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    BiLD-Dev

    → Europe/Zurich
    2-R-014 (CERN)

    2-R-014

    CERN
    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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    At CERN: Federico, Zoltan, Joel, Hamza, Vladimir
    On Vidyo: Marcelo, Wojtek, Daniela, Simon, Milosz, Andrei, Luisa, Xiaomei

    Apologies: Christophe

     

    Follow-up from previous meeting

    • JSON encoding: PRs #3585 and #3586 have been merged for v6r20
    • FTS3: last PR merged in v6r20 pre version, looks OK right now
    • Reminder to check the old sandboxes for deletion

    Current situation

    DIRAC

    • v6r19p13 is the last production version
      • Mostly fixes
      • Now support for lastest version of ElasticSearch should be OK

    WebApp:

    • The new release procedure of WebApp has been merged, part of v6r20
      • Documentation needs to be updated
      • Test not fully done yet
    • Test for moving WebApp to ExtJS6 ongoing, almost finished
      • Will be for 4.0 version of WebAppDIRAC
      • NOT for DIRAC v6r20, later
      • Extensions would need to be adapted
      • Branches like in DIRAC should be introduced also for WebAppDIRAC [Zoltan]

    Pilot:

    • Wojtek working on few PRs

    Externals:

    • v6r6p4 created. Used in v6r20
      • only for SLC6 for now, so that certification can keep going 
      • at the end it will be also for SL7
    • For future: everything that can be installed with pip install should go in "post installation"
      • Andrei looking into it: https://github.com/DIRACGrid/DIRAC/issues/3444
      • have to figure out how to handle which python version to use
        • not exactly trivial
        • Joel to send a command to Andrei (used in LHCb vo-boxes)

    LCG bundles:

    • current production version is v13r0
    • 4 or 5 new versions of packages of the Grid middleware are available, so new version of the lcgBundle will come
    • need to update the wiki
    • Daniela reported need to add in $PYTHONPATH the path for locally installed packages (see slide)
      • Doesn't look like it's something you want to do
      • Daniela will send to Joel the command that fails
    • Daniela asked to re-include LFC support

    REST:

    • Wojtek will create PRs as soon as possible for:
      • choosing among different authentication methods (OAuth and X509)
      • adding the pilots logging interface
      • Delayed because of issues discovered in the DIRAC stomp interface
      • ...and because of code refurbishment
    • The connection with CS-based authZ will be done later
    • Tornado proposes some unit/integration tests which look easy to use, and that can be integrated in Travis or Jenkins. Maybe also for WebApp.  

    BOINC:

    • NTR, docs still need to be completed

    PyGSI:

    • NTR

    Documentation

    • NTR, just one user asking for better doc for lcgBundle (which we can't fully provide)

    DB12:

    • NTR

    Release planning, tests and certification

    Release planning:

    • v6r19 series
      • NTR
    • v6r20 series
      • pre12 out
      • only one PR with new features (for space occupancy) still need to be included

    Certification process: 

    • v6r20 certification: 
      • Using trello and slack as usual
      • Some progress lately
        • mostly done by Zoltan

    Weekly development(s) focus

    • Move to Web API [continuation from last week]
      • whatever is produced will need to be tested carefully, especially comparing it performances with DISET based implementation
      • Question about "restarting the single handlers"
      • Some things like multiprocessing and JSON are going already in DISET 
    • ARC CEs
      • Daniela reported still issues and need for "patching" from ARC users
      • glue2 support still not there [Vladimir to look into it]
      • [Raja + Andrei + Daniela] to look in details

    DIRAC: current PRs and tasks being worked on

    • NTR

    DIRAC communities roundtable

    • GridPP:
      • Collecting new users, and losing 2 (US based moving to glideinWMS)
      • Tags and matching not perfect yet
      • Some operational and maybe scalability issues with MySQL and services
    • CTA: working on next devs of TransformationSystem (kind of Production Management System)
      • Some French VOs (LHCC, CreativLab, BioMed) interested in using the TS for their production
      • Asking for dedicated tutorial at the DUW
    • ILC: NTR
    • LHCb: 
      • Trying to update the MySQL version to 5.7
        • performance issues, not yet fully sorted out
        • a post mortem will come at some point
    • CNAF (Italian Grid DIRAC service): Virgo the main user-to-be
    • DIRAC4EGI:
      • sorting out several things
        • including actual support
        • Andrei involved
      • several VOs interested

    AOB

    • Next BiLD-Dev meeting will be held in 2 weeks (February 22)

    LHCbDIRAC

    • We should right now concentrate on testing v6r20
      • And then we decide what to base v9r2 on
        • Philippe's PR may probably be included, maybe not alone
    • 4 students this summer
      • for 3 of them their project include using ElasticSearch

     

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