Re: [Condor-users] Testing for file existance before scheduling a job

[Dan Bradley <dan@xxxxxxxxxxxx>]

Rob Sherwood wrote:

> On Tue, Jan 08, 2008 at 09:42:23AM +0000, Matt Hope wrote:
>  
>
> > On Jan 7, 2008 9:07 PM, Rob Sherwood <capveg@xxxxxxxxxx> wrote:
> > Obviously this is not automated, if you prefer that you can look at
> > things like Hawkeye to automate the setting of the attribute but the
> > basic principle remains the same...
> >    
>
> Thank you Matt (and others) for the fast response.
>
> I guess I should have included more information; the file I'm testing
> for is on an automounted nfs partition.  On some of the machines I'm
> running on, the automounter periodically dies, the file system becomes
> unavailable, and my program is unable to run.  So, I guess in the above
> context, I want the HasTheFlibbleFile flag to be automatically and
> dynamically updated.
>
> Looking at the webpage, it looks like hawkeye should be able to do all
> this. 
>  

A common source of confusion is that Hawkeye is often used synonymously 
with STARTD_CRON.  For what you are trying to do, you want to use 
STARTD_CRON features, not the standalone Hawkeye monitoring system.  
STARTD_CRON allows you to run a script periodically that advertises 
something in the machine ClassAd, such as whether a particular file is 
available.

--Dan