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Re: [Condor-users] flocking problem
- Date: Thu, 06 Jan 2005 16:49:50 -0600
- From: Derek Wright <wright@xxxxxxxxxxx>
- Subject: Re: [Condor-users] flocking problem
On Thu, 06 Jan 2005 15:58:09 -0600 "David A. Kotz" wrote:
> Mere seconds after I submitted my question, the jobs inexplicably
> decided to flock. Prior to sending, I had watched at least three
> consecutive negotiator cycles say that there were no matches for my
> test jobs.
keep in mind that with the flocking setup you described, you'll have 3
*different* negotiators at work. flocking is entirely handled by your
condor_schedd. if it's told: "you're in pool A, but you can flock to
pools B and C", the schedd will initially just send classads to the
collector for pool A. eventually, the negotiator for pool A will
contact the schedd and attempt to find machines that match the
schedd's jobs. if the schedd finishes talking to negotiator A and
still has idle jobs, it'll start sending classads to both collector A
*and* collector B. eventually, negotiator B will notice this schedd
appeared, and will contact it to see if it can give it any matches.
if, after talking to both negotiator A and negotiator B, the schedd
*still* has idle jobs, it'll start to advertise itself in pool C, and
the process will continue.
so, if you were only looking at the negotiator log for pool A, you'll
*ALWAYS* see it say "can't find any matches for the job that wants to
be in pool C". make sense?
-derek