MarcoWR100531

Monday

Tuesday

• Xrootd troubleshooting
• OSG Production meeting
• Campfire
  • CE troubleshooting - at the end it was using a private certificate because the host cert was not owned by root

Wednesday

• Xrootd troubleshooting (Doug)
• GC1
  • gc-ext1 install and bck: dual homed host

Thursday

• some documents with Iwona
• gc1
  • gc-ext1 configuration completed - username should be merged, not overwritten!
  • xrootd tests
    • host vs host+
    • first name in /etc/hosts is used by xrootd config
• xrootd testing - ANL installation
  • https://atlaswww.hep.anl.gov/twiki/bin/view/UsAtlasTier3/XrootdConfigurationatlaslocalrootbase
  • https://twiki.grid.iu.edu/bin/view/Tier3/XrootdInstallAlt
  • configuration:

    headnode: aschead (or ascheadprv)
    ascheadprv: redirector
    workers/data servers: ascwrk0prv and ascwrk1prv and ascwrk2prv
    interactive: ascint0y or ascint1y
    xrootd root: /xroot/*
    gateway: atlas16.hep.anl.gov
    

  • done:

    source  /export/share/atlas/ATLASLocalRootBase/x86_64/xrootd/current/setup.sh
    ps auxwww | grep xr
    xrdcp /users/marco/testfile xroot://ascwrk2prv.hep.anl.gov:1093//xrootd/test-test3
    

  • commands to check name resolution:

    import socket as s
    s.gethostbyname_ex('www.mwt2.org')
    s.gethostname()
    s.getfqdn()
    s.gethostbyname_ex(s.getfqdn())
    s.gethostbyname_ex('uct2-grid6')
    

Friday

• xrootd - config changes proposal:
  • host log dir
  • "+" to match all host names
  • http://xrootd.slac.stanford.edu/doc/prod/Syntax_config.htm
• some campfire
• Dan Y, Elizabeth: follow up on hosts reporting to old Gratia collector
  • waiting approval for proposed message
  • send message and then open ticket to follow up
  • waiting Dan Y checks on suspect hosts
• some documents with Iwona
• xrootd testing - ANL installation
  • repeat tests - log on
  • found out NFS problem - see attachment: test100604-xrootd-debugging-ASC.txt: test100604-xrootd-debugging-ASC.txt
• OSG site admin workshop - planning with Dan and Rob S

TODO

• presentation for T3 meeting
• CE install and test