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🐛 Fix flakiness in MD controller test #7668

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merged 1 commit into from
Dec 12, 2022
Merged

🐛 Fix flakiness in MD controller test #7668

merged 1 commit into from
Dec 12, 2022

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killianmuldoon
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Signed-off-by: killianmuldoon [email protected]

Fix flakiness in MD controller test when verifying the deletion of old MachineSets.

@k8s-ci-robot k8s-ci-robot added the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Nov 30, 2022
@k8s-ci-robot k8s-ci-robot added size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. labels Nov 30, 2022
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/test ?

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/test pull-cluster-api-test-main

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/test pull-cluster-api-test-main

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/test pull-cluster-api-test-main

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/test pull-cluster-api-test-main

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/test pull-cluster-api-test-main

@killianmuldoon killianmuldoon changed the title [WIP] 🐛 Fix flakiness in MD controller test 🐛 Fix flakiness in MD controller test Dec 1, 2022
@k8s-ci-robot k8s-ci-robot removed the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Dec 1, 2022
killianmuldoon
killianmuldoon commented Dec 1, 2022
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internal/controllers/machinedeployment/machinedeployment_controller_test.go Outdated
@@ -394,7 +394,7 @@ func TestMachineDeploymentReconciler(t *testing.T) {
return false
}
return machineSets.Items[0].Status.Replicas == *deployment.Spec.Replicas
}, timeout*5).Should(BeTrue())
}, timeout*10).Should(BeTrue())
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I can't see an easy win here for this deletion - I think the best thing to do for now is to increase the timeout for the test from 150 seconds to 300 seconds and see if long tail reconciliation always happens within that window

@killianmuldoon killianmuldoon changed the title 🐛 Fix flakiness in MD controller test 🐛 [WIP] Fix flakiness in MD controller test Dec 1, 2022
@killianmuldoon killianmuldoon changed the title 🐛 [WIP] Fix flakiness in MD controller test 🐛 Fix flakiness in MD controller test Dec 7, 2022
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Taking another look at this I think we should merge as is and monitor to see if the test stays flaky. Seems to me there's a long tail on deletion in the test which is just hard to account for deterministically. If lengthening the max timeout doesn't work we can consider rewriting the test - possibly to make this check occur later in the order.

fabriziopandini
fabriziopandini reviewed Dec 12, 2022
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/lgtm
/approve
let's see if this improves the situation

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Dec 12, 2022
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini

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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 Dec 12, 2022
@k8s-ci-robot k8s-ci-robot merged commit d294bfb into kubernetes-sigs:main Dec 12, 2022
@k8s-ci-robot k8s-ci-robot added this to the v1.4 milestone Dec 12, 2022
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/cherry-pick release-1.2

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/cherry-pick release-1.3

Cherry picking this fix as we've seen the flake a number of times in supported branches.

@k8s-infra-cherrypick-robot k8s-infra-cherrypick-robot mentioned this pull request Dec 13, 2022
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@killianmuldoon: new pull request created: #7753

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/cherry-pick release-1.2

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@killianmuldoon: new pull request created: #7754

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/cherry-pick release-1.3

Cherry picking this fix as we've seen the flake a number of times in supported branches.

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@k8s-infra-cherrypick-robot k8s-infra-cherrypick-robot mentioned this pull request Dec 13, 2022
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