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From "Jim Gomes (JIRA)" <jira+amq...@apache.org>
Subject [jira] Reopened: (AMQNET-160) Connecting to non-existing host does not raise Exception when using failover protocol
Date Tue, 02 Jun 2009 22:43:51 GMT

     [ https://issues.apache.org/activemq/browse/AMQNET-160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jim Gomes reopened AMQNET-160:
------------------------------


> Connecting to non-existing host does not raise Exception when using failover protocol
> -------------------------------------------------------------------------------------
>
>                 Key: AMQNET-160
>                 URL: https://issues.apache.org/activemq/browse/AMQNET-160
>             Project: ActiveMQ .Net
>          Issue Type: Bug
>          Components: ActiveMQ Client
>    Affects Versions: 1.0
>         Environment: Windows XP/Windows 2003 , .NET Framework 2.0 (Broker running Ubuntu
8.04 + ActiveMQ 5.2)
>            Reporter: Michel Van Hoof
>            Assignee: Jim Gomes
>             Fix For: 1.1
>
>
> When using the failover protocol, there is no exception raised when trying to connect
to non-existing host.
> Example:
> using System;
> using System.Collections.Generic;
> using System.Text;
> using Apache.NMS;
> using Apache.NMS.ActiveMQ;
>     class ExceptionTest
>     {
>         private readonly IConnectionFactory oConnfact;
>         private readonly IConnection oConn;
>         private readonly ISession oSess;
>         private readonly IMessageConsumer oConsumer;
>         private string sConnectionUri = "failover:(tcp://unknownhost:61612)";
>         // Using this connectionstring it does fail.
>         //private string sConnectionUri = "tcp://unknownhost:61612";
>         public ExceptionTest()
>         {
>             oConn.ExceptionListener += new ExceptionListener(OnException);
>             this.oConnfact = new ConnectionFactory(sConnectionUri, "CLIENT.ID");
>            
>             oConn.ExceptionListener += new ExceptionListener(OnException);
>             this.oConn = oConnfact.CreateConnection();
>             oConn.RequestTimeout(new TimeSpan(0, 0, 2)); 
>             // Code hangs here
>             oConn.Start();
>             //Rest does not really mather anymore since it hangs
>             
>         }
>         void OnEx(Exception exception)
>         {
>                 throw new Exception("The method or operation is not implemented.");
>         }
>         public void OnException(Exception ex)
>         {
>             Console.WriteLine("You made a BooBoo: {0} ", ex.ToString());
>         }
>     }
> If you change the connectionstring to "tcp://badhostname:xxxx" , the exception does occur.

> It also seems to ignore the RequestTimeout.
> This blocks the application thread indefinately since there is no way to recover from
it (no exception thrown).

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