mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-31 05:40:42 +00:00
a9593d634c
- Run hack/update-codegen.sh - Run hack/update-generated-device-plugin.sh - Run hack/update-generated-protobuf.sh - Run hack/update-generated-runtime.sh - Run hack/update-generated-swagger-docs.sh - Run hack/update-openapi-spec.sh - Run hack/update-gofmt.sh Signed-off-by: Davanum Srinivas <davanum@gmail.com>
718 lines
22 KiB
Go
718 lines
22 KiB
Go
//go:build linux
|
|
// +build linux
|
|
|
|
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
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
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
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.
|
|
*/
|
|
|
|
package e2enode
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"os"
|
|
"os/exec"
|
|
"regexp"
|
|
"sort"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
v1 "k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/api/resource"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
kubeletpodresourcesv1 "k8s.io/kubelet/pkg/apis/podresources/v1"
|
|
kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
|
|
"k8s.io/kubernetes/pkg/kubelet/apis/podresources"
|
|
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
|
|
"k8s.io/kubernetes/pkg/kubelet/cm/memorymanager/state"
|
|
"k8s.io/kubernetes/pkg/kubelet/util"
|
|
"k8s.io/kubernetes/test/e2e/framework"
|
|
e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
|
|
admissionapi "k8s.io/pod-security-admission/api"
|
|
"k8s.io/utils/pointer"
|
|
|
|
"github.com/onsi/ginkgo/v2"
|
|
"github.com/onsi/gomega"
|
|
)
|
|
|
|
const (
|
|
evictionHardMemory = "memory.available"
|
|
resourceMemory = "memory"
|
|
staticPolicy = "Static"
|
|
nonePolicy = "None"
|
|
hugepages2MiCount = 8
|
|
)
|
|
|
|
// Helper for makeMemoryManagerPod().
|
|
type memoryManagerCtnAttributes struct {
|
|
ctnName string
|
|
cpus string
|
|
memory string
|
|
hugepages2Mi string
|
|
}
|
|
|
|
// makeMemoryManagerContainers returns slice of containers with provided attributes and indicator of hugepages mount needed for those.
|
|
func makeMemoryManagerContainers(ctnCmd string, ctnAttributes []memoryManagerCtnAttributes) ([]v1.Container, bool) {
|
|
hugepagesMount := false
|
|
var containers []v1.Container
|
|
for _, ctnAttr := range ctnAttributes {
|
|
ctn := v1.Container{
|
|
Name: ctnAttr.ctnName,
|
|
Image: busyboxImage,
|
|
Resources: v1.ResourceRequirements{
|
|
Limits: v1.ResourceList{
|
|
v1.ResourceCPU: resource.MustParse(ctnAttr.cpus),
|
|
v1.ResourceMemory: resource.MustParse(ctnAttr.memory),
|
|
},
|
|
},
|
|
Command: []string{"sh", "-c", ctnCmd},
|
|
}
|
|
if ctnAttr.hugepages2Mi != "" {
|
|
hugepagesMount = true
|
|
|
|
ctn.Resources.Limits[hugepagesResourceName2Mi] = resource.MustParse(ctnAttr.hugepages2Mi)
|
|
ctn.VolumeMounts = []v1.VolumeMount{
|
|
{
|
|
Name: "hugepages-2mi",
|
|
MountPath: "/hugepages-2Mi",
|
|
},
|
|
}
|
|
}
|
|
|
|
containers = append(containers, ctn)
|
|
}
|
|
|
|
return containers, hugepagesMount
|
|
}
|
|
|
|
// makeMemoryMangerPod returns a pod with the provided ctnAttributes.
