[jboss-jira] [JBoss JIRA] Commented: (JGRP-627) Enabling JMX when using multiplexer.

Bela Ban (JIRA) jira-events at lists.jboss.org
Tue Nov 20 07:44:28 EST 2007


    [ http://jira.jboss.com/jira/browse/JGRP-627?page=comments#action_12388402 ] 
            
Bela Ban commented on JGRP-627:
-------------------------------

You're right. I changed the default domain to "jgroups", "jgroups:name=Multiplexer" is not a valid domain.
The 2 channels (below) are now actually registered with the MBeanServer in exactly the same way as regular channels.

       JChannel c1, c2;
        JChannelFactory factory=new JChannelFactory();
        factory.setMultiplexerConfig("stacks.xml");

        c1=(JChannel)factory.createMultiplexerChannel("udp", "one");
        c2=(JChannel)factory.createMultiplexerChannel("udp", "two");

        c1.connect("x");
        c2.connect("y");
        factory.create();

        MBeanServer server=MBeanServerFactory.findMBeanServer(null).get(0);
        JmxConfigurator.registerChannel(c1, server, factory.getDomain(), "one", true);
        JmxConfigurator.registerChannel(c2, server, factory.getDomain(), "two", true);

        Util.sleep(60000);

> Enabling JMX when using multiplexer.
> ------------------------------------
>
>                 Key: JGRP-627
>                 URL: http://jira.jboss.com/jira/browse/JGRP-627
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 2.6
>            Reporter: Robert Newson
>         Assigned To: Bela Ban
>             Fix For: 2.7, 2.6.1
>
>
> While debugging other issues (the disparity between cluster views and service views), I attempted to add JMX support. However, having looked at the code, it turns out that ObjectNames are formed incorrectly.
> Caused by: javax.management.MalformedObjectNameException: Invalid character ':' in value part of property
> 	at javax.management.ObjectName.construct(ObjectName.java:602)
> 	at javax.management.ObjectName.<init>(ObjectName.java:1394)
> 	at org.jgroups.jmx.JmxConfigurator.registerChannel(JmxConfigurator.java:55)
> 	at org.jgroups.jmx.JmxConfigurator.registerChannel(JmxConfigurator.java:41)
> 	at org.jgroups.JChannelFactory.registerChannel(JChannelFactory.java:383)
> 	at org.jgroups.JChannelFactory.createMultiplexerChannel(JChannelFactory.java:297)
> 	at org.jgroups.JChannelFactory.createMultiplexerChannel(JChannelFactory.java:280)
> It's attempting an ObjectName of the form "jgroups:name=Multiplexer:type=channel,cluster=blah" which is illegal.
> I enabled JMX by calling;
> channelFactory.setExposeChannels(true);
> channelFactory.create();
> Am I doing this wrong or does the JMX registration simply not work?
> I can work around this with;
> channelFactory.setDomain("jgroups")
> but this doesn't group the JMX beans in the way the code intends.

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