WLCG MW Readiness WG 9th meeting Minutes - March 18th 2015



  • Local: David Cameron (ATLAS), Lionel Cons (Monitoring expert, developer), Maria Dimou (chair & notes), Maarten Litmaath (ALICE & notes), Andrea Manzi (MW Officer), Manuel Guijarro (T0), Stefan Roiser (LHCb).
  • Remote: Cristina Aiftimiei (INFN), Vincent Brillault (CERN Computer Security Group, Pakiti expert), Alessandra Doria (Napoli), Raul Lopes (Brunel Univ.), Vincenzo Spinoso (EGI Ops Mgr).
  • Apologies: Catherine Biscarat (IN2P3), Jeremy Coles (GridPP), Rob Quick (OSG).
  • WG Membership changes: Cristina Aiftimiei is replaced by Vincenzo Spinoso as EGI Ops Mgr. Our thanks and wishes to Cristina for her future projects!

Minutes of previous meeting

The minutes of the last (8th) meeting HERE were approved.


  • HT-Condor testing starts for ATLAS via the condor-g component. Thanks to David Cameron for configuring the pilot factory and to Andrea Manzi for starting the tests.
  • Wahid left Edinburgh to pursue a career in California. Edinburgh was a very active Volunteer Site. We hope to have a new contact a.s.a.p.
  • Good work is being done in Napoli for ATLAS CREAM CE. Thanks to Alessandra Doria for promptly installing the new versions for testing.
  • The new ARC CE version 5 is expected next week. Thanks to Raul for picking it up for the CMS testing in Brunel.
  • The latest voms client v.3.0.6 is used by ATLAS and promised for verification by LHCb.
  • The Pakiti v3 client can report to the EGI CSIRT Pakiti server as well as the MW Readiness Pakiti server.
    • It contains puppet configuration instructions in the Installation manual.
    • The client will always report all rpms (not just MW) to the Pakiti server
    • The complete rpm lists will only be accessible for security purposes
    • The MW Readiness activities only "see" the subsets of rpms belonging to MW products
  • The CERN_T0 Volunteer Site to please install the Pakiti v3 client currently for the FTS and EOS services. We did decide, indeed, not to test FTS for Readiness, as it runs at 2-3 WLCG sites only and the risk of exposing multiple production sites to bugs doesn't exist. Still it is good to have more pakiti client installations for data collection, while designing the most functional results' visualisation.
  • We need PIC to start the dCache verification activity for CMS. Maybe also xrootd v.4?

MW Officer report

Andrea M. presented the status of MW products' Readiness verification status. The presentation contained advance information on the MW Readiness App (provisional name) which will "marry" rpms running at a site (reported by the Pakiti client) with package versions available in the repositories. The rpm versions will not be publically displayed on the App, hence no security considerations are due. Some info on a new WG web site (under development) that will show a dynamic view of MW products' Readiness status. Please see his slides here. The standard format of these status presentations are:
  • Experiment workflow
    • MW Product, including version numbers currently under evaluation.
    • Volunteer Site(s) where this is being done.
    • Status of the pakiti client installation at the site.

WLCG Package Reporter

Lionel is working closely with the Pakiti developers. Since last week, the EGI CSIRT Pakiti server can receive reports coming from the Pakiti v3 client (that we use for the MW Readiness). Regarding visualization, development is still ongoing (nothing to present yet).

Sites' feedback


Action items Done from past meetings can be found HERE.

  • 20150318-05: Pepe to proceed with the MW Readiness set-up at PIC NEW!
  • 20150318-04: Raul to proceed with the ARC-CE testing at Brunel, as soon as it is released next week NEW!
  • 20150318-03: Alessandra to coordinate with Andrea M. the CREAM-CE testing. NEW!
  • 20150318-02: Ben to set-up the ARGUS testbed at the T0 NEW!
  • 20150318-01: Manuel to communicate to EOS and FTS managers the reminder of the Pakiti client installation instructions here. NEW!
  • 20150121-07: Andrea M. and Maria D. to regularly remind sites to install the MW Package Reporter at the various WLCG Ops Coord meetings. DONE
  • 20150121-06: David C. to look for some sites validating new ARC-CE versions. DONE, Brunel is in
  • 20150121-05: David C. to send more pilot jobs to Napoli in the framework of indirect HT-Condor testing. DONE
  • 20150121-04: David C. to check which voms-client is used by ATLAS. DONE. version is the latest, i.e. 3.0.6.
  • 20150121-03: Andreas, remind Pepe about the PIC commitment to test dCache for CMS. DONE
  • 20150121-02: Andrea M. and Jeremy C. to remind all Volunteer Sites recorded and more, if possible from the UK to install the latest Package Reporter Instructions HERE. DONE
  • 20150121-01: Andrea M. to contact Triumf, ATLAS volunteer site for dCache, announce the decision to skip v.2.6.x verification and open JIRA ticket to monitor. DONE
  • 20141119-04: Andrea M. to discuss with Legnaro their current installation of the MW Package Reporter. but maybe update https://its.cern.ch/jira/browse/MWREADY-14 given that now everyone has to re-install? DONE Legnaro runs the pakiti client.
  • 20141119-03: Andrea M. to contact the GRIF site to proceed with WN testing via the CMS workflow POSTPONED
  • 10141119-02: ATLAS, CMS, LHCb to contact Andrea M. if interested in the Data Management Client (DMC) libs available on grid.cern.ch CVMFS area. Take to the WLCG Ops Coord meeting
  • 20140702-06: Andrea M. & Lionel Discuss the visualization of testing results. On-going

AOB & Next meeting

  • Wednesday May 6th at 4pm CET is the date of the next meeting. Reason: Easter and CHEP in April. GDB the week after followed by the EGI Conference.

-- MariaDimou - 2015-03-17

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