如何查看k8s(kubernetes), scheduler组件日志,了解评分过程
1.打开/etc/kubernetes/manifests/kube-scheduler.yaml,设置日志等级为10
apiVersion: v1
kind: Pod
metadata:
creationTimestamp: null
labels:
component: kube-scheduler
tier: control-plane
name: kube-scheduler
namespace: kube-system
spec:
containers:
- command:
- kube-scheduler
- --authentication-kubeconfig=/etc/kubernetes/scheduler.conf
- --authorization-kubeconfig=/etc/kubernetes/scheduler.conf
- --bind-address=127.0.0.1
- --kubeconfig=/etc/kubernetes/scheduler.conf
- --leader-elect=true
- --v=10 //日志等级设置为10
image: registry.aliyuncs.com/google_containers/kube-scheduler:v1.24.0
2.使用命令部署如下deployment,进行测试
kubectl apply -f aff_pod.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: aff-pod
spec:
selector:
matchLabels:
app: aff-pod
replicas: 15
template:
metadata:
labels:
app: aff-pod
spec:
topologySpreadConstraints:
- maxSkew: 1
topologyKey: zone
whenUnsatisfiable: ScheduleAnyway
labelSelector:
matchLabels:
app: aff-pod
containers:
- name: with-node-affinity
image: jackingqueen/testweb:0.0.1
3.查看scheduler日志，就能看到pod打分过程
kubectl logs kube-scheduler-k8s-master -n kube-system -f --tail=30 |grep score
部分日志如下:
I1014 05:50:42.935028 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-fjmd6" plugin="VolumeBinding" node="k8s-node2" score=0
I1014 05:50:42.935050 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-fjmd6" plugin="VolumeBinding" node="k8s-master" score=0
I1014 05:50:42.935071 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-fjmd6" plugin="PodTopologySpread" node="k8s-node1" score=160
I1014 05:50:42.935092 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-fjmd6" plugin="PodTopologySpread" node="k8s-node2" score=160
I1014 05:50:42.935113 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-fjmd6" plugin="PodTopologySpread" node="k8s-master" score=200
I1014 05:50:42.935133 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-fjmd6" plugin="InterPodAffinity" node="k8s-node1" score=0
I1014 05:50:42.935153 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-fjmd6" plugin="InterPodAffinity" node="k8s-node2" score=0
I1014 05:50:42.935173 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-fjmd6" plugin="InterPodAffinity" node="k8s-master" score=0
I1014 05:50:42.935201 1 schedule_one.go:701] "Calculated node's final score for pod" pod="default/aff-pod-678b64d849-fjmd6" node="k8s-node1" score=686
I1014 05:50:42.935222 1 schedule_one.go:701] "Calculated node's final score for pod" pod="default/aff-pod-678b64d849-fjmd6" node="k8s-node2" score=685
I1014 05:50:42.935257 1 schedule_one.go:701] "Calculated node's final score for pod" pod="default/aff-pod-678b64d849-fjmd6" node="k8s-master"score=699
I1014 05:50:42.942232 1 resource_allocation.go:70] "Listing internal info for allocatable resources, requested resources and score" pod="default/aff-pod-678b64d849-qd9zz" node="k8s-node2" resourceAllocationScorer="LeastAllocated" allocatableResource=map[cpu:4000 memory:8116240384] requestedResource=map[cpu:1350 memory:2516582400] resourceScore=67
I1014 05:50:42.942318 1 resource_allocation.go:70] "Listing internal info for allocatable resources, requested resources and score" pod="default/aff-pod-678b64d849-qd9zz" node="k8s-node2" resourceAllocationScorer="NodeResourcesBalancedAllocation" allocatableResource=map[cpu:4000 memory:8116240384] requestedResource=map[cpu:250 memory:0] resourceScore=96
I1014 05:50:42.942042 1 resource_allocation.go:70] "Listing internal info for allocatable resources, requested resources and score" pod="default/aff-pod-678b64d849-qd9zz" node="k8s-master" resourceAllocationScorer="LeastAllocated" allocatableResource=map[cpu:4000 memory:16552931328] requestedResource=map[cpu:2900 memory:4865392640] resourceScore=48
I1014 05:50:42.942707 1 resource_allocation.go:70] "Listing internal info for allocatable resources, requested resources and score" pod="default/aff-pod-678b64d849-qd9zz" node="k8s-master" resourceAllocationScorer="NodeResourcesBalancedAllocation" allocatableResource=map[cpu:4000 memory:16552931328] requestedResource=map[cpu:1100 memory:251658240] resourceScore=87
