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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.
    working notes
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    Bi-weekly DIRAC Development meeting – 16/04/2020

    At CERN: Nobody, of course!
    On Vidyo: Federico, Andrei, Igor, André, Zoltan, Simon, Marko, Christophe, Alexandre, Christopher, Andrii, Daniela, Xiaomei, Vladimir, Janusz

    Apologies:

    Follow-up from previous meeting

    • PR #4469 merged (ProxyDB): tests OK again
    • MonitoringDB getting corrupted (DIRAC certification + LHCb certification)
      • understood how to fix it, not why it get corrupted
      • Framework/Monitoring still shaky in LHCb Certification setup and DIRAC certification
      • should consider a flag to disable it completely, but it would be better understing why
    • Getting a bit closer to having a date for DUW 2021

    DIRAC communities roundtable

    GridPP:

    • v6r22 in production
    • v7r1 on pre-prod servers

    CLIC:

    • Failure of 3rd party copy from castor to eos (using GFAL2_XROOT) : seems like a fix needed on GFAL2 side, but more investigation is needed

    LHCb:

    • Plan to put v7r0 in prod next week

    France Grilles:

    • BioMed and COVID-19 activities stalling ATM

    EGI:

    • finally made OSG researches for WeNMR. Working pretty well. Configured 2 logical queues (1 for COVID-19 specific) with HTCondor specific parameters.
    • v7r0 in production
      • with S3 storage element enabled but not fully in production

    Juno/Bes3:

    • tried EOS. 3rd party copy with xrootd not possible. 2 SEs can’t communicate directly if they don’t talk the same protocol.
      • askef if there will ever be a matrix of protocols: no

    Nica:

    • not much activity, so started updating to v7r0. Looks like installing easier. Pilot3 working fine. Also moving to MySQL 5.7.

    Current situation

    DIRAC

    • v6r22:
      • v6r22p26 is buggy
    • v7r0:
      • v7r0p19:
        • new: introduced S3 storage
      • v7r0p20:
        • new: WLCGAccountingHTTPJson occupancy plugin (should hopefully become the default)
        • fix for cleaning the DataFiles table when cleaning a Transformation
    • v7r1:
      • created the v7r1 tag, but not really: the currently existing PRs (mostly for docs) need to be rebased and then they will be included.

    WebApp:

    • NTR

    Pilot3:

    • NTR

    DIRACOS:

    • Doc moved to RST, published in readthedocs
    • v1r11 tested in LHCbDIRAC, not yet included in any DIRAC release

    VM:

    • NTR

    Documentation

    • VMDIRAC documentation linked to the main DIRAC doc
    • DIRACOS readtheadocs created (diracos.readthedocs.io) but not yet linked to main one (a few entry points possible)

    OAuth2:

    • NTR

    tornado, M2Crypto and other externals

    • NTR

    management

    • NTR

    diraccfg

    • NTR

    Release planning, tests and certification

    Release planning:

    • v6r22 series
      • [Federico] will fix the failing test (with a PR)
    • v7r0 series
      • NTR
    • v7r1 series
      • Merged #4549 to reduce the number of tests, then everyone else should rebase
      • Hackathon last week pretty OK
    • v7r2 series
      • the exact content will be fully discussed next time, but already existing PRs can go in there (and the Auth2 PRs should be rebased)

    Weekly development(s) focus

    Python 3 recommendations (PR https://github.com/DIRACGrid/DIRAC/pull/4521)

    • everyone’s invited to submit their own recommendations and experience
    • we need a strategy:
      • split in small, manageable tasks
      • start with seeing that the linter is OK
        • doing it directory by directory (Federico will start with one example)

    DIRAC: current PRs and tasks being worked on, or topics from Google forum

    • GridPP: we have to register files of users/VOs in DIRAC (https://github.com/DIRACGrid/DIRAC/issues/4548). Need to work out better how the users work.
      • this is anyway a quite general case: what can at the moment probably solved with a case-specific script might be generalized later

    AOB

    Next week: probably no hackathon

    Next BiLD in 2 weeks.

    LHCbDIRAC

    In order to deploy v10r0:

    • CVMFS client (should be solved today?)
      • Chris B should have enough karma
    • issue with the monitoring
      • Chris will have another look
    • Ganga needs to release (https://github.com/ganga-devs/ganga/pull/1640)
      • as they are using deprecated API calls (deprecated since very long)
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