Week of 210510
WLCG Operations Call details
- For remote participation we use Zoom: https://cern.zoom.us/j/99591482961
- The pass code is provided on the
wlcg-operations
list.
- You can contact the
wlcg-ops-coord-chairpeople
list (at cern.ch
) if you do not manage to subscribe.
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 wlcg-scod@cernSPAMNOTNOSPAMPLEASE.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
Monday
Attendance:
- local:
- remote: Miro (Chair, DB), Douglas (BNL), David (IN2P3), Maarten (ALICE, GGUS), Michal (ATLAS), Dave (FNAL), Julia (WLCG), Darren (RAL), Onno (NL-T1), Andrew (TRIUMF), Daniel (Security), Xavier (KIT), Concezio (LHCb), Alberto (Monitoring), Christoph (CMS), Jens (NDGF), Jose (PIC)
Experiments round table:
- ATLAS reports ( raw view) -
-
- 3 files lost from pic tape (GGUS:151866)
- The files have been declared lost. The origin of the problem has been identified.
- "Changing file state because request state has changed" staging errors at RRC-KI-T1_MCTAPE (GGUS:151881)
- ATLAS test data left behind on CASTOR deleted
- CMS reports ( raw view) -
- Notified a couple of sites (mainly T1s) via GGUS that production transfers are being switched to WebDAV
- Otherwise nothing major to report
Sites / Services round table:
- ASGC: NC
- BNL: 3 hour downtime Wednesday 12-May-21 14:00-17:00 update storage system software (dCache,Java, Postgres).
- CNAF: NTR
- EGI: NC
- FNAL: NTR
- IN2P3: NTR
- JINR: NC
- KISTI: NC
- KIT: NTR
- NDGF: NTR
- NL-T1: NTR
- NRC-KI: NC
- OSG: NC
- PIC: Thursday 13th of May during the morning there will be an intervention in the Tape System, for 2h approx. Reads won't be available, but writes will be buffered and they will resume when the intervention is finished. Additionally, on Thursday 20th of May, PIC will be in a complete scheduled downtime due to a network intervention and changes in our dCache configuration (from 20-05-2021 08:00 [PIC local time] until 20-05-2021 16:00 [PIC local time]). HTCondor will be stopped at the beginning of the SD.
- RAL: NTR
- TRIUMF: NTR
- CERN computing services: NC
- CERN storage services: NC
- CERN databases: NTR
- GGUS: NTR
- Monitoring: NTR
- Middleware: NTR
- Networks: NTR
- Security: New colleague: Pinja. She'll support the security team.
AOB: