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    BiLD-Dev

    → Europe/Zurich
    Federico Stagni (Conseil Europeen Recherche Nucl. (CERN)-Unknown-Unknown)
    Description

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

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    working notes
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    BiLD (Bi-weekly DIRAC Development meeting) – 11/03/2021

    At CERN: Still, nobody :/
    On Zoom: Federico, Alexandre, André, Andrei, Andrii, Cedric, Christophe, Christopher, Daniela, Hideki, Janusz, Marko, Simon, Vladimir, Xiaomei
    Apologies:

    Follow-up from previous meeting

    • Ran hackathon last week on v7r2-pre37:

      • trello board here
      • VMDIRAC not yet fully installed nor tried
      • ran with CS on https, minor fixes had to be done (mostly doc). Also to puppet module
        • v7r1 clients are not compatible with installations where the CS runs on https, but it was expected
      • Some more fixes had to be done

    • PRs merging strategy?

      •  André No time to investigate yet.
      •  Andrei I made some remarks, I’d like an update. If we are switching to this mode, we never come back.
        •  Christopher maybe not too bad. We can go back to old mode if we don’t like it.
        •  Andrei we can’t anyway keep both in parallel, it’s one or the other.
      • “Random” developers need special attention.

    DIRAC communities roundtable

    GridPP:

     Daniela

    • NTR

    CLIC:

     André

    • Scheduling update to v7r0

    LHCb:

     Federico+Chris+Chris+Marko

    • We ran yesterday a LHCbDIRAC hackathon with v7r2-pre38. Quite OK, a few PRs with minor fixes created.
      • Managed to run a few services on a kubernetes cluster.
    • Using CTA at CERN (replacement of Castor)
      • CTA will also be used at RAL

    EGI:

     Andrei

    • Still preparing the migration.

    France Grilles:

     Andrei

    • Started running some SiteDirectors with Pilot3

    Belle2

     Hideki

    • NTR

    BES3/Juno:

     Xiaomei

    • Still preparing update to v7r0.

    DIRAC releases

    • v7r1p31 + v7r1p32:
      • CHANGE: (#5001) JobAgent: if we don’t match a job, independently from the reason, we wait a bit longer before trying again
      • CHANGE: (#5001) JobAgent: moved check of availability of CE before doing anything else
      • NEW: (#4998) JobWrapper - find executables from PATH if not using an absolute filename
    • v7r2-pre37 + v7r2-pre38:
      • CHANGE: (#4997) Use prompt-toolkit for password input when generating proxies
      • CHANGE: (#4994) dirac-install.py should now be taken from management
      • CHANGE: (#5010) Use ConfigurationClient in CSCLI and CSShellCLI
      • CHANGE: (#5026) Remove DIRAC.Core.Utilities.ExitCallback
      • CHANGE: (#5019) Remove IRODSStorageElementHandler

    DIRAC projects

    DIRAC:

    By milestone:

    • v7r1:
      • almost only documentation is still there to be done
    • v7r2:
      • non-urgent issues
    • v7r3:
      • Make RSS VO-aware: PR created against v7r1, will need to be ported to v7r3
        • comments in there…
      • OAuth2 will be the main feature (see below)

    WebApp:

    Pilot3:

    • Updates for Jenkins (CC7 default, and CS using http) and dirac-install following the version in DIRACGrid/management

    DIRACOS:

    • NTR

    DIRACOS2:

    • fts-rest on py3?
      • not yet (soon?)
    • DIRACOS2 builds for ARM and Power8 (compatible with Power9?) are there. They have been also tested.
    • Question for rucio client… (issue)? (Cedric to answer)
    • Review from Andre’?
      • consider it “done”.
    • first non-pre-release today.

    VMDIRAC:

    • NTR
    • Almost got it working in Certif server.

    Documentation:

    OAuth2:

    tornado/HTTPs

    • NTR (just small PR).

    management

    diraccfg

    • NTR

    other externals, including Rucio

    • Rucio File Catalog implementation from Belle
      • Cedric not connected today…
      • Needs (urgently?) a working implementation
      • GridPP has not yet tested it, but some comments went in the PR, especially on the point of configuration.
        • the GridPP Rucio server is multiVO, and not fully working yet.

    Release planning, tests and certification

    • Certification machine

      • VMDIRAC
        • puppet updated for VMDIRAC. Please don’t update etc/dirac.cfg or bashrc by hand. puppet runs every 30 mins.
        • nearly there
      • Reminder: task for multi-vo
        •  Daniela I will write some multi-vo tests

    • Next hackathon

      • next week (18th March)
        • first hackathon for v7r3-pre1

    Weekly development(s) focus

    upgrading to v7r2

    • The structure with src/PROJECTNAME/code... should be adopted
    • A setup.py should be written
    • For Vanilla projects this affects COMDIRAC
      • VMDIRAC and WebAppDIRAC are only server, so no need to update immediately.
    • in LHCb we:
      • created a setup.py, and we can do pip install LHCbDIRAC
      • updated quite some code for python3

    AOB and topics from Google forum

    Next hackathon on March 18th: https://indico.cern.ch/event/1015938/
    Next BiLD on March 25th: https://indico.cern.ch/event/1015936/

    DUW10 online: https://indico.cern.ch/e/DUW10 10-11th May 2021:

    • announced “officially”, first registrants (not you!)
    • Sent a mail to presenters…

    LHCbDIRAC

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