2023-02-23 Meeting Notes

 Date

Feb 23, 2023

 Participants

  • @James Walder

  • @Thomas, Jyothish (STFC,RAL,SC)

  • @Emmanuel Bejide

  • @Ian Johnson

  • Glasgow: Apologies Sam

  • Lancs: Matt, Gerard, Steven,

  • Manchester Alessandra

 Goals

  • List of Epics

  • New tickets

  • Consider new functionality / items

  • Detailed discussion of important topics

  • Site report activity

 

 Discussion topics

 

Item

Presenter

Notes

 

Item

Presenter

Notes

 

5.5.3-2 available for testing

 

 

 

simultaneous file reads issue

JW

https://stfc.atlassian.net/browse/XRD-54

Branch tested at Glasgow:
Buffered io multibuffers by snafus · Pull Request #38 · stfc/xrootd-ceph

Testing enabled on ceph-gw14 - observing some cases of simultaneous numbers of reads coming in, for atlas VP queues - ie. going via an Xcache. Suggest to monitor on this gateway for a while longer.

 

Status of space reporting and tests on Alice dev gateway

 

https://stfc.atlassian.net/browse/XRD-21

Including unified setup

 

Alice gateway problems in 'ADD' file uploads

 

https://helpdesk.gridpp.rl.ac.uk/Ticket/Display.html?id=480759

http://alimonitor.cern.ch/display?imgsize=1024x600&interval.max=0&interval.min=13244400000&job_stats.owner=mcosenti&page=SE%2Ftests&pinned=true&plot_series=ALICE%3A%3ARAL%3A%3ACEPH

 

CMSD status

 

https://stfc.atlassian.net/browse/XRD-41

https://helpdesk.gridpp.rl.ac.uk/Ticket/Display.html?id=478561

certs now installed.

 

Monitoring of memory spikes

 

script developed, setting up sandbox with cron job

 

 

 

GGUS:

Deletion problem at RAL

Slow stat calls at RAL

Problem accessing some LHCb files at RAL

Site reports

 Action items

  • Create Jira for Checksumming updates for 3.7+ (especially for Rocky 9 releases).

  •  

 

 Decisions