"timfox" wrote : Ah no. We only return RD_ONLY if there the tx is completely empty, including non persistent operations, so yes I think we need to record a blank tx branch in the journal. Besides.. if we choose to store a Prepare Record for an Empty Transaction, we would need the commit as we need the CompletionRecord of the Prepare as we need that in order to reclaim files. So, if you add a PrepareRecord, you need a CommitRecord or you would break reclaiming. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4175044#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...