[Pgi-wg] EPR issue and approach using WS-Enumeration

[Morris Riedel]

Hi PGI team,

  is there any experience by the members of using WS-Enumeration for
tackling with the emerging 'EPR pile' in the endpoint?
(WS-Enumeration is like separate google hits pages)

I took a similar approach with Usage Records in OGF RUS a while ago since
this problem is nearly the same as ours -  having scalability problems.


I think this is a problem where each middleware has a limit currently,
looking especially on emerging many task computing jobs (running rather
short - but many (potentially different) of them).

(1)
Submitting 100.000 jobs and two fail. Both have to have a JSDL for resubmit
- but this means you have typically 100.000 instances/EPRs tracked in the
container...

(2)
Submitting 100.000 jobs and two fail using bulk submission or something like
that with only one JSDL - you have difficulties to get the job description
of these two.


Maybe there is already someone having experience with WS-Enumeration in this
context here in the PGI space?

Thanks,
Morris



------------------------------------------------------------
Morris Riedel
SW - Engineer
Distributed Systems and Grid Computing Division
Jülich Supercomputing Centre (JSC)
Forschungszentrum Juelich
Wilhelm-Johnen-Str. 1
D - 52425 Juelich
Germany

Email: m.riedel at fz-juelich.de
Info: http://www.fz-juelich.de/jsc/JSCPeople/riedel
Phone: +49 2461 61 - 3651
Fax: +49 2461 61 - 6656

Skype: MorrisRiedel

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