On 2002.08.31 08:54:02 -0400 Marius Kotsbak wrote: > David Jencks wrote: > > >The message warns you that if your transaction fails your data may be > left > >in an inconsistent state. You have more than one participant in a jta > >transaction, but one of them only supports local transactions without > two > >phase commit. > > > Is two phase commit needed when JMS is running in the same VM as jboss > (and DB on the same host)? What wrong can happen and when?
yes. The server can still fail when one rm has commmitted and the other hasn't. > > > > >The warning might be excessive at this point since in order to recover > from > >such failures you would need to run tyrex as your tm and use a jms > provider > >that supported recovery which I believe jbossmq does not. > > > So it doesn't make anything better by changing to a XA-compatible DB? It is somewhat better, you get correct results automatically if one rm won't prepare but nothing crashes. If something crashes, you can still probably recover manually if each resource lets you look at the prepared/not committed transactions and deal with them individually. You can't recover automatically however. david > > > > >thanks > >david jencks > > > >On 2002.08.31 02:16:28 -0400 Michael Bartmann wrote > > > >>G.L. Grobe wrote: > >> > >> > >>>Anyone know what this warning means? It doesn't seem to be affecting > my > >>> > >>> > >>>app and the update actually works. This update is done within a MDB. > >>> > >>> 23:09:29,546 WARN > >>>[LocalTxConnectionManager$LocalConnectionEventListener] prepare called > > >>>on a local tx. You are not getting the semantics you expect! > >>>It occurs just after a successful pstmt.executeUpdate() ... > >>> > >>> > >>> > >>I got this when I used local-tx Datasource with a XA-tx JMS Provider > >>together in one MDB transaction context (under Branch_3_2). > >>When JBoss saw the JMS Provider providing XA it tried to use XA on the > >>Datasource which didn't implement this, so the fallback to local tx > >>went in and complained. > >>When I got back form XA-tx-JMS to local-tx-JMS these messages went > away. > >> > >>So far I dont know if this is considered a bug, or is something you > cant > >>avoid, cause the tx-manager tried to use the "best technique available" > >>and fell back later on when another ressource didn't support it. > >>Could it have known it before? I'm not an expert on these issues. > >>At least I would think JBoss complains too hard cause I never > explicitly > >>requested using XA. > >> > >>Enjoy, > >>Michael > >> > >> > >> > >>------------------------------------------------------- > >>This sf.net email is sponsored by: OSDN - Tired of that same old > >>cell phone? Get a new here for FREE! > >>https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 > >>_______________________________________________ > >>JBoss-user mailing list > >>[EMAIL PROTECTED] > >>https://lists.sourceforge.net/lists/listinfo/jboss-user > >> > >> > >> > >> > > > > > >------------------------------------------------------- > >This sf.net email is sponsored by: OSDN - Tired of that same old > >cell phone? Get a new here for FREE! > >https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 > >_______________________________________________ > >JBoss-user mailing list > >[EMAIL PROTECTED] > >https://lists.sourceforge.net/lists/listinfo/jboss-user > > > > > > > > > > ------------------------------------------------------- > This sf.net email is sponsored by: OSDN - Tired of that same old > cell phone? Get a new here for FREE! > https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 > _______________________________________________ > JBoss-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/jboss-user > > ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
