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Book capacity only for ProvisioningRequest without scheduled pods#9806

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cvgenesis wants to merge 1 commit into
kubernetes:masterfrom
genesistherapeutics:cyr/fix-booking-with-consumed-capacity
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Book capacity only for ProvisioningRequest without scheduled pods#9806
cvgenesis wants to merge 1 commit into
kubernetes:masterfrom
genesistherapeutics:cyr/fix-booking-with-consumed-capacity

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@cvgenesis

@cvgenesis cvgenesis commented Jun 11, 2026

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What type of PR is this?

/kind bug

What this PR does / why we need it:

Expires booking once it founds that the all pods for the ProvisioningRequest are scheduled.

This solves a bug when bookCapacity reserves capacity for every pod of a Provisioned ProvisioningRequest, including pods already running in the cluster, for the full reservation window. This leads to duplicate capacity calculation so some other ProvisioningRequests remain with CapacityIsNotFound.

  • Sets BookingExpired for PRs with all pods already scheduled
  • Adds a new reason for BookingExpired - CapacityBookingConsumed
  • Adds a test for the bug

Which issue(s) this PR fixes:

Fixes #9805

Special notes for your reviewer:

I tried to make the minial change, so I used BookingExpired. But maybe it makes sense to add a new condition. Or vice versa, to skip consumed PRs silently without booking - in this case it will be just a fix for a duplicated resource count without any externally visible changes.

Does this PR introduce a user-facing change?

  • Adds a new reason for BookingExpired - CapacityBookingConsumed
Once all pods for the ProvisioningRequest are scheduled the ProvisioningRequest adds condition BookingExpired with the reason CapacityBookingConsumed

Expires booking once it founds that the all pods for the ProvisioningRequest are scheduled.

This solves a bug when bookCapacity reserves capacity for every pod of a Provisioned
ProvisioningRequest, including pods already running in the cluster, for the
full reservation window. This leads to duplicate capacity calculation so some other
ProvisioningRequests remain with CapacityIsNotFound.

* Sets BookingExpired for PRs with all pods already scheduled
* Adds a new reason for BookingExpired - CapacityBookingConsumed
* Adds a test for the bug

P.S. I tried to make the minial change, so I used BookingExpired. But maybe it makes sense to add a new condition.
@k8s-ci-robot k8s-ci-robot added release-note Denotes a PR that will be considered when it comes time to generate release notes. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. kind/bug Categorizes issue or PR as related to a bug. kind/cleanup Categorizes issue or PR as related to cleaning up code, process, or technical debt. kind/documentation Categorizes issue or PR as related to documentation. kind/feature Categorizes issue or PR as related to a new feature. needs-triage Indicates an issue or PR lacks a `triage/foo` label and requires one. labels Jun 11, 2026
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This issue is currently awaiting triage.

If SIG Autoscaling contributors determines this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

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[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: cvgenesis
Once this PR has been reviewed and has the lgtm label, please assign bigdarkclown for approval. For more information see the Code Review Process.

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Welcome @cvgenesis!

It looks like this is your first PR to kubernetes/autoscaler 🎉. Please refer to our pull request process documentation to help your PR have a smooth ride to approval.

You will be prompted by a bot to use commands during the review process. Do not be afraid to follow the prompts! It is okay to experiment. Here is the bot commands documentation.

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@k8s-ci-robot k8s-ci-robot added do-not-merge/needs-area Indicates that a PR should not merge because it lacks an area label. area/cluster-autoscaler Issues or PRs related to the Cluster Autoscaler component needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. labels Jun 11, 2026
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Hi @cvgenesis. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work.

Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

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Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

@k8s-ci-robot k8s-ci-robot added cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. and removed do-not-merge/needs-area Indicates that a PR should not merge because it lacks an area label. labels Jun 11, 2026
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area/cluster-autoscaler Issues or PRs related to the Cluster Autoscaler component cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. kind/bug Categorizes issue or PR as related to a bug. kind/cleanup Categorizes issue or PR as related to cleaning up code, process, or technical debt. kind/documentation Categorizes issue or PR as related to documentation. kind/feature Categorizes issue or PR as related to a new feature. needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. needs-triage Indicates an issue or PR lacks a `triage/foo` label and requires one. release-note Denotes a PR that will be considered when it comes time to generate release notes. size/M Denotes a PR that changes 30-99 lines, ignoring generated files.

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best-effort-atomic-scale-up ProvisioningRequest wrongly reports CapacityIsNotFound when capacity is really present

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