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Retry resource quota lookup until count stabilizes

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On contended servers the service account controller can slow down,
leading to the count changing during a run. Wait up to 5s for the count
to stabilize, assuming that updates come at a consistent rate, and are
not held indefinitely.
This commit is contained in:
Clayton Coleman 2017-01-22 22:30:35 -05:00
parent dd22743b54
commit 8a303b9908
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GPG Key ID: 3D16906B4F1C5CB3
1 changed files with 16 additions and 5 deletions
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21
test/e2e/resource_quota.go
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@ -93,16 +93,27 @@ var _ = framework.KubeDescribe("ResourceQuota", func() {
It("should create a ResourceQuota and capture the life of a secret.", func() {
By("Discovering how many secrets are in namespace by default")
secrets, err := f.ClientSet.Core().Secrets(f.Namespace.Name).List(metav1.ListOptions{})
Expect(err).NotTo(HaveOccurred())
defaultSecrets := fmt.Sprintf("%d", len(secrets.Items))
hardSecrets := fmt.Sprintf("%d", len(secrets.Items)+1)
found, unchanged := 0, 0
wait.Poll(1*time.Second, 30*time.Second, func() (bool, error) {
secrets, err := f.ClientSet.Core().Secrets(f.Namespace.Name).List(metav1.ListOptions{})
Expect(err).NotTo(HaveOccurred())
if len(secrets.Items) == found {
// loop until the number of secrets has stabilized for 5 seconds
unchanged++
return unchanged > 4, nil
}
unchanged = 0
found = len(secrets.Items)
return false, nil
})
defaultSecrets := fmt.Sprintf("%d", found)
hardSecrets := fmt.Sprintf("%d", found+1)
By("Creating a ResourceQuota")
quotaName := "test-quota"
resourceQuota := newTestResourceQuota(quotaName)
resourceQuota.Spec.Hard[v1.ResourceSecrets] = resource.MustParse(hardSecrets)
resourceQuota, err = createResourceQuota(f.ClientSet, f.Namespace.Name, resourceQuota)
resourceQuota, err := createResourceQuota(f.ClientSet, f.Namespace.Name, resourceQuota)
Expect(err).NotTo(HaveOccurred())
By("Ensuring resource quota status is calculated")