[Openais] Connecting to service group/cluster

[Steven Dake]

This has been brought up many times and would probably make a good faq
QA.

Unfortunately we have no suitable answer today to the problem which you
could deploy immediately.  The best solution is that the active
application have a virtual IP address assigned to it and during a
failure, one component of the service unit take over the virtual IP
address using IP address takeover.

This will of course not work for stateful protocols such as TCPIP, but
the application could reconnect if the TCP connection had failed.

I would love to have (and distribute) a component that could be combined
with other components into a SU to execute this takeover operation, but
it has yet to be written.  Someone will eventually write such a
component and submit it for distribution with openais.  Perhaps you :) 

Regards
-steve
 
On Thu, 2006-08-31 at 10:32 +0300, Nimrod Schnabel wrote:
> If I set up service group that is composed from service units running
> on two different nodes when each node has different IP address, how do
> I connect from client to this service, do I use multicast and the
> active service unit will respond or does the client has to be aware to
> the cluster status and address the active service unit?
> 
>  
> 
> Thanks in advance.
> 
>  
> 
> Schnabel Nimrod
> R&D Group leader
> Allot Communications · a mind for networks™
> Tel: +972-9-7619313
> Cell: +972-52-8450192 
> nschnabe at allot.com
> www.allot.com
> 
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