ooh.  that is an endevaour that I am not sure if I am
capable of undertaking.  I will have to later on but
not right now due to my time constraints.

I was hoping for a lively discussion to ensue and
somehow magically the function would show up in
phoenix or something couple of days later. ;-)

But I see that is not how it works.   But as I come
across a working solution, I will continue to
contribute to mailing list and solicit feedback within
the framwork context.






--- Peter Donald <[EMAIL PROTECTED]> wrote:
> On Thu, 20 Mar 2003 02:18, sadaf zargeen wrote:
> > This is a message orient application.  To properly
> > fail-over I would have one instance that is
> servicing
> > requests. Upon failure, the stand-by server(s)
> would
> > detect failure, negotiate its status to come up as
> the
> > primary server amongst possibly other servers and
> > start servicing request by picking up where the
> other
> > applicaiton left off.   Naturaly this carries many
> > implications some of which are:
> > - how to negotiate being primary server? rating
> > system?
> > - how to know where to "pick up"? does this mean
> > sharing  application state? does this mean sharing
> > user session state?
> > - if sharing state, using central state/session
> > repository(possibly slow, single point of failure)
> or
> > publishing state/session to all other servers
> > periodically.
> > - what to use as the communication protocol
> amongst
> > servers? socket, jmx(openJMX implementation eg).
> 
> This is all interesting questions and I would say
> that the best way to do this 
> is to use an application that accesses JMX to do it.
> We have discussed it 
> before on one of the mailing lists here but I can't
> seem to find it atm.
> 
> Anyways there is not currently anything in avalon to
> do this. If you create 
> something and want to contribute it then I am more
> then interested in hearing 
> about it and including it if you want ;)
> 
> -- 
> Cheers,
> 
> Peter Donald
> Doubt is not a pleasant condition, but certainty is
> absurd.
>                 -- Voltaire 
> 
> 
>
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