Question

我对其中一个豆荚有问题。它说它处于挂起状态。

如果我描述了吊舱，这就是我所看到的：

Events:
  Type     Reason             Age                From                Message
  ----     ------             ----               ----                -------
  Normal   NotTriggerScaleUp  1m (x58 over 11m)  cluster-autoscaler  pod didn't trigger scale-up (it wouldn't fit if a new node is added): 2 node(s) didn't match node selector
  Warning  FailedScheduling   1m (x34 over 11m)  default-scheduler   0/6 nodes are available: 6 node(s) didn't match node selector.

如果我检查日志，那里什么也没有（它只是输出空值）。

-更新- 这是我的Pod Yaml文件

apiVersion: v1
kind: Pod
metadata:
  annotations:
    checksum/config: XXXXXXXXXXX
    checksum/dashboards-config: XXXXXXXXXXX
  creationTimestamp: 2020-02-11T10:15:15Z
  generateName: grafana-654667db5b-
  labels:
    app: grafana-grafana
    component: grafana
    pod-template-hash: "2102238616"
    release: grafana
  name: grafana-654667db5b-tnrlq
  namespace: monitoring
  ownerReferences:
  - apiVersion: apps/v1
    blockOwnerDeletion: true
    controller: true
    kind: ReplicaSet
    name: grafana-654667db5b
    uid: xxxx-xxxxx-xxxxxxxx-xxxxxxxx
  resourceVersion: "98843547"
  selfLink: /api/v1/namespaces/monitoring/pods/grafana-654667db5b-tnrlq
  uid: xxxx-xxxxx-xxxxxxxx-xxxxxxxx
spec:
  containers:
  - env:
    - name: GF_SECURITY_ADMIN_USER
      valueFrom:
        secretKeyRef:
          key: xxxx
          name: grafana
    - name: GF_SECURITY_ADMIN_PASSWORD
      valueFrom:
        secretKeyRef:
          key: xxxx
          name: grafana
    - name: GF_INSTALL_PLUGINS
      valueFrom:
        configMapKeyRef:
          key: grafana-install-plugins
          name: grafana-config
    image: grafana/grafana:5.0.4
    imagePullPolicy: Always
    name: grafana
    ports:
    - containerPort: 3000
      protocol: TCP
    readinessProbe:
      failureThreshold: 3
      httpGet:
        path: /api/health
        port: 3000
        scheme: HTTP
      initialDelaySeconds: 30
      periodSeconds: 10
      successThreshold: 1
      timeoutSeconds: 30
    resources:
      requests:
        cpu: 200m
        memory: 100Mi
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /etc/grafana
      name: config-volume
    - mountPath: /var/lib/grafana/dashboards
      name: dashboard-volume
    - mountPath: /var/lib/grafana
      name: storage-volume
    - mountPath: /var/run/secrets/kubernetes.io/serviceaccount
      name: default-token-tqb6j
      readOnly: true
  dnsPolicy: ClusterFirst
  initContainers:
  - command:
    - sh
    - -c
    - cp /tmp/config-volume-configmap/* /tmp/config-volume 2>/dev/null || true; cp
      /tmp/dashboard-volume-configmap/* /tmp/dashboard-volume 2>/dev/null || true
    image: busybox
    imagePullPolicy: Always
    name: copy-configs
    resources: {}
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /tmp/config-volume-configmap
      name: config-volume-configmap
    - mountPath: /tmp/dashboard-volume-configmap
      name: dashboard-volume-configmap
    - mountPath: /tmp/config-volume
      name: config-volume
    - mountPath: /tmp/dashboard-volume
      name: dashboard-volume
    - mountPath: /var/run/secrets/kubernetes.io/serviceaccount
      name: default-token-tqb6j
      readOnly: true
  nodeSelector:
    nodePool: cluster
  priority: 0
  restartPolicy: Always
  schedulerName: default-scheduler
  securityContext: {}
  serviceAccount: default
  serviceAccountName: default
  terminationGracePeriodSeconds: 300
  tolerations:
  - effect: NoExecute
    key: node.kubernetes.io/not-ready
    operator: Exists
    tolerationSeconds: 300
  - effect: NoExecute
    key: node.kubernetes.io/unreachable
    operator: Exists
    tolerationSeconds: 300
  volumes:
  - emptyDir: {}
    name: config-volume
  - emptyDir: {}
    name: dashboard-volume
  - configMap:
      defaultMode: 420
      name: grafana-config
    name: config-volume-configmap
  - configMap:
      defaultMode: 420
      name: grafana-dashs
    name: dashboard-volume-configmap
  - name: storage-volume
    persistentVolumeClaim:
      claimName: grafana
  - name: default-token-tqb6j
    secret:
      defaultMode: 420
      secretName: default-token-tqb6j
status:
  conditions:
  - lastProbeTime: 2020-02-11T10:45:37Z
    lastTransitionTime: 2020-02-11T10:15:15Z
    message: '0/6 nodes are available: 6 node(s) didn''t match node selector.'
    reason: Unschedulable
    status: "False"
    type: PodScheduled
  phase: Pending
  qosClass: Burstable

您知道该如何进一步调试吗？

Answer 1

解决方案：您可以执行以下两项操作之一，以允许调度程序完成您的pod创建请求。

您可以选择从吊舱Yaml中删除这些行，然后从头开始重新创建吊舱（如果出于某种原因需要选择器，请继续执行下一步2）
```
nodeSelector: 
    nodePool: cluster 
```

或

您可以确保将此nodePool: cluster作为标签添加到所有节点上，以便使用可用的选择器来安排广告连播的时间。

您可以使用此命令标记所有节点

kubectl label nodes <your node name> nodePool=cluster

通过在集群详细信息中替换每个节点或仅希望使用此标签选择的节点的节点名称来运行上述命令。

Answer 2

您的Pod可能使用了调度程序无法满足的节点选择器。检查广告连播说明中是否有类似内容

    apiVersion: v1
    kind: Pod
    metadata:
      name: nginx
      labels:
        env: test
    spec:
      ...
      nodeSelector:
        disktype: ssd

并检查您的节点是否被相应地标记。

Pod处于待处理阶段（错误：FailedScheduling：节点与节点选择器不匹配）

2 个答案: