WMS decommissioning, Task Force

Mandate and goals

The goal of the task force is to coordinate the decommissioning of the WMS service in WLCG. For this, we will:

• identify the existing dependencies from the WMS, in the LHC experiments, in the WLCG services and in smaller VOs that rely on the WLCG services
• understand how and when these dependencies can be removed
• agree an appropriate timescale for the shutdown of the WMS instances, primarily for CERN, but also for any other site wishing to stop providing a WMS service for WLCG.

Slides at F2F WLCG coordination meeting, 11.02.2014: https://indico.cern.ch/event/272784/contribution/13/material/slides/1.pdf

Task tracking

Task	Deadline	Progress	Affected VOs	Affected Sites	Comments
decommission SAM WMSs	End of August	waiting on validation of the CondorG probes for SAM	ALICE, ATLAS, CMS, LHCb	all production sites

Contact

All members of the task force can also be contacted at wlcg-ops-coord-tf-wms@cernSPAMNOTNOSPAMPLEASE.ch

Background

There are 3 type of users of the CERN WMS:

• CRAB
• SAM
• individual gLite users (list of users and VOs to be extracted)

We need to understand for each group (and probably sub-group of gLite users per VO) what are the alternatives, and set up a migration plan. The WMS service keeps the logs for 90 days. Users from before that can still be identified, but with fewer details.

Timelines

• CMS
  • A phaseout plan needs to be agreed with CMS, starting by getting the CERN WMS out of the official CRAB configurations, to facilitate identifying the remaining users. Would it be feasible to have an answer from CMS on this by the next meeting, on Nov 21st?

• SAM
  • Alternative job submission methods are being worked on by the SAM team:
    • Condor-G service.
    • Allowing WN probes to be included with direct submission to CREAM CEs.
    • Direct submission to ARC CEs may be needed as well.
  • The goal is to phase out the use of the WMS nodes by early spring 2014.
• Other VOs
  • To be followed up.

Logs

From Alex, CERN WMS service manager:

Here's the list of users and job count for the last month for WMS nodes (not counting SAM). We see that the vast majority of submitted jobs comes from <20 big users (but CMS stats still include CRAB users). Users mbarroso and wlapka can be ignored, they're only submitting jobs monitoring the WMS servers themselves (Nagios probes for SLS). 

CMS subcluster:

