Copy of 2024-10-31 Meeting Notes

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

(Gateway Auth failures)

Thomas, Jyothish (STFC,RAL,SC)

cms-aaa naming convention

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

cms proxy cfg ->unified.cfg

ceph-> tcp.cfg

a separate naming convention would be more appropriate - main/supporting?

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

Thomas, Jyothish (STFC,RAL,SC)

HTCondor

Pelican - 'Wizard' like webUI for configuration

Tokens - non WLCG tokens use different token profiles/protocols

Shoveler

Katy Ellis

Shoveler installation and monitoring

Deletion studies through RDR

Ian Johnson

Deletions

XRD-83 - Getting issue details... STATUS

WN changes

Alexander Rogovskiy

https://github.com/xrootd/xrootd/issues/2308 now in 5.7.1 (and patched 5.7.0).
To be deployed over first 2 weeks of October

periodic hackaton?

group coding/testing for specific tasks

Xrootd testing framework

XRootD Site Testing Framework

testing VM to be set up and be used for preprod testing

Rob C - working on kubernetes deployment component

Unit tests for xrootd (added since 5.7.0)

ctest -VV -C Release -DCDASH=1 -DCOVERAGE=1 -S test.cmake
CDASH sends the test to the xrootd cdash server https://my.cdash.org/index.php?project=XRootD
run as non root

https://github.com/stfc/xrootd-testing-framework/pulls

XrootD gateway specs

100Gb NICs
current usage
25Gb NIC
memory use of xrootd process ~25-35GB
context switch ~800kHz
CPU load ~10-20

Adding NICs to current gateways?
Tom B - bonded NICs were hard to set up and operate,
especially at scale

keeping networking simple preferred

on adding 100G NICs to current gws - switches might get overloaded

SKA Gateway box

James Walder

/wiki/spaces/UK/pages/215941180

Future developments ideas planning work

Ian Johnson Thomas, Jyothish (STFC,RAL,SC)

https://stfc.atlassian.net/wiki/spaces/X/pages/459997229/Notes+from+planning+meeting+22-04-2024?atlOrigin=eyJpIjoiNDRmNDEwOWI3Y2NhNDg5MDg4ZmZiYTNhNTliOWUwNmUiLCJwIjoiYyJ9

Tokens Status

To split this into Operational aspects and any development / long-term planning aspects.

technical implementation to accept tokens is in place, issues seem to be due to VO use cases on scheduling and accounting

accounting - it’s in the pipeline but not coming soon on APEL

Checksums improvements

Alexander Rogovskiy Thomas, Jyothish (STFC,RAL,SC)

There is a github issue open to merge this upstream https://github.com/xrootd/xrootd/issues/2338

streaming checksums