Re: [Condor-users] Mixed 6.8.6 and 6.9.5 installation

[Dan Bradley <dan@xxxxxxxxxxxx>]

Yes, you should be able to run 6.9.5 on your submit node and/or central 
manager while running 6.8.6 on some/all execute nodes.

If you want to upgrade without killing any running jobs, it is possible, 
at least for vanilla universe configured with a long enough 
JobLeaseDuration to let you get the upgrade done.  However, if that is 
not hugely important, it is simpler to just shut down your submit node 
normally (which will stop all jobs in 6.8.6), do the upgrade, and then 
start it back up.  I'd recommend upgrading the central manager first and 
then doing the submit node once the new central manager daemons are up 
and running.

--Dan

Robert E. Parrott wrote:

> Hi folks,
>
> We have a cluster of 240 processors, managed by condor v6.8.6, and  
> have some users who would like to schedule 1000 jobs at once. At full  
> throttle I can imagine seeing 5000 jobs in under condor_q if we let  
> the users run free.
>
> I understand that schedd and other daemons are single threaded, and  
> with that many jobs can show significantly reduced performance, but  
> that in v6.9.5 this has been refactored, which is a significant  
> attraction to the development series.
>
> My question is how one might make use of the updated condor daemons  
> on the frontend and submit machine, without having to upgrade all the  
> compute nodes. Would this be possible?  What would be needed to do so  
> in a graceful manner?
>
> thanks,
> rob
>
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