2025-04-03 Meeting Notes
- James Walder
- Matt Doidge
Date
Apr 3, 2025
Participants
@James Walder
@Alexander Rogovskiy
Lancs: Matt, Gerard, Steven
Glasgow:
Apologies:
CC:
Goals
List of Epics
New tickets
Consider new functionality / items
Detailed discussion of important topics
Site report activity
Discussion topics
Current status of Echo Gateways / WNs testing
Recent sandbox’s for review / deployments:
Item | Presenter | Notes |
|
|---|---|---|---|
Operational Issues |
|
|
|
Compilation and rollout status of RAL XRootD versions | @Thomas, Jyothish (STFC,RAL,SC) | 5.7.3 released (awaiting other changes to gateways) 5.8 officially released streamed checksums in testing |
|
cms-aaa naming convention | @Thomas, Jyothish (STFC,RAL,SC) | 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, and sandbox is prepared and has been tested on a test host |
|
cms-aaa jemalloc use | @Thomas, Jyothish (STFC,RAL,SC) | memory limits caused some issues under load |
|
cms-aaa overhaul |
| Xcache gateways |
|
Shoveler | @Katy Ellis |
|
|
On the fly Checksums | @Ian Johnson
|
|
|
Deletions |
|
| |
XRootD Writable Workernode Gateway Hackaton
| @Thomas, Jyothish (STFC,RAL,SC)
|
|
|
Plan: file query system to summarize XRootD Logs |
|
|
|
100 GbE Gateway testing: | @James Walder @Thomas, Jyothish (STFC,RAL,SC) | UKSRC - Tier-1
|
|
UKSRC Storage Architecture |
|
|
|
Tokens Status |
|
token leak cannot be prevented on redirector setups as http redirection moves the headers to url for redirects. |
|
packet marking |
| svc20 xrd 731 xrootd.pmark map2act cms default default needs to be added for path based redirection to work |
|
test stress testing framework |
| Script ready, first test to be arranged |
|
on GGUS:
Site reports
Lancaster:
Naught much going on, currently having a rethink of our xrootd gateway networking as we have some 100Gb capable servers waiting to go into racks.
Glasgow -
Action items