2024-12-12 Meeting Notes
- James Walder
- Matt Doidge
Date
Dec 12, 2024
Participants
@Alexander Rogovskiy
@Katy Ellis
@James Walder
@Thomas Byrne
Lancs: Gerard, Matt, Steven
Glasgow:
Apologies:
Sam
CC:
Goals
List of Epics
New tickets
Consider new functionality / items
Detailed discussion of important topics
Site report activity
Discussion topics
Current status of Echo Gateways / WNs testing
Recent sandbox’s for review / deployments:
Item | Presenter | Notes |
|
|---|---|---|---|
Operational Issues (Gateway Auth failures) |
| Upgrades of GWs complete Mini-DC challenge not perturbing RAL performance.
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Checksums issue with an ATLAS file |
| https://ggus.eu/index.php?mode=ticket_info&ticket_id=169360 Checksum requested before whole file is updated. No ability to do stale checksum check in ceph, so original checksum ‘sticks’ to the file. |
|
cms-aaa naming convention |
| cms-aaa is the only remaining personality to use proxy/ceph as the xrootd service names Separate naming convention would be more appropriate, to have main/supporting (not so urgent). CC created, but due to be reviewed December |
|
XRootD Managers De-VMWareification | @Thomas, Jyothish (STFC,RAL,SC) |
Option 2 preferred for efficiency, but Option 1 decided on Option 1 would be simpler to implement for a temporary fix, as the move would be reversed antares tpc nodes to be moved to an echo leafsw, to confirm ipv4 real estate with James |
|
Compilation and rollout status with XrdCeph and rocky 8: 5.7.x | @Thomas, Jyothish (STFC,RAL,SC) | 5.7.2 published. |
|
Shoveler | @Katy Ellis | Shoveler installation and monitoring
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Deletion studies through RDR | @Ian Johnson
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Deletions |
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XRootD Writable Workernode Gateway Hackaton
| @Thomas, Jyothish (STFC,RAL,SC) | XRootD Writable Workernode Gateway Hackaton (XWWGH) Tues 12th Nov 1600 Outcomes |
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Xrootd testing framework |
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100 GbE Gateway testing: | @James Walder @Thomas, Jyothish (STFC,RAL,SC) | https://stfc.atlassian.net/wiki/spaces/UK/pages/215941180
 Average per-file transfer speeds (for 10 concurrent transfers, 1 or 5 GiB files)
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UKSRC Storage Architecture |
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Tokens Status |
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Tom - Provided updates from Cephlacon
on GGUS:
Site reports
Lancaster: All our ceph troubles of the last week can be traced to users. Can we get rid of them?
Other then wishing for a user-free utopia, XRootD updated to 5.7.2 with no issues seen. Gerard has been working on tooling to make our ceph adminning easier.
Glasgow
Action items
How to replace the original functionality of fstream monitoring, now opensearch has replaced existing solutions.