[jbosscache-dev] Re: Anycast

[Manik Surtani]

Not the way the RPCDispatcher in JGroups works.  I always pass in a  
List of buddies, and usually this list would have 1 element (if  
n=1).  Either way, even if n=3 in a 500 node cluster the multicast is  
inefficient.

(moving this to the JBC dev list)
--
Manik Surtani

Lead, JBoss Cache
JBoss, a division of Red Hat

Email: manik at jboss.org
Telephone: +44 7786 702 706
MSN: manik at surtani.org
Yahoo/AIM/Skype: maniksurtani


On 5 Oct 2006, at 11:58, Ben Wang wrote:

> I thought for BR, we do unicast now when there is only one buddy  
> (the default) and switch to multicast where is more than one?
>
> From: Bela Ban
> Sent: Thursday, October 05, 2006 2:53 PM
> To: Ben Wang; Brian Stansberry; Manik Surtani; Vladimir Blagojevic;  
> Galder Zamarreno
> Subject: Anycast
>
> FYI,
>
> currently, buddy replication generates the *same* amount of traffic  
> as multicasting to everyone. I created a JIRA issue, anycast, which  
> when implemented will allow for sending of messages to a subset of  
> the membership: http://jira.jboss.com/jira/browse/JGRP-338
> -- 
> Bela Ban
> Lead JGroups / Manager JBoss Clustering Group
> JBoss - a division of Red Hat

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