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Update implementation of low node utilization strategy.

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This commit is contained in:
Avesh Agarwal
2017-08-15 14:19:25 -04:00
parent 4b62cc9a86
commit a3714c0be4
1 changed files with 16 additions and 10 deletions
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26
pkg/rescheduler/strategies/lownodeutilization.go
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@@ -114,32 +114,38 @@ func LowNodeUtilization(client clientset.Interface, strategy api.ReschedulerStra
totalPods += ((float64(podsPercentage) * float64(nodeCapcity.Pods().Value())) / 100)
}
podsPerTargetNode := totalPods / float64(len(targetNodes))
if podsPerTargetNode > 0 {
for _, node := range targetNodes {
n := podsPerTargetNode
// evict best effort pods first
for _, node := range targetNodes {
nodePodsUsage := node.usage[v1.ResourcePods]
nodeCapcity := node.node.Status.Capacity
if len(node.node.Status.Allocatable) > 0 {
nodeCapcity = node.node.Status.Allocatable
}
onePodPercentage := api.Percentage((float64(1) * 100) / float64(nodeCapcity.Pods().Value()))
if nodePodsUsage > targetThresholds[v1.ResourcePods] && totalPods > 0 {
for _, pod := range node.bePods {
success, err := evictions.EvictPod(client, pod, evictionPolicyGroupVersion)
if !success {
fmt.Printf("Error when evicting pod: %#v (%#v)\n", pod.Name, err)
} else {
fmt.Printf("Evicted pod: %#v (%#v)\n", pod.Name, err)
n--
if n < 0 {
nodePodsUsage = nodePodsUsage - onePodPercentage
totalPods--
if nodePodsUsage <= targetThresholds[v1.ResourcePods] || totalPods <= 0 {
break
}
}
}
if n > 0 {
if nodePodsUsage > targetThresholds[v1.ResourcePods] && totalPods > 0 {
for _, pod := range node.otherPods {
success, err := evictions.EvictPod(client, pod, evictionPolicyGroupVersion)
if !success {
fmt.Printf("Error when evicting pod: %#v (%#v)\n", pod.Name, err)
} else {
fmt.Printf("Evicted pod: %#v (%#v)\n", pod.Name, err)
n--
if n < 0 {
nodePodsUsage = nodePodsUsage - onePodPercentage
totalPods--
if nodePodsUsage <= targetThresholds[v1.ResourcePods] || totalPods <= 0 {
break
}
}