On 16/12/11 16:10, Daniela Bauer wrote:
> Well, the EMI SGE version has been only out for about two weeks and
> given that it requires a complete reinstall I wouldn't be surprised if
> take up has been slow.
Indeed. QMUL hasn't installed it yet - though it's the obvious candidate
for the new CE.
> Having said this, I've installed it (the EMI version) and so far I
> haven't seen any problems with it, but then I don't see any problems
> with my lovingly tuned (especially the my.cnf and the tomcat.conf) glite
> 3.2 versions either. But then I have lots of CEs.
> I would recommend reading the EMI admin guide front to back though, it
> applies equally to glite 3.2.
>
> Here's my EMI install log if anybody is interested:
> http://www.hep.ph.ic.ac.uk/~dbauer/grid/emi_cream.html
> (if you really want to read my config files, I can give you the pasword).
>
> So personally I couldn't care less whether it goes in UMD or not.
My view is that it should _not_ go into UMD - but there should be some
advertisement that the EMI release is available and works for SGE sites.
I'm sorry, but release announcements shouldn't contain instructions not
to use stuff.
Chris
>
> Cheers,
>
> Daniela
>
>
> On 16 December 2011 16:00, John Gordon <[log in to unmask]
> <mailto:[log in to unmask]>> wrote:
>
> So UK pressure to improve CREAM for SGE has had an unfortunate
> side-effect.
>
> Options could be to push for this version to be included in UMD but
> only ask SGE sites to upgrade. Or for SGE sites to take the release
> from EMI repository to get a working version. I think the latter is
> safer as it would prevent non-SGE sites being accidently broken when
> people don't read the documentation (that could never happen, could
> it?).
>
> Are SGE sites happy with the latest EMI release? Anyone not tried it?
>
> John
>
> -----Original Message-----
> From: [log in to unmask]
> <mailto:[log in to unmask]>
> [mailto:[log in to unmask]
> <mailto:[log in to unmask]>] On Behalf Of Tiziana
> Ferrari
> Sent: 16 December 2011 14:24
> To: NGI Operations Centre managers
> Subject: [Noc-managers] CREAM and UMD 1.4.0: your feedback needed
>
> Dear all
>
> as discussed at the last operations meeting the latest version of CREAM
> was planned for release in UMD 1.4.0 (due next Monday 19th of December),
> as CREAM is particularly needed for SGE sites. Unfortunately a serious
> bug was detected today affecting CREAM (bupdater for PBS and LSF).
>
> The bug is documented at:
> http://wiki.italiangrid.it/twiki/bin/view/CREAM/KnownIssues#Memory_leak_in_bupdater
>
> "Version 1.16.3 of BLAH is affected by a quite critical memory leak in
> the bupdater component for LSF and PBS. Because of that the usage of
> memory of the bupdater process will keep increasing till when it
> crashes/it is killed by OOM. It is then automatically restarted by blah.
> The problem concerns PBS and LSF, but not SGE.
>
> For LSF and PBS, the workaround is to configure the blparser using the
> old method:
> http://wiki.italiangrid.it/twiki/bin/view/CREAM/SystemAdministratorGuideForEMI1#1_2_4_Choose_the_BLAH_BLparser_d
> Relevant bug: https://savannah.cern.ch/bugs/index.php?89859"
>
> The workaround for PBS/LSF consists in the following steps:
> - to set explictly a yaim variable
> - to configure the cream-ce using yaim
> - to configure the blparser using yaim
> - to restart tomcat
>
> We need to decide by today if we want to include CREAM with the
> documented workaround in UMD 1.4.0.
>
> My proposal is to *not* include it, even if for SGE verification and
> staged rollout were ok, and to release it with a fixed EMI.blah in UMD
> 1.5.0 (30 Jan 2012). The motivation of this is to not risk a disruption
> of medium/small sites with PBS, for which an upgraded CREAM will require
> some careful workaround.
>
> Let me know if you have problems with this proposal.
>
> Thank you in advance
> Tiziana
>
>
>
>
>
>
> --
> Tiziana Ferrari
> EGI.eu Operations
> Science Park 140, 1098 XG Amsterdam, NL
> m: 0031 (0)6 3037 2691
> _______________________________________________
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>
>
>
>
> --
> -----------------------------------------------------------
> [log in to unmask] <mailto:[log in to unmask]>
> HEP Group/Physics Dep
> Imperial College
> Tel: +44-(0)20-75947810
> http://www.hep.ph.ic.ac.uk/~dbauer/
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