Ok. I'll try that.

> -----Original Message-----
> From: Oliver Zeigermann [mailto:[EMAIL PROTECTED] 
> Sent: Wednesday, December 15, 2004 7:04 PM
> To: Slide Developers Mailing List
> Subject: Re: New feature for internally repeating conflicting requests
> 
> 
> It should not deadlock when you have sequential-mode as 
> "full" turned on. That's the way to go for 2.1...
> 
> Oliver
> 
> 
> On Wed, 15 Dec 2004 13:34:22 -0800, Warwick Burrows 
> <[EMAIL PROTECTED]> wrote:
> > 
> > I agree with you about new features and 2.1. Unfortunately 
> my company 
> > can't go into QA or production with -911 errors failing our 
> > transactions so I will just have to keep any changes I make to fix 
> > this problem with 2.1 in my own sandbox and won't submit them back 
> > unless they apply to the HEAD. Then I will have to wait until 2.2 
> > before I can sync my tree up with CVS again. And if that's 
> the way it 
> > has to be then I'm fine with that.
> > 
> > My concern is that the Slide 2.1 release is not suitable for any 
> > scenarios where load is important while this problem is 
> outstanding in 
> > the 2.1 tree. Though I agree your solution is a feature, it 
> could also 
> > be considered as a bug fix since Slide returns a 500 error when it 
> > gets this exception and applications don't have a way to deal with 
> > that.
> > 
> > Warwick
> > 
> > > -----Original Message-----
> > > From: Oliver Zeigermann [mailto:[EMAIL PROTECTED]
> > > Sent: Wednesday, December 15, 2004 10:59 AM
> > > To: Slide Developers Mailing List
> > > Subject: Re: New feature for internally repeating conflicting 
> > > requests
> > >
> > >
> > > On Wed, 15 Dec 2004 17:07:26 +0100, Oliver Zeigermann 
> > > <[EMAIL PROTECTED]> wrote:
> > > > On Wed, 15 Dec 2004 16:55:58 +0100, Oliver Zeigermann 
> > > > <[EMAIL PROTECTED]> wrote:
> > > > > On Tue, 14 Dec 2004 17:52:02 -0800, Warwick Burrows 
> > > > > <[EMAIL PROTECTED]> wrote:
> > > > > > > > A real problem is that the ConcurrencyConflictException
> > > > > > > doesn't make
> > > > > > > > it past LockMethod when it bubbles up from the store. In
> > > > > > > > LockMethod its caught in a generic Exception 
> catch block at
> > > > > > > > line 368 and converted into a WebdavException. This
> > > may happen
> > > > > > > > in other methods too. Had you looked at all
> > > > > > >
> > > > > > > Have you considered this:
> > > > > > >
> > > > > > > public class ConcurrencyConflictException extends
> > > > > > >         /*
> > > > > > >          * XXX: this must be an error to ensure it
> > > gets caught
> > > > > > > in the webdav
> > > > > > >          * layer only
> > > > > > >          */Error {
> > > > > > >
> > > > > > > Line 368 catches an Exception, not an Error, that's
> > > the trick ;)
> > > > > >
> > > > > > And it would be great except that 
> AbstractStore.java catches 
> > > > > > "throwables" including Errors and is wrapping the Error
> > > inside a
> > > > > > ServiceAccessException which is then thrown back to 
> > > > > > LockMethod.
> > > > >
> > > > > Argh! You are right! I was only provoking to throw this 
> > > > > exception from the core. I'd say the problem is in 
> > > > > AbstractStore,
> > > it certainly
> > > > > should not catch errors...
> > > > >
> > > > > > I need to fix this concurrency issue in Slide so we can go 
> > > > > > into our QA load test phase next week :-)  I was trying to 
> > > > > > work back from the changes you had made to 
> > > > > > AbstractWebdavMethod
> > > and the db
> > > > > > stores for this retry feature but really need a list of
> > > the files
> > > > > > you changed so I can merge them back into our 2.1
> > > source tree. I
> > > > > > don't have the submission logs for the defects you
> > > submitted for
> > > > > > this feature.
> > > > >
> > > > > We not go for CVS head then?
> > > >
> > > > One more reason for you to stick to the CVS head for new
> > > features is
> > > > shown by this issue. There will be no support for this
> > > retry feature
> > > > in 2.1 and it isn't even alpha, yet (as we have seen). 
> It needs to 
> > > > evolve and mature with a full 2.2 release cycle.
> > >
> > > Still another example of the worth of community based open 
> > > development. I implement a new feature in the open, others 
> > > contribute like you and finally it gets going. So, do not create 
> > > your own branch...
> > >
> > > Oliver
> > >
> > > 
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> > 
> > 
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