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OSG Technology Area Meeting, 10 August 2021


  • OSG User School in session until the end of the week

Triage Duty

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

Jira (as of Monday)

# of tickets Δ State
155 +2 Open
26 +0 Selected for Dev
39 +0 In Progress
6 -5 Dev Complete
8 +3 Ready for Testing
6 +1 Ready for Release

OSG Software Team

  • Kuberentes Hackathon today 1-5pm
  • Tim makeup doc focus: EL8 interest is increasing
  • Doc focus Aug 20
  • Release
    • AI (TimT): SciTokens update for EL8 (SOFTWARE-4126)
    • AI (Carl): Improve default ProbeConfig directory configuration (SOFTWARE-4621)
    • AI (BrianL): XRootD in OSG 3.6 (SOFTWARE-4494)
  • GSI Transition
    • AI (Carl): osg-token-renewer package
    • AI (Mat): Add API token authentication to Topology (SOFTWARE-4134)
    • AI (BrianL): Get XRootD tests running with proxies again (SOFTWARE-4604)
  • Other
    • AI (BrianL): Investigate persistent condor_ce_run failures in 3.6 nightlies
    • AI (Mat): Review comments on cvmfsexec doc changes
    • AI (BrianL): Add CI tests


  • GRACC upgrade is planned for the end of August

Support Update

  • Georgia Tech (BrianL, Mats): Need to verify that the config worked to prevent pilots from running in pilots
  • Lancium (BrianL, Mats): their GPUs are still going unused, it seems that RecentJobStarts is frequently at its limit of 400 starts/20 min
  • JLab (Marian): Fixed HTCondor configuration; JLab admins should be informed to expect some downtime and manual changes between OSG release series upgrades
  • Lamar (Marian): Jobs are running but requesting Software Team help to examine job classads for anything unexpected
  • BNL (Marian): Troubleshooting with John de Stefano and other BNL admins; getting unexpected behavior from Freshdesk with notes or replies not getting to everyone on the ticket. Marian will notify Freshdesk support about the strange behavior.
  • Hosted CEs (Carl): Investigate hosted-ce35 not reporting to GRACC.
  • University of Illinois (Mat): Undesired XRootD HTTP plugin behavior; Mat is following discussion between XRootD developers

OSG DevOps

New: - Request to inject entire HTCondor job classad into GRACC records. Will require gratia-probe-condor changes.

Ongoing: - Elasticsearch will need to be updated, scheduled for last week in August. - StashCP go client is working and tested, and being tested by Christina now. Need to talk to Mats on packaging and releasing. (will follow up). No news from Christina, - Design document is done and is being distributed for xrootd monitoring collector NG (next gen). Shoveler is working and lightly tested. Collector is 80% done. Design document is still not reviewed, but moving foward anyways. - Discussions of xrootd-multiuser support for checksumming on-the-fly. After a discussion, the checksum-on-the-fly funcationality will be ported to xrootd-multiuser. Copied largely from xrootd-hdfs. This does mean that out-of-order writes will not be supported.

Back burner: - (Stalled, but need to get back to it) XRootD accounting information (from Frank): - May need help with automating the process of generating these reports. A month only takes a few minutes. Longer periods take much longer. - Table of working set, read, and re-read for monthly, quarterly, and year. - XRootD TCP plugin is ready for packaging. Derek will follow up with software team on who to hand that off to. -


None this week

OSG Release Team

  • OSG 3.5.45 and OSG 3.6 (Thursday)
    • Ready for Release
      • gratia-probe 1.24.0 (OSG 3.5 and 3.6)
      • XRootD 5.3.1 (OSG 3.5-upcoming)


None this week