noderesources

Documentation

Index

• Constants
• func ErrReasonRequestNotFitMessageFunc(request, resource string) string
• type InsufficientResource
  • func FitsRequest(podRequest *PodRequest, nodeInfo framework.NodeInfo, ...) *InsufficientResource
• type PodRequest
  • func ComputePodResourceRequest(pod *v1.Pod) *PodRequest

Constants

const ErrReasonTooManyPods = "node(s) had too many pods"

Functions

func ErrReasonRequestNotFitMessageFunc

func ErrReasonRequestNotFitMessageFunc(request, resource string) string

Types

type InsufficientResource

type InsufficientResource struct {
	ResourceName v1.ResourceName
	// We explicitly have a parameter for reason to avoid formatting a message on the fly
	// for common resources, which is expensive for cluster autoscaler simulations.
	Reason    string
	Requested int64
	Used      int64
	Capacity  int64
}

InsufficientResource describes what kind of resource limit is hit and caused the pod to not fit the node.

func FitsRequest

func FitsRequest(podRequest *PodRequest, nodeInfo framework.NodeInfo, ignoredExtendedResources, ignoredResourceGroups sets.String) *InsufficientResource

type PodRequest

type PodRequest struct {
	framework.Resource
	ResourceType    podutil.PodResourceType
	IgnorePodsLimit bool
	Err             error
}

PodRequest computed at PreFilter and used at Filter.

func ComputePodResourceRequest

func ComputePodResourceRequest(pod *v1.Pod) *PodRequest

ComputePodResourceRequest returns a framework.Resource that covers the largest width in each resource dimension. Because init-containers run sequentially, we collect the max in each dimension iteratively. In contrast, we sum the resource vectors for regular containers since they run simultaneously.

Example:

Pod:

InitContainers
  IC1:
    CPU: 2
    Memory: 1G
  IC2:
    CPU: 2
    Memory: 3G
Containers
  C1:
    CPU: 2
    Memory: 1G
  C2:
    CPU: 1
    Memory: 1G

Result: CPU: 3, Memory: 3G