  42994  DN=/C=IT/O=INFN/OU=Personal Certificate/L=Bari/CN=Giacinto Donvito
  29864  DN=/C=DE/O=GermanGrid/OU=DESY/CN=Armin Burgmeier
  25078  DN=/C=DE/O=GermanGrid/OU=KIT/CN=Corinna Guenth
  24920  DN=/C=DE/O=GermanGrid/OU=KIT/CN=Dominik Haitz
  24700  DN=/O=GermanGrid/OU=RWTH/CN=Manuel Giffels
  23453  DN=/C=DE/O=GermanGrid/OU=uni-hamburg/CN=Daniel Gonzalez
  17134  DN=/C=DE/O=GermanGrid/OU=KIT/CN=Wajid Ali Khan
  16565  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=yuhow/CN=683549/CN=You-Hao Chang
  15089  DN=/C=DE/O=GermanGrid/OU=KIT/CN=Fabio Colombo
  14282  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Paul Papacz
  13973  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Soeren Erdweg
  13962  DN=/C=IT/O=INFN/OU=Personal Certificate/L=Trento/CN=Konstantin Kanishchev
   9222  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Klaas Padeken
   7987  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=mbarroso/CN=559205/CN=Maite Barroso Lopez
   7298  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=wlapka/CN=623537/CN=Wojciech Lapka
   6298  DN=/C=CN/O=HEP/O=IHEP/OU=CC/CN=Jiawei Fan
   5930  DN=/C=DE/O=GermanGrid/OU=KIT/CN=Stefan Wayand
   5919  DN=/C=DE/O=GermanGrid/OU=KIT/CN=Steffen Roecker
   5645  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Philipp Millet
   4919  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Tobias Pook
   3865  DN=/C=DE/O=GermanGrid/OU=uni-hamburg/CN=Kristin Heine
   2298  DN=/C=DE/O=GermanGrid/OU=DESY/CN=Luigi Calligaris
   1788  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Simon Knutzen
   1734  DN=/C=DE/O=GermanGrid/OU=KIT/CN=Fred-Markus Stober
    599  DN=/O=GRID-FR/C=FR/O=CNRS/OU=IPNL/CN=Julien Chasserat
    315  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=ceballos/CN=488892/CN=Guillelmo Gomez Ceballos Retuerto
    219  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=bbilin/CN=705521/CN=Bugra Bilin
    162  DN=/C=DE/O=GermanGrid/OU=KIT/CN=Philipp Mogg
    159  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=moralesm/CN=725145/CN=Jorge Daniel Morales Mendoza
    156  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Andreas Gueth
    151  DN=/DC=com/DC=DigiCert-Grid/O=Open Science Grid/OU=People/CN=Majid Arabgol 1040
    145  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=hatake/CN=661802/CN=Kenichi Hatakeyama
    134  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Sebastian Thueer
    126  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Lars Sonnenschein
    111  DN=/C=TW/O=AP/OU=GRID/CN=Saranya Ghosh 130626
    102  DN=/DC=org/DC=doegrids/OU=People/CN=Kittikul Kovitanggoon 684960
     97  DN=/C=RU/O=RDIG/OU=users/OU=sinp.msu.ru/CN=Ksenia Shchelina
     89  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=fruboes/CN=657069/CN=Tomasz Maciej Frueboes
     87  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=hdyoo/CN=679810/CN=Hwi Dong Yoo
     79  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=mazarkin/CN=693548/CN=Maksim Azarkin
     73  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=charaf/CN=661114/CN=Otman Charaf
     73  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=archie/CN=672739/CN=Archie Sharma
     55  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=scasasso/CN=720565/CN=Stefano Casasso
     52  DN=/O=GRID-FR/C=FR/O=CNRS/OU=IPNL/CN=Sebastien Brochet
     49  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=rybinska/CN=700200/CN=Katarzyna Romanowska-Rybinska
     48  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=ctao/CN=727958/CN=Chiao-Yu Tao
