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OSG Technology Area Meeting, 20 April 2020

Coordinates: Conference: +1 312-626-6799, PIN: 718 161 330, https://cern.zoom.us/j/718161330 (password sent separately)
Attending: BrianL, Derek, Diego, Edgar, Marco Mambelli, Marian, Mat, TimT

Announcements

Carl OOO today

Triage Duty

  • This week: BrianL
  • Next week: Edgar
  • 6 (-5) open FreshDesk tickets
  • 1 (-1) open GGUS ticket

JIRA

# of tickets Δ State
152 -5 Open
50 +4 In Progress
3 +0 Ready for Testing
0 +0 Ready for Release

OSG Software Team

  • OSG Release tickets
    • AI (Edgar): Release XRootD 4.12.0 (SOFTWARE-4063)
    • AI (Edgar): Release CCTools 7.1.0+ (SOFTWARE-4031)
    • AI (Diego): Troubleshoot VMU test failures with XRootD 5 (SOFTWARE-3923)
  • AI (Mat): troubleshoot issue with EL8 builds due to dependencies being satisfied by modules instead of by repositories
  • AI (BrianL): Begin work on persisting jobs across Open Science CE instances

Discussion

None this week

Support Update

  • AGLT2, BNL, MWT2 (BrianL): negotiator bug in the latest HTCondor 8.8 versions that prevent some jobs from matching when using hierarchical accounting group quotas. HTCondor team working on verifying a fix.
  • AMNH (Derek, Edgar): now running their squid at Manhattan Internet2 node. New CE being added as well.
  • Brown (Marian): had Webex troubleshooting session last week and will have a follow-up this week. Has some XRootD + NFS configuration that we may want to add to our own documentation.
  • Cybera (Diego): having some issues setting up COVID-19 routes and will discuss with BrianL offline
  • GlideinWMS (Marco, Edgar): a few proxy different proxy issues (missing pathlen, cannot generate VO proxies for a sub-vo, and proxy lifetime not getting passed along properly) that are expected to make it into the next 3.6 and 3.7 releases
  • Purdue (Diego): was able to produce an issue similar to transfers getting stuck by setting and removing network bandwidth restrictions. Will discuss short timeouts with gfal2 client developers.
  • Rutgers (Derek, BrianL): Issues with Accounting groups, prioritization of COVID research.

OSG Release Team

3.4.50 Δ Both Δ 3.5.16 Δ Total Δ Status
0 +0 0 +0 9 -3 9 -3 Open
1 +0 0 +0 14 +4 15 +4 In Progress
0 +0 0 +0 2 +1 2 +1 Ready for Testing
0 +0 0 +0 0 +0 0 +0 Ready for Release
1 +0 0 +0 25 +2 26 +2 Total
  • Software
    • Ready for Testing
      • 3.5.16
        • GlideinWMS 3.7
        • osg-ce 3.5-5
  • Data
    • Nothing
  • Operations
    • Nothing
  • Contrib
    • Nothing

Discussion

None this week

OSG Investigations Team

  • GRACC transition now monitored with gracc-transition website: https://gracc-transition.herokuapp.com/: 100% (within rounding error)
  • Significant GRACC reports refactor.
  • SciTokens + XCache - no progress last week. Goal for this week.
  • Folding@Home ran at scale on the OSG.
  • Need to figure out the singularity container pruning.
  • XRootD monitoring collector validation is starting. Effort from Diego and Derek.
    • Validation presentation this week to CMS / FNAL.

Discussion

None this week