OSG Technology Area Meeting, 5 October 2020

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

Announcements

CC spin-up meeting for the 2020 CC recipients later this month -- requests for materials will be high-priority.

Triage Duty

• This week: BrianL
• Next week: Carl
• 9 (+2) open FreshDesk tickets
• 0 (-3) open GGUS ticket

JIRA

# of tickets	Δ	State
173	+7	Open
15	+0	Selected for Dev
14	-1	In Progress
6	+2	Dev Complete
17	+0	Ready for Testing
6	+0	Ready for Release

OSG Software Team

• Doc focus Oct 22 13:30 - 17:30 CDT
• Tech team priorities this week: https://opensciencegrid.atlassian.net/secure/RapidBoard.jspa?rapidView=19&quickFilter=66
• AI (Edgar): merge https://opensciencegrid.atlassian.net/browse/SOFTWARE-4203
• Does XRootD 4.12.5 fix issues found with XRootD 4.12.4?
  • No; the error seems to affect TPC in the entire 4.12.X series. For some reason, nightly VMU tests (which test TPC) have not detected the issue. AI (Edgar/Diego): Investigate why VMU tests do not catch this issue.
  • AI (Edgar/Diego): Report problem to XRootD developers as a GitHub issue.

Discussion

• Diego: PR for Python 3 support for SciTokens was merged.
• AI (Diego): Rebuild XRootD plugins for XRootD 5 (except XRootD-HDFS).
• AI (Edgar): Build osg-xrootd and x509-scitokens-issuer for EL8, since they are no longer blocked by osg-configure. (This is lower priority than XRootD issues mentioned above.)
• AI (BrianL): Coordinate improvement of cache federation registration process.

• AI (Mat): Investigate stale URLs in technology docs.

• TimT:

  • Encountering build failures for HTCondor on EL8 -- these appear to be random (i.e. rebuilds succeed).
  • HTCondor-CE tests with HTCondor 8.9.9 are brittle and randomly fail to run. BrianL will investigate.

GlideinWMS

• Will release 3.6.5, which includes a fix for a bind-mount issue encountered by Marco Mascheroni.

Support Update

• Univeristy of Connecticut (BrianL): investigating Blahp segfault with Flightworthy
• JLab (Derek): Origin host is crashing. Not necessarily the OSG provided container.
• Edgar: Continuing to debug issues with XRootD 5 in the CNAF StashCache -- maybe caused by authfile generation. Also testing HTCondor 8.9.9 tarballs in the LIGO ITB.

OSG Release Team

3.4.55	Δ	Both	Δ	3.5.25	Δ	Total	Δ	Status
0	+0	1	+1	10	+0	11	+1	Open
0	+0	0	+0	4	+1	4	+1	Selected for Development
0	+0	0	+0	1	+0	1	+0	In Progress
0	+0	0	+0	0	+0	0	+0	Development Complete
0	+0	0	-1	4	+0	4	-1	Ready for Testing
1	+0	0	+0	1	+1	2	+1	Ready for Release
1	+0	1	+0	20	+2	22	+2	Total

• Software
  • Ready for Testing
    • 3.5.25
      • EL8: lcmaps 1.6.6
      • EL8: osg-configure 3.10
      • EL8: xrootd-multiuser 0.4.4
  • Ready for Release
    • 3.5.25
      • blahp 1.18.48
    • 3.4.55
      • Singularity 3.6.3
• Data
  • Nothing
• Operations
  • Nothing
• Contrib
  • Nothing

Discussion

None this week

OSG Investigations Team

• StashCP Go presentation planned for next week.
• Redirectors with TLS turned on test is planned for today. Lets see what breaks!

Discussion

None this week