|
|
func makeMemoryManagerPod(podName string, initCtnAttributes, ctnAttributes []memoryManagerCtnAttributes) *v1.Pod {
|
|
hugepagesMount := false
|
|
memsetCmd := "grep Mems_allowed_list /proc/self/status | cut -f2"
|
|
memsetSleepCmd := memsetCmd + "&& sleep 1d"
|
|
var containers, initContainers []v1.Container
|
|
if len(initCtnAttributes) > 0 {
|
|
initContainers, _ = makeMemoryManagerContainers(memsetCmd, initCtnAttributes)
|
|
}
|
|
containers, hugepagesMount = makeMemoryManagerContainers(memsetSleepCmd, ctnAttributes)
|
|
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
GenerateName: podName,
|
|
},
|
|
Spec: v1.PodSpec{
|
|
RestartPolicy: v1.RestartPolicyNever,
|
|
Containers: containers,
|
|
InitContainers: initContainers,
|
|
},
|
|
}
|
|
|
|
if hugepagesMount {
|
|
pod.Spec.Volumes = []v1.Volume{
|
|
{
|
|
Name: "hugepages-2mi",
|
|
VolumeSource: v1.VolumeSource{
|
|
EmptyDir: &v1.EmptyDirVolumeSource{
|
|
Medium: mediumHugepages2Mi,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
}
|
|
|
|
return pod
|
|
}
|
|
|
|
func getMemoryManagerState() (*state.MemoryManagerCheckpoint, error) {
|
|
if _, err := os.Stat(memoryManagerStateFile); os.IsNotExist(err) {
|
|
return nil, fmt.Errorf("the memory manager state file %s does not exist", memoryManagerStateFile)
|
|
}
|
|
|
|
out, err := exec.Command("/bin/sh", "-c", fmt.Sprintf("cat %s", memoryManagerStateFile)).Output()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to run command 'cat %s': out: %s, err: %v", memoryManagerStateFile, out, err)
|
|
}
|
|
|
|
memoryManagerCheckpoint := &state.MemoryManagerCheckpoint{}
|
|
if err := json.Unmarshal(out, memoryManagerCheckpoint); err != nil {
|
|
return nil, fmt.Errorf("failed to unmarshal memory manager state file: %v", err)
|
|
}
|
|
return memoryManagerCheckpoint, nil
|
|
}
|
|
|
|
func getAllocatableMemoryFromStateFile(s *state.MemoryManagerCheckpoint) []state.Block {
|
|
var allocatableMemory []state.Block
|
|
for numaNodeID, numaNodeState := range s.MachineState {
|
|
for resourceName, memoryTable := range numaNodeState.MemoryMap {
|
|
if memoryTable.Allocatable == 0 {
|
|
continue
|
|
}
|
|
|
|
block := state.Block{
|
|
NUMAAffinity: []int{numaNodeID},
|
|
Type: resourceName,
|
|
Size: memoryTable.Allocatable,
|
|
}
|
|
allocatableMemory = append(allocatableMemory, block)
|
|
}
|
|
}
|
|
return allocatableMemory
|
|
}
|
|
|
|
type kubeletParams struct {
|
|
memoryManagerPolicy string
|
|
systemReservedMemory []kubeletconfig.MemoryReservation
|
|
systemReserved map[string]string
|
|
kubeReserved map[string]string
|
|
evictionHard map[string]string
|
|
}
|
|
|
|
func updateKubeletConfigWithMemoryManagerParams(initialCfg *kubeletconfig.KubeletConfiguration, params *kubeletParams) {
|
|
if initialCfg.FeatureGates == nil {
|
|
initialCfg.FeatureGates = map[string]bool{}
|
|
}
|
|
|
|
initialCfg.MemoryManagerPolicy = params.memoryManagerPolicy
|
|
|
|
// update system-reserved
|
|
if initialCfg.SystemReserved == nil {
|
|
initialCfg.SystemReserved = map[string]string{}
|
|
}
|
|
for resourceName, value := range params.systemReserved {
|
|
initialCfg.SystemReserved[resourceName] = value
|
|
}
|
|
|
|
// update kube-reserved
|
|
if initialCfg.KubeReserved == nil {
|
|
initialCfg.KubeReserved = map[string]string{}
|
|
}
|
|
for resourceName, value := range params.kubeReserved {
|
|
initialCfg.KubeReserved[resourceName] = value
|
|
}
|
|
|
|
// update hard eviction threshold
|
|
if initialCfg.EvictionHard == nil {
|
|
initialCfg.EvictionHard = map[string]string{}
|
|
}
|
|
for resourceName, value := range params.evictionHard {
|
|
initialCfg.EvictionHard[resourceName] = value
|
|
}
|
|
|
|
// update reserved memory
|
|
if initialCfg.ReservedMemory == nil {
|
|
initialCfg.ReservedMemory = []kubeletconfig.MemoryReservation{}
|
|
}
|
|
for _, memoryReservation := range params.systemReservedMemory {
|
|
initialCfg.ReservedMemory = append(initialCfg.ReservedMemory, memoryReservation)
|
|
}
|
|
}
|
|
|
|
func getAllNUMANodes() []int {
|
|
outData, err := exec.Command("/bin/sh", "-c", "lscpu").Output()
|
|
framework.ExpectNoError(err)
|
|
|
|
numaNodeRegex, err := regexp.Compile(`NUMA node(\d+) CPU\(s\):`)
|
|
framework.ExpectNoError(err)
|
|
|
|
matches := numaNodeRegex.FindAllSubmatch(outData, -1)
|
|
|
|
var numaNodes []int
|
|
for _, m := range matches {
|
|
n, err := strconv.Atoi(string(m[1]))
|
|
framework.ExpectNoError(err)
|
|
|
|
numaNodes = append(numaNodes, n)
|
|
}
|
|
|
|
sort.Ints(numaNodes)
|
|
return numaNodes
|
|
}
|
|
|
|
// Serial because the test updates kubelet configuration.
