2024-9-5 Meeting Notes

Operational Issues
Gateways and WNs:
- Current status and upcoming changes

(Gateway Auth failures)

@Thomas, Jyothish (STFC,RAL,SC)

Relatively quite (CMS running >30k core), some network saturation (OPN).

Compilation and rollout status with XrdCeph and rocky 8: 5.7.x

@Thomas, Jyothish (STFC,RAL,SC)

All (external gateways) on 5.7.0 now.

batch still on 5.5.4; to upgrade to 5.7.0 (with proxy cache patch) with Tom Birkett time.

5.7.1 will have FD and memory fixes.

XrootD Workshop plan

@Alastair Dewhurst

@Katy Ellis

https://indico.cern.ch/event/1386888/overview

One month to go!

• Xrootd mgt lunch (weds)

• @Alastair Dewhurst sorting logistics with Cosners, remaining registrations, GridPP / UK → @Alastair Dewhurst to send email re. CVent (missing details).

• @Alastair Dewhurst Taxi arrangements

• Andy on Sunday wants to discuss last minute planning.

• Workshop helpers on the day.

  • FTS (RC / TN) session chairing

• …

Shoveler

@Katy Ellis

Shoveler installation and monitoring

Deletion studies through RDR

@Ian Johnson

Deletions

https://stfc.atlassian.net/browse/XRD-83

Looking at scaling of deletion rates with increasing numbers of clients. Starting with RADOS Striper direct, moving on to ROOT protocol for deletion (via xrdfs) and WebDAV.

Initial results:

Open

Prefetch studies and WN changes

@Alexander Rogovskiy

Read requests fail for proxy+origin setup under heavy load · Issue #2308 · xrootd/xrootd now in 5.7.1 (and patched 5.7.0).

Xrootd testing framework

@Mariam Demir

XRootD Site Testing Framework

Pull requests · stfc/xrootd-testing-framework

SKA Gateway box

@James Walder

https://stfc.atlassian.net/wiki/spaces/UK/pages/215941180

Future developments ideas planning work

@Ian Johnson @Thomas, Jyothish (STFC,RAL,SC)

Notes from planning meeting 22-04-2024

Tokens Status

To split this into Operational aspects and any development / long-term planning aspects.

Checksums fixes

@Alexander Rogovskiy @Thomas, Jyothish (STFC,RAL,SC)