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modify fsStats to fsStatsType to avoid confusion with cadvisor types

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This commit is contained in:
derekwaynecarr 2016-07-25 22:40:22 -04:00
parent 9604b47c13
commit 0de1e62b30
4 changed files with 22 additions and 20 deletions
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26
pkg/kubelet/eviction/helpers.go
View File

@ -255,6 +255,7 @@ func memoryUsage(memStats *statsapi.MemoryStats) *resource.Quantity {
}
// localVolumeNames returns the set of volumes for the pod that are local
// TODO: sumamry API should report what volumes consume local storage rather than hard-code here.
func localVolumeNames(pod *api.Pod) []string {
result := []string{}
for _, volume := range pod.Spec.Volumes {
@ -269,22 +270,23 @@ func localVolumeNames(pod *api.Pod) []string {
}
// podDiskUsage aggregates pod disk usage for the specified stats to measure.
func podDiskUsage(podStats statsapi.PodStats, pod *api.Pod, statsToMeasure []fsStats) (api.ResourceList, error) {
func podDiskUsage(podStats statsapi.PodStats, pod *api.Pod, statsToMeasure []fsStatsType) (api.ResourceList, error) {
disk := resource.Quantity{Format: resource.BinarySI}
for _, container := range podStats.Containers {
if hasFsStats(statsToMeasure, fsStatsRoot) {
if hasFsStatsType(statsToMeasure, fsStatsRoot) {
disk.Add(*diskUsage(container.Rootfs))
}
if hasFsStats(statsToMeasure, fsStatsLogs) {
if hasFsStatsType(statsToMeasure, fsStatsLogs) {
disk.Add(*diskUsage(container.Logs))
}
}
if hasFsStats(statsToMeasure, fsStatsLocalVolumeSource) {
if hasFsStatsType(statsToMeasure, fsStatsLocalVolumeSource) {
volumeNames := localVolumeNames(pod)
for _, volumeName := range volumeNames {
for _, volumeStats := range podStats.VolumeStats {
if volumeStats.Name == volumeName {
disk.Add(*diskUsage(&volumeStats.FsStats))
break
}
}
}
@ -451,7 +453,7 @@ func memory(stats statsFunc) cmpFunc {
}
// disk compares pods by largest consumer of disk relative to request.
func disk(stats statsFunc, fsStatsToMeasure []fsStats) cmpFunc {
func disk(stats statsFunc, fsStatsToMeasure []fsStatsType) cmpFunc {
return func(p1, p2 *api.Pod) int {
p1Stats, found := stats(p1)
// if we have no usage stats for p1, we want p2 first
@ -489,7 +491,7 @@ func rankMemoryPressure(pods []*api.Pod, stats statsFunc) {
}
// rankDiskPressureFunc returns a rankFunc that measures the specified fs stats.
func rankDiskPressureFunc(fsStatsToMeasure []fsStats) rankFunc {
func rankDiskPressureFunc(fsStatsToMeasure []fsStatsType) rankFunc {
return func(pods []*api.Pod, stats statsFunc) {
orderedBy(qosComparator, disk(stats, fsStatsToMeasure)).Sort(pods)
}
@ -622,8 +624,8 @@ func nodeConditionsObservedSince(observedAt nodeConditionsObservedAt, period tim
return results
}
// hgasFsStats returns true if the fsStat is in the input list
func hasFsStats(inputs []fsStats, item fsStats) bool {
// hasFsStatsType returns true if the fsStat is in the input list
func hasFsStatsType(inputs []fsStatsType, item fsStatsType) bool {
for _, input := range inputs {
if input == item {
return true
@ -676,7 +678,7 @@ func isSoftEviction(thresholds []Threshold, starvedResource api.ResourceName) bo
return true
}
// buildresourceToRankFunc returns ranking functions associated with resources
// buildResourceToRankFunc returns ranking functions associated with resources
func buildResourceToRankFunc(withImageFs bool) map[api.ResourceName]rankFunc {
resourceToRankFunc := map[api.ResourceName]rankFunc{
api.ResourceMemory: rankMemoryPressure,
@ -684,12 +686,12 @@ func buildResourceToRankFunc(withImageFs bool) map[api.ResourceName]rankFunc {
// usage of an imagefs is optional
if withImageFs {
// with an imagefs, nodefs pod rank func for eviction only includes logs and local volumes
resourceToRankFunc[resourceNodeFs] = rankDiskPressureFunc([]fsStats{fsStatsLogs, fsStatsLocalVolumeSource})
resourceToRankFunc[resourceNodeFs] = rankDiskPressureFunc([]fsStatsType{fsStatsLogs, fsStatsLocalVolumeSource})
// with an imagefs, imagefs pod rank func for eviction only includes rootfs
resourceToRankFunc[resourceImageFs] = rankDiskPressureFunc([]fsStats{fsStatsRoot})
resourceToRankFunc[resourceImageFs] = rankDiskPressureFunc([]fsStatsType{fsStatsRoot})
} else {
// without an imagefs, nodefs pod rank func for eviction looks at all fs stats
resourceToRankFunc[resourceNodeFs] = rankDiskPressureFunc([]fsStats{fsStatsRoot, fsStatsLogs, fsStatsLocalVolumeSource})
resourceToRankFunc[resourceNodeFs] = rankDiskPressureFunc([]fsStatsType{fsStatsRoot, fsStatsLogs, fsStatsLocalVolumeSource})
}
return resourceToRankFunc
}

