{"id":88771,"date":"2026-08-01T18:32:53","date_gmt":"2026-08-01T10:32:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/88771.html"},"modified":"2026-08-01T18:32:53","modified_gmt":"2026-08-01T10:32:53","slug":"k8s%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%94%b1%e4%ba%8e%e6%9c%ba%e6%88%bf%e7%bb%b4%e6%8a%a4%ef%bc%8c%e5%85%b3%e6%9c%ba%e5%90%8e%e5%90%af%e5%8a%a8%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/88771.html","title":{"rendered":"K8s\u670d\u52a1\u5668\u7531\u4e8e\u673a\u623f\u7ef4\u62a4\uff0c\u5173\u673a\u540e\u542f\u52a8\u95ee\u9898"},"content":{"rendered":"

\u4e00\u3001\u80cc\u666f<\/h2>\n

\u670d\u52a1\u5668\u7531\u4e8e\u5347\u7ea7\u539f\u56e0，\u4e34\u65f6\u65ad\u7535，\u65ad\u7535\u524d\u624b\u52a8\u505c\u6b62\u7a0b\u5e8f\u5e76\u624b\u52a8\u5173\u673a（k8s\u73af\u5883\u6ca1\u6709\u7406\u4f1a）\u3002\u6062\u590d\u4f9b\u7535\u540e，\u95ee\u9898\u5904\u7406.
\n\u73af\u5883: centos7 docker k8s
\n[root@wdy01 ~]# kubectl get node
\nE0727 13:54:51.638488 160568 memcache.go:265] couldn\u2019t get current server API group list: Get \u201chttps:\/\/10.1.1.1:6443\/api?timeout=32s\u201d: dial tcp 10.1.1.1:6443: connect: connection refused
\nE0727 13:54:51.638859 160568 memcache.go:265] couldn\u2019t get current server API group list: Get \u201chttps:\/\/10.1.1.1:6443\/api?timeout=32s\u201d: dial tcp 10.1.1.1:6443: connect: connection refused
\nE0727 13:54:51.640220 160568 memcache.go:265] couldn\u2019t get current server API group list: Get \u201chttps:\/\/10.1.1.1:6443\/api?timeout=32s\u201d: dial tcp 10.1.1.1:6443: connect: connection refused
\nE0727 13:54:51.641583 160568 memcache.go:265] couldn\u2019t get current server API group list: Get \u201chttps:\/\/10.1.1.1:6443\/api?timeout=32s\u201d: dial tcp 10.1.1.1:6443: connect: connection refused
\nE0727 13:54:51.642889 160568 memcache.go:265] couldn\u2019t get current server API group list: Get \u201chttps:\/\/10.1.1.1:6443\/api?timeout=32s\u201d: dial tcp 10.1.1.1:6443: connect: connection refused
\nThe connection to the server 10.1.1.1:6443 was refused – did you specify the right host or port?
\n[root@wdy01 ~]#<\/p>\n

\u4e8c\u3001\u89e3\u51b3\u8fc7\u7a0b<\/h2>\n

2.1 \u5148\u68c0\u67e5\u96c6\u7fa4\u6709\u6548\u671f，\u53d1\u73b0\u6b63\u5e38<\/h3>\n

[root@wdy01 ~]<\/span># kubeadm certs check-expiration<\/span>
\n[check-expiration]<\/span> Reading configuration from<\/span> the cluster.<\/span>.<\/span>.<\/span>
\n[check-expiration]<\/span> FYI: You can look at this config file with 'kubectl -n kube-system get cm kubeadm-config -o yaml'<\/span>
\n[check-expiration]<\/span> Error reading configuration from<\/span> the Cluster.<\/span> Falling back to default configuration<\/p>\n

CERTIFICATE EXPIRES RESIDUAL TIME CERTIFICATE AUTHORITY EXTERNALLY MANAGED
\nadmin.<\/span>conf Jul 07,<\/span> 2027 00:21 UTC 344d ca no
\napiserver Jul 07,<\/span> 2027 00:21 UTC 344d ca no
\napiserver-etcd-client Jul 07,<\/span> 2027 00:21 UTC 344d etcd-ca no
\napiserver-kubelet-client Jul 07,<\/span> 2027 00:21 UTC 344d ca no
\ncontroller-manager.<\/span>conf Jul 07,<\/span> 2027 00:21 UTC 344d ca no
\netcd-healthcheck-client Jul 07,<\/span> 2027 00:21 UTC 344d etcd-ca no
\netcd-peer Jul 07,<\/span> 2027 00:21 UTC 344d etcd-ca no
\netcd-server Jul 07,<\/span> 2027 00:21 UTC 344d etcd-ca no
\nfront-proxy-client Jul 07,<\/span> 2027 00:21 UTC 344d front-proxy-ca no
\nscheduler.<\/span>conf Jul 07,<\/span> 2027 00:21 UTC 344d ca no <\/p>\n

CERTIFICATE AUTHORITY EXPIRES RESIDUAL TIME EXTERNALLY MANAGED
\nca Jul 02,<\/span> 2035 01:45 UTC 8y no
\netcd-ca Jul 02,<\/span> 2035 01:45 UTC 8y no
\nfront-proxy-ca Jul 02,<\/span> 2035 01:45 UTC 8y no <\/p>\n

2.2 \u67e5\u770bkubelet\u65e5\u5fd7<\/h3>\n

Jul 27<\/span> 14<\/span>:22:56 wdy01 systemd[<\/span>1<\/span>]<\/span>: kubelet.service holdoff time<\/span> over, scheduling restart.
\nJul 27<\/span> 14<\/span>:22:56 wdy01 systemd[<\/span>1<\/span>]<\/span>: Stopped kubelet: The Kubernetes Node Agent.
\nJul 27<\/span> 14<\/span>:22:56 wdy01 systemd[<\/span>1<\/span>]<\/span>: Started kubelet: The Kubernetes Node Agent.
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: Flag –container-runtime-endpoint has been deprecated, This parameter should be set<\/span> via the config file<\/span> specified by the Kubelet's –config<\/span> flag. See https:\/\/kubernetes.io\/docs\/tasks\/administer-cluster\/kubelet-config-file\/ for<\/span> more<\/span> information.
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: Flag –pod-infra-container-image has been deprecated, will be removed in<\/span> a future release. Image garbage collector will get sandbox image information from CRI.
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: I0727 14<\/span>:22:56.600080 237447<\/span> server.go:203]<\/span> "–pod-infra-container-image will not be pruned by the image garbage collector in kubelet and should also be set in the remote runtime"<\/span>
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: I0727 14<\/span>:22:56.605137 237447<\/span> server.go:467]<\/span> "Kubelet version"<\/span> kubeletVersion<\/span>=<\/span>"v1.2x.2"<\/span>
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: I0727 14<\/span>:22:56.605175 237447<\/span> server.go:469]<\/span> "Golang settings"<\/span> GOGC<\/span>=<\/span>""<\/span> GOMAXPROCS<\/span>=<\/span>""<\/span> GOTRACEBACK<\/span>=<\/span>""<\/span>
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: I0727 14<\/span>:22:56.606111 237447<\/span> server.go:895]<\/span> "Client rotation is on, will bootstrap in background"<\/span>
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: I0727 14<\/span>:22:56.607831 237447<\/span> certificate_store.go:130]<\/span> Loading cert\/key pair from "\/var\/lib\/kubelet\/pki\/kubelet-client-current.pem"<\/span>.<\/span>
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: I0727 14<\/span>:22:56.608791 237447<\/span> dynamic_cafile_content.go:157]<\/span> "Starting controller"<\/span> name<\/span>=<\/span>"client-ca-bundle::\/etc\/kubernetes\/pki\/ca.crt"<\/span>
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: W0727 14<\/span>:22:56.609247 237447<\/span> logging.go:59]<\/span> [<\/span>core]<\/span> [<\/span>Channel #1 SubChannel #2] grpc: addrConn.createTransport failed to connect to {<\/span>
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: "Addr"<\/span>:<\/span> "\/var\/run\/cri-dockerd.sock"<\/span>,
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: "ServerName"<\/span>:<\/span> "\/var\/run\/cri-dockerd.sock"<\/span>,
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: "Attributes"<\/span>:<\/span> null,
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: "BalancerAttributes"<\/span>:<\/span> null,
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: "Type"<\/span>:<\/span> 0<\/span>,
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: "Metadata"<\/span>:<\/span> null
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: }<\/span>. Err: connection error: desc =<\/span> "transport: Error while dialing: dial unix \/var\/run\/cri-dockerd.sock: connect: connection refused"<\/span>
\nJul 27<\/span> 14<\/span>:22:56 wdy01 kubelet[<\/span>237447<\/span>]<\/span>: E0727 14<\/span>:22:56.610057 237447<\/span> run.go:74]<\/span> "command failed"<\/span> err<\/span>=<\/span>"failed to run Kubelet: validate service connection: validate CRI v1 runtime API for endpoint \\\\"<\/span>unix:\/\/\/var\/run\/cri-dockerd.sock\\\\"<\/span>: rpc error: code = Unavailable desc = connection error: desc = \\\\"<\/span>transport: Error while dialing: dial unix \/var\/run\/cri-dockerd.sock: connect: connection refused\\\\"<\/span>"<\/span>
\nJul 27<\/span> 14<\/span>:22:56 wdy01 systemd[<\/span>1<\/span>]<\/span>: kubelet.service: main process exited, code<\/span>=<\/span>exited, status<\/span>=<\/span>1<\/span>\/FAILURE
\nJul 27<\/span> 14<\/span>:22:56 wdy01 systemd[<\/span>1<\/span>]<\/span>: Unit kubelet.service entered failed state.
\nJul 27<\/span> 14<\/span>:22:56 wdy01 systemd[<\/span>1<\/span>]<\/span>: kubelet.service failed.<\/p>\n

\u5982\u4e0a\u65e5\u5fd7：\u53d1\u73b0kubelet \u542f\u52a8\u5931\u8d25\u6838\u5fc3\u539f\u56e0：
\ndial unix \/var\/run\/cri-dockerd.sock: connect: connection refused
\ncri-dockerd \u670d\u52a1\u6ca1\u542f\u52a8 \/ \u672a\u5b89\u88c5，kubelet \u65e0\u6cd5\u5bf9\u63a5 Docker \u7684 CRI \u63a5\u53e3，\u76f4\u63a5\u5d29\u6e83\u9000\u51fa<\/p>\n

2.3 \u89e3\u51b3<\/h3>\n

1）\u67e5\u770b\u670d\u52a1\u72b6\u6001<\/h4>\n

systemctl status cri-dockerd<\/p>\n

2）\u67e5\u770b\u5957\u63a5\u5b57\u6587\u4ef6\u662f\u5426\u5b58\u5728<\/h4>\n

ls -l \/var\/run\/cri-dockerd.sock<\/p>\n

3）\u53d1\u73b0\u65ad\u7535\u91cd\u542f\u540e，cri-dockerd\u670d\u52a1\u4e22\u5931\u4e86<\/h4>\n

\u6211\u4e0b\u8f7d\u8fc7 cri-dockerd-0.3.14-3.el7.x86_64.rpm，\u6267\u884crpm -ivh cri-dockerd-0.3.14-3.el7.x86_64.rpm\u5b89\u88c5\u3002<\/p>\n

4）\u91cd\u542f\u5e76\u786e\u8ba4<\/h4>\n

systemctl daemon-reload
\n# \u5f00\u673a\u81ea\u542f\u5e76\u542f\u52a8<\/span>
\nsystemctl enable<\/span> –now<\/span> cri-docker
\n# \u67e5\u770b\u72b6\u6001\u786e\u8ba4running<\/span>
\nsystemctl status cri-docker
\n# \u68c0\u67e5socket\u6587\u4ef6\u662f\u5426\u751f\u6210<\/span>
\nls<\/span> \/var\/run\/cri-dockerd.sock<\/p>\n

