[Swift-devel] remote queue capacity

Mihael Hategan hategan at mcs.anl.gov
Mon Apr 30 16:17:42 CDT 2007


On Mon, 2007-04-30 at 20:45 +0000, Ben Clifford wrote:
> 
> 
> On Mon, 30 Apr 2007, Veronika  V. Nefedova wrote:
> 
> > When I was testing today with large job submissions to TG I hit one very
> > interesting limit -- the *total* number of jobs in the queue. Not just my own
> > jobs in the queue - but the total queue capacity. So TG support asked if we
> > could watch out for this message below and not submit any jobs at the moment:
> > 
> > qsub: Maximum number of jobs already in queue
> > 
> > For example, I could have 4 jobs in the queue and be trying to submit the 5th
> > job, when I
> > get that message.  If the total aggregate jobs by ALL users exceeds 2048 (the
> > number specific to TG-NCSA), I'll
> > get that message.
> > 
> > Can Swift be aware of such limitations - i.e. can we have some safeguards
> > against this situation?
> 
> is that going through GRAM or pbs directly?

GRAM seems to report the following: "It is unknown if the job was
submitted". This is GRAM error code 126 and that's pretty much all the
client gets.

> 




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