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Date: Wed, 16 Nov 2011 14:11:53 +0000 (UTC)
From: "Timothy Bish (Assigned) (JIRA)" <jira+amqnet@apache.org>
To: dev@activemq.apache.org
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Subject: [jira] [Assigned] (AMQNET-350) Clients using the NMS library
 sometimes hijacks (binds) to the port that ActiveMQ is listening to
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     [ https://issues.apache.org/jira/browse/AMQNET-350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timothy Bish reassigned AMQNET-350:
-----------------------------------

    Assignee: Timothy Bish  (was: Jim Gomes)
    
> Clients using the NMS library sometimes hijacks (binds) to the port that ActiveMQ is listening to
> -------------------------------------------------------------------------------------------------
>
>                 Key: AMQNET-350
>                 URL: https://issues.apache.org/jira/browse/AMQNET-350
>             Project: ActiveMQ .Net
>          Issue Type: Bug
>    Affects Versions: 1.5.0, 1.5.1, 1.5.2
>            Reporter: Frank Gynnild
>            Assignee: Timothy Bish
>
> If we stop ActiveMQ service first, we've sometimes seen that various clients (using the NMS library) binds to the same port as ActiveMQ uses for listening (61616).
> This causes the ActiveMQ service to fail to start since its listening port is occupied.
> Doing a "netstat -a -b" we can see the problem:
> ---
> TCP [fe80::c591:4e66:8992:debb%11]:61616 Gelado:61616 ESTABLISHED
> TestClient.exe]
> ---
> When trying to start ActiveMQ we get this:
> ---
> 2011-11-16 10:27:38,223 | ERROR | Failed to start ActiveMQ JMS Message Broker. Reason: java.io.IOException: Transport Connector could not be registered in JMX: Failed to bind to server socket: tcp://0.0.0.0:61616?keepAlive=true&wireFormat.tightEncodingEnabled=false&wireFormat.cacheEnabled=false&wireFormat.maxInactivityDuration=300000 due to: java.net.SocketException: Unrecognized Windows Sockets error: 0: JVM_Bind | org.apache.activemq.broker.BrokerService | main
> java.io.IOException: Transport Connector could not be registered in JMX: Failed to bind to server socket: tcp://0.0.0.0:61616?keepAlive=true&wireFormat.tightEncodingEnabled=false&wireFormat.cacheEnabled=false&wireFormat.maxInactivityDuration=300000 due to: java.net.SocketException: Unrecognized Windows Sockets error: 0: JVM_Bind
> at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:27)
> at org.apache.activemq.broker.BrokerService.registerConnectorMBean(BrokerService.java:1678)
> at org.apache.activemq.broker.BrokerService.startTransportConnector(BrokerService.java:2166)
> at org.apache.activemq.broker.BrokerService.startAllConnectors(BrokerService.java:2082)
> at org.apache.activemq.broker.BrokerService.start(BrokerService.java:516)
> ---
> When exiting the client process, the ActiveMQ service is able to start up again.
> I had a look at the source code, and I think the bug is inside the TcpTransportFactory.cs:
> {code}
> if(!String.IsNullOrEmpty(location.AbsolutePath) && !location.AbsolutePath.Equals("/"))
> 			{
> 				int index = location.AbsolutePath.IndexOf(':');
> 				try
> 				{
> 					localPort = Int16.Parse(location.AbsolutePath.Substring(index + 1));					
> 					localAddress = location.AbsolutePath.Substring(1, index - 1);
> 					Tracer.DebugFormat("Binding Socket to {0} on port: {1}", localAddress, localPort);
> 				}
> 				catch
> 				{
>             		Tracer.Warn("Invalid Port value on URI for local bind option, ignoring.");
> 				}
> 			}
> {code}

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