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From "Gary Tully (JIRA)" <>
Subject [jira] Commented: (AMQ-2771) Side effect from AMQ-2094, server listens on host name address, client connects to localhost with the same URI
Date Fri, 11 Jun 2010 14:50:53 GMT


Gary Tully commented on AMQ-2771:

on the setUseLocalHost, that can be set from the uri via a parameter, it will be set via introspection/reflection

> Side effect from AMQ-2094, server listens on host name address, client connects to localhost
with the same URI
> --------------------------------------------------------------------------------------------------------------
>                 Key: AMQ-2771
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Wish
>    Affects Versions: 5.3.0, 5.3.1, 5.3.2
>            Reporter: Przemek Bruski
>         Attachments:
> contains the following code:
> {code}
>     protected String resolveHostName(String host) throws UnknownHostException {
>         String localName = InetAddress.getLocalHost().getHostName();
>         if (localName != null && isUseLocalHost()) {
>             if (localName.equals(host)) {
>                 return "localhost";
>             }
>         }
>         return host;
>     }
> {code}
> contains the following code:
> {code}
>         InetAddress addr = InetAddress.getByName(host);
>         try {
>             this.serverSocket = serverSocketFactory.createServerSocket(bind.getPort(),
backlog, addr);
> {code}
> /etc/hosts looks like this:
> {code}
>       localhost.localdomain   localhost
> someip       myhostname.mydomain myhostname
> {code}
> Now, if I start server with uri: myhostname.mydomain, the server will listen on someip
but the client started on the same host with the same uri will try connect to localhost (and
> I know that useLocalHost can be used to avoid it, but silently connecting to localhost
is counterintuitive and does not sound like a valid default behaviour (according to documentation,
using localhost instead of the host name is a workaround, the workaround is now effectively
default behaviour and breaks valid setups that used to work with 5.2).
> This worked fine on 5.2, since the server bound to all interfaces - but fixing this was
obviously the right thing to do.
> Questions:
> 1. Can the default behaviour be changed to one that would work on majority of systems?
> 2. Is the workaround really needed? Maybe it's the local network settings that should
be corrected?
> 3. The debug messages are misleading and probably should be changed:
> [ActiveMQ Task] [FailoverTransport:604] urlList connectionList:[tcp://hostname:54663?wireFormat.maxInactivityDuration=300000]
> [ActiveMQ Task] [FailoverTransport:723] Attempting connect to: tcp://hostname:54663?wireFormat.maxInactivityDuration=300000
> [ActiveMQ Task] [FailoverTransport:764] Connect fail to: tcp://hostname:54663?wireFormat.maxInactivityDuration=300000,
reason: Connection refused
> In fact, it was the connection to localhost:54663 that was refused.

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