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Use Allocatable to replace Capacity

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Use allocate instead in priorities
This commit is contained in:
harry 2015-12-24 16:29:18 +08:00
parent ad827c6b62
commit e64fe82245
4 changed files with 27 additions and 13 deletions
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16
plugin/pkg/scheduler/algorithm/predicates/predicates.go
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@ -266,9 +266,9 @@ func getResourceRequest(pod *api.Pod) resourceRequest {
return result return result
} }
func CheckPodsExceedingFreeResources(pods []*api.Pod, capacity api.ResourceList) (fitting []*api.Pod, notFittingCPU, notFittingMemory []*api.Pod) { func CheckPodsExceedingFreeResources(pods []*api.Pod, allocatable api.ResourceList) (fitting []*api.Pod, notFittingCPU, notFittingMemory []*api.Pod) {
totalMilliCPU := capacity.Cpu().MilliValue() totalMilliCPU := allocatable.Cpu().MilliValue()
totalMemory := capacity.Memory().Value() totalMemory := allocatable.Memory().Value()
milliCPURequested := int64(0) milliCPURequested := int64(0)
memoryRequested := int64(0) memoryRequested := int64(0)
for _, pod := range pods { for _, pod := range pods {
@ -304,8 +304,10 @@ func (r *ResourceFit) PodFitsResources(pod *api.Pod, existingPods []*api.Pod, no
return false, err return false, err
} }
if int64(len(existingPods))+1 > info.Status.Capacity.Pods().Value() { allocatable := info.Status.Allocatable
glog.V(10).Infof("Cannot schedule Pod %+v, because Node %+v is full, running %v out of %v Pods.", podName(pod), node, len(existingPods), info.Status.Capacity.Pods().Value())
if int64(len(existingPods))+1 > allocatable.Pods().Value() {
glog.V(10).Infof("Cannot schedule Pod %+v, because Node %+v is full, running %v out of %v Pods.", podName(pod), node, len(existingPods), allocatable.Pods().Value())
return false, ErrExceededMaxPodNumber return false, ErrExceededMaxPodNumber
} }
@ -315,7 +317,7 @@ func (r *ResourceFit) PodFitsResources(pod *api.Pod, existingPods []*api.Pod, no
} }
pods := append(existingPods, pod) pods := append(existingPods, pod)
_, exceedingCPU, exceedingMemory := CheckPodsExceedingFreeResources(pods, info.Status.Capacity) _, exceedingCPU, exceedingMemory := CheckPodsExceedingFreeResources(pods, allocatable)
if len(exceedingCPU) > 0 { if len(exceedingCPU) > 0 {
glog.V(10).Infof("Cannot schedule Pod %+v, because Node %v does not have sufficient CPU", podName(pod), node) glog.V(10).Infof("Cannot schedule Pod %+v, because Node %v does not have sufficient CPU", podName(pod), node)
return false, ErrInsufficientFreeCPU return false, ErrInsufficientFreeCPU
@ -324,7 +326,7 @@ func (r *ResourceFit) PodFitsResources(pod *api.Pod, existingPods []*api.Pod, no
glog.V(10).Infof("Cannot schedule Pod %+v, because Node %v does not have sufficient Memory", podName(pod), node) glog.V(10).Infof("Cannot schedule Pod %+v, because Node %v does not have sufficient Memory", podName(pod), node)
return false, ErrInsufficientFreeMemory return false, ErrInsufficientFreeMemory
} }
glog.V(10).Infof("Schedule Pod %+v on Node %+v is allowed, Node is running only %v out of %v Pods.", podName(pod), node, len(pods)-1, info.Status.Capacity.Pods().Value()) glog.V(10).Infof("Schedule Pod %+v on Node %+v is allowed, Node is running only %v out of %v Pods.", podName(pod), node, len(pods)-1, allocatable.Pods().Value())
return true, nil return true, nil
} }