     46  DN=/C=AT/O=AustrianGrid/OU=OEAW/OU=oeaw-vienna/CN=Ursula Laa
     44  DN=/C=DE/O=GermanGrid/OU=uni-hamburg/CN=Annika Vanhoefer
     43  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=kazana/CN=494996/CN=Malgorzata Kazana
     42  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=jtsai/CN=731460/CN=Jui-Fa Tsai
     39  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=rodenm/CN=695708/CN=Marissa Lynn Rodenburg
     36  DN=/O=GRID-FR/C=FR/O=CNRS/OU=IPNL/CN=Patrice Verdier
     28  DN=/C=BE/O=BEGRID/OU=Dept Fysica EDF/OU=UA/CN=Alex Van Spilbeeck
     26  DN=/C=UK/O=eScience/OU=CLRC/L=RAL/CN=sam harper
     25  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=mzakaria/CN=683452/CN=Mohammed Zakaria
     22  DN=/C=CN/O=HEP/O=IHEP/OU=PHYS/CN=Ye Chen
     21  DN=/O=GermanGrid/OU=DESY/CN=Christoph Wissing
     21  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Matthias Komm
     20  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=lmastrol/CN=733863/CN=Luca Mastrolorenzo
     19  DN=/C=BE/O=BEGRID/OU=ELEM/OU=VUB/CN=Python Quentin
     17  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=wulsin/CN=729510/CN=Howard Wells Wulsin
     17  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=pozzo/CN=680448/CN=Nicola Pozzobon
     17  DN=/C=IT/O=INFN/OU=Personal Certificate/L=Padova/CN=Mia Tosi
     17  DN=/C=IT/O=INFN/OU=Personal Certificate/L=Fisica Milano Bicocca/CN=Badder Marzocchi
     16  DN=/DC=IN/DC=GARUDAINDIA/O=C-DAC/OU=CTSF/CN=Ruchi Chudasama (ruchi.physics@gmail.com)
     16  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=yilmaz/CN=670788/CN=Yetkin Yilmaz
     16  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=mnguyen/CN=694436/CN=Matthew Andre Nguyen
     16  DN=/C=DE/O=GermanGrid/OU=DESY/CN=Ihar Marfin
     15  DN=/O=GRID-FR/C=FR/O=CEA/OU=IRFU/CN=Philippe Gras
     14  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=wouf/CN=704629/CN=Andrey Belyaev
     14  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=vaikunth/CN=701055/CN=Vaikunth Thukral
     14  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=demattia/CN=639735/CN=Marco De Mattia
     12  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=schoef/CN=616361/CN=Robert Schoefbeck
     12  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=mnguyen/CN=694436/CN=Matthew Nguyen
     12  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=biliu/CN=741875/CN=Bingxuan Liu
     12  DN=/C=HU/O=NIIF CA/OU=GRID/OU=Wigner FK/CN=Hazi Andras
     11  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=tkhurshi/CN=669087/CN=Taimoor Khurshid
     11  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=safronov/CN=621423/CN=Grigory Safronov
     11  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=lacroix/CN=612504/CN=Florent Sylvain Lacroix
     11  DN=/C=IT/O=INFN/OU=Personal Certificate/L=Padova/CN=Alberto Zucchetta
     10  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=zhenhu/CN=673885/CN=Zhen Hu
     10  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=paus/CN=420998/CN=Christoph Paus
     10  DN=/C=IT/O=INFN/OU=Personal Certificate/L=Firenze/CN=Giacomo Sguazzoni
     10  DN=/C=HU/O=NIIF CA/OU=GRID/OU=Wigner FK/CN=Hajdu Csaba
     10  DN=/C=DE/O=GermanGrid/OU=uni-hamburg/CN=Lukas Vanelderen
      9  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=namin/CN=746430/CN=Nick J Amin
      9  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=ibucinsk/CN=720597/CN=Inga Bucinskaite
      9  DN=/C=IT/O=INFN/OU=Personal Certificate/L=Fisica Milano Bicocca/CN=Leonardo Di Matteo
      8  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=walten/CN=605768/CN=Wolfgang Waltenberger
