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2/R-014 (CERN)

2/R-014

CERN

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Federico Stagni (CERN)
Description

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

Zoom: BiLD
https://cern.zoom.us/j/62504856418?pwd=TU1kb01SOFFpSDBJeWVBdU9qemVXQT09

Meeting ID: 62504856418
Passcode: 12345678
 

working notes
BiLD
Zoom Meeting ID
62504856418
Host
Federico Stagni
Useful links
Join via phone
Zoom URL
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BiLD (Bi-weekly DIRAC Development meeting) – 22/06/2023

At CERN: Federico, Alexandre, Andrè, Christophe, Christopher, Simon M
On Zoom: Andrei, Cedric, Daniela, Igor, Michel, Simon F, Ueda, Hideki, Janusz, Xiaomei, Vladimir
Apologies:

Follow-up from previous meetings

  • Last “standard” BiLD 4 weeks ago
    • Trying to catch all updates below
  • The BiLD of previous week was dedicated to DiracX, minutes added
    • Next Thursday: BiLDx meeting
    • In 2 weeks: DiracX hackathon
  • Last hackathon long time ago

DIRAC communities roundtable

LHCb:

Federico+Alexandre+Simon+Christophe+Christopher+Alexey

  • Installed (almost) latest DIRAC production release (v8.0.21)
  • Got a request from DESY on moving to HTCondor 10 (only tokens)
    • Alexandre being finalized, instructions on how to make this happen will be provided
      • SAM/ETF tests had to be updated
      • Issuer ID to be agreed, so ticket-ed all the HTCondor CEs
        • Andrei add to VO card
      • PRs needed
  • Moved to use Singularity (Apptainer) “inner” CE everywhere

EGI

Andrei

  • No updates on the production side
  • Testing HTCondor and ARC with CheckIn tokens (multi-VO tokens), sites need to be configured. Not yet working with ARC.
    • will be the same problem with Multi-VO IAM

CLIC/ILC/Calice

André

  • NTR

Belle2

Hideki, Michel, Ueda

  • Updating to py3
    • ActivityMonitor stopped working
  • Andrei what about removal of support for GSI?
    • not yet fully decided

GridPP:

Daniela, Simon, Janusz

  • Upgraded preprod server to v8.0.21
  • Expecting to upgrade main server within the next month. Current target date is July 5th. Users have been warned.
  • A note on Operations: We finally found the root of our intermittent File Catalog overloads. A user had issued a malformed RMS request in January, and DIRAC didn’t give up even after 540000000+ (half a billion in case you don’t want to the zeros) requests.
    My poor server: http://www.hep.ph.ic.ac.uk/~dbauer/tmp/dirac01.png
    In the end we had to hack the production database and set all the individual file requests to Failed by hand as just cancelling the request didn’t do anything:
    update File set Status = ‘Failed’ where LFN like ‘/t2k.org/%’ and Status = ‘Waiting’;
    proved the solution to our troubles. Simon expects this to be re-implemented in ‘awesome’ (or possibly even in ‘configurable to not try eternally’) in diracX. Daniela is unimpressed. This seems to happen a lot to her lately.
    • Christophe I am interested in the logs, because normally all the protections that you are asking are already in place. “Cancel” is the nuclear option and never seen it failing
    • Andrè Is it using FTS? I have seen some issues sometimes there
    • Daniela Yes it is.

Juno

Xiaomei

  • v8.0.21 on pre-production server.
  • Later will try using tokens for CEs. Juno is using dedicated IAM instance.

JINR

Igor

Topics from GitHub/Discussions

only un-answered topics with discussion updates:

DIRAC releases

  • v7r3
    • No patches created recently, but should be done
  • v8r0
  • v8r1
    • NTR

DIRAC projects

DIRAC:

Issues by milestone:

v7r3:

  • Only one issue left, about documentation. Christophe do you still want to take care?
    • will close.

v8.0:

v8.1:

  • 20+ open issues
    • Some of these might be closed/moved
    •  

Other issues:

PRs discussed:

WebApp:

  •  

Pilot:

DIRACOS2:

Documentation:

  • NTR
  • Message from RTD for config file…?
    • This was for the empty and obsolete "pilot" documentation project. This was deleted now

OAuth2:

from previous meeting Andrei request from EGI to demonstrate that one VO can run with tokens only

  • On that way. JobAgent should also be instrumented with that. User with only token can’t do that.

from previous meeting Check In is progressing: compute scopes available, they are accepting the idea of using client access tokens (possibility to associate a client to a given VO). They would probably not accept a same client to deal both with client and user access tokens (security concerns with the scopes available in the clients).

from previous meeting

tornado/HTTPs

management

  • from previous meeting 3 issues left, still valid

diraccfg

  • version 1.0? still tbd

COMDIRAC

Daniela

DB12

Alexandre

  • NTR

Rucio

  • NTR

Tests

  • NTR

Release planning, tests and certification

Certification machines

  • lbcertifdirac70 machine:
    • NTR
  • Federico not rush, but should we move to a Alma9 box?
    • Outside of CERN would be better, in CC probably
      • Andrei machine is already there, need to decide how to set this one up
    • We could also use the new box to test the installation procedure

Next hackathon(s)

  • in 2 weeks, “standard” v8.1.0aX one.

AOB

Next hackathon: in 2 weeks (just after the DiracX hackathon – either there or much later)
Next BiLD: July 27th

DIRAC+Rucio WS https://indico.cern.ch/event/1252369/

LHCbDIRAC

  • v11.0: deploy board in https://trello.com/b/Ep0PAkbv/deploy-110
    • Singularity CE everywhere
  • Chris B “CTA apparently has something similar to the lbmcsubmit stuff so it might make sense to move some of my gitlab <-> dirac production system stuff to vanilla dirac.”
    • Federico I talked with them yesterday, they will put on GitHub what they have
  • LHCbDIRAC hackathon?
    • no rush
  • https://lhcb-auth.web.cern.ch/
    • Used it in prod
 
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
    • 11:00 → 11:15
      Weekly development(s) focus 15m
    • 11:15 → 11:25
      AOB
      Convener: Federico Stagni (CERN)
    • 11:25 → 11:40
      LHCbDIRAC 15m
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