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https://issues.apache.org/jira/browse/AMQ-4955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13867567#comment-13867567
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Arthur Naseef commented on AMQ-4955:
------------------------------------

Based on the description of the steps to reproduce, I tried a client program 
that doesn't use a connection factory, but instead just opens a socket to the 
server, then closes it.  This test failed to produce any sort of leak.  One 
difference - I'm testing 5.9.0.

Is there anything else that needs to happen in the normal connection sequence 
that my test might miss?

Can you try to reproduce the problem with 5.9.0?

> TCP Connections and related thread leak.
> ----------------------------------------
>
>                 Key: AMQ-4955
>                 URL: https://issues.apache.org/jira/browse/AMQ-4955
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.8.0
>         Environment: Windows 2008 R2, Jdk 1.7.40
>            Reporter: Murali Mogalayapalli
>            Priority: Critical
>         Attachments: TCP-Connection.jpg, ThreadStack.jpg, activemq.xml
>
>
> TCP Connections and related thread leak.
> Scenario
> Active MQ version 5.8
> NMS Client version 1.6
> OS - Windows 2008 R2
> JDK - 1.7.x
> activemq.xml is attached
> If a client connectivity gets lost between the time the initial socket is 
> created and the exchange of the wire format, the active MQ server's Client's 
> server thread gets blocked in socket read hanging out the TCP connection and 
> the related thread
> Here are the steps to recreate
> 1. Configure the Active MQ server with the activemq.xml attached.
> 2. Start the client in a debugger and have a break point at a place in such a 
> way that the client can be disconnected after the socket is established.
> 3. Once the breakpoint is hit, disconnect the client machine from the network
> 4. Kill the client- This basically simulates a situation where the socket 
> tear down packets are not reached the active mq server.
> 5. Open the JConsole. Look for the hanging TCP connection and the related 
> thread.
> Is there an configurable option in Active MQ to sweep and close the 
> connections, on regular interval, that still didn't finish the wire protocol 
> negotiation?



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