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🐛 Retry Node delete when CCT is locked #9570

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killianmuldoon
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Retry Node deletion when the ClusterCacheTracker is currently locked. This will force this process to be retried instead of ignoring the error.

Currently ignoring this error means that the Node can stick around indefinitely in the API Server. This seems to be the root cause of an issue where the self-hosted cluster tests fail. I'm still collecting information on this to understand if it's common across all the failure cases.

Related to #9522

@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Oct 18, 2023
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/test

@k8s-ci-robot k8s-ci-robot added the do-not-merge/needs-area PR is missing an area label label Oct 18, 2023
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@killianmuldoon: The /test command needs one or more targets.
The following commands are available to trigger required jobs:

  • /test pull-cluster-api-build-main
  • /test pull-cluster-api-e2e-full-dualstack-and-ipv6-main
  • /test pull-cluster-api-e2e-full-main
  • /test pull-cluster-api-e2e-main
  • /test pull-cluster-api-e2e-mink8s-main
  • /test pull-cluster-api-e2e-workload-upgrade-1-28-latest-main
  • /test pull-cluster-api-test-main
  • /test pull-cluster-api-test-mink8s-main
  • /test pull-cluster-api-verify-main

The following commands are available to trigger optional jobs:

  • /test pull-cluster-api-apidiff-main
  • /test pull-cluster-api-e2e-scale-main-experimental

Use /test all to run the following jobs that were automatically triggered:

  • pull-cluster-api-apidiff-main
  • pull-cluster-api-build-main
  • pull-cluster-api-e2e-main
  • pull-cluster-api-test-main
  • pull-cluster-api-verify-main

In response to this:

/test

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@k8s-ci-robot k8s-ci-robot added the size/S Denotes a PR that changes 10-29 lines, ignoring generated files. label Oct 18, 2023
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/area e2e-testing
/test pull-cluster-api-e2e-full-main

@k8s-ci-robot k8s-ci-robot added area/e2e-testing Issues or PRs related to e2e testing and removed do-not-merge/needs-area PR is missing an area label labels Oct 18, 2023
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/test pull-cluster-api-e2e-full-main

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@killianmuldoon
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/test pull-cluster-api-e2e-full-main

@killianmuldoon
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Looks like it hit one of the other flakes :facepalm

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/test pull-cluster-api-e2e-full-main

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Nice finding

/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Oct 19, 2023
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LGTM label has been added.

Git tree hash: 75d37212322a800107b91c725d0cdf0dd6382c98

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Nice catch & fix.

I think something still doesn't add up though. The drainNode case should also happen on release-1.5 and the deleteNode case on release-1.5 & release-1.4.

Anyway, makes sense to merge this fix. Please take a closer look at how far we want to backport which part of it.

/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sbueringer

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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 Oct 19, 2023
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The drainNode case should also happen on release-1.5 and the deleteNode case on release-1.5 & release-1.4.

Agreed. This is being tracked in #9522. I think there's some underlying change in the way upgrades are working - maybe related to MachinePools - which is bringing out these underlying errors. I still don't have a good theory as to what it though.

This PR should solve 1 of the three underlying causes, but it doesn't address why these issues have just started popping up now.

@k8s-ci-robot k8s-ci-robot merged commit 834a3e2 into kubernetes-sigs:main Oct 19, 2023
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@k8s-ci-robot k8s-ci-robot added this to the v1.6 milestone Oct 19, 2023
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Sounds good. WDYT about backporting this to release-1.5 & release-1.4?

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Sounds good. WDYT about backporting this to release-1.5 & release-1.4?

Will try to use the bot and come back to it tomorrow if there's an issue.

/cherry-pick release-1.5

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/cherry-pick release-1.4

@k8s-infra-cherrypick-robot

@killianmuldoon: new pull request created: #9582

In response to this:

Sounds good. WDYT about backporting this to release-1.5 & release-1.4?

Will try to use the bot and come back to it tomorrow if there's an issue.

/cherry-pick release-1.5

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@killianmuldoon: new pull request created: #9583

In response to this:

/cherry-pick release-1.4

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@killianmuldoon killianmuldoon added sig/api-machinery Categorizes an issue or PR as relevant to SIG API Machinery. and removed area/e2e-testing Issues or PRs related to e2e testing labels Oct 19, 2023
@k8s-ci-robot k8s-ci-robot added the do-not-merge/needs-area PR is missing an area label label Oct 19, 2023
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This PR is currently missing an area label, which is used to identify the modified component when generating release notes.

Area labels can be added by org members by writing /area ${COMPONENT} in a comment

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5 participants