      8  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=sseyedi/CN=718535/CN=Hossein Seyedi
      8  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=mooney/CN=671715/CN=Michael Ryan Mooney
      8  DN=/C=IT/O=INFN/OU=Personal Certificate/L=Fisica Milano Bicocca/CN=Arabella Martelli
      7  DN=/O=GRID-FR/C=FR/O=CNRS/OU=IPNL/CN=Louis Sgandurra
      7  DN=/DC=es/DC=irisgrid/O=ciemat/CN=Eduardo-Navarro
      6  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=ytakahas/CN=659637/CN=Yuta Takahashi
      6  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=stepobr/CN=419057/CN=Stepan Obraztsov
      6  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=antonaki/CN=617336/CN=Ariadni Antonaki
      6  DN=/C=DE/O=GermanGrid/OU=DESY/CN=Roberval Walsh
      5  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=misiura/CN=681443/CN=Maciej Misiura
      5  DN=/C=RU/O=RDIG/OU=users/OU=jinr.ru/CN=Yuri Ivanov
      4  DN=/O=GRID-FR/C=FR/O=CNRS/OU=LLR/CN=Stanislav Lisniak
      4  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=litmaath/CN=410032/CN=Maarten Litmaath
      4  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=abuccill/CN=750441/CN=Andrew Buccilli
      4  DN=/C=DE/O=GermanGrid/OU=RWTH/CN=Otto Hindrichs
      3  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=youngjo/CN=667486/CN=Young-Kwon Jo
      3  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=mbouravi/CN=741221/CN=Maria Boura - Vistalina
      3  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=imranmet/CN=668604/CN=Imran Awan
      3  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=fblekman/CN=524499/CN=Freya Blekman
      3  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=andreevv/CN=673557/CN=Vladimir Andreev
      3  DN=/C=UK/O=eScience/OU=CLRC/L=RAL/CN=emmanuel olaiya
      3  DN=/C=RU/O=RDIG/OU=users/OU=sinp.msu.ru/CN=Lev Kheyn
      3  DN=/C=GR/O=HellasGrid/OU=uoi.gr/CN=Ioannis Papadopoulos
      3  DN=/C=GR/O=HellasGrid/OU=uoi.gr/CN=Giannis Flouris
      3  DN=/C=DE/O=GermanGrid/OU=uni-hamburg/CN=Daniele Marconi
      3  DN=/C=AT/O=AustrianGrid/OU=OEAW/OU=oeaw-vienna/CN=Dietrich Liko
      2  DN=/DC=org/DC=doegrids/OU=People/CN=Manoj Kumar Jha 945408
      2  DN=/DC=es/DC=irisgrid/O=ifca/CN=pablo-orviz
      2  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=selgamma/CN=664444/CN=Sherif Elgammal
      2  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=farrell3/CN=679129/CN=Christopher Farrell
      2  DN=/C=UK/O=eScience/OU=Brunel/L=CC/CN=mark turner
      2  DN=/C=DE/O=GermanGrid/OU=uni-hamburg/CN=Dominik Nowatschin
      1  DN=/O=GRID-FR/C=FR/O=CNRS/OU=LLR/CN=Michal Bluj
      1  DN=/O=GRID-FR/C=FR/O=CNRS/OU=IPNL/CN=Jose David Ruiz Alvarez
      1  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=twang/CN=722165/CN=Ta-Wei Wang
      1  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=tropiano/CN=676905/CN=Antonio Tropiano
      1  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=samir/CN=695732/CN=Samir Cury Siqueira
      1  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=pjandir/CN=727748/CN=Pawandeep S Jandir
      1  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=meshra/CN=743181/CN=Moustafa Eshra
      1  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=hbrun/CN=644816/CN=Hugues Louis Brun
      1  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=alebihan/CN=645361/CN=Anne-Catherine Le Bihan
      1  DN=/C=HU/O=NIIF CA/OU=GRID/OU=MTA ATOMKI/CN=Debreczeni Attila
      1  DN=/C=DE/O=GermanGrid/OU=uni-hamburg/CN=Jochen Ott


