Kubernetes nodes are not ready原因查看

Bertha 。 2022-08-31 11:05 139阅读 0赞

今早收到了Prometheus的报警，4% of Kubernetes nodes are not ready。

直接查看node情况即可知道原因。

banfushen@pro:~/helm-chart/prometheus-netease/templates$ kubectl describe nodes ip-xx-x-xxx-xxx.ap-northeast-1.compute.internal
    Name:               ip-xx-x-xxx-xxx.ap-northeast-1.compute.internal
    Roles:              node
    Labels:             beta.kubernetes.io/arch=amd64
                        beta.kubernetes.io/instance-type=c5.xlarge
                        beta.kubernetes.io/os=linux
                        failure-domain.beta.kubernetes.io/region=ap-northeast-1
                        failure-domain.beta.kubernetes.io/zone=ap-northeast-1c
                        kubernetes.io/hostname=ip-xx-x-xxx-xxx.ap-northeast-1.compute.internal
                        kubernetes.io/role=node
                        node-role.kubernetes.io/node=
    Annotations:        node.alpha.kubernetes.io/ttl: 0
                        volumes.kubernetes.io/controller-managed-attach-detach: true
    CreationTimestamp:  Sat, 24 Jul 2021 03:05:08 +0800
    Taints:             <none>
    Unschedulable:      false
    Conditions:
      Type             Status  LastHeartbeatTime                 LastTransitionTime                Reason                       Message
      ----             ------  -----------------                 ------------------                ------                       -------
      OutOfDisk        False   Sat, 24 Jul 2021 18:00:31 +0800   Sat, 24 Jul 2021 03:05:08 +0800   KubeletHasSufficientDisk     kubelet has sufficient disk space available
      MemoryPressure   False   Sat, 24 Jul 2021 18:00:31 +0800   Sat, 24 Jul 2021 03:05:08 +0800   KubeletHasSufficientMemory   kubelet has sufficient memory available
      DiskPressure     False   Sat, 24 Jul 2021 18:00:31 +0800   Sat, 24 Jul 2021 03:05:08 +0800   KubeletHasNoDiskPressure     kubelet has no disk pressure
      PIDPressure      False   Sat, 24 Jul 2021 18:00:31 +0800   Sat, 24 Jul 2021 03:05:08 +0800   KubeletHasSufficientPID      kubelet has sufficient PID available
      Ready            True    Sat, 24 Jul 2021 18:00:31 +0800   Sat, 24 Jul 2021 03:05:28 +0800   KubeletReady                 kubelet is posting ready status