I1014 05:50:42.942139 1 resource_allocation.go:70] "Listing internal info for allocatable resources, requested resources and score" pod="default/aff-pod-678b64d849-qd9zz" node="k8s-node1" resourceAllocationScorer="LeastAllocated" allocatableResource=map[cpu:4000 memory:8114462720] requestedResource=map[cpu:1350 memory:2401239040] resourceScore=68
I1014 05:50:42.942804 1 resource_allocation.go:70] "Listing internal info for allocatable resources, requested resources and score" pod="default/aff-pod-678b64d849-qd9zz" node="k8s-node1" resourceAllocationScorer="NodeResourcesBalancedAllocation" allocatableResource=map[cpu:4000 memory:8114462720] requestedResource=map[cpu:350 memory:94371840] resourceScore=96
I1014 05:50:42.942983 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="ImageLocality" node="k8s-master" score=62
I1014 05:50:42.943023 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="ImageLocality" node="k8s-node1" score=62
I1014 05:50:42.943048 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="ImageLocality" node="k8s-node2" score=62
I1014 05:50:42.943073 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="TaintToleration" node="k8s-master" score=300
I1014 05:50:42.947175 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="TaintToleration" node="k8s-node1" score=300
I1014 05:50:42.947222 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="TaintToleration" node="k8s-node2" score=300
I1014 05:50:42.947250 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="NodeAffinity" node="k8s-master" score=0
I1014 05:50:42.947275 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="NodeAffinity" node="k8s-node1" score=0
I1014 05:50:42.947299 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="NodeAffinity" node="k8s-node2" score=0
I1014 05:50:42.947324 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="NodeResourcesFit" node="k8s-master" score=48
I1014 05:50:42.947347 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="NodeResourcesFit" node="k8s-node1" score=68
I1014 05:50:42.947370 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="NodeResourcesFit" node="k8s-node2" score=67
I1014 05:50:42.947396 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="VolumeBinding" node="k8s-master" score=0
I1014 05:50:42.947420 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="VolumeBinding" node="k8s-node1" score=0
I1014 05:50:42.947443 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="VolumeBinding" node="k8s-node2" score=0
I1014 05:50:42.947466 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="PodTopologySpread" node="k8s-master" score=200
I1014 05:50:42.947492 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="PodTopologySpread" node="k8s-node1" score=200
I1014 05:50:42.947515 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="PodTopologySpread" node="k8s-node2" score=200
I1014 05:50:42.947541 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="InterPodAffinity" node="k8s-master" score=0
I1014 05:50:42.947564 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="InterPodAffinity" node="k8s-node1" score=0
I1014 05:50:42.947587 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="InterPodAffinity" node="k8s-node2" score=0
I1014 05:50:42.947611 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="NodeResourcesBalancedAllocation" node="k8s-master" score=87
I1014 05:50:42.947635 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="NodeResourcesBalancedAllocation" node="k8s-node1" score=96
I1014 05:50:42.947658 1 schedule_one.go:643] "Plugin scored node for pod" pod="default/aff-pod-678b64d849-qd9zz" plugin="NodeResourcesBalancedAllocation" node="k8s-node2" score=96
I1014 05:50:42.947691 1 schedule_one.go:701] "Calculated node's final score for pod" pod="default/aff-pod-678b64d849-qd9zz" node="k8s-master"score=697
I1014 05:50:42.947716 1 schedule_one.go:701] "Calculated node's final score for pod" pod="default/aff-pod-678b64d849-qd9zz" node="k8s-node1" score=726
I1014 05:50:42.947740 1 schedule_one.go:701] "Calculated node's final score for pod" pod="default/aff-pod-678b64d849-qd9zz" node="k8s-node2" score=725