|
|
var _ = SIGDescribe("Memory Manager [Disruptive] [Serial] [Feature:MemoryManager]", func() {
|
|
// TODO: add more complex tests that will include interaction between CPUManager, MemoryManager and TopologyManager
|
|
var (
|
|
allNUMANodes []int
|
|
ctnParams, initCtnParams []memoryManagerCtnAttributes
|
|
is2MiHugepagesSupported *bool
|
|
isMultiNUMASupported *bool
|
|
testPod *v1.Pod
|
|
)
|
|
|
|
f := framework.NewDefaultFramework("memory-manager-test")
|
|
f.NamespacePodSecurityEnforceLevel = admissionapi.LevelPrivileged
|
|
|
|
memoryQuantity := resource.MustParse("1100Mi")
|
|
defaultKubeParams := &kubeletParams{
|
|
systemReservedMemory: []kubeletconfig.MemoryReservation{
|
|
{
|
|
NumaNode: 0,
|
|
Limits: v1.ResourceList{
|
|
resourceMemory: memoryQuantity,
|
|
},
|
|
},
|
|
},
|
|
systemReserved: map[string]string{resourceMemory: "500Mi"},
|
|
kubeReserved: map[string]string{resourceMemory: "500Mi"},
|
|
evictionHard: map[string]string{evictionHardMemory: "100Mi"},
|
|
}
|
|
|
|
verifyMemoryPinning := func(pod *v1.Pod, numaNodeIDs []int) {
|
|
ginkgo.By("Verifying the NUMA pinning")
|
|
|
|
output, err := e2epod.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, pod.Spec.Containers[0].Name)
|
|
framework.ExpectNoError(err)
|
|
|
|
currentNUMANodeIDs, err := cpuset.Parse(strings.Trim(output, "\n"))
|
|
framework.ExpectNoError(err)
|
|
|
|
framework.ExpectEqual(numaNodeIDs, currentNUMANodeIDs.ToSlice())
|
|
}
|
|
|
|
waitingForHugepages := func(hugepagesCount int) {
|
|
gomega.Eventually(func() error {
|
|
node, err := f.ClientSet.CoreV1().Nodes().Get(context.TODO(), framework.TestContext.NodeName, metav1.GetOptions{})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
capacity, ok := node.Status.Capacity[v1.ResourceName(hugepagesResourceName2Mi)]
|
|
if !ok {
|
|
return fmt.Errorf("the node does not have the resource %s", hugepagesResourceName2Mi)
|
|
}
|
|
|
|
size, succeed := capacity.AsInt64()
|
|
if !succeed {
|
|
return fmt.Errorf("failed to convert quantity to int64")
|
|
}
|
|
|
|
// 512 Mb, the expected size in bytes
|
|
expectedSize := int64(hugepagesCount * hugepagesSize2M * 1024)
|
|
if size != expectedSize {
|
|
return fmt.Errorf("the actual size %d is different from the expected one %d", size, expectedSize)
|
|
}
|
|
return nil
|
|
}, time.Minute, framework.Poll).Should(gomega.BeNil())
|
|
}
|
|
|
|
ginkgo.BeforeEach(func() {
|
|
if isMultiNUMASupported == nil {
|
|
isMultiNUMASupported = pointer.BoolPtr(isMultiNUMA())
|
|
}
|
|
|
|
if is2MiHugepagesSupported == nil {
|
|
is2MiHugepagesSupported = pointer.BoolPtr(isHugePageAvailable(hugepagesSize2M))
|
|
}
|
|
|
|
if len(allNUMANodes) == 0 {
|
|
allNUMANodes = getAllNUMANodes()
|
|
}
|
|
|
|
// allocate hugepages
|
|
if *is2MiHugepagesSupported {
|
|
ginkgo.By("Configuring hugepages")
|
|
gomega.Eventually(func() error {
|
|
return configureHugePages(hugepagesSize2M, hugepages2MiCount, pointer.IntPtr(0))
|
|
}, 30*time.Second, framework.Poll).Should(gomega.BeNil())
