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\uD83D\uDC65 Participants

Apologies:

Jyothish, Sam

\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

XRootD Releases

Sam

NTR

Prefetch studies

Alex

Status of tests / deployment without prefetch

CMSD rollout

Jira Legacy
serverSystem JIRA
serverId929eceee-34b0-3928-beeb-a1a37de31a8b
keyXRD-41

Status:Next plans:

Tests being added for manager hosts

CMSD operations: observations

gateways appear highly ‘loaded’ recently (e.g. system load and number of connections)

CMSD outstanding items

Icinga / nags callout tests changes.

Improved load balancing / server failover triggering

better 'rolling server restart script'

Documentation; setup / configuration / operations / troubleshooting / testing

Review of Sandbox and deployment to prod.

Other recent observations on Gateways

Lots of reads on Gateways using parallel threads (e.g. AIO); most likely coming from offsite XCaches for (only?) atlas VP reads …

Occasional crashes in ‘thread’ calls

Memory usage increasing (possibly due to the AIO calls) - may want to raise the systemd hard memory limit

Gw6 (yesterday), “Forgot” how to do authentication - permission denied on many transfers; not caught by nagios checks

Tokens testing

AAA Gateways

Recent Sandbox updates with Katy:
- Add back memory cache
- ensure latest XrdCeph version included
- enable non-striper reads
- enable ztn token access (Passing CMS Sam tests)NTR

AAA Gateways

Sandbox ready for review:

http://aquilon.gridpp.rl.ac.uk/sandboxes/diff.php?sandbox=jw-xrootd-aaa-5.5.4-3

Floating IPs for VM test cluster

Does not appear to be viable (explanation?)

SKA Gateway box

/wiki/spaces/UK/pages/215941180

numerous network changes needed / being done

on GGUS:

Site reports

✅ Action items

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