[jboss-as7-dev] Server Group equals Cluster?

[Heiko Braun]

I guess this would a a reasonable addition to the management console.
But as far as aI can tell the low level clustering configuration isn't exposed through the 
management layer yet, is it?

Ike

On Jun 8, 2011, at 3:18 PM, Brian Stansberry wrote:

> Exactly.
> 
> The foundation of the AS's clustering features are JGroups channels 
> where the instance of a channel on a given server discovers its peers 
> and exchange messages in a peer-to-peer topology. That discovery and the 
> ability to properly exchange messages depends on a consistent 
> configuration between the members of the cluster.
> 
> A server group is the logical way to achieve that consistent configuration.
> 
> However, if the user configured two server groups with the same 
> clustering configuration and the servers in the two groups were visible 
> to each other over the network, all the servers would form a single cluster.
> 
> On 6/8/11 5:39 AM, Dimitris Andreadis wrote:
>> AFAIK, a server group translates to a shared configuration and cluster (capability) is
>> orthogonal to a server group. I.e. you could have a cluster span 2 different server groups.
>> 
>> However, in most cases a cluster will be implemented as a server group.
>> 
>> On 08/06/2011 11:19, Heiko Braun wrote:
>>> 
>>> 
>>> Can somebody shed some light on the relation between server groups
>>> (or domains in general) and clustering?
>>> 
>>> 
>>> Ike
>>> 
>>> 
>>> 
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>> 
> 
> 
> -- 
> Brian Stansberry
> Principal Software Engineer
> JBoss by Red Hat
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