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Merge pull request #47566 from zhangxiaoyu-zidif/cleanup-add-comment-for-scheduler-predicates

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Automatic merge from submit-queue

Cleanup predicates.go

**What this PR does / why we need it**:
cleanup some comments and errors.New().

**Special notes for your reviewer**:
/cc @jayunit100
 
**Release note**:

```release-note
NONE
```
This commit is contained in:
Kubernetes Submit Queue 2017-06-25 17:59:29 -07:00 committed by GitHub
commit c885c70c9b
1 changed files with 4 additions and 5 deletions
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9
plugin/pkg/scheduler/algorithm/predicates/predicates.go
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@ -17,7 +17,6 @@ limitations under the License.
package predicates
import (
"errors"
"fmt"
"math/rand"
"strconv"
@ -1008,7 +1007,7 @@ func (c *PodAffinityChecker) InterPodAffinityMatches(pod *v1.Pod, meta interface
// TODO: Do we really need any pod matching, or all pods matching? I think the latter.
func (c *PodAffinityChecker) anyPodMatchesPodAffinityTerm(pod *v1.Pod, allPods []*v1.Pod, node *v1.Node, term *v1.PodAffinityTerm) (bool, bool, error) {
if len(term.TopologyKey) == 0 {
return false, false, errors.New("Empty topologyKey is not allowed except for PreferredDuringScheduling pod anti-affinity")
return false, false, fmt.Errorf("empty topologyKey is not allowed except for PreferredDuringScheduling pod anti-affinity")
}
matchingPodExists := false
namespaces := priorityutil.GetNamespacesFromPodAffinityTerm(pod, term)
@ -1248,7 +1247,7 @@ func PodToleratesNodeTaints(pod *v1.Pod, meta interface{}, nodeInfo *schedulerca
return false, []algorithm.PredicateFailureReason{ErrTaintsTolerationsNotMatch}, nil
}
// Determine if a pod is scheduled with best-effort QoS
// isPodBestEffort checks if pod is scheduled with best-effort QoS
func isPodBestEffort(pod *v1.Pod) bool {
return v1qos.GetPodQOS(pod) == v1.PodQOSBestEffort
}
@ -1268,7 +1267,7 @@ func CheckNodeMemoryPressurePredicate(pod *v1.Pod, meta interface{}, nodeInfo *s
return true, nil, nil
}
// is node under presure?
// check if node is under memory preasure
if nodeInfo.MemoryPressureCondition() == v1.ConditionTrue {
return false, []algorithm.PredicateFailureReason{ErrNodeUnderMemoryPressure}, nil
}
@ -1278,7 +1277,7 @@ func CheckNodeMemoryPressurePredicate(pod *v1.Pod, meta interface{}, nodeInfo *s
// CheckNodeDiskPressurePredicate checks if a pod can be scheduled on a node
// reporting disk pressure condition.
func CheckNodeDiskPressurePredicate(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error) {
// is node under presure?
// check if node is under disk preasure
if nodeInfo.DiskPressureCondition() == v1.ConditionTrue {
return false, []algorithm.PredicateFailureReason{ErrNodeUnderDiskPressure}, nil
}