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\uD83D\uDDD3 Date

\uD83D\uDC65 Participants

Apologies:

CC:

\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

Recent sandbox’s for review / deployments:

Item

Presenter

Notes

Operational Issues
Gateways and WNs:
- Current status and upcoming changes

(Gateway Auth failures)

Upgrades of GWs complete

AAA gateways with large numbers of connections:

image-20241128-123546.png

(gw10):
 3305 CLOSE-WAIT
37931 ESTAB

~3k ESTAB from remote hosts, 2.8k CLOSE_WAIT from remote hosts
xrd.timeout idle 60m read 10
in current config

throttle increase seems to have fixed it

cms-aaa naming convention

cms-aaa is the only remaining personality to use proxy/ceph as the xrootd service names


Separate naming convention would be more appropriate, to have main/supporting

(not so urgent).

CC created, but due to be reviewed December

XRootD Managers De-VMWareification

Thomas, Jyothish (STFC,RAL,SC)

Option 2 preferred for efficiency, but Option 1 decided on

Option 1 would be simpler to implement for a temporary fix, as the move would be reversed

antares tpc nodes to be moved to an echo leafsw, to confirm ipv4 real estate with James

Compilation and rollout status with XrdCeph and rocky 8: 5.7.x

Thomas, Jyothish (STFC,RAL,SC)

Shoveler

Katy Ellis

Shoveler installation and monitoring

Deletion studies through RDR

Ian Johnson

Deletions

XRD-83 - Getting issue details... STATUS

XRootD Writable Workernode  Gateway Hackaton

Thomas, Jyothish (STFC,RAL,SC)

XRootD Writable Workernode  Gateway Hackaton (XWWGH)

Tues 12th Nov 1600
Hackaton writeable workernode

Outcomes

Xrootd testing framework

XRootD Site Testing Framework

100 GbE Gateway testing:
SKA / Tier-1

James Walder

/wiki/spaces/UK/pages/215941180

UKSRC Storage Architecture

Tokens Status

  • Operational

  • Technical

  • Accounting

 

 

on GGUS:

Site reports

Lancaster: Mostly a lot of wailing and gnashing of teeth.

Is discussed in many meetings this week, we had a short power outage last Friday night knocked out a small chunk of our cluster. We came out of that looking okay, with just a few degraded PGs, but keep tripping up as Ceph goes readonly due to falsely thinking an OSD is full (when it’s got 25% free space) until Gerard kicks it.

Glasgow

✅ Action items

How to replace the original functionality of fstream monitoring, now opensearch has replaced existing solutions.

⤴ Decisions

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