5）\u91cd\u542f\u5e76\u786e\u8ba4<\/h4>\n

\u4fee\u590d kubelet \u914d\u7f6e，\u6d88\u9664 cri-dockerd.sock \u8fde\u63a5\u62d2\u7edd\u62a5\u9519<\/p>\n

vi<\/span> \/var\/lib\/kubelet\/config.yaml<\/p>\n

\u8ffd\u52a0\u4e00\u884c（\u6ca1\u6709\u5c31\u52a0，\u6709\u5c31\u786e\u8ba4\u4e00\u81f4）：<\/p>\n

containerRuntimeEndpoint: unix:\/\/\/var\/run\/cri-dockerd.sock
\n\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

6) \u91cd\u542fkubelet<\/h4>\n
  • \u91cd\u542fkubelet<\/li>\n

    systemctl daemon-reload
    \nsystemctl restart kubelet
    \n# \u5b9e\u65f6\u89c2\u5bdf\u65e5\u5fd7<\/span>
    \njournalctl -u<\/span> kubelet -f<\/span><\/p>\n

  • \u5982\u6709\u5fc5\u8981，\u91cd\u542fkube-apiserver\u3001kube-controller-manage\u3001kube-scheduler<\/li>\n

    # \u5982\u679c\u662fdocker\u4f5c\u4e3a\u5bb9\u5668\u7684\u8bdd，\u53ef\u6267\u884c\u5982\u4e0b\u547d\u4ee4\u3002\u5176\u4f59\u5bb9\u5668\u65b9\u6cd5\u7c7b\u4f3c<\/span>
    \ndocker<\/span> ps<\/span> |<\/span>grep<\/span> kube-apiserver|<\/span>grep<\/span> -v<\/span> pause|<\/span>awk<\/span> '{print $1}'<\/span>|<\/span>xargs<\/span> -i<\/span> docker<\/span> restart {<\/span>}<\/span>
    \ndocker<\/span> ps<\/span> |<\/span>grep<\/span> kube-controller-manage|<\/span>grep<\/span> -v<\/span> pause|<\/span>awk<\/span> '{print $1}'<\/span>|<\/span>xargs<\/span> -i<\/span> docker<\/span> restart {<\/span>}<\/span>
    \ndocker<\/span> ps<\/span> |<\/span>grep<\/span> kube-scheduler|<\/span>grep<\/span> -v<\/span> pause|<\/span>awk<\/span> '{print $1}'<\/span>|<\/span>xargs<\/span> -i<\/span> docker<\/span> restart {<\/span>}<\/span><\/p>\n

    \u4e09\u3001\u8865\u5145<\/h2>\n

    \u8865\u51451：\u6839\u636e\u5b9e\u9645\u60c5\u51b5，docker\u5fc5\u987b\u4fdd\u969c\u6b63\u5e38\u3002
    \nsystemctl restart docker
    \nsystemctl enable docker<\/p>\n

    \u8865\u51452：\u5982\u542f\u52a8\u540e\u53d1\u73b0，worker\u8282\u70b9\u4e5f\u6ca1\u6709\u6b63\u5e38ready，\u5219worker\u8282\u70b9\u4e5f\u9700\u8981\u6392\u67e5\u5e76\u5b89\u88c5cri-dockerd\u3002<\/p>\n

    \u56db\u3001\u7ed3\u679c<\/h2>\n

    \u5982\u4e0b\u56fe，\u6267\u884ckubectl get nodes\u67e5\u770b\u96c6\u7fa4\u72b6\u6001\u5df2\u6b63\u5e38\u3002
    \n\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    \u4e94\u3001\u65b0\u95ee\u9898<\/h2>\n

