Rucio Meeting

Thursday 30 Oct 2025, 15:00 → 16:00 Europe/Zurich

Martin Barisits (CERN)

15:00 → 15:05 News

• Rucio Workshop next week!
• November meeting schedule
  • Nov 6 - CANCELLED (Rucio Workshop)
  • Nov 13
  • Nov 20
  • Nov 27
• November release schedule
  • Nov 10 35.8.2 LTS (If no changes, delayed to December)
  • Nov 17 38.6.0
  • Nov 19 39 FEATURE FREEZE
  • Nov 21 39.0.0rc1
  • Nov 28 39.0.0
• Component lead update
  • Jupyterlab: Giovanni replacing Enrique (Francesc remains as lead)
  • WebUI: Eraldo removed (Mayank remains as lead)
  • DIRAC: Max added as new lead (Cedric remains as deputy)
  • Thanks for all the contributions to Enrique and Eraldo!

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

• ATLAS
  • Updated policy package to include tape co-location hints for more data types
  • 38.4.0 deployed
• CMS
  • 38.4.0 deployed too
• Fermilab DUNE / RUBIN
  • DUNE Meeting next week on Upload usage
• DaFab
• CERN IT
• RI-SCALE
  • Test instance deployment after workshop
• MADDEN
  • Pushed PR for multi-ri client on GH
    • Needs some updates for click
• IHEP
• NORDUGRID-ARC

15:25 → 15:55 Developers roundtable

• Reflection about ongoing Sprint 5 (Sprint Board) [Dimitris]
  • Lots of reviews
  • Handling of child issues which are also priorities
• Priority Followup for Rucio 39 "Grand Theft Donkey"
  • Todo
    • Create a new API endpoint for the clients to request tokens #6638 [Dimitrios]
    • Implement new token authentication for download #7029[Dimitrios]
    • More useful client docstrings and CLI help messages (Target: 10/25) #363 [Dimitris]
    • Database: Ensure PostgreSQL ENUM types created during Alembic migrations honor the configured schema #8145[Dimitris]
    • Incorrect RSE shown in FTS Opensearch #7035 [Hugo]
    • Do not use regex to split did, use scope extraction method #7519 [James]
    • Simplify what we run on CI (test suites, OS, Python versions, DB, …) #7965 [Karan]
    • Document common.constant.RSEAttr #551 [Maggie]
    • API: rendering Enums in docstrings #587 [Maggie]
    • Migrate probes to use SQLAlchemy #165 [Maggie]
    • Change mixed prometheus_client and probe_metric approachs to use PrometheusPusher #129 [Maggie]
    • Developer Guidelines for Reviews, Testing Requirements #538[Martin]
    • [ EPIC: Release 39 ] : Mutation Operations and Role Based Access to pages/features #622 [Mayank]
  • In Progress
    • Rework OIDC user authentication #7310 [Dimitrios, James, Anil]
    • Rucio support for full-structure metadata #8011 [Dimitris]
    • Testing: Make tools/run_tests.sh idempotent #7737[Dimitris]
    • Database: Introduce a test-suite to detect whether Alembic migration history is inconsistent #8078 [Dimitris]
    • Make available + Add to Notebook features failing #83[Giovanni]
    • DIDs not being shown correctly in the extension after a successful download #95 [Giovanni]
    • Token refresh after expiration #73 [Giovanni]
    • Test stability on LTS branches #7964 [Karan]
    • Integrate OIDC endpoints for Authorization Code Grant Type #507 [Mayank]
    • [EPIC: Release 39] UX improvements  (Target: 15/28) #621 [Mayank]
    • Fix static code analysis behaviour for functions decorated with @transactional_session, @read_session and @stream_session #6986 [Riccardo]
    • session parameter in *_session decorated functions is required, but effectively treated as optional #6989 [Riccardo]
  • In Review
    • Make 0 the top protocol priority #6312 [Dimitrios]
      • -> Wait until last minor release is done?
    • Prevent multiple Reaper threads from working on the same replicas #6512 [Hugo]
    • Enforce Conventional Commits in CI #7945 [Karan]
    • Adding a matching pattern for DIDs in list-rules command #7121 [Maggie]
    • Rich CLI cannot display RSE information for some RSEs #7693[Maggie]
    • Generate "Configuration parameters" documentation page automatically, to avoid mismatches between documentation and code #325 [Maggie]
    • Dependencies: deprecate setup.py and move to pyproject.toml #6971 [Riccardo]
      • Wait after the workshop
  • Done
    • use literal to store allowed algorithm names for type hints and validation #7858 [James]
    • Confusing log message ‘Policy algorithm module XXX could not be loaded’ #7941 [James]
    • Add tests for default policy algorithm fallbacks #7881 [James]
    • Unused request gateway functions #7625 [Maggie]
    • Validate account type at account creation #6957 [Maggie]
    • Add docs for daemon arguments #499 [Maggie]
    • Unused config gateway functions #7624 [Maggie]
    • No way to check or change ownership of a scope using Rucio client #7830 [Maggie]
  • Delayed
    • Rucio dependencies in test environments should be installed the same way they are installed when Rucio is installed as a package #344 [Riccardo]
• General roundtable
  
  • Python version 3.9 and 3.10
    • alma linux 10 supported at CERN (py 3.9 -> 3.12)
    • However, gfal dependency only 3.9
      • No plan for post EL9 dependency release
      • Request to support EL10 release: investigation for EL10 release ongoing
      • However, this will ring-in the deprecation of gfal in Rucio at all
  • mod_gridsite support (used by servers to deal with x509 proxies)
  • More news from FTS workshop:
    • FTS4 should not require any changes to Rucio code
      • New MultiSource transfers might be interesting
    • Transfers with tokens for tape storage
      • Testing can start, full feature only in FTS4
    • FTS4 full release: August 2026, but testing releases available before

15:55 → 16:00 AOB

See you in the UK next week!