If I am understanding you guys correctly, you are thinking to wait for the whole cluster to stop crunching before updating.
Now, my thought is. Why couldn't you send a command to each node (through an admin level command), that would tell them that at the completion of their current job, update your files from folder x? Then restart/reconfig and hook back up to the queue. Each node would upgrade itself at the next convenient time. That way if you have a couple nodes running some big long runs, you don't waste the clock cycles on the other machines.
From: Matt Hope [mailto:matthew.hope@xxxxxxxxx]
Sent: June 24, 2005 12:55 PM
To: Condor-Users Mail List
Subject: Re: [Condor-users] Using condor to update condor
On 6/24/05, Matt Hope <matthew.hope@xxxxxxxxx> wrote:
> On 6/24/05, Ian Chesal <ICHESAL@xxxxxxxxxx> wrote:
> One means of ensuring that the machine eventually becomes free for
> upgrade is to reconfig the START _expression_. for schedd's I can't
> think of a simple (start no more shadows" but don't kill running ones"
> _expression_ of the top of my head but steadily reducing the max jobs
> running to the number of active shadows would do the trick (if
/me slaps myself
condor_hold -constraint "JobStatus!=2"
It's not a config change though so requires an invocation on the
machine or from another machine with owner trust
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