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From Jules Gosnell <>
Subject Re: Clustering
Date Tue, 01 Nov 2005 16:37:53 GMT
The cluster module in the repo is out of date.

Conversation about clustering is going on on geronimo-dev.

With my Geronimo hat on:

We hope to start providing some form of clustering fn-ality by the G-1.0 
release. This will probably initially be web-only, although the OpenEjb 
team are involved in discussions about what we can do with EJB.

With my WADI ( hat on:

We hope to get a WADI technology preview release into G-1.0. This will 
provide some form of HttpSession clustering. We hope that OpenEJB SFSBs 
will soon be able to reuse WADI infrastructure to become distributable 
as well. WADI uses a distributed hash table (Sessions are stored in a 
logical Map. The Map would be too large for a single node to hold, so, 
physically, the buckets of this Map are held on different nodes. Each 
node knows who owns each bucket and in this way can ensure that requests 
and sessions meet somewhere within the cluster to maintain proper 
service.). For more info see or jump on our 
user list and ask questions.



Arun Venugopal wrote:

> Hi,
> I am doing a comparison study of different application servers. I saw 
> one module on clustering in the source code. I would like to know if 
> that code is functional or if it is meant simply as an API. Also if it 
> is functional, then how can i test it ?
> Thanks and regards
> Arun
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"Open Source is a self-assembling organism. You dangle a piece of
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crystallises out around it."

 * Jules Gosnell
 * Partner
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 * Open Source Training & Support.

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