Week of 210913
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:
- remote: Kate (DB, chair), Maarten (WLCG, ALICE), Xavier (KIT), Chien-De (ASGC), Francesco (CNAF), Dave M (FNAL), Pinja (security), Douglas (BNL), Andrew (TRIUMF), Mark S (LHCb), Christoph (CMS), David B. (IN2P3), Mihal (FTS), Ivan (ATLAS), Pepe (PIC)
Experiments round table:
- CMS reports (raw view) -
- High CPU usage continues
- High staging activity at CERN continues
- CMS data management, Rucio experts, FTS developers and Tape experts are looking into ways to make it more efficient
- Several GGUS tickets were opened to sites regarding storage permissions
- Quite some discussion started based on feedback by site admins
- LHCb reports (raw view) -
- Activity:
- MC and WG productions; user jobs
- Issues:
Sites / Services round table:
- ASGC:NTR
- BNL: NTR
- CNAF: NTR
- EGI: nc
- FNAL: NTR
- IN2P3: Site will be in downtime next Tuesday on September 21st
- CE will be in maintenance the whole day to upgrade HTCondor version
- SE during the morning for MSS hardware maintenance.
- JINR: nc
- KISTI: nc
- KIT: NTR
- NDGF: nc
- NL-T1: NTR; unable to dial in, apologies
- NRC-KI: nc
- OSG: nc
- PIC: NTR
- RAL: NTR
- TRIUMF: NTR
- CERN computing services:
- CERN storage services: NTR
- CERN databases: ADCR database will have a 30min downtime next Monday to prepare for the Oracle upgrade the following week (OTG:0064794)
- GGUS: NTR
- Monitoring:
- Middleware: NTR
- Networks: NTR
- Security: NTR
AOB: