David, thanks for your help. Digging deeper I found this posting which is explaining things: David Blevins Re: Client/Server Multicast Discovery and Failover http://mail-archives.apache.org/mod_mbox/openejb-dev/200809.mbox/%[email protected]%3e
I think documentation could be based on this posting, missing is how to set up the servers. Looks like clustering needs multicast so I guess I have to persuade sysadms to set up multicast ... Cheers, Juergen djencks wrote: > > 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 >> -- >> View this message in context: >> http://www.nabble.com/State-of-EJB-Clustering-tp24500428s134p24500428.html >> Sent from the Apache Geronimo - Users mailing list archive at >> Nabble.com. >> > > -- View this message in context: http://www.nabble.com/State-of-EJB-Clustering-tp24500428s134p24513215.html Sent from the Apache Geronimo - Users mailing list archive at Nabble.com.
