Meeting Date

• TEAMS: 2024-10-30

Invited

Anthony (group leader), Lori, Clayton, Guoxiang, Nathan, Nick, Todd, Ed, Devon, Gwen, Ushe

Attendees:

NL, EC, NF, AB, DM, GS, TL, CT

Review and accept previous meeting minutes.

CsLWGMeeting20241002

Review last meeting's Action Items

linux.cscf.uwaterloo.ca

• Still blocked on comprehensive review of authentication/authorization configuration, work stalled - need to schedule in person meetings
  • Scrapping Ubuntu 22.04, will jump directly to Ubuntu 24.04

DFSc Performance

• Snapshots disabled again due to problems documented in RT: 1321957
  • Considering automated detection and remediation of this particular problem
• Should also email users who will have their homedirs deleted - Nick
  • RT: 1318097
• Quotas set for most accounts, list of quota violators provided for Nick, see RT: 1317978

Account Management

UID/GID re-use

• Currently causes problems with old homedirs winding up owned by new users, see RT: 1304698 and RT: 1319439
• Could fix, or we could just stop re-using UIDs/GIDs... Do we have any systems that don't support 32 bit UIDs/GIDs?
  • Reached out to Robyn Landers
    • Clayton has potentially fixed the problem of re-using UIDs/GIDs
    • Need to hammer out details what it looks like to not reuse UIDs/GIDs

Networking

• OSPF Ring Sunset
  • No longer a thing. Has been disconnected.
  • Finished move from OSPF to FCR network.
  • Had outage on Friday Oct 25, at around 8:30am. A week before, IST cut redundant fiber. IST started restoring it on Oct 25 8:30am, but in the wrong order.
• DFSc Migration
  • Will create tickets for individual clients as children of RT: 1321648
    • Many clients still need their local configuration adjusted
    • Currently unsafe to `reboot` LXC instances without doing a full `lxc-stop ... ; lxc-start ...`, see https://rt.uwaterloo.ca/Ticket/Display.html?id=1322353#txn-34439871
  • Most clients had little to no downtime.
  • There are still clients that need their config updated (ex. /etc/fstab referring to old addresses).
• Server room old HP networks will slowly stopped being used. Use FCR instead now.

New Business

MC-1061

• Infrastructure Group has managed to get access

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