LHCb Core Software Meeting

Date and Location

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


Ben Couturier, Illya Shapoval, Joel Closier, Marco Cattaneo, Marco Clemencic (minutes), Markus Frank, Thomas Hartmann (Vidyo)



  • From the LIM: ATLAS iterating internal discussions about CMT2

Round Table


  • Started implementation of SLS sensors for the Nightly Builds
  • The problem of high memory usage by the web-page generation script has been understood and fixed.

Marco Cl.: We need to move the Nightlies code away from LbScripts, because we need a more dynamic release-fix-release cycle... and the version of the scripts that are in production at the moment are not versioned.

Ben: We should review the content of LbScripts, because there are other scripts that need different release frequencies.

Marco Cl.

  • Gaudi v23r1 tagged and being built
    • minor patches and latest RootCnv
  • There has been a problem with SQLDDDB v6r21.
    The problem is that the options pickled (by Ganga) on SQLDDDB v6r20 do not work on SQLDDDB v6r21. The only solution is to regenerate the pickled options using the latest SQLDDDB and re-run. The problem was not really avoidable and it is related to the way we distribute ONLINE snapshots, in the sense that it will probably happen again in the switch from 2012 to 2013 unless we move to Frontier (Oracle is not affected either).
  • The switch to SQLDDDB v6r21 also broke the Monitoring Farm
    • A recipe has been circulated by Markus and Beat
  • Wrong environment of non-SLC(5) hosts. The error is version `GLIBCXX_3.4.9' not found, which means that the LD_LIBRARY_PATH does not contain gcc. We (Vladimir) have a way to work around it, but we need a fix in LCGCMT.

Marco Ca.

  • New stack waiting for Gaudi
    • version of SQLDDDB changed to v7r*
  • We just discovered we didn't update the requirements files for the renaming of the CMT tag 'debug' to 'target-dbg'. We need to be more careful the next time we have this kind of changes.


  • Working on the internal note describing the new deployment model for SQLite files.


  • New LbScript released as 'dev'
    • added ProdConf package to the list of known ones
    • fixes to install_project (--dev-install, propagation of --debug to Update hooks)
    • in sync with the trunk
  • Preparation of the new CVMFS installation machine (in IT)
    • the environment and the tools are in place and running correctly
    • the current way of accessing the machine seems to be over-complicated
      • will discuss with Steve to see if we can skip the lxvoadm hop and if we can connect directly as the 'shared' account.


  • Waiting for Gaudi to prepare the release of Online.

-- MarcoClemencic - 29-Feb-2012

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Topic revision: r1 - 2012-02-29 - MarcoClemencic
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