Week of 240304

WLCG Operations Call details

• The connection details for remote participation are provided on this 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

• Best practices for scheduled downtimes

Monday

Attendance:

• local: Maarten (ALICE)
• remote: Andrew (TRIUMF), Borja (Chair, Monitoring), Brian (RAL), Christoph (CMS), Concezio (LHCb), Daniele (CNAF), Dave (FNAL), Ivan (BNL), Jens (NDGF), Julia (WLCG), Maria (Computing), Priscilla (ATLAS), Xavier (KIT)

Experiments round table:

• ATLAS reports ( raw view) -
  • Nothing to report

• CMS reports ( raw view) -
  • Nothing major to highlight

• ALICE
  • NTR

• LHCb reports ( raw view) -
  • nothing to report

Sites / Services round table:

• BNL: NTR
• CNAF: NTR
• EGI: NC
• FNAL: NTR
• IN2P3: NC
• JINR: NC
• KISTI: NC
• KIT: We announced a downtime for Wednesday where we'll update HPSS to a newer version (ATLAS GOCDB:35092, CMS + LHCb GOCDB:35093).
• NCBJ: NC
• NDGF: NC
• NL-T1: NTR
• NRC-KI: NC
• OSG: NC
• 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:
  • myproxy.cern.ch upgrade:
    • behind the alias are 2 hosts
    • 1 host is on EL 9 since earlier today: px501.cern.ch
      • ATM there are a few ALICE VOboxes that do not work with that server
      • they are running older myproxy client versions
      • hopefully client updates will fix that
    • 1 host is on CentOS 7: px504.cern.ch or px505.cern.ch (normally one of them at any time)
      • will also be upgraded / replaced when things look sufficiently OK
• CERN storage services: NC
• CERN databases: NC
• GGUS:
  • alarm tests were deemed unnecessary after last week's upgrade
• Monitoring:
  • SiteMon draft reports for February sent around
• Middleware: NTR
• Networks: NC
• Security: NC

AOB: