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OSG Technology Area Meeting, 22 April 2019

Coordinates: Conference: 719-284-5267, PIN: 57363;
Attending: BrianL, Carl, Derek, Edgar, Marian, TimT


BrianL out next week 4/29 - 5/1

Triage Duty

  • This week: Edgar
  • Next week: Mat
  • 9 (+1) open FreshDesk tickets
  • 1 (+0) open GGUS ticket


# of tickets Δ State
164 -7 Open
26 -3 In Progress
12 -5 Ready for Testing
7 +7 Ready for Release

OSG Software Team


  • AI (Carl): will request GLOW certificate
  • AI (Edgar): will look into XRootD TPC tests failing, BrianL will create a ticket
  • AI (BrianL): Review the status of doc tickets labeled for 3.4.28
  • AI (BrianL): Add Diego to the software mailing list and JIRA

Support Update

  • CMS (Marian): XRootD SAM tests are segfaulting for some sites. Still investigating xrootd-python and xrootd-client.
  • LIGO (Edgar): are interested in opportunistic GPU usage. They're configured to use PRP GPUs and we're working on getting them access to QB2E and CalTech GPUs.
  • NET2 (Carl, Derek): They had an issue similar to Florida but they have all of their accounting records from SGE. This means that we can run a probe locally, "faking" any local configuration, and send records off to the GRACC.
  • SWT2 (BrianL): the blahp does not refresh proxies after 24h on WNs and this has bitten ATLAS. Investigating potential fixes.
  • UFL (Carl, Derek): Records have been sent to APEL and now the WLCG needs to regenerate the reports. Out of OSG hands now.

OSG Release Team

3.4.28 Δ Status
0 +0 Open
3 +0 In Progress
12 -5 Ready for Testing
7 +7 Ready for Release
0 +0 Closed
22 +2 Total
  • OSG 3.4.28 - This Week
    • Ready for Testing
      • XRootD 4.9.1
      • StashCache/XCache (13 tickets)
      • MyProxy using GCT
      • GlideinWMS 3.4.5
    • Ready for Release
      • osg-flock 1.1: flock host DN
      • Upcoming: HTCondor 8.8.2
  • Data
    • Nothing
  • Operations
    • Nothing
  • Contrib
    • Nothing


  • AI (Marian, John T): Should be able to test XCache by noon Wed
  • AI (Edgar): Help Diego test GlideinWMS 3.4.5
  • AI (TimT): Request a mailing list for community testing, populate it with Topology admin contacts, and write an introductory email

OSG Investigations Team

  • XRootD workshop will be held in France in 6-8 weeks
  • Some resources in topology don't have an APEL normalization factor set in topology, causing issues with APEL numbers.
    We have opened tickets with the relevant site admins.
  • Accounting audit is beginning in collaboration with ATLAS.


  • I would like the investigations team to make a thrust helping Ops with monitoring. Lots of issues with things that are failing. And who is watching the watchers (GRACC alert email wasn't being sent... watch the watchers)?
  • Lots of GRACC questions:
  • What would it take to run HTCondor-CE gratia probe on a slurm cluster? Will start investigating with Nebraska, next week.



None this week