[jboss-jira] [JBoss JIRA] Commented: (JBAS-4481) Transaction timeouts leave garbage Status.ROLLEDBACK UserTransaction object bound to the thread

[ http://jira.jboss.com/jira/browse/JBAS-4481?page=comments#action_12365157 ] Mark Little commented on JBAS-4481: ----------------------------------- In a multi-threaded environment where multiple threads may be running in the scope of the same transaction you can't just arbitrarily change the transaction association for a running thread. That would be *bad* for the application and potentially consistency. What JBossTS does (and has always done) is roll back the transaction that has timed out and leave it associated with the various threads. Those threads can then determine that the transaction has terminated and do whatever makes sense in terms of cleanup for them before breaking the association via UT or TM commit, rollback or suspend. There is no other portable way of doing this. Plus, XA checked transaction semantics actually make it illegal for any thread other than the creating/resuming thread to change the association for itself. Your application thread(s) doesn't have to do anything special about a timed-out transaction that it wouldn't normally do anyway, i.e., it just needs to terminate the transaction when it's finished with it. Your code is either going to call commit or rollback anyway before putting the thread back into the pool. That will still do the disassociation for you. The old JBossTM code used to mark the transaction as rollback-only, which wouldn't do the thread-to-transaction disassociation (at least from within the JTA). I haven't looked at that bit of the code in a while, but if it also changed the association then that's a non-portable implementation choice beyond what the specification defines. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira