LHCb Core Software Meeting

Date and Location

10:30 - 11:00
CERN (2-R-030)


Colas Pomies, Gloria Corti, Illya Shapoval, Joel Closier, Marco Cattaneo, Marco Clemencic (minutes)



  • Introducing Colas Pomies

Round Table

Marco Cl.

  • Jenkins / Nightly Builds
    • moved git repository to gitlab (LBCORE-829)
    • upgraded server and plugins
    • re-organization of Jenkins' jobs
    • added priority lane for release jobs
  • An ATLAS developer will help testing Gaudi for ATLAS
  • Issue with Beat's script to push alignments and calibrations to Offline CondDB fixed yesterday, but there is another issue to be fixed (affecting a very improbable corner case)

Illya: checked the CondDB deployment. Yesterday there was a burst of updates.
Marco Cl. Beat added several runs in one go, after the fix.

Marco Cl.: Joel, can we access http://eoslhcb.cern.ch form outside CERN? If so, we should move the CondDB deployment files to EOS (instead of WEBAFS).

Marco Ca.

  • Issue with LoKi dictionaries still present (lhcb-lcg-head used LCG 77 instead of dev4)
    • Marco Cl.: the issue was fixed yesterday, but I forgot that I changed lhcb-lcg-head. Will be fixed ASAP.
  • Issue with a test in DetCond to be checked by Marco Cl.
  • Strange problem with Muon calibration in Brunel tests
    • Marco Cl.: there was a retroactive change in a (new) L0MUON condition which should not affect the
    • Marco Ca.: is this change logged somewhere? NO. Can we know what changed in the new calibration conditions? In principle yes, but we need to introduce (automatic) tags to simplify the checks.


  • Problem with permission scheme used by LHCb Simulation: it seems that it was changed. Ben is following up.


  • Increased the frequency of CondDB deployment cron. It cannot be reduced more than that (it currently takes ~7-8 minutes).
  • Ben modified the deployment of CondDB to CVMFS to avoid empty transactions and increased the frequency too.
  • Ariadne
    • moving to gitlab.cern.ch
    • introduce new type of node to track compatibility on Event Data Format

-- MarcoClemencic - 2015-06-24

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