|
|
}
|
|
})
|
|
|
|
// dynamically update the kubelet configuration
|
|
ginkgo.JustBeforeEach(func() {
|
|
// allocate hugepages
|
|
if *is2MiHugepagesSupported {
|
|
ginkgo.By("Waiting for hugepages resource to become available on the local node")
|
|
waitingForHugepages(hugepages2MiCount)
|
|
|
|
for i := 0; i < len(ctnParams); i++ {
|
|
ctnParams[i].hugepages2Mi = "8Mi"
|
|
}
|
|
}
|
|
|
|
if len(ctnParams) > 0 {
|
|
testPod = makeMemoryManagerPod(ctnParams[0].ctnName, initCtnParams, ctnParams)
|
|
}
|
|
})
|
|
|
|
ginkgo.JustAfterEach(func() {
|
|
// delete the test pod
|
|
if testPod != nil && testPod.Name != "" {
|
|
f.PodClient().DeleteSync(testPod.Name, metav1.DeleteOptions{}, 2*time.Minute)
|
|
}
|
|
|
|
// release hugepages
|
|
if *is2MiHugepagesSupported {
|
|
ginkgo.By("Releasing allocated hugepages")
|
|
gomega.Eventually(func() error {
|
|
// configure hugepages on the NUMA node 0 to avoid hugepages split across NUMA nodes
|
|
return configureHugePages(hugepagesSize2M, 0, pointer.IntPtr(0))
|
|
}, 90*time.Second, 15*time.Second).ShouldNot(gomega.HaveOccurred(), "failed to release hugepages")
|
|
}
|
|
})
|
|
|
|
ginkgo.Context("with static policy", func() {
|
|
tempSetCurrentKubeletConfig(f, func(initialConfig *kubeletconfig.KubeletConfiguration) {
|
|
kubeParams := *defaultKubeParams
|
|
kubeParams.memoryManagerPolicy = staticPolicy
|
|
updateKubeletConfigWithMemoryManagerParams(initialConfig, &kubeParams)
|
|
})
|
|
|
|
ginkgo.JustAfterEach(func() {
|
|
// reset containers attributes
|
|
ctnParams = []memoryManagerCtnAttributes{}
|
|
initCtnParams = []memoryManagerCtnAttributes{}
|
|
})
|
|
|
|
// TODO: move the test to pod resource API test suite, see - https://github.com/kubernetes/kubernetes/issues/101945
|
|
ginkgo.It("should report memory data during request to pod resources GetAllocatableResources", func() {
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err)
|
|
defer conn.Close()
|
|
|
|
resp, err := cli.GetAllocatableResources(context.TODO(), &kubeletpodresourcesv1.AllocatableResourcesRequest{})
|
|
framework.ExpectNoError(err)
|
|
gomega.Expect(resp.Memory).ToNot(gomega.BeEmpty())
|
|
|
|
stateData, err := getMemoryManagerState()
|
|
framework.ExpectNoError(err)
|
|
|
|
stateAllocatableMemory := getAllocatableMemoryFromStateFile(stateData)
|
|
framework.ExpectEqual(len(resp.Memory), len(stateAllocatableMemory))
|
|
|
|
for _, containerMemory := range resp.Memory {
|
|
gomega.Expect(containerMemory.Topology).NotTo(gomega.BeNil())
|
|
framework.ExpectEqual(len(containerMemory.Topology.Nodes), 1)
|
|
gomega.Expect(containerMemory.Topology.Nodes[0]).NotTo(gomega.BeNil())
|
|
|
|
numaNodeID := int(containerMemory.Topology.Nodes[0].ID)
|
|
for _, numaStateMemory := range stateAllocatableMemory {
|
|
framework.ExpectEqual(len(numaStateMemory.NUMAAffinity), 1)
|
|
if numaNodeID != numaStateMemory.NUMAAffinity[0] {
|
|
continue
|
|
}
|
|
|
|
if containerMemory.MemoryType != string(numaStateMemory.Type) {
|
