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List:       dav-dev
Subject:    RE: [dav-dev] Disparition of a file...
From:       "Bennett, Tony - CNF" <Bennett.Tony () cnf ! com>
Date:       2002-11-27 0:26:54
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I can't speak for Greg, but assuming
normal file system operation, once you
open a file (with truncate), if you have 
an error before you finish writing to the file,
then it is corrupted.  

So it appears there are three options:
  - Save an copy of an existing file, which
    will be restored in the event of error
    and deleted in the event of no error
  - Leave the file as-is when the error 
    occurs (i.e. corrupted)
  - Delete the file.

None of the options are particularly pleasing.

-tony

> -----Original Message-----
> From: Joe Orton [mailto:jorton@redhat.com] 
> Sent: Tuesday, November 26, 2002 2:07 AM
> To: dav-dev@lyra.org
> Cc: Vincent Demarcus
> Subject: Re: [dav-dev] Disparition of a file...
> 
> 
> On Tue, Nov 26, 2002 at 09:19:42AM +0000, Joe Orton wrote:
> > That is the request which stands out, something has gone 
> wrong here to
> > get a 400 Bad Request - what client is being used here? 
> It's conceivable
> > that an error handling bug here could have deleted the 
> file.  Was there
> > an error_log entry associated with this request? Everything relevant
> > after here got a 404 Not Found so this PUT is the most 
> likely culprit.
> 
> Hmmm, yeah, the file is removed if there is an error during a 
> PUT (like
> a request timeout), which is kind of strange - I'm not sure what the
> motivation for this is.  Greg? 
> 
> It would seem less surprising to users to just leave a (possibly
> partially intact) file than to remove it completely.
> 
> joe
> _______________________________________________
> dav-dev maillist  -  dav-dev@lyra.org
> http://dav.lyra.org/mailman/listinfo/dav-dev
> 
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