4
pkg/kubelet/eviction/helpers_test.go
View File

@ -311,7 +311,7 @@ func TestOrderedByDisk(t *testing.T) {
return result, found
}
pods := []*api.Pod{pod1, pod2, pod3, pod4, pod5, pod6}
orderedBy(disk(statsFn, []fsStats{fsStatsRoot, fsStatsLogs, fsStatsLocalVolumeSource})).Sort(pods)
orderedBy(disk(statsFn, []fsStatsType{fsStatsRoot, fsStatsLogs, fsStatsLocalVolumeSource})).Sort(pods)
expected := []*api.Pod{pod6, pod5, pod4, pod3, pod2, pod1}
for i := range expected {
if pods[i] != expected[i] {
@ -377,7 +377,7 @@ func TestOrderedByQoSDisk(t *testing.T) {
return result, found
}
pods := []*api.Pod{pod1, pod2, pod3, pod4, pod5, pod6}
orderedBy(qosComparator, disk(statsFn, []fsStats{fsStatsRoot, fsStatsLogs, fsStatsLocalVolumeSource})).Sort(pods)
orderedBy(qosComparator, disk(statsFn, []fsStatsType{fsStatsRoot, fsStatsLogs, fsStatsLocalVolumeSource})).Sort(pods)
expected := []*api.Pod{pod2, pod1, pod4, pod3, pod6, pod5}
for i := range expected {
if pods[i] != expected[i] {

10
pkg/kubelet/eviction/types.go
View File

@ -36,16 +36,16 @@ const (
SignalImageFsAvailable Signal = "imagefs.available"
)
// fsStats defines the types of filesystem stats to collect.
type fsStats string
// fsStatsType defines the types of filesystem stats to collect.
type fsStatsType string
const (
// fsStatsLocalVolumeSource identifies stats for pod local volume sources.
fsStatsLocalVolumeSource fsStats = "localVolumeSource"
fsStatsLocalVolumeSource fsStatsType = "localVolumeSource"
// fsStatsLogs identifies stats for pod logs.
fsStatsLogs fsStats = "logs"
fsStatsLogs fsStatsType = "logs"
// fsStatsRoot identifies stats for pod container writable layers.
fsStatsRoot fsStats = "root"
fsStatsRoot fsStatsType = "root"
)
// ThresholdOperator is the operator used to express a Threshold.

2
plugin/pkg/scheduler/algorithm/predicates/predicates_test.go
View File

@ -2965,7 +2965,7 @@ func TestPodSchedulesOnNodeWithDiskPressureCondition(t *testing.T) {
}
for _, test := range tests {
fits, err := CheckNodeDiskPressurePredicate(test.pod, test.nodeInfo)
fits, err := CheckNodeDiskPressurePredicate(test.pod, nil, test.nodeInfo)
if fits != test.fits {
t.Errorf("%s: expected %v got %v", test.name, test.fits, fits)
}