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WLCGOpsMeetingWeek240318
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---+!! Week of 240318 %TOC% ---++ WLCG Operations Call details * The connection details for remote participation are provided on this [[https://indico.cern.ch/event/1188295/][agenda page]]. ---++ General Information * The purpose of the meeting is: * to report significant operational issues (i.e. issues which can or did degrade experiment or site operations) which are ongoing or were resolved after the previous meeting; * to announce or schedule interventions at Tier-1 sites; * to inform about recent or upcoming changes in the experiment activities or systems having a visible impact on sites; * to provide important news about the middleware; * to communicate any other information considered interesting for WLCG operations. * The meeting should run from 15:00 Geneva time until 15:20, exceptionally to 15:30. * The SCOD rota for the next few weeks is at ScodRota * Whenever a particular topic needs to be discussed at the operations meeting requiring information from sites or experiments, it is highly recommended to announce it by email to the =wlcg-scod= list (at =cern.ch=) to allow the SCOD to make sure that the relevant parties have the time to collect the required information, or invite the right people at the meeting. ---++ Best practices for scheduled downtimes * [[BestPracticesForSchedDT][Best practices for scheduled downtimes]] ---++ Monday Attendance: * local: Maarten (Alice WLCG), * remote: Andrew (TRIUMF), Brian (RAL), Concezio (LHCb), Darren (RAL), David B (IN2P3), Julia (WLCG), Matteo (CNAF), Onno (NL-T1), Panos (WLCG, Chair), Priscilla (ATLAS), Ville (NDGF), Xavier (KIT) Experiments round table: * ATLAS [[AtlasComputing.ADCOperationsWeeklySummaries2024][reports]] ( [[AtlasComputing.ADCOperationsWeeklySummaries2024?raw=on][raw view]]) - * ATLAS T1 post-DC24 exercise continuing * repeating the T0 Export tests (i.e. only traffic from T0 -> T1s). The plan (with some changes respect to the tentative this morning) is to run for 6 hours per Tier-1 to achieve the isolated DC24 target rates for the T1s: Mon, 18th: RAL, Tue, 19th: pic , Wed, 20th: Triumf, Thu, 21st: All T1s together * Further details in GGUS, e.g. GGUS:165525 * meta-rpm dependency issue * apologies for gfal openldap-compat confusion. Can be removed from HEP meta-rpm, at your leisure. * Details: current ALRB gfal2 is compiled with wrong `openldap-compat` dependencies ( [[https://its.cern.ch/jira/browse/DMC-1404][DMC-1404]]), already fixed in EMI testing 24.03.14-snapshot-x86_64-el9 (`export ALRB_emiVersion=testing`) * For information: we will push in the next days the remeaining storages that did not update dCache tokens * For discussion: the GRIF RSE model: - RSE spread through 3 sites. How can we be less sensitive to the DT of one of the sub-sites? WARNING might not be sufficient, better OUTAGE since 1/3 of the files are unavailable? * GGUS:165523 * Maarten will contact GRIF. Since the storage is now unified between the different GRIF sites when one part of it is unavailable a downtime should be created for the whole site. * CMS [[CMS.FacOps_WLCGdailyreports][reports]] ( [[CMS.FacOps_WLCGdailyreports?raw=on][raw view]]) - * ALICE * NTR * LHCb [[LHCb.ProductionOperationsWLCGdailyReports][reports]] ( [[LHCb.ProductionOperationsWLCGdailyReports?raw=on][raw view]]) - * smooth running, no major issues * some impact on operations due to the GRIF partial storage unavailability (GGUS:165535) * setting up data challenge with Beijing (proto-) Tier1 * repeating data challenge with CNAF; writing test last week, reading test this week Sites / Services round table: * BNL: NTR * CNAF: NTR * EGI: * FNAL: * !IN2P3: NTR * JINR: * KISTI: * KIT: NTR * NCBJ: * NDGF: NTR * NL-T1: On the 13th, one of our two tape libraries was down. Part of the tape data was not available. GOCDB:35118 and GOCDB:35121 * NRC-KI: * OSG: * PIC: SD on 26/03 from 3h30 am to 23h. It has been published in GOCDB. We have the yearly maintenance on PIC building. * !RAL: NTR * TRIUMF: NTR * CERN computing services: * CERN storage services: * CERN databases: * GGUS: NTR * Monitoring: * Distributed final SiteMon availability/reliability reports for 2024 02 * Middleware: NTR * Networks: * Security: AOB: * Ville reported that GGUS feels slow today (~20seconds to access a ticket). A ticket will be created to the GGUS team so that they can investigate this report
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Topic revision: r18 - 2024-03-19
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