[omniORB] overview

[Julien Teisseire]

Hi Alex,

I have to do both. Details :
I have 3 pools of 10 servers each.
Each time my process is receiving a request, I have to ask one server on
each group (3 in my example).
Next request will be send also 3 times to different servers on each
groups.

If I well understand, orb can help me to :
1/ load balance between servers inside a pool
2/ multicast pools

Finally, process will have to retrieve results from pools and merge it.

In classical client/server (socket mngt, event, threading, ...) I can do
that.
But is orb adapted for doing that much efficiently ?

Thank you;
Julien


Le jeudi 07 avril 2005 à 14:29 +0100, Alex Tingle a écrit :
> Julien,
> 
> > Is orb helpful for client application asking a pool of servers to get
> > results on specific request.
> 
> Do you want to send a single request to ONE server from the pool, or do 
> you want to send the request to EVERY server in the pool?
> 
> If you want just one server to deal with the request, then it sounds 
> like a load balancing problem. Look at the code for omniMapper (in 
> omni/src/appl/omniMapper) for an example of how to redirect a request 
> to another server. You can use this mechanism (LOCATE_FORWARD) to 
> distribute requests amongst a pool of servers.
> 
> If you want every server in the pool to respond, then you probably need 
> a broadcast mechanism of some kind: you could use the Event Service 
> (omniEvents).
> 
> -Alex Tingle
> 
> --
> Dammit Jim, I'm a programmer... not a mind reader!
> 
> On 7 Apr 2005, at 13:23, Julien Teisseire wrote:
> 
> > Hello,
> >
> > I am totally new regarding how to implement ORB.
> > For a new project I have to start could you please answer to this
> > question :
> > Is orb helpful for client application asking a pool of servers to get
> > results on specific request.
> > Purpose is to ask several servers and wait for answer before merging 
> > it.
> >
> > Orb seams to be perfect if I only add one server, but how to work with
> > the same object but for a pool of servers ?
> >
> > many thanks,
> > Julien
> >
> >
> >
> >
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