|
continue
|
|
}
|
|
|
|
gomega.Expect(containerMemory.Size_).To(gomega.BeEquivalentTo(numaStateMemory.Size))
|
|
}
|
|
}
|
|
|
|
gomega.Expect(resp.Memory).ToNot(gomega.BeEmpty())
|
|
})
|
|
|
|
ginkgo.When("guaranteed pod has init and app containers", func() {
|
|
ginkgo.BeforeEach(func() {
|
|
// override containers parameters
|
|
ctnParams = []memoryManagerCtnAttributes{
|
|
{
|
|
ctnName: "memory-manager-static",
|
|
cpus: "100m",
|
|
memory: "128Mi",
|
|
},
|
|
}
|
|
// override init container parameters
|
|
initCtnParams = []memoryManagerCtnAttributes{
|
|
{
|
|
ctnName: "init-memory-manager-static",
|
|
cpus: "100m",
|
|
memory: "128Mi",
|
|
},
|
|
}
|
|
})
|
|
|
|
ginkgo.It("should succeed to start the pod", func() {
|
|
ginkgo.By("Running the test pod")
|
|
testPod = f.PodClient().CreateSync(testPod)
|
|
|
|
// it no taste to verify NUMA pinning when the node has only one NUMA node
|
|
if !*isMultiNUMASupported {
|
|
return
|
|
}
|
|
|
|
verifyMemoryPinning(testPod, []int{0})
|
|
})
|
|
})
|
|
|
|
ginkgo.When("guaranteed pod has only app containers", func() {
|
|
ginkgo.BeforeEach(func() {
|
|
// override containers parameters
|
|
ctnParams = []memoryManagerCtnAttributes{
|
|
{
|
|
ctnName: "memory-manager-static",
|
|
cpus: "100m",
|
|
memory: "128Mi",
|
|
},
|
|
}
|
|
})
|
|
|
|
ginkgo.It("should succeed to start the pod", func() {
|
|
ginkgo.By("Running the test pod")
|
|
testPod = f.PodClient().CreateSync(testPod)
|
|
|
|
// it no taste to verify NUMA pinning when the node has only one NUMA node
|
|
if !*isMultiNUMASupported {
|
|
return
|
|
}
|
|
|
|
verifyMemoryPinning(testPod, []int{0})
|
|
})
|
|
})
|
|
|
|
ginkgo.When("multiple guaranteed pods started", func() {
|
|
var testPod2 *v1.Pod
|
|
|
|
ginkgo.BeforeEach(func() {
|
|
// override containers parameters
|
|
ctnParams = []memoryManagerCtnAttributes{
|
|
{
|
|
ctnName: "memory-manager-static",
|
|
cpus: "100m",
|
|
memory: "128Mi",
|
|
},
|
|
}
|
|
})
|
|
|
|
ginkgo.JustBeforeEach(func() {
|
|
testPod2 = makeMemoryManagerPod("memory-manager-static", initCtnParams, ctnParams)
|
|
})
|
|
|
|
ginkgo.It("should succeed to start all pods", func() {
|
|
ginkgo.By("Running the test pod and the test pod 2")
|
|
testPod = f.PodClient().CreateSync(testPod)
|
|
|
|
ginkgo.By("Running the test pod 2")
|
|
testPod2 = f.PodClient().CreateSync(testPod2)
|
|
|
|
// it no taste to verify NUMA pinning when the node has only one NUMA node
|
|
if !*isMultiNUMASupported {
|
|
return
|
|
}
|
|
|
|
verifyMemoryPinning(testPod, []int{0})
|
|
verifyMemoryPinning(testPod2, []int{0})
|
|
})
|
|
|
|
// TODO: move the test to pod resource API test suite, see - https://github.com/kubernetes/kubernetes/issues/101945
|
|
ginkgo.It("should report memory data for each guaranteed pod and container during request to pod resources List", func() {
|
|
ginkgo.By("Running the test pod and the test pod 2")
|
|
testPod = f.PodClient().CreateSync(testPod)
|
|
|
|
ginkgo.By("Running the test pod 2")
|
|
