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Increase pods_evicted metric

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This commit is contained in:
Jan Chaloupka
2021-02-23 00:28:38 +01:00
parent 1c5b32763b
commit 24458fb0ca
1 changed files with 7 additions and 3 deletions
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10
pkg/descheduler/evictions/evictions.go
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@@ -31,6 +31,7 @@ import (
clientcorev1 "k8s.io/client-go/kubernetes/typed/core/v1"
"k8s.io/client-go/tools/record"
"k8s.io/klog/v2"
"sigs.k8s.io/descheduler/metrics"
podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
"sigs.k8s.io/descheduler/pkg/utils"
@@ -97,12 +98,13 @@ func (pe *PodEvictor) TotalEvicted() int {
// EvictPod returns non-nil error only when evicting a pod on a node is not
// possible (due to maxPodsToEvictPerNode constraint). Success is true when the pod
// is evicted on the server side.
func (pe *PodEvictor) EvictPod(ctx context.Context, pod *v1.Pod, node *v1.Node, reasons ...string) (bool, error) {
var reason string
func (pe *PodEvictor) EvictPod(ctx context.Context, pod *v1.Pod, node *v1.Node, strategy string, reasons ...string) (bool, error) {
reason := strategy
if len(reasons) > 0 {
reason = " (" + strings.Join(reasons, ", ") + ")"
reason += " (" + strings.Join(reasons, ", ") + ")"
}
if pe.maxPodsToEvictPerNode > 0 && pe.nodepodCount[node]+1 > pe.maxPodsToEvictPerNode {
metrics.PodsEvicted.With(map[string]string{"result": "maximum number reached", "strategy": strategy, "namespace": pod.Namespace}).Inc()
return false, fmt.Errorf("Maximum number %v of evicted pods per %q node reached", pe.maxPodsToEvictPerNode, node.Name)
}
@@ -110,6 +112,7 @@ func (pe *PodEvictor) EvictPod(ctx context.Context, pod *v1.Pod, node *v1.Node,
if err != nil {
// err is used only for logging purposes
klog.ErrorS(err, "Error evicting pod", "pod", klog.KObj(pod), "reason", reason)
metrics.PodsEvicted.With(map[string]string{"result": "error", "strategy": strategy, "namespace": pod.Namespace}).Inc()
return false, nil
}
@@ -123,6 +126,7 @@ func (pe *PodEvictor) EvictPod(ctx context.Context, pod *v1.Pod, node *v1.Node,
eventBroadcaster.StartRecordingToSink(&clientcorev1.EventSinkImpl{Interface: pe.client.CoreV1().Events(pod.Namespace)})
r := eventBroadcaster.NewRecorder(scheme.Scheme, v1.EventSource{Component: "sigs.k8s.io.descheduler"})
r.Event(pod, v1.EventTypeNormal, "Descheduled", fmt.Sprintf("pod evicted by sigs.k8s.io/descheduler%s", reason))
metrics.PodsEvicted.With(map[string]string{"result": "success", "strategy": strategy, "namespace": pod.Namespace}).Inc()
}
return true, nil
}