[Swift-devel] replication comment

[Glen Hocky]

Further comment:
trying 2 sites with replication limit=3 for 30 jobs resulted in 90 jobs in
the queue after (when none were starting for some reason)

so there's a pigeonhole problem here somewhere since (i would think) for N
sites you would want no more than N-1 replicas, one for each other site

On Wed, Aug 25, 2010 at 10:52 AM, Michael Wilde <wilde at mcs.anl.gov> wrote:

> Thanks, Glen. I would think that when Swift is running with only a single
> site, replication should essentially be a no-op and disable itself. If thats
> what is already happening, we should state that in the userguide and
> swift.properties file.
>
> We might be able to tell form the full log if its really replicating or
> not.
>
> This is a minor issue since it can  be addressed with documentation (ie
> "dont turn on replication with only 1 site") even if the code is not already
> doing that.
>
> - Mike
>
>
> ----- "Glen Hocky" <hockyg at uchicago.edu> wrote:
>
> > I'm doing a test run on 1 osg site replication is turned on. Since
> > nothing is happening on the site i see
> >
> >
> >
> >
> > Progress: Submitted:6 Finished successfully:2
> >
> > Progress: Submitted:6 Finished successfully:2
> >
> > Progress: Submitted:6 Finished successfully:2
> >
> > Progress: Submitted:5 Replicating:1 Finished successfully:2
> >
> > Progress: Submitted:6 Finished successfully:2
> >
> > Progress: Submitted:6 Finished successfully:2
> >
> >
> > Not sure what happens when a job is replicated on one site but I
> > thought you might like to know...
> >
> >
> > _______________________________________________
> > Swift-devel mailing list
> > Swift-devel at ci.uchicago.edu
> > http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
>
> --
> Michael Wilde
> Computation Institute, University of Chicago
> Mathematics and Computer Science Division
> Argonne National Laboratory
>
>
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