testPod2 = f.PodClient().CreateSync(testPod2)
|
|
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err)
|
|
defer conn.Close()
|
|
|
|
resp, err := cli.List(context.TODO(), &kubeletpodresourcesv1.ListPodResourcesRequest{})
|
|
framework.ExpectNoError(err)
|
|
|
|
for _, pod := range []*v1.Pod{testPod, testPod2} {
|
|
for _, podResource := range resp.PodResources {
|
|
if podResource.Name != pod.Name {
|
|
continue
|
|
}
|
|
|
|
for _, c := range pod.Spec.Containers {
|
|
for _, containerResource := range podResource.Containers {
|
|
if containerResource.Name != c.Name {
|
|
continue
|
|
}
|
|
|
|
for _, containerMemory := range containerResource.Memory {
|
|
q := c.Resources.Limits[v1.ResourceName(containerMemory.MemoryType)]
|
|
value, ok := q.AsInt64()
|
|
gomega.Expect(ok).To(gomega.BeTrue())
|
|
gomega.Expect(value).To(gomega.BeEquivalentTo(containerMemory.Size_))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
})
|
|
|
|
ginkgo.JustAfterEach(func() {
|
|
// delete the test pod 2
|
|
if testPod2.Name != "" {
|
|
f.PodClient().DeleteSync(testPod2.Name, metav1.DeleteOptions{}, 2*time.Minute)
|
|
}
|
|
})
|
|
})
|
|
|
|
// the test requires at least two NUMA nodes
|
|
// test on each NUMA node will start the pod that will consume almost all memory of the NUMA node except 256Mi
|
|
// after it will start an additional pod with the memory request that can not be satisfied by the single NUMA node
|
|
// free memory
|
|
ginkgo.When("guaranteed pod memory request is bigger than free memory on each NUMA node", func() {
|
|
var workloadPods []*v1.Pod
|
|
|
|
ginkgo.BeforeEach(func() {
|
|
if !*isMultiNUMASupported {
|
|
ginkgo.Skip("The machines has less than two NUMA nodes")
|
|
}
|
|
|
|
ctnParams = []memoryManagerCtnAttributes{
|
|
{
|
|
ctnName: "memory-manager-static",
|
|
cpus: "100m",
|
|
memory: "384Mi",
|
|
},
|
|
}
|
|
})
|
|
|
|
ginkgo.JustBeforeEach(func() {
|
|
stateData, err := getMemoryManagerState()
|
|
framework.ExpectNoError(err)
|
|
|
|
for _, memoryState := range stateData.MachineState {
|
|
// consume all memory except of 256Mi on each NUMA node via workload pods
|
|
workloadPodMemory := memoryState.MemoryMap[v1.ResourceMemory].Free - 256*1024*1024
|
|
memoryQuantity := resource.NewQuantity(int64(workloadPodMemory), resource.BinarySI)
|
|
workloadCtnAttrs := []memoryManagerCtnAttributes{
|
|
{
|
|
ctnName: "workload-pod",
|
|
cpus: "100m",
|
|
memory: memoryQuantity.String(),
|
|
},
|
|
}
|
|
workloadPod := makeMemoryManagerPod(workloadCtnAttrs[0].ctnName, initCtnParams, workloadCtnAttrs)
|
|
|
|
workloadPod = f.PodClient().CreateSync(workloadPod)
|
|
workloadPods = append(workloadPods, workloadPod)
|
|
}
|
|
})
|
|
|
|
ginkgo.It("should be rejected", func() {
|
|
ginkgo.By("Creating the pod")
|
|
testPod = f.PodClient().Create(testPod)
|
|
|
|
ginkgo.By("Checking that pod failed to start because of admission error")
|
|
gomega.Eventually(func() bool {
|
|
tmpPod, err := f.PodClient().Get(context.TODO(), testPod.Name, metav1.GetOptions{})
