2024-06-27 Meeting Notes
- James Walder
- Alexander Rogovskiy
- Matt Doidge
Date
Jun 20, 2024
Participants
@Thomas, Jyothish (STFC,RAL,SC)
Lancs:
Glasgow:
Apologies:
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 |
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|---|---|---|---|
Operational Issues | @Thomas, Jyothish (STFC,RAL,SC) | it all works now! Rocky8temp by Jo-stfc · Pull Request #14 · stfc/xrootd memory allocation fixed for weighted round robin, pagedIO temporarily disabled [XrdXrootDXeqPgrw] Out of bound array assignment in paged reads · Issue #2287 · xrootd/xrootd
|
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Rocky 8 and 9 migration planning |
| complete |
|
CMSD Load balancing | @Thomas Byrne @Thomas, Jyothish (STFC,RAL,SC) |
| |
Gateway Auth failures | @Thomas, Jyothish (STFC,RAL,SC) | still ongoing with lower frequency, but mitigation check with autorestart enabled |
|
CHEP Abstract ideas | @Thomas, Jyothish (STFC,RAL,SC) |
|
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XrootD Workshop plan | @Alastair Dewhurst |
|
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Shoveller | @Katy Ellis |
|
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Future developments ideas planning work | @Ian Johnson @Thomas, Jyothish (STFC,RAL,SC) |
| |
Deletion studies through RDR | @Ian Johnson
|
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Deletions |
|
| |
Planning for ALICE CMSD redirection | @Thomas, Jyothish (STFC,RAL,SC) | no updates |
|
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 rolled out nullfs testing for xcache hit rate - full scale test on WN TBD |
|
Tokens Status | @Thomas, Jyothish (STFC,RAL,SC) @Katy Ellis |
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SKA Gateway box | @James Walder | https://stfc.atlassian.net/wiki/spaces/UK/pages/215941180 gws in a working state, aq config port pending |
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Xrootd testing framework | @Mariam Demir |
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on GGUS:
Site reports
Lancaster: We discovered (unsurprisingly) a redirector becomes really sad when all the gateways behind it fall over, which we found out the hard way over the weekend. During the chaos the redirector rebuilt so we’re rocky8 all round now, and thanks to a few “days off” our ceph is generally a lot happier.
Glasgow:
Action items