Re: [condor-users] Condor-G broker / scheduler questions

[Alain Roy <roy@xxxxxxxxxxx>]

>  I want to submit jobs via Condor-G to a VO registered on MDS2 on a 
> balanced and fault-tolerant way. Is this possible?. The pdf 
> ".../condorg-hpdc10.pdf" does mention of a future broker but this 
> document is three years old and I dont know if it has been implemented or 
> is in the way.

It's not clear what you want.

We try very hard to ensure that jobs submitted via Condor-G deal well with 
faults and recover from problems.

Condor-G doesn't look anything up in MDS, so you have to do that part on 
your own, or use a broker from someone else. The EDG resource broker 
springs to mind, but I don't know much about it.

We have done some early work with matchmaking for Condor-G. It works, but 
it isn't easy to use. It doesn't use MDS, but you could hook it up to MDS. 
It is documented in Section 5.3.5 of the Condor 6.6 manual:

http://www.cs.wisc.edu/condor/manual/v6.6/5_3Condor_G.html#SECTION00635000000000000000

>  I also want to submit service calls to OGSI container of GT3, really is 
> my main mission, but if it can't be done, one option is to make a wrapper 
> from a GRAM job that invokes the service on the same node.

The released version of Condor-G can only submit to Globus Toolkit 2 
resources, or perhaps GT3 resources that provide a backwards compatible 
interface.

Internally, we have been making progress on Condor-G submitting to GT3 with 
the OGSI interfaces. It is not yet ready for release though.

-alain


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