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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) – 22/04/2021

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

    Follow-up from previous meeting

    DIRAC communities roundtable

    GridPP:

     Daniela

    CLIC:

     André

    • NTR

    LHCb:

     Federico+Chris+Chris+Marko

    • Nothing interesting to report

    EGI + France Grilles:

     Andrei

    • Users started to submit long jobs (longer than the VOMS extension). This is an issue at the moment as the payload renewal inside the CE was failing (M2Crypto error message). Issue created: https://github.com/DIRACGrid/DIRAC/issues/5114. Asked VOMS to increase the default length, but for the moment put back a pre-M2Crypto version

    •  André ARC Information not in BDII (glue2): example ticket https://ggus.eu/index.php?mode=ticket_info&ticket_id=150495 with that problem at KEK, where they had to fix something in the ARC system

    Belle2

     Hideki

    • v7r0 migration ongoing.
    • Trying to use webdav protocol
      • some sites are crushing. libcrypt issue
      • the suggestion is to try with DIRACOS v1r18
    •  Andrei I got rumors that you are thinking to submit DIRAC pilots to Panda for accessing HPC sites.
      •  Hideki not that I know

    JINR

     Igor

    • Also seen proxies renewal issues (looks very similar to EGI issues)
    • Tried to use TransformationSystem for MC
      • looks promising.
      • next step is to start running jobs according to input data
    • Looking into DB12. Some tests will be shared.

    BES3+JUNO

     Xiaomei

    DIRAC releases

    • v7r1p38:
      • Just fixes
    • *v7r2p4:
      • New integration tests. As PR 5094 has been merged, it means that you should update your integration tests accordingly, in case you were using them in your extenion. E.g. LHCb GitLab-CI tests
    • v7r3-pre5:
      • Just fixes on top
      • Using explicitely DIRACOS v1r20

    DIRAC projects

    DIRAC:

    Issues by milestone:

    • v7r1:
      • A few more issues have been added lately
    • v7r2:
      • NTR
    • v7r3:
      • NTR

    PRs discussed:

    • just briefly discussed some of the open PRs.

    WebApp:

    • Merged 2 small PRs for fixes
    • Preparing for pip package. PR is almost ready to be merged. Not yet publishing to pypi, will do later.

    Pilot3:

    •  Daniela https://github.com/DIRACGrid/Pilot/pull/129 (fairly large update to pilot code): It didn’t break anything (this time?) but should this have tags so we can pull specific versions ?
      • maybe use a commit hash?
        • for pulling specific version there should be already the option, but not so trivial
      • devel branch to be actually used, e.g. in certification?

    DIRACOS:

    • xroot5?
      • NTR
    • arc6
      • created a v1r19 and tested in DIRAC certification. Looked OK, but v1r20 had to be created anyway for other issues with the SQLAlchemy version. This was done.
    • condor 8.8?
      • Marko tried several times to have it working. Several dependencies needed.

    DIRACOS2:

    • from previous meetingfts-rest on py3?
      • NTR
    • from previous meeting Question for rucio client… (issue)?
      • NTR
    • N else TR

    VMDIRAC:

    • Using Pilot/Version instead of Cloud/Version

    Documentation:

    • NTR

    OAuth2:

    tornado/HTTPs

    • NTR

    management

    • from previous meeting 1 task left for deploying on CVMFS
      • Not yet done

    COMDIRAC

    • NTR

    other externals, including Rucio

    • PR: https://github.com/DIRACGrid/DIRAC/pull/5067
      • failing tests
      • no updates since last time
      • from previous meeting  Janusz I tried integrating in our setup. Didn’t try the agents.
        • configuration: Rucio insists on having a config file, but all these configs should (could) be put in DIRAC CS. We should insist on Rucio to not needing this config file.

    Release planning, tests and certification

    • Certification machine

    • Next hackathon

      • next week (29th April)
        • v7r3-preX

    Weekly development(s) focus

    NTR

    AOB and topics from Google forum

    • DUW in less then 3 weeks
      • Timetable is shaping: https://indico.cern.ch/event/852597/timetable/#all.detailed
        • Monday: “developments” sessions
        • Tuesday: “experiment reports” session. Prepare your pres, answer the pre-set questions and add whatever content you want. 15min + 5.
          •  Igor I would like to ask 2 more questions:
            • number of jobs ran in the last 2 years.
            • CPU (or Wall) time used by jobs in the last 2 years.

    Next hackathon on April 29th:
    Next BiLD on May 06th: https://indico.cern.ch/event/1032098

    LHCbDIRAC

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