2023-03-16 Meeting Notes
- James Walder
- Thomas, Jyothish (STFC,RAL,SC)
Date
Mar 16, 2023
Participants
@James Walder
@Thomas, Jyothish (STFC,RAL,SC)
@Thomas Byrne
@Ian Johnson
@Alison Packer
@Alastair Dewhurst
Lancs: Gerard, Matt, Steven
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
lcg2269 and lcg2270 with Vector read patch
gw14 used for ‘passive’ CMSD testing
gw3 - allocated for SKA box
dev-gw4; WLCG and CMS tokens testing (5.5.3)
VOMS (aka grid-services) config now rolled out.
dev-gw3 in 5.5.3 testing
Alice gateway congfiguration
Updates for space reporting and the related activities: Noted that some ‘reasonable’ level of activity seen on the gateway.
- Further discussion, but not completely clear why Bytes received and Bytes read might differ by so much. It may just be because of the additional overhead of checksumming.
Item | Presenter | Notes |
|
|---|---|---|---|
Tokens testing | JW | dev-gw4 in WLCG compliance and CMS token testing frameworks: Still to follow up on WLCG test failures; for CMS, currently passing (expected) tests; but suspect the configuration is not quite correct - to follow up at XrootD workshop.  |
|
Status of space reporting and tests on Alice dev gateway and setting up of a unified configuration. |
| https://stfc.atlassian.net/browse/XRD-21 unified tpc working installed an RPM with latest mods to disk space reporting on ceph-dev-gw2 and it is showing the expected stats. I've informed Costin and asked him to confirm it looks OK. |
|
CMSD status |
| https://stfc.atlassian.net/browse/XRD-41 CC document in prep: https://helpdesk.gridpp.rl.ac.uk/Ticket/Display.html?id=481645 https://helpdesk.gridpp.rl.ac.uk/Ticket/Display.html?id=481665
|
|
Vector Read |
| https://stfc.atlassian.net/wiki/spaces/GRIDPP/pages/137265343/Non-striper+read+v+implementation+for+WN+s+xrootd+gateways CC document; aim to be discussed in today’s CC meeting Code review still outstanding; latest commits provided by Alex. |
|
XrootD 5.5.3 testing |
| Basic functional tests passed (read, write, tpc, gfal, xrdcp, davs), currently set for pre-prod testing |
|
GGUS:
Problem accessing some LHCb files at RAL
Site reports
Lancaster
posix.Symlink testing: https://its.cern.ch/jira/browse/ATLDDMOPS-5638
Moved Datadisk RSE to use symlink too:
Action items
Create Jira for Checksumming updates for 3.7+ (especially for Rocky 9 releases).
Arrange the code review for Vector Read work
Decisions