|
|
framework.ExpectNoError(err)
|
|
|
|
if tmpPod.Status.Phase != v1.PodFailed {
|
|
return false
|
|
}
|
|
|
|
if tmpPod.Status.Reason != "UnexpectedAdmissionError" {
|
|
return false
|
|
}
|
|
|
|
if !strings.Contains(tmpPod.Status.Message, "Pod Allocate failed due to [memorymanager]") {
|
|
return false
|
|
}
|
|
|
|
return true
|
|
}, time.Minute, 5*time.Second).Should(
|
|
gomega.Equal(true),
|
|
"the pod succeeded to start, when it should fail with the admission error",
|
|
)
|
|
})
|
|
|
|
ginkgo.JustAfterEach(func() {
|
|
for _, workloadPod := range workloadPods {
|
|
if workloadPod.Name != "" {
|
|
f.PodClient().DeleteSync(workloadPod.Name, metav1.DeleteOptions{}, 2*time.Minute)
|
|
}
|
|
}
|
|
})
|
|
})
|
|
})
|
|
|
|
ginkgo.Context("with none policy", func() {
|
|
tempSetCurrentKubeletConfig(f, func(initialConfig *kubeletconfig.KubeletConfiguration) {
|
|
kubeParams := *defaultKubeParams
|
|
kubeParams.memoryManagerPolicy = nonePolicy
|
|
updateKubeletConfigWithMemoryManagerParams(initialConfig, &kubeParams)
|
|
})
|
|
|
|
// empty context to configure same container parameters for all tests
|
|
ginkgo.Context("", func() {
|
|
ginkgo.BeforeEach(func() {
|
|
// override pod parameters
|
|
ctnParams = []memoryManagerCtnAttributes{
|
|
{
|
|
ctnName: "memory-manager-none",
|
|
cpus: "100m",
|
|
memory: "128Mi",
|
|
},
|
|
}
|
|
})
|
|
|
|
// TODO: move the test to pod resource API test suite, see - https://github.com/kubernetes/kubernetes/issues/101945
|
|
ginkgo.It("should not report any memory data during request to pod resources GetAllocatableResources", func() {
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err)
|
|
defer conn.Close()
|
|
|
|
resp, err := cli.GetAllocatableResources(context.TODO(), &kubeletpodresourcesv1.AllocatableResourcesRequest{})
|
|
framework.ExpectNoError(err)
|
|
|
|
gomega.Expect(resp.Memory).To(gomega.BeEmpty())
|
|
})
|
|
|
|
// TODO: move the test to pod resource API test suite, see - https://github.com/kubernetes/kubernetes/issues/101945
|
|
ginkgo.It("should not report any memory data during request to pod resources List", func() {
|
|
testPod = f.PodClient().CreateSync(testPod)
|
|
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err)
|
|
defer conn.Close()
|
|
|
|
resp, err := cli.List(context.TODO(), &kubeletpodresourcesv1.ListPodResourcesRequest{})
|
|
framework.ExpectNoError(err)
|
|
|
|
for _, podResource := range resp.PodResources {
|
|
if podResource.Name != testPod.Name {
|
|
continue
|
|
}
|
|
|
|
for _, containerResource := range podResource.Containers {
|
|
gomega.Expect(containerResource.Memory).To(gomega.BeEmpty())
|
|
}
|
|
}
|
|
})
|
|
|
|
ginkgo.It("should succeed to start the pod", func() {
|
|
testPod = f.PodClient().CreateSync(testPod)
|
|
|
|
// it no taste to verify NUMA pinning when the node has only one NUMA node
|
|
if !*isMultiNUMASupported {
|
|
return
|
|
}
|
|
|
|
verifyMemoryPinning(testPod, allNUMANodes)
|
|
})
|
|
})
|
|
})
|
|
})
|