Node Topology Manager

[lmdaly]

Enhancement Description

• One-line enhancement description (can be used as a release note): Kubelet component to coordinate fine-grained hardware resource assignments for different components in Kubernetes.
• Primary contact (assignee): @klueska
• Responsible SIGs: sig-node
• Design proposal link (community repo): Add Topology Manager proposal. community#1680
• KEP PR: Topology Manager KEP (Moving to new repo) #781
• KEP: https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/693-topology-manager
• Link to e2e and/or unit tests: N/A Yet
• Reviewer(s) - (for LGTM) recommend having 2+ reviewers (at least one from code-area OWNERS file) agreed to review. Reviewers from multiple companies preferred: @ConnorDoyle @balajismaniam
• Approver (likely from SIG/area to which enhancement belongs): @derekwaynecarr @ConnorDoyle
• Enhancement target (which target equals to which milestone):
  • Alpha release target (x.y): v1.16
  • Beta release target (x.y): v1.18
  • Stable release target (x.y): v1.27
• Alpha
  • KEP (k/enhancements) update PR(s):
    • Topology Manager KEP (Moving to new repo) #781
  • Code (k/k) update PR(s):
    • 1.15 Add Topology Manager Interfaces kubernetes#72885
    • Add Topology Manager Implementations based on Interfaces kubernetes#73580
    • Updates to container manager and internal container lifecycle to accommodate TopologyManager kubernetes#74357
    • Topology Manager Policy: single-numa-node kubernetes#82099
    • Renaming strict policy to restricted policy kubernetes#81787
  • Docs (k/website) update(s):
    • Added documentation to support Topology Manager feature in Kubelet. website#15716
• Beta
  • Code (k/k) update PR(s):
    • Update TopologyManager Feature Gate kubernetes#87650
    • 1.17 Fixed bug in TopologyManager with SingleNUMANode Policy kubernetes#83777
    • Enable running cpu-mgr-multiNUMA e2e tests with Topology manager kubernetes#88566
  • Docs (k/website) update(s):
    • 1.17 Topology management doc updates website#17451
• Stable
  • KEP (k/enhancements) update PR(s):
    • KEP-693: Graduate Kubelet Topology Manager to GA #3745
  • Code (k/k) update PR(s):
    • node: topologymgr: add metrics about admission requests and errors kubernetes#115137
    • node: topology-mgr: Add metric to measure topology manager admission latency kubernetes#115590
    • node: topologymgr: Graduate Kubelet Topology Manager to GA  kubernetes#116093
  • Docs (k/website) update(s):

[lmdaly]

/sig node
/kind feature
cc @ConnorDoyle @balajismaniam @nolancon

[vishh]

I can help inform this design based on learning from Borg. So count me in as a reviewer/approver.

[jeremyeder]

I can help inform this design based on learning from Borg. So count me in as a reviewer/approver.

Is there any public documentation on how this feature works in borg?

[vishh]

Not about NUMA AFAIK.

…

On Mon, Feb 11, 2019, 7:50 AM Jeremy Eder ***@***.*** wrote: I can help inform this design based on learning from Borg. So count me in as a reviewer/approver. Is there any public documentation on how this feature works in borg? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#693 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AGvIKPfanjb9Q5DxXAiBgv9C6Y809JX0ks5vMZFZgaJpZM4aE3uz> .

[spiffxp]

FYI @claurence

This tracking issue and KEP (#781) did not make it in time for the v1.14 enhancements freeze nor the extended deadline. I appreciate that you opened these before the deadlines, but they didn't seem to get sufficient review or sign off. This will need to go through the exception process.

Until we decide whether this is worth the exception, I'm inclined to put a hold on all PR's associated with this enhancement.

ref: kubernetes/kubernetes#72828