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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) – 26/01/2023

    On Zoom: Federico, André, Andrei, Alexandre, Christophe, Christopher, Daniela, Hideki, Simon, Janusz, Ueda, Michel
    Apologies:

    Follow-up from previous meetings

    • Last BiLD several weeks ago (in 2022)
      • all updates below
    • No hackathon for a rather long-ish time (we should have one next week)

    DIRAC communities roundtable

    LHCb:

    Federico+Alexandre+Christophe+Christopher

    • DIRAC v8.0 deployed in production this Monday
      • Few fixes that escaped several hackathons needed, so PRs created and merged quickly, then created new releases.
      • Prob with content of UserProfile DB, fix applied directly to the content of the DB
      • Security loophole discovered for WebApp, fixed with PR already merged and release made
      • Changes to Nginx config actually problematic, as not considering the possibility of an alias. A better version will come.
    • Have been asked where we stand concerning token deployment
      • need quick-ish what’s being developed

    EGI

    Andrei

    • Preparing for the 8.0 migration (2 servers already migrated). A test server is deployed to test new releases and to work on tokens stuff.
    • Added 3 or 4 more federated clouds using the Cloud CE. Running OK.
      • Token-based access also fine.

    ILC/CLIC/FCC/Calice:

    André

    • Not yet migrated to 7.3. Machines running, but services not yet in use from these machines.
    • Technical Student starting Feb 1

    Belle2

    Hideki

    GridPP:

    Daniela+Simon+Janusz

    • XRSLExtraString: AREX uses seconds, ARC uses minutes: https://ggus.eu/index.php?mode=ticket_info&ticket_id=160024
    • Intermittent problems with configuration updates: fails with the usual “versions differ”, needs restart of Configuration Server to clear
      • Andrei do you have an auto-merge flag? If you do, then the update will happen in the backgroud
      • Daniela No, but I don’t think this is the case. Also seen on our pre-prod server
    • Date for next v7r3 release ? We intend to deploy promptly, mainly for ARC fixes.

    Topics from GitHub/Discussions or Google forum

    only un-answered topics:

    • Few updates but nothing to be discussed

    DIRAC releases

    • v7r3
      • The last v7r3 release was created in 2022, it’s time for a new patch as several fixes went in
    • v8r0
      • Created several releases, last one is v8.0.13
        • Mostly for several fixes needed with LHCb going in production with it
        • DFC: New getDirectoryDump method
        • NEW: (#6659) Singularity detects locally mounted file system on the worker node to bind mount
    • v8r1
      • Have not done a new pre-release in a while

    DIRAC projects

    DIRAC:

    Issues by milestone:

    Other issues:

    PRs discussed:

    WebApp:

    Pilot:

    DIRACOS2:

    • from previous meeting htcondor 9.0.x updated to fix scitokens support
      • fixed
    • Chris Is anyone using v7r2 client with py3?
      • Still, for a few more days (CLIC), a bit longer (May, Belle2)
      • Chris we might end up breaking v7r2 support
      • will need to update to OpenSSL 3 early next year as OpenSSL 1.1.1 will reach EOL soon: https://github.com/DIRACGrid/DIRACOS2/pull/95
    • MySQL 8.0.27 version forced, as it drops support for old TLS
      • and VOs using MySQL 5.7.9 or earlier? That would break with the next DIRACOS release

    Documentation:

    • NTR

    OAuth2:

    tornado/HTTPs

    management

    • from previous meeting 3 issues left, still valid
      • NTR

    diraccfg

    • from previous meeting Christopher Do we want to make a release that drops support for py2?
      • yes
      • fine by GridPP

    COMDIRAC

    [name=Daniela]

    DB12

    • NTR

    Rucio

    • NTR

    Tests

    Release planning, tests and certification

    Certification machines

    • lbcertifdirac70 machine:
      • Computing Element of each supported type should be configured (HTCondorCE, 2 ARCS (Alexandre (maybe use RALPP and Glasgow ? I can talk to them if there are issues --Daniela)), 1 Cloud (Daniela - this is already part of the tests), SSH). Consider OAuth tests as well - what is needed as far as certification servers configuration is concerned.
      • Daniela: Enabled (and tested, at least with X509) WLCG VO for token testing. Needs update in puppet for /etc/grid-security/vomsdir and /etc/vomses, please.
        • Christophe I’ll check and add it
        • Daniela Still missing as of 14/12/22 A working config can be found at /cvmfs/grid.cern.ch/etc/grid-security/vomsdir/wlcg/ and /cvmfs/grid.cern.ch/etc/grid-security/vomses/wlcg-voms.cloud.cnaf.infn.it
    • lbcertifdiracoauth machine:
      • NTR

    Next hackathon(s)
    *

    AOB

    Next hackathon: February 2nd
    Next BiLD: February 9th

    LHCbDIRAC

    • v11.0: deploy board in https://trello.com/b/Ep0PAkbv/deploy-110
      • new dashboards added in Kibana, but issues for few of them
        • Federico I did not properly check any of them yet
    • New DMS dashboards in https://monit-grafana.cern.ch/d/Q78h6E-nz/home?orgId=46
      • Federico are these double checked? “safe” enough to be advertised?
    • https://lhcb-auth.web.cern.ch/
      • from previous meeting Andrei this is not properly configured yet. Not usable for Pilot submission yet (compute scopes not added).
    • from previous meeting Move from Jira to GitLab for issues
      • Anyone would be against to move to using GitLab issues instead?
      • For the existing ones: review, close if you can, or keep it to be moved for later.
      • Jira history: not sure if it will be possible to keep it.
     
    There are minutes attached to this event. Show them.
      • 10:00 → 10:10
        Items from Previous BiLD-Dev 10m
      • 10:10 → 10:20
        DIRAC Communities roundtable 10m
      • 10:20 → 10:30
        DIRAC releases 10m
      • 10:30 → 10:55
        DIRAC projects 25m
        • DIRAC
        • WebApp
        • Pilot
        • DIRACOS
        • DIRACOS2
        • VMDIRAC
        • Documentation
        • OAuth2
        • tornado/HTTPs
        • other externals (include Rucio)
        DIRAC certification
      • 10:55 → 11:00
        Release planning, tests and certification 5m
        DIRAC PRs
        google forum
      • 11:00 → 11:15
        Weekly development(s) focus 15m
      • 11:15 → 11:25
        AOB
        Convener: Federico Stagni (CERN)
      • 11:25 → 11:40
        LHCbDIRAC 15m