You need to post some information about how the transactions are assembled where the deadlock occurs. i.e. What takes part in the transaction(s) and in what order. Like I said before, the deadlock should be detected by jboss if it is purely and EJB issue.
Regards, Adrian On Tue, 2003-07-08 at 15:39, Janardhan Burugupalli wrote: > Thanks adrian... > > > But if i use Instance per Transaction then it slows down everything. > I an using JBoss-3.2.1-Tomcat-4.1.24. > I am recently in the process of moving from Jboss-2.2.2 directly to 3.2.1. > The same tx settings works fine in the previous version with out any dead > lock > but with the new i have this problem. So just by a trial i turned it to > NoLock and not my knowledge. > I am using commit option A > but i dont know what i am missing or ..may be if u can share some of ur > knowledge and experience might help me > > thanks and regards > > jani > > -----Ursprüngliche Nachricht----- > Von: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Auftrag von Adrian > Brock > Gesendet: Dienstag, 8. Juli 2003 14:41 > An: [EMAIL PROTECTED] > Betreff: Re: AW: [JBoss-user] Tx Lock policy problem > > > Deadlocks are caused when two threads access > objects in the opposite order. > > All EJB deadlocks should be detected within > jboss (which version?) except the RequiresNew self deadlock. > Even then, the transaction timeout should roll it back. > > If you are going to use NoLock, you should use the instance > per transaction configuration. > > Regards, > Adrian > > On Tue, 2003-07-08 at 13:55, Janardhan Burugupalli wrote: > > Hi All, > > > > I have a problem with TX locking when i use the QueuedPessimisticEJBLock > the > > application hangs at a point due to TX dead lock but when i use the NoLock > > policy it is working fine. Can any one explain me this as i think it is > not > > good to use the NoLock policy ..but i really dont know how to solve this > > dead lock > > > > the configurations in first and second cases looks like this > > > > firstcase (not working) > > <container-configuration> > > <container-name>Standard CMP EntityBean</container-name> > > ....... > > > > > <locking-policy>org.jboss.ejb.plugins.lock.QueuedPessimisticEJBLock</locking > > -policy> > > > > ........... > > > > > > in the second case (Working) > > <container-configuration> > > <container-name>Standard CMP EntityBean</container-name> > > ....... > > <locking-policy>org.jboss.ejb.plugins.lock.NoLock</locking-policy> > > ......... > > > > Can any one pull me out of this dead lock please....thanks > > > > jani > > > > > > > > ------------------------------------------------------- > > This SF.Net email sponsored by: Free pre-built ASP.NET sites including > > Data Reports, E-commerce, Portals, and Forums are available now. > > Download today and enter to win an XBOX or Visual Studio .NET. > > http://aspnet.click-url.com/go/psa00100006ave/direct;at.asp_061203_01/01 > > _______________________________________________ > > JBoss-user mailing list > > [EMAIL PROTECTED] > > https://lists.sourceforge.net/lists/listinfo/jboss-user > > > > ------------------------------------------------------- > This SF.Net email sponsored by: Free pre-built ASP.NET sites including > Data Reports, E-commerce, Portals, and Forums are available now. > Download today and enter to win an XBOX or Visual Studio .NET. > http://aspnet.click-url.com/go/psa00100006ave/direct;at.asp_061203_01/01 > _______________________________________________ > JBoss-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/jboss-user > > > > > ------------------------------------------------------- > This SF.Net email sponsored by: Free pre-built ASP.NET sites including > Data Reports, E-commerce, Portals, and Forums are available now. > Download today and enter to win an XBOX or Visual Studio .NET. > http://aspnet.click-url.com/go/psa00100006ave/direct;at.asp_061203_01/01 > _______________________________________________ > JBoss-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/jboss-user -- xxxxxxxxxxxxxxxxxxxxxxxx Adrian Brock Director of Support Back Office JBoss Group, LLC xxxxxxxxxxxxxxxxxxxxxxxx ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100006ave/direct;at.asp_061203_01/01 _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
