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Skip pod hostname when comparing PodSpecs #4742

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merged 1 commit into from
Mar 16, 2022
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@x13n x13n commented Mar 16, 2022

Hostname doesn't affect scheduling and different hostnames prevent
caching of similar pods in CA.

Which component this PR applies to?

cluster-autoscaler

What type of PR is this?

/kind bug

What this PR does / why we need it:

This improves CA performance when handling IndexedJobs (see #4724).

Which issue(s) this PR fixes:

Fixes #4724

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:


Hostname doesn't affect scheduling and different hostnames prevent
caching of similar pods in CA.
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towca commented Mar 16, 2022

/lgtm
/approve

@k8s-ci-robot k8s-ci-robot added kind/bug Categorizes issue or PR as related to a bug. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Mar 16, 2022
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: towca, x13n

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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 Mar 16, 2022
@k8s-ci-robot k8s-ci-robot requested a review from feiskyer March 16, 2022 15:01
@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Mar 16, 2022
@k8s-ci-robot k8s-ci-robot merged commit 054c52a into kubernetes:master Mar 16, 2022
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approved Indicates a PR has been approved by an approver from all required OWNERS files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. kind/bug Categorizes issue or PR as related to a bug. lgtm "Looks good to me", indicates that a PR is ready to be merged. size/M Denotes a PR that changes 30-99 lines, ignoring generated files.
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Successfully merging this pull request may close these issues.

Pod spec equivalency checks can break Cluster Autoscaler scalability
3 participants