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    BiLD-Dev

    → Europe/Zurich
    Federico Stagni (CERN)
    Description

    Bi-Weekly "Loyal" DIRAC developers meeting. And, following, the LHCbDIRAC developers meeting.

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    Meeting ID: 910 8369 4183
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    BiLD (Bi-weekly DIRAC Development meeting) – 19/08/2021

    At CERN: Christopher, André (in our offices…)
    On Zoom: Federico, Andrei, Andrii, Cedric, Daniela, Hideki, Janusz, Patrick (CTA), Simon, Xiaomei
    Apologies:

    Follow-up from previous meetings

    DIRAC communities roundtable

    GridPP:

     Daniela

    • NTR

    ILC/CLIC/FCC:

     André

    • Updating iLCDirac to python3 compatibility

    LHCb:

     Federico+Christophe+Christopher+Alexandre

    • The default UI is py3 (on CVMFS)
      • pilots still using Py2, by default
        • 5% of them using python3 (including Singularity)
    • Had to remove several Sandboxes (incident described in PR)

    EGI:

     Andrei

    • NTR

    Belle2:

     Hideki, Cedric

    BES

     Xiaomei

    • Upgrading to v7r1, and moving from Pilot2 to Pilot3

    CTA

     Patrick

    • upgraded to v7r2 some time ago.

    DIRAC releases

    • v7r2p20 + v7r2p21:
    • v7r3-pre20 + v7r3-pre21:
      • removed src/DIRAC/Core/scripts/dirac-install.py
      • Removed GlobusComputingElement
      • Add a PilotStatus module to clearly define the pilot status in the code

    DIRAC projects

    DIRAC:

    Issues by milestone:

    Other issues:

    • Moved 3 issues to new v8.0 milestone

    PRs discussed:

    WebApp:

    • New releases, mostly fixes. Some issues can also be closed.

    Pilot:

    DIRACOS:

    DIRACOS2:

    • from previous meetingfts-rest on py3?
      • NTR
    • Created new version for fixing the elasticsearch client (for supporting OpenSearch)

    Documentation:

    • New theme on integration is there. It has ads.

    OAuth2:

    tornado/HTTPs

    • NTR

    management

    diraccfg

    • NTR

    COMDIRAC

    • NTR

    DB12

    • The existing PR is technically ready for being merged, but py3 gives slightly different results that have not been properly investigated yet.
      •  Chris you should be surprised, as just the compilation of python can lead to different results.
        •  Federico still, we should make sure not to get big differences

    other externals, including Rucio

    Release planning, tests and certification

    • Certification machines

      • lbcertifdirac70 machine:
        • CERN is moving from elasticsearch to opensearch. A new cluster has been created (https://es-dirac-certification.cern.ch/) and all users in diracproject-users are admin.
        • This machine is staying as the machine from which production releases are derived. The security will keep being based on X509, and VOMS proxies. All hackathons on these machines will be following the “usual” path.
      • lbcertifdiracoauth machine:
        • The machine will be used for testing all interactions in the “tokens world”

    • Next hackathon(s)

      • We need to accelerate with testing of developments for tokens. The suggestion is to run the following 3 hackathons, in this order:
        • pre: Move lbcertifdirac70 to py3 server. “Standardize” how we make py3 servers, and apply the same recipe for installing lbcertifdirac70 and lbcertifdiracoath
          • this should be done (TBC tomorrow)
        1. on lbcertifdirac70: standard hackathon, on the v7r3-preX tag -> tomorrow! at 10am
        2. on lbcertifdirac70: standard hackathon, on the content of token PR -> in one week
        3. on lbcertifdiracoath: auth hackathon, on the content of token PR -> in 3 weeks

    AOB and topics from Google forum

    • GitHub is introducing “Discussions”: https://github.com/DIRACGrid/DIRAC/discussions/landing. Maybe replace the google forum?
      •  Daniela to participate in discussion, you would need an account on github, while for the google forum just a mail
      • TBD at the next meeting

    Next hackathon: tomorrow, 10 AM
    Next BiLD on September 16th: https://indico.cern.ch/event/1065229/

    LHCbDIRAC

    • from previous meeting https://trello.com/b/BQvEbteg/deploy-v10r2
      • ES stuff: we will migrate to OpenSearch, starting from the DIRAC certification, then LHCb certification, and only then Production
    • for Run3 productions, the use of ProdConf will be most probably deprecated. Options will be in a JSON. Also, most probably we won’t use lb-run
      • RunApplication.py should continue holding the logic. There is also a test for it that runs regularly in Jenkins, as part of the Pilot Workflow tests.
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