Shared subcluster (ie. All other VOs):

  60494  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=fstagni/CN=693025/CN=Federico Stagni
  22340  DN=/O=GRID-FR/C=FR/O=CNRS/OU=CC-IN2P3/CN=Nadia Lajili
  19909  DN=/C=MA/O=MaGrid/OU=OUJDA/CN=Yahya Tayalati
  17154  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=romanov/CN=427293/CN=Vladimir Romanovskiy
   3839  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=cgrefe/CN=673318/CN=Christian Grefe
   2589  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=glestari/CN=739099/CN=Georgios Lestaris
   2422  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=alucacit/CN=705142/CN=Angela Isabela Lucaci Timoce
   2404  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=mbarroso/CN=559205/CN=Maite Barroso Lopez
   2194  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=wlapka/CN=623537/CN=Wojciech Lapka
    770  DN=/O=GRID-FR/C=FR/O=CNRS/OU=IPNL/CN=Antonio Uras
    759  DN=/C=IT/O=INFN/OU=Personal Certificate/L=Roma 1/CN=Alessandro De Salvo
    336  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=nalipour/CN=734627/CN=Niloufar Alipour Tehrani
    246  DN=/DC=es/DC=irisgrid/O=ecm-ub/CN=Ricardo-Graciani-Diaz
     71  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=esicking/CN=677029/CN=Eva Sicking
     61  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=sredford/CN=669060/CN=Sophie Redford
     57  DN=/C=UK/O=eScience/OU=Imperial/L=Physics/CN=daniela bauer
     57  DN=/C=AR/O=e-Ciencia/OU=UNLP/L=CeSPI/CN=Hernan Pablo Wahlberg
     48  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=jstrube/CN=678050/CN=Jan Fridolf Strube
     39  DN=/DC=es/DC=irisgrid/O=ific/CN=Ignacio.Garcia
     25  DN=/C=UK/O=eScience/OU=Manchester/L=HEP/CN=andrew mcnab
     24  DN=/C=UK/O=eScience/OU=Birmingham/L=ParticlePhysics/CN=mark slater
     18  DN=/C=AR/O=e-Ciencia/OU=UNLP/L=CeSPI/CN=Maria Josefina Alconada Verzini
     15  DN=/C=UK/O=eScience/OU=Warwick/L=UOW/CN=matthew williams
     11  DN=/DC=com/DC=DigiCert-Grid/O=Open Science Grid/OU=People/CN=Sagar Setru 1856
     10  DN=/C=JP/O=KEK/OU=CRC/CN=Akiya Miyamoto
      7  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=zxing/CN=700163/CN=Zhou Xing
      7  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=sstevens/CN=742852/CN=Scott Stevenson
      7  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=jhe/CN=671793/CN=Jibo He
      7  DN=/C=SK/O=SlovakGrid/O=IEPSAS/CN=Pavol Strizenec
      5  DN=/C=IT/O=INFN/OU=Personal Certificate/L=LNF/CN=Flavio Archilli
      4  DN=/C=DE/O=GermanGrid/OU=MPPMU/CN=Veronika Chobanova
      3  DN=/C=IT/O=INFN/OU=Personal Certificate/L=Firenze/CN=Michele Veltri
      2  DN=/O=GRID-FR/C=FR/O=CNRS/OU=LAPP/CN=Jean-Jacques Blaising
      2  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=wdesilva/CN=672344/CN=Weeraddana De Silva
      2  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=philten/CN=663107/CN=Philip James Ilten
      2  DN=/C=RU/O=RDIG/OU=users/OU=jinr.ru/CN=Yuri Ivanov
      1  DN=/DC=es/DC=irisgrid/O=ifca/CN=pablo-orviz
      1  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=decianm/CN=669361/CN=Michel De Cian
      1  DN=/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=bstoraci/CN=643958/CN=Barbara Storaci
      1  DN=/C=AR/O=e-Ciencia/OU=UNLP/L=CeSPI/CN=FernandoMonticelli

Jobs per VO on the shared subcluster. The most active VOs are lhcb, geant4, ops and to a lesser extend ilc. I'm surprised we have so many jobs from ops:

  63242  FQAN=/lhcb/Role=pilot/Capability=NULL
  22498  FQAN=/geant4/Role=NULL/Capability=NULL
  18988  FQAN=/ops/Role=lcgadmin/Capability=NULL
  14717  FQAN=/lhcb/Role=production/Capability=NULL
   7952  FQAN=/ops/Role=pilot/Capability=NULL
   3839  FQAN=/ilc/Role=production/Capability=NULL
   3004  FQAN=/ilc/Role=NULL/Capability=NULL
    770  FQAN=/alice/Role=NULL/Capability=NULL
    759  FQAN=/atlas/Role=lcgadmin/Capability=NULL
    106  FQAN=/atlas/Role=NULL/Capability=NULL
     60  FQAN=/dteam/Role=NULL/Capability=NULL
     57  FQAN=/lhcb/Role=user/Capability=NULL

Procedure to get these numbers: https://twiki.cern.ch/twiki/bin/view/GridServices/WmsOperationsAndTroubleshooting#Identify_users_still_using_a_giv