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\uD83D\uDDD3 Date

\uD83D\uDC65 Participants

Apologies:

James Walder

CC:

\uD83E\uDD45 Goals

  • List of Epics

  • New tickets

  • Consider new functionality / items

  • Detailed discussion of important topics

  • Site report activity

\uD83D\uDDE3 Discussion topics

Current status of Echo Gateways / WNs testing

Recent sandbox’s for review / deployments:

Item

Presenter

Notes

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

Thomas, Jyothish (STFC,RAL,SC)

xroo

https://ggus.eu/index.php?mode=ticket_info&ticket_id=166729

CHEP Abstract ideas

Thomas, Jyothish (STFC,RAL,SC)

Deadline extended to 17th;

XrootD Workshop plan

Alastair Dewhurst

Rocky 8 and 9 migration planning

Shoveller

Katy Ellis

Future developments ideas planning work

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

https://stfc.atlassian.net/wiki/spaces/X/pages/459997229/Notes+from+planning+meeting+22-04-2024?atlOrigin=eyJpIjoiNDRmNDEwOWI3Y2NhNDg5MDg4ZmZiYTNhNTliOWUwNmUiLCJwIjoiYyJ9

Deletion studies through RDR

Ian Johnson

.Preliminary deletion rate plot from DC24 “dip-stick” sampling (ATLAS VO):

deletion-rate.png

Deletions

XRD-83 - Getting issue details... STATUS

Planning for ALICE CMSD redirection

Thomas, Jyothish (STFC,RAL,SC)

Checksums fixes

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

Prefetch studies and WN changes

Alexander Rogovskiy

Some more data from the overload event, namely efficiency and error rates of the on 2021 gen (prefetch on):

pf_on_err.pngpf_on_eff.png

It would be interesting to compare this to the “prefetch off” configuration. So far meaningful comparison is not possible, since the number of WGProduction jobs is nowhere near the numbers during the overload event (23.04.2024):

16a845b82a8be898149f9fc630573654.png

Tokens Status

Thomas, Jyothish (STFC,RAL,SC) Katy Ellis

CMSD Load balancing

Thomas Byrne Thomas, Jyothish (STFC,RAL,SC)

PR:
https://github.com/stfc/xrootd/pull/8/files

SKA Gateway box

James Walder

/wiki/spaces/UK/pages/215941180

2 new servers racked up; awaiting netbox configuration.
To discuss with James A, AQ configuration

Xrootd testing framework

Mariam Demir

on GGUS:

Site reports

Lancaster - a week of living on Reef hasn’t yielded many operational issues, the only one of note was that Reef wasn’t happy with the “trimming settings” for the MDS, the Pacific defaults needed to be cranked up - otherwise smooth sailing. Dealing with fallout from a lot metrics being renamed and changes to the logging which has reduced our monitoring capabilities a bit, but that’s a niggle. Next task is update all the clients.

Glasgow:

Do we want to talk about Durham?

✅ Action items

⤴ Decisions

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