    \u540e\u7aef\u7a0b\u5e8f\u94fe\u63a5nacos\u62a5\u9519：java.net.NoRouteToHostException: No route to host (Host unreachable)
    \n\u6d4b\u8bd5\u53d1\u73b0，\u5bbf\u4e3b\u673aworker\u662f\u53ef\u4ee5\u8fde\u901a01\u90e8\u7f72\u7684nacos\u7684\u3002\u4f46\u7a0b\u5e8fpod\u5185\u4e0d\u901a\u3002\u5173\u95ed\u9632\u706b\u5899\u4e5f\u4e0d\u884c\u3002
    \n\u6700\u540e\u53d1\u73b0：02 \u8282\u70b9\u4e0a docker\/flannel \u6b8b\u7559 iptables nat \u89c4\u5219 \u62e6\u622a\u4e86 Pod \u8bbf\u95ee\u5bbf\u4e3b\u673a\u7f51\u6bb5\u7684\u56de\u5305，\u6e05\u7a7a iptables \u540e\u7acb\u523b\u6062\u590d\u8fde\u901a\u3002
    \n\u6700\u540e\u662f\u572802 \u6e05\u7a7a\u6240\u6709 iptables \u89c4\u5219（nat+filter） \u89e3\u51b3\u7684\u3002<\/p>\n

    # \u6e05\u7a7a\u8fc7\u6ee4\u94fe<\/span>
    \niptables -F<\/span>
    \n# \u6e05\u7a7anat\u8f6c\u53d1\u94fe（\u5173\u952e）<\/span>
    \niptables -t<\/span> nat -F<\/span>
    \n# \u8bbe\u7f6e\u9ed8\u8ba4\u8f6c\u53d1\u5141\u8bb8<\/span>
    \niptables -P<\/span> FORWARD ACCEPT<\/p>\n

    END<\/h2>\n","protected":false},"excerpt":{"rendered":"

    \u4e00\u3001\u80cc\u666f
    \n\u670d\u52a1\u5668\u7531\u4e8e\u5347\u7ea7\u539f\u56e0，\u4e34\u65f6\u65ad\u7535，\u65ad\u7535\u524d\u624b\u52a8\u505c\u6b62\u7a0b\u5e8f\u5e76\u624b\u52a8\u5173\u673a（k8s\u73af\u5883\u6ca1\u6709\u7406\u4f1a）\u3002\u6062\u590d\u4f9b\u7535\u540e，\u95ee\u9898\u5904\u7406.
    \n\u73af\u5883: centos7 docker k8s
    \n[rootwdy01 ~]# kubectl get node
    \nE0727 13:54:51.638488 160568 memcache.go:265] couldn\u2019t get current server API group list: G<\/p>\n","protected":false},"author":2,"featured_media":88769,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[120,121,43],"topic":[],"class_list":["post-88771","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-kubernetes","tag-121","tag-43"],"yoast_head":"\nK8s\u670d\u52a1\u5668\u7531\u4e8e\u673a\u623f\u7ef4\u62a4\uff0c\u5173\u673a\u540e\u542f\u52a8\u95ee\u9898 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/88771.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"K8s\u670d\u52a1\u5668\u7531\u4e8e\u673a\u623f\u7ef4\u62a4\uff0c\u5173\u673a\u540e\u542f\u52a8\u95ee\u9898 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u4e00\u3001\u80cc\u666f \u670d\u52a1\u5668\u7531\u4e8e\u5347\u7ea7\u539f\u56e0，\u4e34\u65f6\u65ad\u7535，\u65ad\u7535\u524d\u624b\u52a8\u505c\u6b62\u7a0b\u5e8f\u5e76\u624b\u52a8\u5173\u673a（k8s\u73af\u5883\u6ca1\u6709\u7406\u4f1a）\u3002\u6062\u590d\u4f9b\u7535\u540e，\u95ee\u9898\u5904\u7406. \u73af\u5883: centos7 docker k8s [rootwdy01 ~]# kubectl get node E0727 13:54:51.638488 160568 memcache.go:265] couldn\u2019t get current server API group list: G\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/88771.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-01T10:32:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260801103252-6a6dcb5427fd4.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/88771.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/88771.html\",\"name\":\"K8s\u670d\u52a1\u5668\u7531\u4e8e\u673a\u623f\u7ef4\u62a4\uff0c\u5173\u673a\u540e\u542f\u52a8\u95ee\u9898 - 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