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Memory QoS Beta Update and Production Readiness #4093

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merged 1 commit into from
Jun 15, 2023

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ndixita
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@ndixita ndixita commented Jun 15, 2023

/assign @bobbypage
/assign @johnbelamaric
/assign @mrunalp
/assign @pacoxu

@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Jun 15, 2023
@k8s-ci-robot k8s-ci-robot added kind/kep Categorizes KEP tracking issues and PRs modifying the KEP directory sig/node Categorizes an issue or PR as relevant to SIG Node. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Jun 15, 2023
@ndixita ndixita force-pushed the memory-qos-beta branch 2 times, most recently from 35e2887 to f90865e Compare June 15, 2023 07:07
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ndixita commented Jun 15, 2023

/retest

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bobbypage commented Jun 15, 2023

/lgtm

Thank you for the updates!

/assign @mrunalp

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jun 15, 2023
@k8s-ci-robot k8s-ci-robot removed the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jun 15, 2023
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/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jun 15, 2023
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Biggest thing I see is we need the metric for beta.

keps/prod-readiness/sig-node/2570.yaml Show resolved Hide resolved
keps/sig-node/2570-memory-qos/README.md Show resolved Hide resolved
@@ -538,7 +546,7 @@ Pick one of these and delete the rest.
Any change of default behavior may be surprising to users or break existing
automations, so be extremely careful here.
-->
Yes, the kubelet will set `memory.min` for Guaranteed and Burstable pod/container level cgroup. It also will set `memory.high` for burstable container, which may cause memory allocation throttle. `memory.min` for qos or node level cgroup will be set when `--cgroups-per-qos` or `--enforce-node-allocatable` is satisfied.
Yes, the kubelet will set `memory.min` for Guaranteed and Burstable pod/container level cgroup. It also will set `memory.high` for burstable and best effort containers, which may cause memory allocation throttle. `memory.min` for qos or node level cgroup will be set when `--cgroups-per-qos` or `--enforce-node-allocatable` is satisfied.
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How will this throttling impact the workloads? (you can answer here or below).

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Updated.

keps/sig-node/2570-memory-qos/README.md Show resolved Hide resolved
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keps/sig-node/2570-memory-qos/README.md Show resolved Hide resolved
@k8s-ci-robot k8s-ci-robot removed the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jun 15, 2023
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/lgtm

lgtm on the recent updates, and adding new metric in beta as suggested in #4093 (comment)

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jun 15, 2023
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Ok, PRR seems fine but it does need SIG approval still

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ndixita commented Jun 15, 2023

/assign @SergeyKanzhelev

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/lgtm
/approve

@johnbelamaric this lgtm, I'll find official approver shortly

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/lgtm
/approve from SIG Node perspective.

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/approve
/lgtm

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dchen1107, johnbelamaric, mrunalp, ndixita, SergeyKanzhelev

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Jun 15, 2023
@k8s-ci-robot k8s-ci-robot merged commit 7eb9674 into kubernetes:master Jun 15, 2023
@k8s-ci-robot k8s-ci-robot added this to the v1.28 milestone Jun 15, 2023
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8 participants