CCM Meeting

Wednesday 17 Apr 2024, 08:00 → 09:00 US/Central

Zoom: https://cern.zoom.us/j/66569029743 (usual password)

08:00 → 08:05 News

Speakers: Alexander Tapper (Imperial College London), Pierre Lasorak (Imperial College London)

Wes

• Filling ongoing -- expect to finish week of April 29th -- 3 weeks later to get to nominal purity
• Lot of activity for detectors coming up
• VD cold box testing ongoing, should be complete

08:05 → 08:10 Round table: control

Speakers: Pierre Lasorak (Imperial College London), Zbynek Kral (CTU Prague)

Pierre:

• Introduce Pawel -- started on Monday and will work on Run Control
• Nanorc work
  • None
  • Alessandro requested that we could log in without RCPD
• Drunc work
  • K8s process manager discussions with Tiago
  • OKS/drunc PRs in appdal and coredal
  • Struggling a bit with how the information is organised in OKS for drunc
  • Want to revive non-OKS version of drunc so parallel development on k8s and UI can proceed
• Talked with RSE team at Imperial about potential work on run control in future

Zbynek:

• Catching up

08:10 → 08:15 Round table: config

Speakers: Alan Watson, Giles Barr (Oxford University), Giovanna Lehmann (CERN), Gordon Crone (University College London), Joeal Subash, Juraj Bracinik (University of Birmingham)

Gordon:

• Nothing to add
• OKS meeting (probably) tomorrow

Pierre:

• OKS meeting last week -- tag collection for the engineering release (v5)
• Hoping for release soon but still missing some tags

08:15 → 08:20 Round table: k8s etc.

Speakers: Alessandro Thea (STFC Rutherford Appleton Laboratory), Bonnie King (FNAL), Patrick Riehecky (Fermilab), Pierre Lasorak (Imperial College London), Tiago Alves (Imperial College London), Tiago Alves (Imperial College London)

Pat:

• PRs on micro services closed but not merged? Alessandro didn't want to merge DB this point, so PR without separation merged.

Tiago:

• Microservices:
  • Timezone in the run registry/number wrong -- Geneva time but labelled GMT -- solution to store UTC.
  • Disconnection from the DB every 24 hours -- now renews every hour.
  • Fixes tested -- time to create image and deploy -- want to add create image automatically, nice but not urgent
• K8s testing
  • Monitoring runs using k8s
  • 23.5 hour k8s test -- error message on termination -- everything seems to work fine
  • Suggest starting number of runs to check reliability of startup procedure
• K8s PM:
  • Started some basic tests of starting up pods
  • Discussion on UUID for processes in ssh pm. Could use PID + user host? 
  • Thinking about how to add to k8s pm

08:20 → 08:25 Round table: monitoring

Speaker: Marco Roda (University of Liverpool)

08:25 → 08:30 Round table: others

John:

• Work with Eric to merge in some items into feature branch. Needs volunteer to play with dbe.

Alex & Pierre:

No meeting next week!