[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Condor-users] condor_rooster - how does it work



Ian,

Yes, good point. You can generate offline ads using condor_advertise. Then you could use rooster to manage the wakeup calls and still use some other mechanism for hibernation.

In the ads you give to condor_advertise, just set Offline=True. Use UPDATE_STARTD_AD or INVALIDATE_STARTD_AD in the command argument to condor_advertise.

Let me know if you run into any difficulty. Once you are happy with how it works, this seems like a worthy candidate for the Condor admin how-to recipies (hint hint!).

--Dan

Smith, Ian wrote:
Dan,

Only just had a chance to look at this again. That makes sense but I am
bit wary of using the Condor power saving at present as we already have
a thrid party scheme which has been working pretty well. What I has thinking
is - could we populate OFFLINE LOG using say a cron job periodically. We
can obtain ClassAds for all machines in the pool and basically just delete
those for machines which are powered up to leave the hibernating ones -
would this be likely to work.

thanks,

-ian.

-----Original Message-----
From: condor-users-bounces@xxxxxxxxxxx [mailto:condor-users-
bounces@xxxxxxxxxxx] On Behalf Of Dan Bradley
Sent: 30 November 2009 16:59
To: Condor-Users Mail List
Subject: Re: [Condor-users] condor_rooster - how does it work

Ian,

condor_rooster depends on there being offline ads for the hibernating
machines.  The offline ads are created when HIBERNATE becomes true,
assuming your collector has been configured to support offline ads
(configure OFFLINE_LOG).

Does that help?

--Dan

Smith, Ian wrote:
Hello All,

As someone who has spent a lot of effort in tying to get our Condor pool to
work with power saving Windows execute hosts I was very interested in
using condor_rooster to wake up machines automatically according to
demand but I cannot for the life of me understand how it works.

Currently the power saving is performed by 3rd party s/w and we do
not use the hibernating features built into Condor. As far as I can
tell when the power saving kicks in, the Condor daemons get killed
and the machine disappears from the pool. I can't work out how
condor_rooster can work out if these machines are available for
wakeup when they are no longer publishing ClassAds.  I don't
see any persistent ClassAds for them - do I need to use the
HIBERNATE in the execute host config ?

Is there any more documenation available on this - the v. 7.4 manual is a bit
short on info on this.

thanks - in - advance,

-ian.

--------------------------------------------
Dr Ian C. Smith,
e-Science Team,
The University of Liverpool,
Computing Services Department
_______________________________________________
Condor-users mailing list
To unsubscribe, send a message to condor-users-request@xxxxxxxxxxx with a
subject: Unsubscribe
You can also unsubscribe by visiting
https://lists.cs.wisc.edu/mailman/listinfo/condor-users

The archives can be found at:
https://lists.cs.wisc.edu/archive/condor-users/

_______________________________________________
Condor-users mailing list
To unsubscribe, send a message to condor-users-request@xxxxxxxxxxx with a
subject: Unsubscribe
You can also unsubscribe by visiting
https://lists.cs.wisc.edu/mailman/listinfo/condor-users

The archives can be found at:
https://lists.cs.wisc.edu/archive/condor-users/
_______________________________________________
Condor-users mailing list
To unsubscribe, send a message to condor-users-request@xxxxxxxxxxx with a
subject: Unsubscribe
You can also unsubscribe by visiting
https://lists.cs.wisc.edu/mailman/listinfo/condor-users

The archives can be found at: https://lists.cs.wisc.edu/archive/condor-users/