"manik.surtani(a)jboss.com" wrote : I'm thinking of something which can be swapped in place of the Pessimistic/OptimisticLockInterceptor (DistPess/OptLockInterceptors?) which in addition to obtaining local locks, uses a methodcall broadcast to replicate lock() methodcalls up remote stacks. It would be nice to be able to make this more explicit and hence fine-grained. E.g. I have some data structure that maps to a subset of the tree. At the beginning of a tx I call lock("/session/123") which results in a broadcast, but thereafter no other actions I take that send out any cluster-wide messages. Assuming the lock() call results in a WL, the presence of the WL protects the rest of the subtree for the duration of the tx. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4027297#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...