There used to be a TreeCache.putData(Map m, boolean erase) operation at some point which I thought was optimized, but in reality there's only put(Map) and put(K, V) type operations that do merges. I'm trying to simply store a bunch of associations which should overwrite any existing data, and I'm getting bad performance, since every put() operation forces a read. Even the "clearData" operation forces a read. Any hints? There is a Node.replaceAll but requires loading the node first. I'd like to see Cache.replaceAll() operation at some point. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4187084#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...