12
plugin/pkg/scheduler/algorithm/predicates/predicates_test.go
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@ -54,6 +54,14 @@ func makeResources(milliCPU int64, memory int64, pods int64) api.NodeResources {
} }
} }
func makeAllocatableResources(milliCPU int64, memory int64, pods int64) api.ResourceList {
return api.ResourceList{
api.ResourceCPU: *resource.NewMilliQuantity(milliCPU, resource.DecimalSI),
api.ResourceMemory: *resource.NewQuantity(memory, resource.BinarySI),
api.ResourcePods: *resource.NewQuantity(pods, resource.DecimalSI),
}
}
func newResourcePod(usage ...resourceRequest) *api.Pod { func newResourcePod(usage ...resourceRequest) *api.Pod {
containers := []api.Container{} containers := []api.Container{}
for _, req := range usage { for _, req := range usage {
@ -130,7 +138,7 @@ func TestPodFitsResources(t *testing.T) {
} }
for _, test := range enoughPodsTests { for _, test := range enoughPodsTests {
node := api.Node{Status: api.NodeStatus{Capacity: makeResources(10, 20, 32).Capacity}} node := api.Node{Status: api.NodeStatus{Capacity: makeResources(10, 20, 32).Capacity, Allocatable: makeAllocatableResources(10, 20, 32)}}
fit := ResourceFit{FakeNodeInfo(node)} fit := ResourceFit{FakeNodeInfo(node)}
fits, err := fit.PodFitsResources(test.pod, test.existingPods, "machine") fits, err := fit.PodFitsResources(test.pod, test.existingPods, "machine")
@ -178,7 +186,7 @@ func TestPodFitsResources(t *testing.T) {
}, },
} }
for _, test := range notEnoughPodsTests { for _, test := range notEnoughPodsTests {
node := api.Node{Status: api.NodeStatus{Capacity: makeResources(10, 20, 1).Capacity}} node := api.Node{Status: api.NodeStatus{Capacity: api.ResourceList{}, Allocatable: makeAllocatableResources(10, 20, 1)}}
fit := ResourceFit{FakeNodeInfo(node)} fit := ResourceFit{FakeNodeInfo(node)}
fits, err := fit.PodFitsResources(test.pod, test.existingPods, "machine") fits, err := fit.PodFitsResources(test.pod, test.existingPods, "machine")

8
plugin/pkg/scheduler/algorithm/priorities/priorities.go
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@ -76,8 +76,8 @@ func getNonzeroRequests(requests *api.ResourceList) (int64, int64) {
func calculateResourceOccupancy(pod *api.Pod, node api.Node, pods []*api.Pod) schedulerapi.HostPriority { func calculateResourceOccupancy(pod *api.Pod, node api.Node, pods []*api.Pod) schedulerapi.HostPriority {
totalMilliCPU := int64(0) totalMilliCPU := int64(0)
totalMemory := int64(0) totalMemory := int64(0)
capacityMilliCPU := node.Status.Capacity.Cpu().MilliValue() capacityMilliCPU := node.Status.Allocatable.Cpu().MilliValue()
capacityMemory := node.Status.Capacity.Memory().Value() capacityMemory := node.Status.Allocatable.Memory().Value()
for _, existingPod := range pods { for _, existingPod := range pods {
for _, container := range existingPod.Spec.Containers { for _, container := range existingPod.Spec.Containers {
@ -208,8 +208,8 @@ func calculateBalancedResourceAllocation(pod *api.Pod, node api.Node, pods []*ap
totalMemory += memory totalMemory += memory
} }
capacityMilliCPU := node.Status.Capacity.Cpu().MilliValue() capacityMilliCPU := node.Status.Allocatable.Cpu().MilliValue()
capacityMemory := node.Status.Capacity.Memory().Value() capacityMemory := node.Status.Allocatable.Memory().Value()
cpuFraction := fractionOfCapacity(totalMilliCPU, capacityMilliCPU) cpuFraction := fractionOfCapacity(totalMilliCPU, capacityMilliCPU)
memoryFraction := fractionOfCapacity(totalMemory, capacityMemory) memoryFraction := fractionOfCapacity(totalMemory, capacityMemory)

4
plugin/pkg/scheduler/algorithm/priorities/priorities_test.go
View File

@ -38,6 +38,10 @@ func makeNode(node string, milliCPU, memory int64) api.Node {
"cpu": *resource.NewMilliQuantity(milliCPU, resource.DecimalSI), "cpu": *resource.NewMilliQuantity(milliCPU, resource.DecimalSI),
"memory": *resource.NewQuantity(memory, resource.BinarySI), "memory": *resource.NewQuantity(memory, resource.BinarySI),
}, },
Allocatable: api.ResourceList{
"cpu": *resource.NewMilliQuantity(milliCPU, resource.DecimalSI),
"memory": *resource.NewQuantity(memory, resource.BinarySI),
},
}, },
} }
} }