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https://issues.apache.org/activemq/browse/AMQ-1489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary Tully reassigned AMQ-1489:
-------------------------------
Assignee: Gary Tully (was: Rob Davies)
> discoveryUri in transportConnector and uri in networkConnector partially
> ignored if multicast
> ---------------------------------------------------------------------------------------------
>
> Key: AMQ-1489
> URL: https://issues.apache.org/activemq/browse/AMQ-1489
> Project: ActiveMQ
> Issue Type: Bug
> Components: Connector
> Affects Versions: 4.1.1, 5.0.0
> Reporter: Gerald Loeffler
> Assignee: Gary Tully
> Fix For: 5.2.0
>
> Attachments: patchfile.txt
>
>
> This bug relates to the MulticastDiscoveryAgent and was discovered when
> 1. the discoveryUri of a transportConnector is a multicast-uri such as
> {code:xml}
> <transportConnector uri="..." discoveryUri="multicast://239.3.7.0:37000" />
> {code}
> or
> 2. the uri of a networkConnector is a multicast-uri such as
> {code:xml}
> <networkConnector name="..." uri="multicast://239.3.7.0:37000">
> {code}
> In these cases, the uri is partially ignored by the MulticastDiscoveryAgent:
> the host-name of the uri (239.3.7.0) is extracted and used as the group name
> by the MulticastDiscoveryAgent. But the actual multicast group IP is always
> 239.255.2.3 and the multicast port is always 6155, regardless of what the
> actual uri is in the configuration.
> The reason for this is that MulticastDiscoveryAgentFactory creates a new
> MulticastDiscoveryAgent and sets the group based on the uri's host, but fails
> to set the discoveryURI itself. MulticastDiscoveryAgentFactory should be
> corrected to do this:
> {code:java}
> MulticastDiscoveryAgent rc = new MulticastDiscoveryAgent();
> rc.setDiscoveryURI(uri); // missing
> rc.setGroup(uri.getHost());
> {code}
> Without the above setting of the discoveryURI the MulticastDiscoveryAgent
> always uses the DEFAULT_DISCOVERY_URI_STRING which is
> "multicast://239.255.2.3:6155", explaining the erroneous behaviour described
> above.
> kind regards,
> gerald
> http://www.gerald-loeffler.net
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