Name: Rucio Meeting
Start: 2024-10-17T15:00:00+02:00
End: 2024-10-17T16:00:00+02:00
Location: No location set

15:00 → 15:05

News 5m

7th Rucio Community Workshop
- Thanks to everyone who participated!
- Recordings are available
- Please consider responding to the short anonymous survey about the programme
October release plan
- Oct-14 35.4.1
- Oct-28 35.?
36 “Donkey Unchained”
- End of November

15:05 → 15:25

Community News & DevOps roundtable 20m

ATLAS
- Tape metadata
  - To be tested before the heavy-ion run, to run during
- Poor deletion perfomance
  - Could be related #6512
  - We halve chunk size to 500 prelicas
- (old) Web UI issues (running on Kubernetes)
  - Lots of dropped requests
    - Can be seen by connected into the pod
    - AH03490: scoreboard is full, not at MaxRequestWorkers.Increase ServerLimit.
  - Due to the Apache server configuration limitation
  - Solved by doubling the amount of UI pods
  - CMS commented that have received similar complaints
CMS
- BB8 daemon
  - Works on dataset locks, but doesn’t properly take into account rules on containers, thus creating multiple replication rules
  - Followed up in issue #7109, PR available #7124
DUNE
- State of PR #6563?
  - Blocked by #6667
- Meeting between DUNE, Rucio, and FTS to discuss tokens with CILogon
  - FTS test script is triggering a bug in CILogon
  - Client credentials flow missing, but being worked on
    - In next release™
Fermilab
- Upgraded all instances to release 35.4.0
- Enabled the new Web UI
  - Issue with resource constraint
ESCAPE
ALTO
CERN IT
- Will look into the Reaper issue
- Backporting multi-hop PR
Multi-VO

15:25 → 15:55

Developers roundtable 30m

36 "Donkey Unchained" roadmap
- Todo
  - factorize duplicate messaging code into a common module or class #6423 [Alex]
  - Allow for token providers other than IAM #6630 [Dimitrios]
  - Create a new API endpoint for the clients to request tokens #6638 [Dimitrios]
  - Implement new token authentication for download #7029 [Dimitrios]
  - Prevent multiple Reaper threads from working on the same replicas #6512[Hugo]
  - Improve docstrings #6628 [Riccardo]
  - Evaluate archive workflows for rules (Using an archive as a source) #6643[Riccardo]
- In Progress
  - Make new token support Multi-VO compatible #6406 [Dimitrios]
  - Review operations where SSL verification is disabled #6632 [Dimitrios]
    - Draft PR for split into two parts
  - Retire RSE limits #6629 [Erling, Dimitrios]
  - Prepare replacement of current policy import with policy packages #4798 [James, Martin]
    - Belle II policy -> check with Cedric [on Martin]
    - ATLAS policy -> is there, but needs to be deployed
      - Need to identify a best-practice to deploy a policy package
  - WebUI Tracker 36 [Mayank, Viktoria]
    - 35.2 release published
    - Streaming issues fixed
    - 35.3 this week or early next week, including dashboard view and full create rule workflow
    - X509 auth still open
  - Refactor all ATLAS-related code into ATLAS policy package #7027 [Riccardo]
  - Better define unit tests and integ tests #7007 [Riccardo]
  - Improve test coverage #7008 [Riccardo]
- In Review
  - Allow permissions to optionally return a message #6580 [James]
    - PR #7001 approved
  - Re-write and standardization of client command structure #6639 [Maggie]
    - Please review! (Need comments from Dimitrios, Mario, Riccardo)
- Done
- Delayed
  - Make WebDAV protocols on par with GFAL #6633 [Dimitrios]
Documentation corner
- Document activities used by rucio-daemons #326 [???]
- Generate "Configuration parameters" documentation page automatically, to avoid mismatches between documentation and code #325 [???]
- Error when trying to upload file with custom name containing slashes #336 [???]
- Make a table for all daemon and its functionality #296 [Hugo]
- Documentation (developer): Add guidelines for testing API-related changes #322 [???]
- Documentation for RSE settings #293 [???]
- Document how deletion occurs. #288 [Anil]
  - PR #295 underway
- Introduce documentation on subscriptions #190 [Cedric]
- ~~bridge the gap between running rucio in demo env and full production deployment~~ #187 [Hugo, Giovanni]
  - PR #349 merged.
- Add instruction about DB partitioning #185 [Martin]
- Add an FAQ-style entry aimed at users for STUCK rules #184 [Fabio]
- ~~Document environmental variables affecting the client~~ #171 [Dimitrios]
  - PR #366 merged.
- Changing auth_type should invalidate current Rucio authn token #321 [???]
Other topics

15:55 → 16:00

AOB 5m

Will have a presentation about the new Web UI next week by Victoria.