Linux Working Group

Meeting Date

• TEAMS: 2023-06-28

Invited

• Anthony (group leader), Clayton, Guoxiang, Lori, Fraser, Devon, Nathan, Nick, Todd, Dave, O, Ed

Attendees

• Anthony, Clayton, Fraser, Guoxiang, Devon, Nathan

Review and accept previous meeting minutes.

• CsLWGMeeting20230614

Review last meeting's Action Items

• Homedirectory quotas (a2brenna) - RTs: 1112506, 1288354 et al
  • 100 GB quotas in staged roll out, plan detailed in tickets above
    • Timeline?
  • Quota information from sponsorships could change rapidly
  • If sponsored quota is <= 100GB suggested base quota, should we just use the 100GB base quota? (Clayton to run some numbers after Anthony makes a ticket?)
  • Students in big data course get extra data (Fraser believes that it's <100GB)
  • Mostly waiting on odyssey database migration

• Snapshots are still disabled, when are they to be re-enabled? (a2brenna)
  • Snapshots appear to be enabled in the GENERAL environment, but not in TEACHING. I am now fielding complaints from students. (a2brenna)
    • Were disabled at Nick's request, will be re-enabled.
      • Have not been re-enabled
  • Snapshots still disabled as of June 28, Nick currently away.
  • Anthony to resurrect ticket

• Our mitigations are effective, but we should get on the new kernel as soon as convenient when its released
  • Kernel has been released
  • All teaching hosts 22.04 have already been rebooted with new kernel
  • Cloud hosts still need to be updated/rebooted (Anthony believes that waiting until end of term is reasonable given our current mitigation status)

New business

• Sunsetting *-202.cloud.cs.uwaterloo.ca (18.04 Infrastructure Cloud hosts) (a2brenna)
  • Containers need to be migrated
    • dc-3558-accounts-200.dev.cscf.uwaterloo.ca
    • dc-3558-jupyter-1804.student.cs.uwaterloo.ca
    • dc-dns-1.cs.uwaterloo.ca
    • dc-nfs-002.student.cs.uwaterloo.ca
    • dc-samba-002.student.cs.uwaterloo.ca
    • dc-samba-102.cs.uwaterloo.ca
    • icinga.cscf.uwaterloo.ca
    • dc-nfs-104.cs.uwaterloo.ca
    • m3-3101-jupyter-1804.student.cs.uwaterloo.ca
    • m3-samba-002.student.cs.uwaterloo.ca
    • m3-samba-102.cs.uwaterloo.ca
    • mail-106.cs.uwaterloo.ca
    • mx-106.cs.uwaterloo.ca
    • m3-nfs-104.cs.uwaterloo.ca
    • filemaker19.student.cs.uwaterloo.ca
    • mail-004.student.cs.uwaterloo.ca
    • mc-3015-jupyter-1804.student.cs.uwaterloo.ca
    • mc-dns-1.cs.uwaterloo.ca
    • mc-dns-2.cs.uwaterloo.ca
    • mc-nfs-002.student.cs.uwaterloo.ca
    • mc-samba-002.student.cs.uwaterloo.ca
    • mc-samba-012.student.cs.uwaterloo.ca
    • mc-samba-102.cs.uwaterloo.ca
    • mx-004.student.cs.uwaterloo.ca
    • mc-nfs-006.student.cs.uwaterloo.ca
  • Anthony still to provide documentation on migrating containers from 18.04 to 20.4 (and 20.04 to 22.04).
    • Possible path changes from 20.04 to 22.04.etc
      • Upgrading from 18.04 to 20.04
    • Upgrading from 20.04 to 22.04

• Sunsetting Ubuntu 18.04
  • Some difficulties involving salt when moving from Ubuntu 18.04 -> 20.04.
    • Upgrading from 18.04 to 20.04

• If someone has sponsored quota that is less than our suggested base quota, do they get both?
  • Clayton suggests adding up all sponsored quotes and giving them either that, or the minimum 100GB quota (whichever is bigger).

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