Re: [HTCondor-users] peaceful node drain and shutdown

[Bob Ball <ball@xxxxxxxxx>]

Maybe this info is now obsolete, but I remember once setting the START 
to an expression that evaluated "FALSE" and caused all the running jobs 
to terminate....

bob

On 7/13/2016 3:56 PM, Fox, Kevin M wrote:
> I'm guessing the condor_drain command will have similar issues to the condor_off -peaceful command? That you have to have all the permissions setup right?
>
> The nice thing about the START=FALSE config trick is you only need root on the machine to do it.
>
> Thanks,
> Kevin
> ________________________________________
> From: HTCondor-users [htcondor-users-bounces@xxxxxxxxxxx] on behalf of Todd Tannenbaum [tannenba@xxxxxxxxxxx]
> Sent: Wednesday, July 13, 2016 12:46 PM
> To: HTCondor-Users Mail List
> Subject: Re: [HTCondor-users] peaceful node drain and shutdown
>
> On 7/13/2016 2:29 PM, Fox, Kevin M wrote:
> > Ah. I had seen the docs for START but didn't realize it would affect new
> > job startup too. It seemed to imply that its for eviction.
> >
> > But, the following seems to work to drain the node gracefully, as you
> > suggested:
> > echo START=FALSE > /etc/condor/config.d/00shutdown
> > kill -HUP <PID OF MASTER>
> >
> > and to reverse it
> > rm -f /etc/condor/config.d/00shutdown
> > kill -HUP <PID OF MASTER>
> >
> > Thanks for the help. :)
> Hi Kevin,
>
> If the above satisfies your needs, great.  But just wanted to point out
> you can do the same thing (drain a node gracefully) with the
> condor_drain tool.  Do "man condor_drain", or see
>    http://htcondor.org/manual/v8.4/condor_drain.html
>
> Also in the upcoming HTCondor v8.5.6, the condor_drain functionality is
> exposed via HTCondor's Python API. :)
>
> regards,
> Todd
>
>
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