I've attached logs to the JIRA I created, which have the thread name. I've logged the following categories, which if your loggers names are all the class name should include the MVCCLockingInteceptor you asked for. If there's any other categories that would be helpful, just let me know. log4j.logger.org.jboss.cache.interceptors=TRACE, JBossAppender log4j.logger.org.jboss.cache.lock=TRACE, JBossAppender View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4209138#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...