community/sig-node/archive/meeting-notes-2025.md

SIG Node Meeting Notes

Jan 14, 2025

• Tim Allclair

Jan 7, 2025

• Tim Allclair

  • See In Place Pod Resize - Handling Memory Limit Decreases

    • sergey

      • should we disable resize on cgroupv1 to avoid diff behavior?
        • Mrunal: true, but we like the v1 behavior better
      • How VPA can use the feature safely? This is another example of VPA cannot guarantee non-disruptive pod resize (best effort)
        • Tim to follow up with VPA folks
      • All checks suggested still have possibility for the race condition, the user experience will be super annoying. Should we reconsider the application of memory.high?
  • Mrunal: Ask Waiman (Red Hat memory subsystem maintainer) if switching to v1 behavior is possible
    • Peter: we probably need to do this to fully avoid TOCTOU / OOM kills
  • Tim: Pause container to avoid TOCTOU?

• Tim Allclair

  • See proposal section of[PUBLIC] Design proposal: Pod ResizeStatus Improvements

• Zeel Patel

  • Create a KEP PR: https://github.com/kubernetes/enhancements/pull/5022

  • fromani

• HirazawaUi

  • Due to the time zone difference, I regret that I am unable to attend the meeting. I have compiled the entire process of how @hshiina and I attempted to address this issue, as well as my proposal, into a detailed document: https://docs.google.com/document/d/1TPrY56q9MNW8r1FuzKDFkBBhOjQ0hqi7wJAbIP1O-4g. I sincerely hope this can be discussed during the meeting.

• SergeyKanzhelev

  • State containderd and cri-o explicitly

• kannon92

• marquiz

  https://github.com/kubernetes/enhancements/pull/4113
• 1.33 time is coming! https://github.com/kubernetes/sig-release/pull/2706/