From: Marius K. <ma...@bo...> - 2002-08-31 12:54:13
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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? > >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? > >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 >>JBo...@li... >>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 >JBo...@li... >https://lists.sourceforge.net/lists/listinfo/jboss-user > > |