Copy of 2024-06-13 Meeting Notes

\uD83D\uDDD3 Date

06 Jun 2024

\uD83D\uDC65 Participants

Apologies:

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)
Rocky 8 and 9 migration planning
CMSD Load balancing	Thomas Byrne Thomas, Jyothish (STFC,RAL,SC)	PR: https://github.com/stfc/xrootd/pull/8/files
Gateway Auth failures	Thomas, Jyothish (STFC,RAL,SC)	Significantly increased rate that a gateway failures to authenticate (failure mode is permission denied).
CHEP Abstract ideas	Thomas, Jyothish (STFC,RAL,SC)	Accepted abstracts announced
XrootD Workshop plan	Alastair Dewhurst	The workshop agenda and registration page can be found at: https://indico.cern.ch/event/1386888/ We would kindly ask you to consider contributing to the workshop in the following areas: Status, statistics and projected usage of FTS and XRootD for Run3 and beyond. Storage access for analysis use, including performance and CPU efficiency with emphasis on realistic running conditions (e.g., local disk, EOS, Tier2, remote data access, with or without XCache). Data distribution management, needs and use-cases within scientific communities: data management needs of their community, frameworks used and how they integrate FTS and/or XRootD within their workflow. Structured input and future requirements from the experiments and community members on the FTS medium-to-long term evolution. R&D projects in the realm of data management, data access and data distribution within the Grid world are also invited. This could touch on integrating Cloud Storage within scientific data management workflows or Network projects aimed at optimizing data movements. Discussion on connected topics such as Authentication frameworks (IAM, CILogon, etc) and the role of FTS and XRootd for emerging communities (e.g.: SKAO) in the world of scientific data management . We encourage you to submit the title of your talk, along with how much time you would like to have to present it, using the form at https://indico.cern.ch/event/1386888/abstracts/ deadline 1 August . Should the title not be sufficiently explanatory, please include a sentence or two of context. data pipeline for another project in SCD (FTS/xrootd/antares)
Shoveller	Katy Ellis	Shoveler installation and monitoring
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
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)	WNs are currently redirecting checksums to external gws
Prefetch studies and WN changes	Alexander Rogovskiy	ipv6 DNS poisoning is being rolled nullfs testing for xcache hit rate - full scale test on WN TBD
Tokens Status	Thomas, Jyothish (STFC,RAL,SC) Katy Ellis
SKA Gateway box	James Walder	/wiki/spaces/UK/pages/215941180 gws in a working state, aq config port pending

Xrootd testing framework	Mariam Demir

on GGUS:

Site reports

Lancaster: Restarting OSDs eventually fixed the backfilling slowness, data moving around at GB/s rather then MB/s. None the wiser for the root cause, or why these OSDs had problems. Some suspicion at QoS, but need to dig.

Glasgow:

Migration started, OS first.

in place upgrade worked well