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Published byVictoria Griffith Modified over 9 years ago
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PDC’06 – production status and issues Latchezar Betev TF meeting – May 04, 2006
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2 PDC’06 – production status Running status Central services – all OK, no intervention necessary With the exception of the ProxyServer – solution is being discussed (Andreas, Pablo, Predrag) Site services – all OK (on running sites) Running standard production jobs, old AliRoot Job duration – 8 hours Job output – CERN storage still firewalled: prevents us from storing data at CERN Stable running since 25/04 – 9 days Currently 15 sites (2 T1s, 13 T2s)
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3 PDC’06 – production status Site profiles Average 520 jobs, max 1180 jobs
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4 PDC’06 – production status Site profiles (2) Job statistics
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5 PDC’06 – production status Site profiles (CERN) Periodical drop in jobs accepted by LCG
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6 PDC’06 – production status Site profiles (T2s) Uneven job acceptance, no method yet to track and enforce ALICE resources share
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7 PDC’06 – production status Repartition of done jobs Approximately 40/60 % repartition T2/T1. Muenster (Opteron) is boosting the T2 share, T1s are underrepresented.
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8 PDC’06 – production status Issues Storage at CERN – still unresolved Monitoring and submitting jobs at sites: Sites typically advertise 0 free CPUs Current system is auto-calculating the number of jobs to submit – penalizing ALICE Have to go back to the AliEn system of deterministic values for number of CPUs and number of submitted job agents, irrespective of advertised resources. Job communication (Proxy) with the central services
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9 PDC’06 – production status Loss of connectivity with CS Simultaneous occurrence in sites, correlated with ERROR_S, ERROR_IB
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10 PDC’06 – production status Issues (2) Deployment of VO-boxes: Process is steadily ongoing, however not as fast as we would like it to be Mix of problems – some LCG, some AliEn services related. Deployment experts are working around the clock Hopefully after the initial setup phase, further updates will be much faster Hope that gLite 3.0 is not going to change the rules completely List of sites – to be discussed after this presentation
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