• ADC
  • LHC Operation started (ramped up to 2000 bunches). No problems on data processing side.
  • RPG/Data Consolidation campaign is currently running which adds afdditional traffic to tape systems.
  • ARM resources at CERN increased to 2k slots (Monit)
    • Running only Full Simulation (the only physics validated ATLAS workflow).
    • Extremely low failure rate: 1/2650 failed/finished jobs (Monit)
    • For the same period at CERN x86 the failure rate for Full Simulation is 3% (Monit)
  • HC blacklisting:
    • 2/3 AFTs were relying on a single input file which was effectively testing the one disk server storing this file. These tests will be replaced with same test, new software version, more and smaller files (DAODs instead of AOD) 
  • IGTF Root CAs is still using SHA-1 (deprecated 10 years ago) which forces EL9 WNs to re-enable SHA-1.
    • ATLAS officially requested an upgrade of the CA (IGTF) from WLCG.
    • For OSG, Alma9 nodes switch to SHA-1 (OSG Documentation)
    • WLCG Service Report: Link: “Being followed up, but a quick solution looks very unlikely”
    • Relevant GitHub issue: https://github.com/dlgroep/fetch-crl/issues/4
• USATLAS
  • SWT2
    • Higher load with high I/O jobs overloads the storage which makes HC jobs fail which blacklists the site.
      • Can limit the average I/O per PQ in CRIC
      • Not transparent on what is the configuration behind the internal xroot door.
    • No news on LSM decomissioning
  • AGLT2 PQs reconfigured (agreed with AGLT2 admins):
    • AGLT2: maxrss:32000
    • AGLT2_VHIMEM: minrss:32001, maxrss:48000
  • SLAC
    • Wei managed to configure the local Frontier