Week of 231127

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: Julia (WLCG), Maarten (ALICE + WLCG)
• remote: Andrew (TRIUMF), Borja (Monitoring), Christoph (CMS), David B (IN2P3-CC), David M (FNAL), Doug (BNL), Henryk (LHCb + NCBJ), Ignacio(Computing services), John (ATLAS), Onno (NLT1), Panos(WLCG), Xavier (KIT)

Experiments round table:

• ATLAS reports ( raw view) -
  • NTR

• CMS reports ( raw view) -
  • On Thursday (30.11.) a common (ATLAS+CMS) pre-challenge is planned exporting data from CERN to the T1s. Sites contacts should be informed already.

• ALICE
  • Stratum-1 service at RAL dysfunctional (GOCDB:34780)
    • It only affects RAL itself

• LHCb reports ( raw view) -
  • NTR

Sites / Services round table:

• ASGC:
• BNL: 19-Dec Site Network downtime - 06:00-21:00 EST (19-Dec 11:00 UTC to 20-Dec 02:00 UTC). Announced in OSG Topology Link to OSG Topology
• CNAF: NTR
• EGI:
• FNAL:
• IN2P3: NTR
• JINR: NTR
• KISTI:
• KIT:
  • Site downtime announced in GOCDB #34716 for Dec 6th/7th
• NDGF:
  • NTR
• NL-T1: NTR
• NRC-KI:
• OSG:
• PIC:
• RAL:
  • see ALICE report above
• TRIUMF: NTR

• CERN computing services:
  • VOMS downtime due to DB upgrade.
• CERN storage services:
• CERN databases:
• GGUS:
  • A new release is planned for Wed this week
    • Release notes
    • A downtime has been scheduled from 07:00 to 09:00 UTC
    • Test alarms should be submitted as usual
• Monitoring: NTR
• Middleware:
  • The HTCondor CE campaign on EGI is continuing OK with condor v9.0.20
    • Several sites already declared their ticket solved
• Networks:
• Security:

AOB: