Re: [Condor-users] AFS & Condor

[Erik Paulson <epaulson@xxxxxxxxxxx>]

On Fri, Feb 18, 2005 at 11:15:14PM +0100, Steffen Grunewald wrote:
> On Fri, Feb 18, 2005 at 03:43:29PM -0600, Franco Milicchio wrote:
> > Hi.
> > 
> > I'm planning to install condor on an AFS cell. What I'm planning to do, 
> > is this:
> > 
> > - /afs/cell.name/proj/condor -> /afs/cell.name/proj/condor.@sys
> > - install condor (linux 2.4) in /afs/cell.name/proj/condor.i386_linux24
> > - install condor (linux 2.6) in /afs/cell.name/proj/condor.i386_linux26
> 
> Nice, but what's the point of having it kernel-dependent?


Some things do matter, but a machine in AFS can only have one sysname,
so you have to have a directory for any value @sys might take

(@sys, for those who don't use AFS, is a magical string that AFS will
substitute a machine-specific setting whenever you try and access it - 
it's like a smart symlink. You can do things like have

/afs/.../condor/i386_linux22/
/afs.../condor/solaris28/
/afs/.../condor/@sys/

and if you cd into into /afs/.../condor/@sys, you'll wind up in 
either linux or solaris, depending on what machine you do the 'cd' from. 
It lets you hard-code paths into things and have it just work, it's great.

-Erik