2024-9-5 Meeting Notes
Date
Sep 5, 2024
Participants
@James Walder
@Alastair Dewhurst
@Thomas, Jyothish (STFC,RAL,SC)
@Alexander Rogovskiy
@Mariam Demir
@Ian Johnson
Lancs: Matt, Steven,
Glasgow: Sam
Apologies:
Gerard, Tom, Rob A
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) | @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 | XRootD and FTS Workshop @ STFC UK One month to go!
|
|
Shoveler | @Katy Ellis |
| |
Deletion studies through RDR | @Ian Johnson
|
|
|
Deletions | 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:
|
| |
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 |
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SKA Gateway box | @James Walder | https://stfc.atlassian.net/wiki/spaces/UK/pages/215941180
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Future developments ideas planning work | @Ian Johnson @Thomas, Jyothish (STFC,RAL,SC) |
| |
Tokens Status |
| To split this into Operational aspects and any development / long-term planning aspects. |
|
Checksums fixes | @Alexander Rogovskiy @Thomas, Jyothish (STFC,RAL,SC) |
|
|
on GGUS:
Site reports
Lancaster: Updated to xrootd 5.7.1. Nothing melted. Steven notes our file handle usage since the update yesterday:
Glasgow:
Action items