mirrors/node-feature-discovery
mirrors/node-feature-discovery
1
0
Fork 0
mirror of https://github.com/kubernetes-sigs/node-feature-discovery.git synced 2025-03-16 21:38:23 +00:00
Code Activity

nfd-gc: use paging when listing CRs

Browse source 
List NodeFeature and NodeResourceTopology objects in pages of 200 items.
This reduces memory consumption and eliminates timeouts (on the
apiserver side) in big clusters of thousands of nodes.
This commit is contained in:
Markus Lehtonen 2024-07-26 17:05:14 +03:00
parent 57f1b79856
commit 45164f580a
1 changed files with 36 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

61
pkg/nfd-gc/nfd-gc.go
View file

@ -26,6 +26,7 @@ import (
"k8s.io/apimachinery/pkg/api/errors" "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels" "k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/sets" "k8s.io/apimachinery/pkg/util/sets"
metadataclient "k8s.io/client-go/metadata" metadataclient "k8s.io/client-go/metadata"
"k8s.io/client-go/metadata/metadatainformer" "k8s.io/client-go/metadata/metadatainformer"
@ -152,37 +153,47 @@ func (n *nfdGarbageCollector) garbageCollect() {
nodeNames.Insert(meta.Name) nodeNames.Insert(meta.Name)
} }
// Handle NodeFeature objects listAndHandle := func(gvr schema.GroupVersionResource, handler func(metav1.PartialObjectMetadata)) {
objMetas, err := n.client.Resource(gvrNF).List(context.TODO(), metav1.ListOptions{}) opts := metav1.ListOptions{
if errors.IsNotFound(err) { Limit: 200,
klog.V(2).InfoS("NodeFeature CRD does not exist") }
} else if err != nil { for {
klog.ErrorS(err, "failed to list NodeFeature objects") rsp, err := n.client.Resource(gvr).List(context.TODO(), opts)
} else { if errors.IsNotFound(err) {
for _, nf := range objMetas.Items { klog.V(2).InfoS("resource does not exist", "resource", gvr)
nodeName, ok := nf.GetLabels()[nfdv1alpha1.NodeFeatureObjNodeNameLabel] break
if !ok { } else if err != nil {
klog.InfoS("node name label missing from NodeFeature object", "nodefeature", klog.KObj(&nf)) klog.ErrorS(err, "failed to list objects", "resource", gvr)
break
} }
if !nodeNames.Has(nodeName) { for _, item := range rsp.Items {
n.deleteNodeFeature(nf.Namespace, nf.Name) handler(item)
} }
if rsp.ListMeta.Continue == "" {
break
}
opts.Continue = rsp.ListMeta.Continue
} }
} }
// Handle NodeResourceTopology objects // Handle NodeFeature objects
objMetas, err = n.client.Resource(gvrNRT).List(context.TODO(), metav1.ListOptions{}) listAndHandle(gvrNF, func(meta metav1.PartialObjectMetadata) {
if errors.IsNotFound(err) { nodeName, ok := meta.GetLabels()[nfdv1alpha1.NodeFeatureObjNodeNameLabel]
klog.V(2).InfoS("NodeResourceTopology CRD does not exist") if !ok {
} else if err != nil { klog.InfoS("node name label missing from NodeFeature object", "nodefeature", klog.KObj(&meta))
klog.ErrorS(err, "failed to list NodeResourceTopology objects")
} else {
for _, nrt := range objMetas.Items {
if !nodeNames.Has(nrt.Name) {
n.deleteNRT(nrt.Name)
}
} }
} if !nodeNames.Has(nodeName) {
n.deleteNodeFeature(meta.Namespace, meta.Name)
}
})
// Handle NodeResourceTopology objects
listAndHandle(gvrNRT, func(meta metav1.PartialObjectMetadata) {
if !nodeNames.Has(meta.Name) {
n.deleteNRT(meta.Name)
}
})
} }
// periodicGC runs garbage collector at every gcPeriod to make sure we haven't missed any node // periodicGC runs garbage collector at every gcPeriod to make sure we haven't missed any node