Rucio Meeting

Thursday 6 Apr 2023, 15:00 → 16:00 Europe/Zurich

Martin Barisits (CERN)

15:00 → 15:05 News

• 1.31 is out!
  • Code freeze is over
  • Thanks everyone!
• April release schedule
  • 1.26.17 LTS April 11 (Tue)
  • 1.31.1 April 17
  • 1.29.12 LTS April 17
  • 1.31.2 May 2
• Python 3.6 deprecation discussion on May 4
  • Also requiring 3.9 as default
  • Opinions?

15:05 → 15:25 Community News & DevOps roundtable

• ATLAS
  • Issue with MultiHops
    • strict-copy an issue for some RSEs (but true for entire job)
    • Disabled MH via FTS now, but doing it via Rucio
      • Hotfixed on cluster, not upstream yet
    • Issue with overloading a singe intermediate MH RSE
      • Writing too much data filling the RSE
      • Include freespace in the computation?
      • https://github.com/rucio/rucio/pull/6165
  • Enable web-dav based archive & recall on CTA on Monday 17th
• CMS
  • Upgrading various instances
    • Issues with helm-charts and webui
• Fermilab / ICARUS / etc
  • ICARUS
    • Setup non-deterministic RSE at fnal
      • Automatically move data and free up space once it made it to SLAC
  • DUNE
    • Consequence about py3.9
  • RUBIN
    • Test throughput of transfers
      • Current fts3 deployment @ SLAC not very robust
      • Switched to production FTS @ RAL
      • Issue with transfers at Lancaster, not correctly accepting bulk submissions?
• Belle II

15:25 → 15:45 Rucio 1.31 release retrospective

1.31 Release retrospective.pdf

15:45 → 15:55 Developers roundtable

• Token document
  • Another discussion round with FTS developers yesterday
    • Divergence from original plan, but will result in better architecture
    • Need to add these items to the document and will then release
• Documentation corner
  • Document environmental variables affecting the client #171 [Dimitrios]
  • Documentation and dev guidelines for MyPi type annotations #116 [Mayank, Martin]
  • Create developers testing guide in the documentation #177 [Mayank]
  • Create a server/daemon installation howto #178 [Mayank]
  • Improve documentation on rucio.cfg vs configuration table #183 [Radu]
  • Add an FAQ-style entry aimed at users for STUCK rules #184 [Fabio]
  • Add instruction about DB partitioning #185 [Martin]
  • bridge the gap between running rucio in demo env and full production deployment #187 [Radu]
  • Introduce documentation on subscriptions #190 [Cedric]

15:55 → 16:00 AOB