Merge pull request #71362 from aleksandra-malinowska/autoscaling-test-fix-26

Extend timeout before breaking node in autoscaling test
pull/58/head
k8s-ci-robot 2018-11-24 11:04:33 -08:00 committed by GitHub
commit 610f48f424
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 13 additions and 0 deletions

View File

@ -881,6 +881,19 @@ var _ = SIGDescribe("Cluster size autoscaling [Slow]", func() {
clusterSize = manuallyIncreaseClusterSize(f, originalSizes)
}
// If new nodes are disconnected too soon, they'll be considered not started
// instead of unready, and cluster won't be considered unhealthy.
//
// More precisely, Cluster Autoscaler compares last transition time of
// several readiness conditions to node create time. If it's within
// 2 minutes, it'll assume node is just starting and not unhealthy.
//
// Nodes become ready in less than 1 minute after being created,
// so waiting extra 2 minutes before breaking them (which triggers
// readiness condition transition) should be sufficient, while
// making no assumptions about minimal node startup time.
time.Sleep(2 * time.Minute)
By("Block network connectivity to some nodes to simulate unhealthy cluster")
nodesToBreakCount := int(math.Ceil(math.Max(float64(unhealthyClusterThreshold), 0.5*float64(clusterSize))))
nodes, err := f.ClientSet.CoreV1().Nodes().List(metav1.ListOptions{FieldSelector: fields.Set{