Technical Coordination Weekly

Tuesday 20 Oct 2020, 14:00 → 15:30 Europe/Stockholm

Zoom

Balazs Konya (Lunds universitet)

Technical coordination group members and invited persons

ZOOM link: https://lu-se.zoom.us/j/730780003

20 October 2020, 14:00 - 14:20

Present: Mattias, Balazs, David, Aleksandr, Anders, Oxana (until 14:15)
Apologies: Maiken

== News
More new sites install ARC, not without problems (due to old stuff like SGE and such). There's interest for supporting LHCb computing in Sweden, which is technically not an issue. AuthWG ow WLCG is quite active, we need to follow it in order to make sure it doesn't forget about third-party copy.

Aleksandr is almost ready with the REST interface first prototype.

== Bugs
Nothing to report, reminders are received

== Release
No new problems reported after the express release. Turns out that serious sites do autoupgrades because of security considerations, so we can't remove components in minor releases. This probably means that we need major releases more often.

David would like to see a minor release within one month

== A.O.B.
ARC7 OrgCom meeting is next week, same time slot and place.

14:00 → 14:20 News

ARC-related news from various activities

27 April 2021, 14:00 - 15:05
Present: Maiken, David, Balazs, Mattias, Anders (until 14:15), Alexander, Oxana

== News

There are only 6 old ARC sites in EGI left, others upgraded. Builds for Fedora/Debian are made. REST testing with aCT revealed a couple of problems, that are getting fixed. Vega HPC pushes scalability to the limits, performance gets worse when there are problems with datastaging, because of heavy load, epecially wit EMI-ES. More details will be presented at the NDGF-T1 AHM and ARC workshop later. Tokens tests with REST interface are successful. Tokens hackathon is scheduled on June 3 and 4, afternoons (14:30 - 17:30 CEST). Cleanup of scratchdir (and its documentatin) is still work in progress. A use case for job aggregation/clustering comes up, especially with newer systems than process jobs very fast (several grid jobs should be aggregated as a single batch job).

== Bugs

Some small progress with bugfixing. Still 12 bugs in NEW state, getting old.

== Release

Testing procedure for new APEL protocol will be prepared soon. Slovenian ad Swiss sites are good candidates for testing. So transition to the new protocol will be probably a bit delayed.

14:20 → 14:30 Actions follow-up

Follow-up on actions defined at the previous meeting

14:30 → 14:50 Release status

Coming release status

14:50 → 15:20 Bugs

New bugs since previous meeting, as well as blockers and critical ones

15:20 → 15:30 A.O.B.