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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

dev-gw1

dev-gw2

dev-gw3

dev-gw4

multistream

alice-test

rgw deployment test

token testing

gw1

gw2

gw3

gw4

gw5

gw6

gw7

gw8

xrd554

checksum

SKA

prod

prod

prod

xrd554

CMSD

gw10

gw11

gw12

gw13

gw14

gw15

gw16

xrd554

prod

prod

prod

CMSD

prod

prod

Batch farm WN

Use

lcg2269-2270

Vread

lcg2268

Xrd553

Recent sandbox’s for review / deployments:

Item

Presenter

Notes

XrootD 5.5.4 testing

link ssl read errors still happening, but gws in sandbox have been stable during high traffic times. Socket connections are closing better (seeing more socket errors being handled from client sigterm) compared to host in 5.5.0

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

  • No labels