[OpenAFS] vos release

[klaas hagemann]

Hi Dan,

how do you handle this problem?
It is no problem to release the Volume later on automatically, but these
long timeouts are bad.

Thanks, Klaas
----- Original Message -----
From: "Dan Pritts" <danno@internet2.edu>
To: "Derek Atkins" <warlord@MIT.EDU>
Cc: "Klaas Hagemann" <kerberos@northsailor.de>; <openafs-info@openafs.org>
Sent: Thursday, August 08, 2002 9:37 PM
Subject: Re: [OpenAFS] vos release


> I can confirm this behavior.
>
> I've used AFS with file servers in different sites, hundreds of
> miles away.
>
> Normally everything went just groovy, but occasionally when the WAN
> links flaked (thanks NYNEX) we would see terrible performance problems
> when doing a vos relase.
>
> If you didn't know what was happening (say, because the vos release
> was part of your useradd script, and it just seemingly hung there
> forever), or just because you were impatient,  and you hit control-c,
> the vos release process would die and the volume would be locked, and
> the replica at the remote site would be hosed.
>
> On Thu, Aug 08, 2002 at 09:02:31AM -0400, Derek Atkins wrote:
> > "Klaas Hagemann" <kerberos@northsailor.de> writes:
> >
> > > - is afs testing automatically, if these dead file servers are online
again
> > >   and syncs the replikas automiatically? or do i have to try it again
and
> > >   again?
> >
> > I do not believe that AFS will retry.  I think you have to unlock and
> > re-release yourself.
> >
> > > - so will the lock in the vldb be released automatically?
> >
> > I do not believe so.  I think you have to unlock manually.
> >
> > AFS was not designed for a _widely_ distributed Cell (where widely
> > distributed means thin pipes between the servers).  It was meant for
> > one site of an Enterprise network, not a Wide Area Network.
> >
> > > Thanks,
> > > Klaas
> >
> > -derek
> >
> > --
> >        Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
> >        Member, MIT Student Information Processing Board  (SIPB)
> >        URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
> >        warlord@MIT.EDU                        PGP key available
> > _______________________________________________
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>
>
> danno
> --
> dan pritts                                       danno@internet2.edu
> systems administrator                            734/352-4953 office
> internet2                                        734/546-4423 mobile
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