CTA operations

Wednesday 25 Feb 2026, 10:30 → 11:45 Europe/Zurich

513/R-068 (CERN)

Julien Leduc (CERN)

This meetings covers EOSCTA service operations at CERN: minutes, community

 

Rota

• 20261802-20262502
• 2026-02-20/23 ATLAS retrieve buffer filling up
  • Strange FTS behaviour synched with ATLAS cancellation waves being investigated...
• Memory on ctaproductionfrontendops should improve with cta 5.11.17

Tape infrastructure

• Implement bulk eject for IBM Diamondback tape library
• 3 BROKEN 3592JC7T tapes
• Last CASTOR broken tapes are finally gone along with JC mediatype

Use cases

• Practical CASTOR archeology
• cta-repack-5-reclaim fails if tape does not exist
• tapes reclaimed/deleted outside of ATRESYS?
• Deploy CTA 5.11.17.0-1
• Post MORTEM of qa upgrade gone wrong
  • consistency issues with RPMs
  • ctaops python virtual env is another story and has its own issues...
• cta-maintd ready/live probes added to host monitoring
  • will be monitored per instance/scheduler: current Explore link
  • reconfiguration needed for cycle_sleep_interval_secs currently set at 10000 seconds