...
Lancaster:
Matthew Steven D.
Gerard Hand
Glasgow:
Samuel Skipsey
Apologies:
\uD83E\uDD45 Goals
...
Item | Presenter | Notes | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
XRootD Releases | No news on 6.2 yet | ||||||||||
Prefetch studies | Alex | prefetch works but needs an increased timeout env variable | |||||||||
Deletion studies through RDR | Ian | ||||||||||
CMSD rollout |
Status:root protocol in testing from CMS, change finalization early Sep webdav alias has been pruned | ||||||||||
CMSD operations: observations | gateways under heavy system load:  alice gateways were suspected to be causing issues with the ceph cluster due to read amplification caused by the xrdceph buffers:  
 Oxford VP moved to QMUL | ||||||||||
CMSD outstanding items | Icinga / nags callout tests changes. - live and available Improved load balancing / server failover triggering - better 'rolling server restart script' Documentation; setup / configuration / operations / troubleshooting / testing Review of Sandbox and deployment to prod. | ||||||||||
Tokens testing | NTR | ||||||||||
AAA Gateways | Sandbox ready for review: http://aquilon.gridpp.rl.ac.uk/sandboxes/diff.php?sandbox=jw-xrootd-aaa-5.5.4-3 | ||||||||||
SKA Gateway box | /wiki/spaces/UK/pages/215941180 now working using ska pool on ceph dev … | ||||||||||
extra gateways deployment… | DNS round robin for internal (batch farm) use of the gateways on the new network pending ipv6 external access ~2 weeks | ||||||||||
ALICE WN gateways | (Birmingham using eos, Oxford no storage) |
on GGUS:
Site reports
Lancaster - no developments. Matt is pondering how to get xrootd to perform “central banning”.
Sam Skipsey - higher load on ceph (possibly from validation), swapiness disk set to 0 from 10
Does OS upgrade preserve the disk in Ceph? probably yes but not tested on sites. Gerard (Lancs) might do this
✅ Action items
⤴ Decisions
...