kubernetes 集群状态异常 [ connect: connection refused ]

Love The Way You Lie 2022-08-29 00:01 582阅读 0赞

获取kubectl状态有报错信息: Get “http://127.0.0.1:10251/healthz”: dial tcp 127.0.0.1:10251: connect: connection

出现这种情况，是/etc/kubernetes/manifests下的kube-controller-manager.yaml和kube-scheduler.yaml设置的默认端口是0，在文件中注释掉就可以了

*  现象

[root@master01 manifests]# kubectl get cs
    Warning: v1 ComponentStatus is deprecated in v1.19+
    NAME                 STATUS      MESSAGE                                                                                       ERROR
    scheduler            Unhealthy   Get "http://127.0.0.1:10251/healthz": dial tcp 127.0.0.1:10251: connect: connection refused
    controller-manager   Healthy     ok
    etcd-0               Healthy     { "health":"true","reason":""}

*  解决方式

1.  进入到配合目录 `/etc/kubernetes/manifests`

[root@master01 manifests]# cd /etc/kubernetes/manifests
    [root@master01 manifests]# ll
    总用量 16
    -rw------- 1 root root 2225 8月   9 22:59 etcd.yaml
    -rw------- 1 root root 3348 8月   9 22:59 kube-apiserver.yaml
    -rw------- 1 root root 2751 8月  10 11:34 kube-controller-manager.yaml
    -rw------- 1 root root 1451 8月  10 11:34 kube-scheduler.yaml

1.  修改 `/etc/kubernetes/manifests/kube-controller-manager.yaml` 注释 ‘- --port=0’  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5nbG9uZ180NDQ0_size_16_color_FFFFFF_t_70]
2.  修改 `/etc/kubernetes/manifests/kube-scheduler.yaml` 注释 ‘- --port=0’

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5nbG9uZ180NDQ0_size_16_color_FFFFFF_t_70 1]

1.  重启服务

systemctl restart kubelet.service

1.  重新检查

[root@master01 manifests]# kubectl get cs
    Warning: v1 ComponentStatus is deprecated in v1.19+
    NAME                 STATUS    MESSAGE                         ERROR
    scheduler            Healthy   ok
    controller-manager   Healthy   ok
    etcd-0               Healthy   { "health":"true","reason":""}

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5nbG9uZ180NDQ0_size_16_color_FFFFFF_t_70 1]: /images/20220829/5f4b5087c4da4a58953ea66e357439ca.png