------------

    Resolution: Not A Problem

Using old version of client, newer release has solved the issue

> Unhandled Exception in thread started by Apache.NMS.ActiveMQ when Broker is restarted
> -------------------------------------------------------------------------------------
>
>                 Key: AMQNET-316
>                 URL: https://issues.apache.org/jira/browse/AMQNET-316
>             Project: ActiveMQ .Net
>          Issue Type: Bug
>          Components: ActiveMQ
>    Affects Versions: 1.2.0
>         Environment: Apache.NMS.dll 1.2.0.1836, Apache.NMS.ActiveMQ.dll 1.2.0.1864, Active MQ Broker 5.3.1, .NET Framework 3.5 SP1, Windows 7 64-bit
>            Reporter: Philip Oswald
>            Assignee: Jim Gomes
>
> We observed occasional crashes in a .NET message producer when the Broker was restarted. The crash could be traced to
> an unhandled System.InvalidOperationException that was thrown in a thread started by Apache.NMS.ActiveMQ. 
> The following information was reported by the System.AppDomain.CurrentDomain.UnhandledException event:
> ------
> .NET Exception in database layer:
>     System.InvalidOperationException (from module mscorlib): Die Auflistung wurde geändert. Der Enumerationsvorgang kann möglicherweise nicht ausgeführt werden.
> Detailed Information:
> Message: Die Auflistung wurde geändert. Der Enumerationsvorgang kann möglicherweise nicht ausgeführt werden.
> Type: System.InvalidOperationException
> Source: mscorlib
> Stack Trace:
>    bei System.Collections.Hashtable.HashtableEnumerator.MoveNext()
>    bei Apache.NMS.ActiveMQ.Transport.ResponseCorrelator.OnException(ITransport sender, Exception command)
>    bei Apache.NMS.ActiveMQ.Transport.InactivityMonitor.OnException(ITransport sender, Exception command)
>    bei Apache.NMS.ActiveMQ.Transport.Tcp.TcpTransport.ReadLoop()
>    bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
>    bei System.Threading.ThreadHelper.ThreadStart()
> The .NET runtime is terminating.
> ------
> The problem occurs only in rare circumstances. 
> It could be reproduced by repeatedly executing the following steps (for about one hour):
> - Stop the Broker (NET STOP ActiveMQ)
> - Wait for 5 secs
> - Start the Broker (NET START ActiveMQ)
> - Wait for 5 secs
> Further info:
> - We have a fairly simple "reporter thread" that sends messages to an ActiveMQ queue using a single connection,
>   session and producer instance. Whenever the reporter thread encounteres an exception, the three instances
>   (connection, session, producer) are closed and recreated. The instances are only accessed by the reporter thread.
> - URL: activemq:tcp://test-cus-server:61616 

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