Re: [Condor-users] Copying job attrs into slot attrs

[Dan Bradley <dan@xxxxxxxxxxxx>]

I think Ian meant to write STARTD_JOB_EXPRS rather than STARTD_EXPRS.

--Dan

Ian Chesal wrote:
> > Is there a way for copying a Job attribute over to the slot
> > that it is running?
> >     
>
> You bet. STARTD_EXPRS is what you want. See:
>
> http://www.cs.wisc.edu/condor/manual/v7.2/3_3Configuration.html#16323
>
>   
> > I'm trying to configure a job policy that depends on how many
> > slots are using a local resource.
> >
> > I've looked at STARTD_SLOT_ATTRS but I can't see a way of
> > updating a slot attribute without using START_CRON_ etc.
> > dynamic updates. The problem here is that I then depend on
> > update intervals I might miss an update.
> >
> > By copying a job attribute over the policy can then simply
> > count how many jobs on that machine are using a resource.
> > Any thoughts?
> >     
>
> You'll have to look at the value of this attribute for each slot. Each slot will get a unique instance of this attribute. You can cross-advertise these values in each slot using STARTD_SLOT_EXPRS. This makes a value that's slot specific appear in every other slot, prefixed with the string "slot#_".
>
> So if you had:
>
> STARTD_EXPRS = ClusterID
> STARTD_SLOT_EXPRS = ClusterID
>
> Then on a 2 slot machine, Slot 1 would have:
>
>         ClusterID = 8908
>         slot2_ClusterID = 123
>
> And Slot 2 would have:
>
>         ClusterID = 123
>         slot1_ClusterID = 8908
>
> - Ian
>
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