On Thursday 13 May 2004 02:24, Gonzalo Diethelm wrote:

> 1. Is the assessment that clustering is not well defined within J2EE,
> right?

That is my understanding as well. It is left open, for vendors to compete over 
customers.

> 2. Are there any efforts to improve this state of things by
> defining/improving the standards for clustering?

I don't know.

> 3. Are there any well-known open-source projects attacking the issue of
> clustering within J2EE?

Don't know that either, I am not a fan of J2EE at all and wouldn't touch it 
again  with gloves on  :o)

> 4. What (if any) is Avalon's approach to clustering?  I have never used
> Merlin, but I seem to remember seeing references to clustering in past
> messages.  How is this approached in Merlin?  

Approach is yet to be determined.

> Will it provide a "pluggable"
> (whatever that means in this context) clustering implementation, so that I
> could, for example, develop my cluster-aware app in Jboss and transparently
> deploy it in WebLogic?

Merlin is not some 'J2EE adapter', it is not J2EE server, or in any other way 
related to the J2EE spec (unlike JBoss and Geronimo). So, I have problem to 
see how your request could be related to Merlin.

Some efforts may be spent in the future to implement select parts of the J2EE 
specs into Merlin, probably in the form of a pluggable facility, but it will 
never become an EJB server.


Niclas

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