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Re: svn up after svn mv, access is denied error, w2k client

From: James Van Artsdalen <james_at_jrv.org>
Date: 2003-10-20 18:16:05 CEST

http://subversion.tigris.org/servlets/ReadMsg?list=dev&msgId=294996

Filemon at http://www.sysinternals.com/ntw2k/source/filemon.shtm is
extremely useful for looking at this.

SVN fails for me using BDB 4.0.14 in commit concurrency testing either
with multi-processor FreeBSD or uniprocessor Windows XP. This means
that if I run a test script 100,000 times it will succeed but if I run
four at the same time they will run far fewer than 25,000 times each
before Something Goes Wrong.

> can you point me to some details about the "well understood" issue? i'm not sure if i can
> understand it.
>
> btw, in another message you mentioned something about "rumors bdb does not work in multiprocessor
> environments" (on unix/linux). this might be true for subversion and dbd 4.1 (as i remember, we
> experienced problems independent of number of processors, and subversion version).
>
> but 4.0 works. with large repositories, and many users.
>
> --- James Van Artsdalen <james-tigris@jrv.org> wrote:
> > No. These are not the same issues.
> >
> > The .svn problem was that some applications couldn't handle leading
> > dots in filenames. Windows (the operating system) was fine here.
> >
> > The problem below is a Windows issue. Windows can apparently return
> > the error ERROR_ACCESS_DENIED for both temporary (the case SVN usually
> > runs into) and permanent errors. A simple loop attempting to rename
> > or delete a file would solve this, except that there is no way to
> > tell if the failure was permanent in the first place.
> >
> > The cause of this is well understood now (and it is not SVN related)
> > but what to do about it is unclear.
> >
> > Date: Sat, 18 Oct 2003 02:51:32 -0700 (PDT)
> > From: solo turn <soloturn99@yahoo.com>
> > Subject: svn up after svn mv, access is denied error, w2k client
> >
> > strange ... we did not experience this error till one/two month ago or
> > so? might it be related to the "hide .svn"?
> >
> > --- Philip Martin <philip@codematters.co.uk> wrote:
> > > solo turn <soloturn99@yahoo.com> writes:
> > >
> > > > svn: Access is denied.
> > > > svn: svn_io_remove_dir: removing `tch/uid-mk/.svn'
> > >
> > > > what can be the cause?
> > >
> > > Using Windows ;-)
> > >
> > > It's a MoveFileEx error, we don't really know why it occurs, there is
> > > a fair bit of discussion in the archive.
> > >
> > > --
> > > Philip Martin
> >
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>
>
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Received on Mon Oct 20 18:33:40 2003

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