• FNAL has been having issues.
    • Some failures, some low CPU efficiency jobs.
  • Vanderbilt had an extended downtime.
  • MIT has fallen out of the ITB redirector. Not sure why they haven't been able to keep up?
    • Needs to report DNs; uses grid-mapfile.
  • UFL upgraded to Xrootd 3.1
    • 3.0.x servers still left?
  • Nebraska has been fine, modulo yesterday's downtime
  • UW still needs to enable GUMS integration.
  • Higher error rates: seems to be due to glidein misconfiguration?
    • Some low efficiency today, needs to be investigated.
  • Disk fill-up on ML repo. Lost 3 days of data.
    • Need to tune to reduce the data volume - larger hard disk has bought us some time.
    • Maybe new nagios test is needed for ML functionality?


  • Need to deploy version of Xrootd where grid map file reports DN.
  • xrootd 3.1 was released to osg.
  • Monitoring:
    • Added reporting of file size of file close.
    • Time out user sessions.
    • Working on build system.
    • Will transfer the accounting probe to UCSD
    • Still need to get redirection reporting.
    • Error reporting? It's only post-3.1. Also waiting for upgrade.
    • Need to do UDP packet forwarder.
    • Over xmas, plan on doing some realtime viz.
  • Caching proxy: Matevz needs to clear off plate a bit for this.
  • CVMFS/Parrot: Dan is starting to think about this.
    • Converted the T2 to CVMFS for OSG_APP; got much experience with CVMFS.
    • Think we'll use the FUSE entry points, but not re-implement the protocol. Dan is still trying to get a good feeling based on code.
  • MT and BB discussed the possibility of adding the job runtime data to the opaque info that the redirector gets would be much easier to correlate data access and batch jobs.


  • Last meeting for the year!
  • Still need to go through worklist from kickoff meeting.
  • Ruth (OSG) asked if AAA kept a blog. We don't yet, but this was the second question about an improved web presence.
    • Something to think about. Maybe delay until next year?
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Topic revision: r1 - 2012-02-07 - BrianBockelman
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