Do you have any test case we can look into? This should have worked. also, can you attach activemq configuration file from you deploy folder? Basic clustering support is provided by JMS broker along with new FUSE ESB 4 clustering engine.
Apolozies for the late reply!
The activemq broker config I use is the same as the one shipped. I use the JMS.xml files from the NMR-Cluster example.
Basically I take that example, and instead of camel and quartz config files, I have two servicemix-bean based POJOs. The jms.xml and cluster.xml files remain the same.
Please note that I am running 4.0.0 version.