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From "Alan D. Cabrera" <...@toolazydogs.com>
Subject RE: Questions on Geronimo clustering support
Date Wed, 06 Oct 2004 11:57:52 GMT


> -----Original Message-----
> From: Jules Gosnell [mailto:jules@coredevelopers.net]
> 
> sissonj@insession.com wrote:
> > Hi,
> >
> > I am trying to get a feel for how EJB/JNDI clustering will be
> implemented
> > in Geronimo and when it might be implemented.
> >
> > I remember reading somewhere in the mail archives that the
clustering
> > module in Geronimo has been abandoned and that ActiveCluster will be
> used.
> >
> >
> > Is it envisaged that another clustering module will be developed or
the
> > existing one changed?
> >
> > Is EJB/JNDI clustering planned to be supported in the Geronimo 1.0
> release
> > or is this non-essential functionality that will be in a later
release?
> 
>  >
>  > Is the WADI project planning on providing EJB Tier clustering in
> addition
>  > to  Web Tier clustering?
>  >
> 
> Yes and No :-)
> 
> I have spoken to some of the OpenEJB people about pushing WADI state
> migration and replication technology back and underneath OpenEJB as
> well, and they seem happy with that, but no concrete moves have been
> made in that direction, as I am still hardeining the code in WADI - I
am
> not expecting this to be in the first Geronimo release, as clustering
is
> not a required piece of the spec.
> 
> As for the JNDI side of things, I have given it some cursory thought,
> but no serious consideration. I am waiting to see how the state
> replication technologies that we shall use will pan out. I am aware of
> how other clustered EJB impls work, so that is a good starting point.
I
> wasn't intending do to this piece of work myself, and haven't spoken
> about it to David Blevins or the other OpenEJB people....

I'm curious.  What's the underlying protocol that WADI uses to maintain
its state/group?  I did a quick cursory look and couldn't find anything.


Regards,
Alan



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