Re: [NFS] NFS/krb and batch jobs - doable?

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On Tue, 13 Oct 2009 13:31:38 -0400
Jeff Layton <jlayton@xxxxxxxxxx> wrote:

> On Tue, 13 Oct 2009 08:59:29 -0700
> raini@xxxxxxxxxxxx wrote:
> 
> > 
> > > You and Kevin are correct. rpc.gssd only looks at the mtime. When I did
> > > the work to allow the CIFS SPNGEO upcall to find alternate credcaches,
> > > I implemented the behavior I described (prefer the latest TGT
> > > expiration) -- sorry for the confusion...
> > >
> > > It probably wouldn't be too hard to change rpc.gssd to prefer
> > > credcaches with the latest TGT expiration if it was considered a
> > > desirable change.
> > >
> > > Kevin, any thoughts?
> > 
> > This would be a big plus from me - I still wouldn't be able to create
> > per-job ccaches of course, but if a user who knew they needed to run a job
> > could create a long lifetime renewable ticket in /tmp/krb5cc_<uid>_batch,
> > say, and NFS would use this in preference to a later login ticket, this
> > would really help.
> > 
> > 
> 
> Ok, here's a proposed patch...only compile-tested so far. I don't have
> time at the moment to test it more extensively so if you could test it
> out and report back, that would be helpful.
> 

Looks like this patch will probably break the "preferred realm" code.
It'll have to be respun to fix that, but it should work as expected in
a single-realm environment.

-- 
Jeff Layton <jlayton@xxxxxxxxxx>
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