Hi Juergen,

GCache never got finished.

The wadi clustering works but is for stateful beans and AFAIK it provides only the state replication between cluster members and not the client that supports failover. I hope Gianny will tell me if I'm wrong about this :-)

We do have the kind of clustering you want but I'm not sure if its documented. Basically the server cluster members maintain cluster membership information using multicast hearbeats and the ejb client maintains a list of servers and can change target server based on availability.

There is an example of this at sandbox/failover and it used to work, but AFAIK no one has tried running it for several months.

This would be a great thing to turn into a sample and make more public and documented for 2.2.

thanks
david jencks


On Jul 15, 2009, at 8:34 AM, Juergen Weber wrote:


Hi,

what is the state of Geronimo's EJB clustering?

Basically I wonder if it is possible to have n Java application clients that
address m servers that run stateless beans. A client should stick to a
server as long it is alive and transparently go to another one if it is
dead.

Is this information here still current for 2.2?
http://cwiki.apache.org/GMOxDEV/test-drive-geronimo-ejb- clustering.html

Or would GGache be the way to go?
http://cwiki.apache.org/GMOxDEV/geronimo-clustering-with-gcache.html

Thanks,
Juergen
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