RAL Tier1 Experiments Liaison Meeting

Wednesday 22 Jun 2022, 12:30 → 13:50 Europe/London

Access Grid (RAL R89)

12:38 → 12:39 Major Incidents Changes

12:39 → 12:40 Summary of Operational Status and Issues

Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))

Weekly Report 22 June 2022.docx

Weekly Report 22 June 2022.pdf

12:40 → 12:41 GGUS /RT Tickets

https://tinyurl.com/T1-GGUS-Open
https://tinyurl.com/T1-GGUS-Closed

12:41 → 12:42 Site Availability

https://lcgwww.gridpp.rl.ac.uk/utils/availchart/

https://cms-site-readiness.web.cern.ch/cms-site-readiness/SiteReadiness/HTML/SiteReadinessReport.html#T1_UK_RAL

http://hammercloud.cern.ch/hc/app/atlas/siteoverview/?site=RAL-LCG2&startTime=2020-01-29&endTime=2020-02-06&templateType=isGolden

12:42 → 12:43 Experiment Operational Issues

12:44 → 12:45 VO-Liaison ATLAS

Speakers: James William Walder (Science and Technology Facilities Council STFC (GB)), Dr Tim Adye (Science and Technology Facilities Council STFC (GB))

Network intervention:

- Issues seen with failure transfers to/from Antares on Saturday;  Similar for Echo as a Destination.
- For RAL as Source with Echo, transfers worked as normal. 

2022 Disk pledges now set for ATLAS (in internal ATLAS json). 

Global problem overnight related to Panda and Database; killed many jobs.

 

12:45 → 12:46 VO Liaison CMS

Speaker: Katy Ellis (Science and Technology Facilities Council STFC (GB))

No particular problems from the network intervention. Things came back with slow reads on the farm, but these appear to be dominated by 2017 WNs. The farm is filled from the oldest to the newest tranches, so CMS probably picked up more 2017s than normal. 

Katy currently at CERN. 

Still to be investigated - slow deletion rate. Tom Byrne expects it to be slower than a file system, but if it's ~20 seconds for a 1GB file then that's 'too slow'.

12:50 → 12:51 VO Liaison LHCb

Speaker: Raja Nandakumar (Science and Technology Facilities Council STFC (GB))

12:55 → 12:58 VO Liaison LSST

Speaker: Timothy John Noble (Science and Technology Facilities Council STFC (GB))

13:00 → 13:01 VO Liaison Others

13:05 → 13:06 Experiment Planning

13:10 → 13:11 Euclid

13:15 → 13:16 SKA

13:20 → 13:30 Dune/protoDune

13:30 → 13:31 AOB

13:35 → 13:36 Any other Business

Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))