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Lancs:
Glasgow:
Apologies:
CC:
\uD83E\uDD45 Goals
List of Epics
New tickets
Consider new functionality / items
Detailed discussion of important topics
Site report activity
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Item | Presenter | Notes | |||||||||||||||||
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Operational Issues over the Holiday period | (JW - All quiet ?) brief VOMS authentication failure on svc02 - caused a spike in failures | ||||||||||||||||||
Gateways and WNs: | stable status currently
To resist installing 5.6.4; before the break, one sets of sets (TPC transfers) was failing against another site. To repeat the tests and see | ||||||||||||||||||
bugfix for calculating striper objects in direct reads | https://github.com/stfc/xrootd-ceph/pull/50 Any further comments on the PR; or ready to merge ?
Katy Ellis to confirm a successful file dump read.
JW to approve the merge | ||||||||||||||||||
ECHO File transfer / throughput studies | Tests of per-file transfer writes into Echo. Report of initial set of tests presented of writes from a few sites to RAL, using different file sizes, and network links.
A number of proposed tests were suggested, including continuing with Davs; different sites; concurrent file transfer tests; and including low-level (e.g. iperf tests) to identify any bottlenecks and attempt to decouple and isolate as best as possible all the processes / layers involved. | ||||||||||||||||||
Checksums fixes | Status and plans for improving Checksumming work … https://github.com/alex-rg/xrd_ckslib/tree/main
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Prefetch studies and WN changes | Status and plans for Prefect study testing … | ||||||||||||||||||
Deletion studies through RDR | |||||||||||||||||||
Tokens testing |
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Understanding CMSD Loadbalancing | |||||||||||||||||||
SKA Gateway box | |||||||||||||||||||
Architectural review ‘hackathon’ | All | Plan the process for the Architectural planning of XRootD across the External Gateways and WNs | |||||||||||||||||
2024 Planning | JW to prepare a summary of the plans for 2024 |
on GGUS:
Site reports
Lancaster -
Glasgow -
✅ Action items
James Walder to schedule a ‘hackathon’ within a F2F to have a session on architectural planning.
Katy Ellis to run (and help coordinate) additional tests on File transfer performance, to understand the differences between SVC/new network and GW / legacy network hosts that suggest different levels of performance.
These tests to involve iperf testing, and concurrent FTS-issued file transfer testing.
James Walder to prepare an outline of the expected roadmap for XRootD developments in 2024.
⤴ Decisions
- Alexander Rogovskiy to work on and help coordinate the development of a checksum library to perform metadata requests, calling the external checksum script, if a checksum is needed. This is agreed to be a stepping stone to a full implementation whereby the checksum itself may be caclulated by the checksum library.