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\uD83D\uDDD3 Date

\uD83D\uDC65 Participants

\uD83E\uDD45 Goals

  • List of Epics

  • New tickets

  • Consider new functionality / items

  • Detailed discussion of important topics

  • Site report activity

\uD83D\uDDE3 Discussion topics

Current status of Echo Gateways / WNs testing

  • lcg2269 and lcg2270 with Vector read patch

  • gw7, gw10 (AAA), dev-gw3 in 5.5.3 testing

  • gw14 used for ‘passive’ CMSD testing

  • gw3 - allocated for SKA box (question)

  • gw2 - testing checksum code updates

  • dev-gw4; WLCG and CMS tokens testing (5.5.3)

  • dev-gw1 for multi-stream testing

Recent sandbox’s for review / deployments:

Item

Presenter

Notes

XrootD 5.5.4 testing

Tokens testing

JW

Following XRootD workshop; can now restrict a VO to it’s own path / pool.

  • todo: discuss how to move towards production.

Status of space reporting and tests on Alice dev gateway and setting up of a unified configuration.

XRD-21 - Getting issue details... STATUS

Are we done ?

CMSD status

XRD-41 - Getting issue details... STATUS

CC document in prep:

https://stfc.atlassian.net/wiki/spaces/GRIDPP/pages/136446019/High-level+XrootD+redirection+for+Echo?focusedCommentId=136118425

https://helpdesk.gridpp.rl.ac.uk/Ticket/Display.html?id=481645

https://helpdesk.gridpp.rl.ac.uk/Ticket/Display.html?id=481665

echo-manager{01,02} re-iped to OPN, but wrong IPv6 addresses given to the alias - being corrected.
- final SAN ?

Keep with the original planned rdr echo address ?

Vector Read

https://stfc.atlassian.net/wiki/spaces/GRIDPP/pages/137265343/Non-striper+read+v+implementation+for+WN+s+xrootd+gateways

Two nodes for testing; needs Grid services to enable more.
These nodes have a high failure rate, as XrdSecGSISRVNAMES is removed on them currently (see below)

Code review in progress; consideration for sparse files needed.

XrdSecGSISRVNAMES on WNs

Secgsi warning because of XrdSecGSISRVNAMES variable
XrdSecGSISRVNAMES=lcg2622.gridpp.rl.ac.uk

XrdSecGSISRVNAMES is set on the WNs (and as a Singularity bound variable) to allow old 4.8.X clients to authenticate against the WN xrootd server (which it thinks is webdav.echo.stfc.ac.uk).
This triggers a warning “secgsi: proxy delegation forbidden when trusting DNS to resolve 'eoslhcb.cern.ch'!”

Removal of the variable not possible as user analysis workflows have this embedded within it.

GGUS:

Deletion problem at RAL

Slow stat calls at RAL

Problem accessing some LHCb files at RAL

Site reports

✅ Action items

  • Create Jira for Checksumming updates for 3.7+ (especially for Rocky 9 releases).

⤴ Decisions

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