Hi Jonathan, We're thinking to implement the following optimisation around recovery and want to run it by you first. As discussed, XAResource.recover broadcasts a call to all cluster members, and all the prepared transactions initiated by this node's TM would be returned from this method. What we are thinking is the following: only perform the broadcast once, the first time XARespurce.recover is called. After that keep track of the prepared tx that originated on the same node, and return this list only *without* doing the broadcast. Do you see any problem this approach? One more (unrelated) question: how does a TM determine that a tx pertains to it or not. Based on Xid's branch identifier perhaps? We might do some further optimisations based on this. Cheers, Mircea