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Add pvc as part of equivalence hash #56577
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@@ -0,0 +1,75 @@ | ||
/* | ||
Copyright 2017 The Kubernetes Authors. | ||
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Licensed under the Apache License, Version 2.0 (the "License"); | ||
you may not use this file except in compliance with the License. | ||
You may obtain a copy of the License at | ||
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http://www.apache.org/licenses/LICENSE-2.0 | ||
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Unless required by applicable law or agreed to in writing, software | ||
distributed under the License is distributed on an "AS IS" BASIS, | ||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
See the License for the specific language governing permissions and | ||
limitations under the License. | ||
*/ | ||
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package predicates | ||
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import ( | ||
"fmt" | ||
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"k8s.io/api/core/v1" | ||
storagev1 "k8s.io/api/storage/v1" | ||
) | ||
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type FakePersistentVolumeClaimInfo []v1.PersistentVolumeClaim | ||
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func (pvcs FakePersistentVolumeClaimInfo) GetPersistentVolumeClaimInfo(namespace string, pvcID string) (*v1.PersistentVolumeClaim, error) { | ||
for _, pvc := range pvcs { | ||
if pvc.Name == pvcID && pvc.Namespace == namespace { | ||
return &pvc, nil | ||
} | ||
} | ||
return nil, fmt.Errorf("Unable to find persistent volume claim: %s/%s", namespace, pvcID) | ||
} | ||
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type FakeNodeInfo v1.Node | ||
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func (n FakeNodeInfo) GetNodeInfo(nodeName string) (*v1.Node, error) { | ||
node := v1.Node(n) | ||
return &node, nil | ||
} | ||
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type FakeNodeListInfo []v1.Node | ||
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func (nodes FakeNodeListInfo) GetNodeInfo(nodeName string) (*v1.Node, error) { | ||
for _, node := range nodes { | ||
if node.Name == nodeName { | ||
return &node, nil | ||
} | ||
} | ||
return nil, fmt.Errorf("Unable to find node: %s", nodeName) | ||
} | ||
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type FakePersistentVolumeInfo []v1.PersistentVolume | ||
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func (pvs FakePersistentVolumeInfo) GetPersistentVolumeInfo(pvID string) (*v1.PersistentVolume, error) { | ||
for _, pv := range pvs { | ||
if pv.Name == pvID { | ||
return &pv, nil | ||
} | ||
} | ||
return nil, fmt.Errorf("Unable to find persistent volume: %s", pvID) | ||
} | ||
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type FakeStorageClassInfo []storagev1.StorageClass | ||
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func (classes FakeStorageClassInfo) GetStorageClassInfo(name string) (*storagev1.StorageClass, error) { | ||
for _, sc := range classes { | ||
if sc.Name == name { | ||
return &sc, nil | ||
} | ||
} | ||
return nil, fmt.Errorf("Unable to find storage class: %s", name) | ||
} |
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@@ -173,7 +173,7 @@ func (ec *EquivalenceCache) InvalidateAllCachedPredicateItemOfNode(nodeName stri | |
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// InvalidateCachedPredicateItemForPodAdd is a wrapper of InvalidateCachedPredicateItem for pod add case | ||
func (ec *EquivalenceCache) InvalidateCachedPredicateItemForPodAdd(pod *v1.Pod, nodeName string) { | ||
// MatchInterPodAffinity: we assume scheduler can make sure newly binded pod | ||
// MatchInterPodAffinity: we assume scheduler can make sure newly bound pod | ||
// will not break the existing inter pod affinity. So we does not need to invalidate | ||
// MatchInterPodAffinity when pod added. | ||
// | ||
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@@ -188,12 +188,29 @@ func (ec *EquivalenceCache) InvalidateCachedPredicateItemForPodAdd(pod *v1.Pod, | |
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// GeneralPredicates: will always be affected by adding a new pod | ||
invalidPredicates := sets.NewString("GeneralPredicates") | ||
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// MaxPDVolumeCountPredicate: we check the volumes of pod to make decision. | ||
for _, vol := range pod.Spec.Volumes { | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Why does this need to be added here? There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. I noticed Hope I am understanding right :) There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. the volume count checker counts the volumes on pods that are assigned on nodes. I guess for the case where you create the Pod with NodeName already set, then yes, the predicate should be invalidated. |
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if vol.PersistentVolumeClaim != nil { | ||
invalidPredicates.Insert("MaxEBSVolumeCount", "MaxGCEPDVolumeCount", "MaxAzureDiskVolumeCount") | ||
} else { | ||
if vol.AWSElasticBlockStore != nil { | ||
invalidPredicates.Insert("MaxEBSVolumeCount") | ||
} | ||
if vol.GCEPersistentDisk != nil { | ||
invalidPredicates.Insert("MaxGCEPDVolumeCount") | ||
} | ||
if vol.AzureDisk != nil { | ||
invalidPredicates.Insert("MaxAzureDiskVolumeCount") | ||
} | ||
} | ||
} | ||
ec.InvalidateCachedPredicateItem(nodeName, invalidPredicates) | ||
} | ||
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// getHashEquivalencePod returns the hash of equivalence pod. | ||
// 1. equivalenceHash | ||
// 2. if equivalence pod is found | ||
// 2. if equivalence hash is valid | ||
func (ec *EquivalenceCache) getHashEquivalencePod(pod *v1.Pod) (uint64, bool) { | ||
equivalencePod := ec.getEquivalencePod(pod) | ||
if equivalencePod != nil { | ||
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Why do you also need to
*ref.Controller
?There was a problem hiding this comment.
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@msau42
ref.Controller
is a*bool
. Its value can be false.There was a problem hiding this comment.
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Ah thanks, makes sense