On 2002.02.21 17:38:35 -0500 Bill Burke wrote: > Hey, thanks for replying....Comments are in-lined. likewise > > > -----Original Message----- > > From: David Jencks [mailto:[EMAIL PROTECTED]] > > Sent: Thursday, February 21, 2002 5:25 PM > > To: Bill Burke > > Cc: Jboss-Dev > > Subject: Re: [JBoss-dev] Bug?: no rollback on tx timeout > > > > > > OK, now I'm confused. Looking at (some of) the code I would think > that: > > > > 1. If nothing is hanging, just taking a really long time, when it all > gets > > done the tx will be rolled back just fine, and all resources released. > > > > Yeah, that's not the problem though
I figured as much... > > > 2. If the db call is hanging, the tx will be marked for rollback, > > but since > > the db call is waiting and waiting, nothing will ever be > > released. I would > > expect that calling rollback on the tx would have essentially no > effect, > > since the "active" thread is waiting for IO. I'm no threading expert, > but > > I can't find any way of communicating with the hung thread to force it > to > > return. > > > > You have a point. Calling rollback from a different thread would just > hang > the TimeOut thread as well. Is that what you're saying? > > I'm pretty sure that in JDK 1.3.x, there is no way of interrupting a > thread > waiting for IO. I've tried it before without success. Can somebody back > me > up on that statement? "The Java Programming Language, 3rd ed." says that pretty explicitly, so I think even if you found a way that worked sometimes it would be almost certain to not work other times. > > Hmmmm so the real solution is release the EntityBean locks. How can I do > this generically though? Hmmm also, maybe we have to put all the entities back into the GlobalTxEntityMap with a flag saying if they are dirty so it can be used both for the read-only and for killing all the locks in this tx timeout case. Or maybe we need 2 maps here...??? david jencks > > Bill > > > _______________________________________________ Jboss-development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
