Re: [HTCondor-users] correction: How to change machine availability for job execution?

[Todd Tannenbaum <tannenba@xxxxxxxxxxx>]

On 2/1/2016 9:36 AM, Lee Gramling wrote:
> If I have several machines that can run jobs but want to be able to make
> a machine unavailable perhaps thru a desktop gui and then make it
> available again later, do I just change the condor_config file locally?
>
>
> Thanks
>
> Lee

Hi Lee,

I am not sure I follow your question above, but if I understand you 
correctly, you wish to control if individual machines in your pool are 
willing to run jobs or not from a centralized location.  You could 
accomplish this a number of ways.  Assuming your centralized location is 
a machine that has administrator access to your pool (i.e. a machine 
that is listed in your ALLOW_ADMINISTRATOR, such as your central 
manager), some quick ideas off the top of my head about what you could 
do on that central manager to stop jobs from running on machine xxx.edu

1.  You could run "condor_off xxx.edu" to turn of HTCondor on that node, 
then "condor_on xxx.edu" to turn it back on.

or

2. If the condor_config file(s) for the machines are on a shared file 
system, you could edit the config file for machine xxx.edu so that
  START =  False
and then issue a condor_reconfig -name xxx.edu.

or

3. If the condor_config files are not on a shared file system, you could 
edit the config as above remotely via condor_config_val -rset, assuming 
all the various config knobs to allow remote configuration are set.




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--
Todd Tannenbaum <tannenba@xxxxxxxxxxx> University of Wisconsin-Madison
Center for High Throughput Computing   Department of Computer Sciences
HTCondor Technical Lead                1210 W. Dayton St. Rm #4257
Phone: (608) 263-7132                  Madison, WI 53706-1685