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Re: [Nmh-workers] Locking. Horrible, horrible, locking ...
From: |
heymanj |
Subject: |
Re: [Nmh-workers] Locking. Horrible, horrible, locking ... |
Date: |
Sun, 30 Jun 2013 21:14:16 -0400 |
On 30 June 2013 at 20:50, Ken Hornstein <address@hidden>wrote:
> >> But I'll give you a concrete example: the filesystem that I use for
> >> $HOME only works right if you use lockf(), but that's a lousy choice
> >> in general.
> >
> >Yes! That's exactly what I was asking for. What is the filesystem?
> >What is the OS? What is the broken behaviour of fcntl/flock/whatever
> >that required you to use lockf()? Details!!! (Please?)
>
> The filesystem in question is AFS (the behavior is uniform across all
> platforms). Short answer is that AFS doesn't support byte-range locking,
> so lock calls that aren't lockf() are ignored.
>
> Although ... it looks like a newer version of AFS might support that;
> I'm not sure we've upgraded everything here to take advantage of it yet.
>
> --Ken
Ken,
I assume you mean
http://help.unc.edu/help/afs-file-locking-issue/
each user would have to enable the 'k' acl for the directories that are
meant to be locked. While I *loved* AFS when I was using it daily, there
were some quirks (locking was one of them) that we had to get around.
jerry
- [Nmh-workers] Locking. Horrible, horrible, locking ..., Lyndon Nerenberg, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Valdis . Kletnieks, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Lyndon Nerenberg, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Ken Hornstein, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Lyndon Nerenberg, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Ken Hornstein, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Lyndon Nerenberg, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Ken Hornstein, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ...,
heymanj <=
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Ken Hornstein, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Lyndon Nerenberg, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Ken Hornstein, 2013/06/30
- Re: [Nmh-workers] Locking. Horrible, horrible, locking ..., Lyndon Nerenberg, 2013/06/30