multicasting doesnt work for nodes on different VLANs

[raghavendray]

hi,

we have a App server cluster whose nodes are on different VLANs. It has been observed that JBOSS cache doesnt synchronise across these nodes. In effect all the nodes are running on local cache although the cache mode has been set to REPL_SYNC. We are currently using UDP.

Any ideas to how to get the cache working in REPL_SYNC mode in this scenario?

Any help is greatly appreciated.

Thanks
Raghu

[genman]

JBoss Cache is built on top of JGroups.

JGroups has a way to communicate using TCP/IP. I am not really an expert, but you might get this to work.

[manik]

There are several sample JGroups config files in the JGroups distros which use TCP instead of UDP. Just swap out the JGroups section of the JBoss Cache config with one that uses TCP.

See the JGroups docs.