Reliable multicast protocols for activemq?

[ariekenb]

I'm trying to understand if any reliable multicast protocols currently exist for activemq. 

According to this page http://activemq.apache.org/topologies.html activemq supports jgroups and jrms protocols for transport connectors.

However if I try configuring jgroups or jrms in either the Apache ActiveMQ 5.4.2 or FUSE ActiveMQ 5.4.2, I get "transport scheme not recognized" exceptions at startup and the broker dies:

2011-01-03 15:22:48,560 | ERROR | Failed to start ActiveMQ JMS Message Broker. Reason: java.io.IOException: Transport Connector could not be registered in JMX: Transport scheme NOT recognized: jgroups | org.apache.activemq.broker.BrokerService | main

2011-01-03 15:24:05,345 | ERROR | Failed to start ActiveMQ JMS Message Broker. Reason: java.io.IOException: Transport Connector could not be registered in JMX: Transport scheme NOT recognized: jrms | org.apache.activemq.broker.BrokerService | main

I've also found documentation about a project called ActiveBlaze: http://activemq.apache.org/apache-activeblaze.html  However ActiveBlaze classes are not included with the Apache or FUSE ActiveMQ 5.4.2 releases.  Has ActiveBlaze been released yet?

Are there currently any working reliable multicast options for ActiveMQ?

Edited by: ariekenb on Jan 6, 2011 3:08 PM

[garytully]

There are no real options at the moment. The jgroups stuff never got ported to apache due to the LGPL license[1] and ActiveBlaze has been on the back burner lately.

I think the most likely place for such a feature would be Apollo, the 'jedi' transport, some variant of https://issues.apache.org/jira/browse/AMQ-816

Currently in ActiveMQ, multicast is used solely as a discovery mechanism.

What is your use case?

http://mail-archives.apache.org/mod_mbox/activemq-users/200702.mbox/[e-mail]%3E-users/200702.mbox/[e-mail]%3E