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Skip if pod does not have claims.

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This commit is contained in:
Yecheng Fu 2019-01-16 14:20:40 +08:00
parent 7fe97886a8
commit c2d25e08d7
1 changed files with 30 additions and 16 deletions
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46
pkg/controller/volume/persistentvolume/scheduler_binder.go
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@ -142,10 +142,40 @@ func (b *volumeBinder) GetBindingsCache() PodBindingCache {
return b.podBindingCache
}
func podHasClaims(pod *v1.Pod) bool {
for _, vol := range pod.Spec.Volumes {
if vol.PersistentVolumeClaim != nil {
return true
}
}
return false
}
// FindPodVolumes caches the matching PVs and PVCs to provision per node in podBindingCache.
// This method intentionally takes in a *v1.Node object instead of using volumebinder.nodeInformer.
// That's necessary because some operations will need to pass in to the predicate fake node objects.
func (b *volumeBinder) FindPodVolumes(pod *v1.Pod, node *v1.Node) (unboundVolumesSatisfied, boundVolumesSatisfied bool, err error) {
podName := getPodName(pod)
// Warning: Below log needs high verbosity as it can be printed several times (#60933).
klog.V(5).Infof("FindPodVolumes for pod %q, node %q", podName, node.Name)
// Initialize to true for pods that don't have volumes
unboundVolumesSatisfied = true
boundVolumesSatisfied = true
start := time.Now()
defer func() {
VolumeSchedulingStageLatency.WithLabelValues("predicate").Observe(time.Since(start).Seconds())
if err != nil {
VolumeSchedulingStageFailed.WithLabelValues("predicate").Inc()
}
}()
if !podHasClaims(pod) {
// Fast path
return unboundVolumesSatisfied, boundVolumesSatisfied, nil
}
var (
matchedClaims []*bindingInfo
provisionedClaims []*v1.PersistentVolumeClaim
@ -164,22 +194,6 @@ func (b *volumeBinder) FindPodVolumes(pod *v1.Pod, node *v1.Node) (unboundVolume
b.podBindingCache.UpdateBindings(pod, node.Name, matchedClaims, provisionedClaims)
}()
podName := getPodName(pod)
// Warning: Below log needs high verbosity as it can be printed several times (#60933).
klog.V(5).Infof("FindPodVolumes for pod %q, node %q", podName, node.Name)
// Initialize to true for pods that don't have volumes
unboundVolumesSatisfied = true
boundVolumesSatisfied = true
start := time.Now()
defer func() {
VolumeSchedulingStageLatency.WithLabelValues("predicate").Observe(time.Since(start).Seconds())
if err != nil {
VolumeSchedulingStageFailed.WithLabelValues("predicate").Inc()
}
}()
// The pod's volumes need to be processed in one call to avoid the race condition where
// volumes can get bound/provisioned in between calls.
boundClaims, claimsToBind, unboundClaimsImmediate, err := b.getPodVolumes(pod)