1. Status of the production and news about Nagios ALICE TF Meeting 22/07/2010

2. Summary of the last week production Large amount of running jobs (expected) – Pass 1 reconstruction (LHC10d)activities ongoing – Analysis trains and user analysis tasks ongoing – 2 MC cycles LHC10d14: pp events, Pythia6, 900GeV LHC10d15: pp events, Phojet, 900GeV 7.4 M of requested events per cycle Currently 90% completed – New MC cycles expected during the weekend

3. Job profile per sites Currently decreasing the activity moreover at the T0: Not an issue, well understood Decrease of running jobs at key T1 sites: FZK and CNAF

4. Job profiles per users MC and reconstruction activities User analysis activities

5. Raw data information 52TB of raw data transferred to T0 T0-T1 raw data transfers: up to 270MB/s achieved

6. Site news (T0 site) CERN – Cooling problem at the IT this week affecting the experiment voboxes declared with an importance below 50 In the case of ALICE: Npone of the production VOBOXES nor the xrootd redirectors were affected (importance = 90) CAF nodes affected (nodes were switched off). CAF users prevented. The importance of all CAF nodes (nodes and PROOF master) have been already increased to 50 – CREAM-CE: Better performance and stability of the systems this week – Transparent upgrade of CASTOr2 (including xrootd) on the 21 st of July

7. Site news (T1 sites) CNAF – Job profile: problems with the information reported by the resource BDII twice this week Up to 11K Alice agents waiting in the queues – SE disk space for ALICE increased. 546T available (32% used by the 21 st July) – Today the SE was reporting some problems in ML: SOLVED by Francesco All server services have been restarted SARA – SE in scheduled downtime this week. Upgrade of dCache – System back in production and good performance in ML LYON – SE still under tuning – the configuration is set up and writing on the storage disks works however there's a problem with the migration of the disk data towards HPSS (rfio issue)

8. Sites news (T2 sites) Torino – Migrating CREAM system to the latest version Madrid – Same operation as in Torino Cyfronet – Lack of available resources. Waiting for the site admin to increase them

9. Site summary Hardly going over the 20K concurrent jobs – Cooling problems at FZK last week – Info system issues with CNAF – High load of other experiment at Lyon Several sites have seen this week a high number of jobs running over 46h – Pathological jobs. Although finishing correctly, their outputs cannot be used – Prevention measure: Set the CPU time of the ALICE queues to a 24h limit

10. Nagios news Currently publishing in the VALIDATION infrastructure 2 sensors: VOBOXES and CE Some of the discrepancies found between the SAM and Nagios results: SOLVED SITES SHOULD KNOW: – The voboxes MUST be published in the GOCDB and the BDII – Voboxes MUST be pingable from samnag014.cern.ch Standard Nagios test Requested by Alice about one month ago through this meeting – We all together will need to define when we should put this infrastructure in production This needs to be announced at the next MB meeting on the 27th This implies the deprecation of SAM