[OpenAFS] mmap and AFS?

Eric Chris Garrison ecgarris@iupui.edu
Mon, 06 Dec 2010 11:23:27 -0500

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On 12/6/10 9:57 AM, Derrick Brashear wrote:
> On Mon, Dec 6, 2010 at 9:39 AM, Chris Garrison <ecgarris@iupui.edu> wrote:
>> AFS gurus,
>> We have a professor who's hoping to implement our AFS cell (which as a
>> service, we call RFS, the Research File System) as his department's solution
>> for user home directories.  After working on this awhile, he thinks there
>> may be a show-stopper.  Is there an problem with using AFS with applications
>> that use mmap to solve IO-bound issues?
>> We are running OpenAFS 1.4.11 on the server, and I am not sure what he is
>> running on the client side, but I'd imagine it's the latest stable one on
>> the openafs.org site.  I'm also not sure which type/version/kernel of Linux
>> he's running on the server end.
> Asking would be better than imagining as some versions of the Linux
> client had issues with mmap()

I was mistaken about him running Linux.  It turns out he's on Mac OS X
Snow Leopard, using Claudio Bisegni's AFS Commander as a GUI interface.
 He's added as a side problem that kerberos tickets do not seem to
autorenew like he needs for long-running jobs.

He does not know what version of the AFS client he's running, though it
was one from the last few months.

Thanks again.

Eric Chris Garrison             | Principal Mass Storage Specialist
ecgarris@iupui.edu              | Indiana University - Research Storage
W: 317-278-1207 M: 317-250-8649 | Jabber IM: ecgarris@iupui.edu

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