1 Reply Latest reply on Feb 1, 2011 2:13 AM by Wolf-Dieter Fink

    Multicasting with JBoss

    Willem Noorduin Newbie

      I noticed that you can start JBoss with the -u <MULTICAST-ADDRESS> -m <MULTICAST-PORT> flags. Can someone tell me what information is transmitted over this multicast address. Clustering seems to work fine without these flags (for instance, farm deployments), but I suspect it has something to do with "Keeping each other alive"/

        • 1. Multicasting with JBoss
          Wolf-Dieter Fink Master

          With -u -m and -g you tell JBoss (JGroups) how to join a cluster.

          If all three values the same (multicastaddress/port and partition name) two (or more) instances will build a cluster.


          The multicast will used by JGroups to join in or part from a cluster if the instance is started or stopped.

          During the lifetime controlinformations are send to check whether all members are alive.

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