{"id":98150,"date":"2026-08-31T08:56:48","date_gmt":"2026-08-31T00:56:48","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/98150.html"},"modified":"2026-08-31T08:56:48","modified_gmt":"2026-08-31T00:56:48","slug":"k8s%e7%94%9f%e4%ba%a7%e9%9b%86%e7%be%a4%e6%95%85%e9%9a%9c%e5%ba%94%e6%80%a5%e5%a4%84%e7%bd%ae%e5%ae%9e%e6%88%98%ef%bc%9a%e8%8a%82%e7%82%b9notready%e3%80%81pod%e9%9b%aa%e5%b4%a9%e4%b8%8e%e8%b5%84","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/98150.html","title":{"rendered":"K8s\u751f\u4ea7\u96c6\u7fa4\u6545\u969c\u5e94\u6025\u5904\u7f6e\u5b9e\u6218\uff1a\u8282\u70b9NotReady\u3001Pod\u96ea\u5d29\u4e0e\u8d44\u6e90\u8017\u5c3d\u7684\u73b0\u573a\u6392\u67e5\u590d\u76d8"},"content":{"rendered":"

\u5144\u5f1f\u4eec，\u4eca\u5929\u590d\u76d8\u4e00\u4e2aK8s\u751f\u4ea7\u96c6\u7fa4\u7684\u4e25\u91cd\u6545\u969c\u3002<\/p>\n

\u6545\u969c\u73b0\u8c61\u975e\u5e38\u5178\u578b\u4e14\u81f4\u547d：\u96c6\u7fa4\u591a\u4e2a\u8282\u70b9\u72b6\u6001\u7a81\u53d8\u4e3a NotReady，\u6838\u5fc3\u4e1a\u52a1Pod\u5927\u9762\u79ef\u9677\u5165 CrashLoopBackOff，Service\u5c42\u76f4\u63a5\u7206\u51fa\u5927\u91cf502\u9519\u8bef，\u6574\u4e2a\u96c6\u7fa4\u5904\u4e8e\u534a\u762b\u75ea\u72b6\u6001，\u4e1a\u52a1\u5b8c\u5168\u4e0d\u53ef\u7528\u3002<\/p>\n

\u9762\u5bf9\u8fd9\u79cd\u96c6\u7fa4\u7ea7\u6545\u969c，\u6700\u8003\u9a8cSRE\u548c\u8fd0\u7ef4\u7684\u5fc3\u7406\u7d20\u8d28\u3002\u4eca\u5929\u5c31\u628a\u8fd9\u6b21\u771f\u5b9e\u6545\u969c\u7684\u6392\u67e5\u548c\u5904\u7f6e\u8fc7\u7a0b\u62c6\u89e3\u4e00\u4e0b，\u5168\u662f\u73b0\u573a\u5b9e\u64cd\u7684\u8840\u6cea\u7ecf\u9a8c，\u5e0c\u671b\u80fd\u5e2e\u5927\u5bb6\u5728\u9047\u5230\u7c7b\u4f3c\u60c5\u51b5\u65f6，\u80fd\u7a33\u4f4f\u9635\u811a，\u5feb\u901f\u6062\u590d\u3002<\/p>\n

🚨 \u6545\u969c\u521d\u671f\u201c\u56db\u4e0d\u8981\u201d\u7ea2\u7ebf（\u4fdd\u547d\u5fc5\u770b）：<\/p>\n

  • \u4e0d\u8981\u76f2\u76ee\u91cd\u542f\u6240\u6709\u8282\u70b9：\u8fd9\u4f1a\u5bfc\u81f4\u8c03\u5ea6\u96ea\u5d29，\u539f\u672c\u8fd8\u80fd\u8dd1\u7684Pod\u5168\u88ab\u6324\u5230\u574f\u8282\u70b9\u4e0a，\u76f4\u63a5\u5168\u519b\u8986\u6ca1\u3002<\/li>\n
  • \u4e0d\u8981\u76f4\u63a5 delete \u5927\u91cfPod：\u5220\u4e86Pod\u5c31\u4e22\u5931\u4e86\u73b0\u573a\u65e5\u5fd7\u548c\u6392\u67e5\u7ebf\u7d22，\u800c\u4e14\u91cd\u5efa\u53ef\u80fd\u4f9d\u7136\u5931\u8d25\u3002<\/li>\n
  • \u4e0d\u8981\u5728\u672a\u6392\u67e5\u524d\u5347\u7ea7\u96c6\u7fa4\u7248\u672c：\u6545\u969c\u671f\u95f4\u505a\u53d8\u66f4，\u7b49\u4e8e\u8499\u7740\u773c\u775b\u5f00\u9ad8\u901f，\u51fa\u4e86\u4e8b\u4f60\u90fd\u4e0d\u77e5\u9053\u662f\u539f\u6545\u969c\u8fd8\u662f\u5347\u7ea7\u5f15\u8d77\u7684\u3002<\/li>\n
  • \u4e0d\u8981\u968f\u610f\u4fee\u6539kubelet\u914d\u7f6e：\u6539\u9519\u4e86\u76f4\u63a5\u5bfc\u81f4\u8282\u70b9\u5f7b\u5e95\u5931\u8054，\u8fdeSSH\u8fdb\u53bb\u6551\u7684\u673a\u4f1a\u90fd\u6ca1\u6709\u3002<\/li>\n
    \n

    \u4e00\u3001 \u5b8c\u6574\u5e94\u6025\u5904\u7f6eSOP：\u5148\u7a33\u4f4f，\u518d\u62a2\u6551<\/h3>\n

    \u9047\u5230\u5927\u6545\u969c，\u5343\u4e07\u522b\u4e00\u4e0a\u6765\u5c31\u60f3\u7740\u201c\u600e\u4e48\u628a\u4ee3\u7801\u4fee\u597d\u201d\u6216\u8005\u201c\u600e\u4e48\u628a\u8282\u70b9\u91cd\u542f\u201d，\u53e3\u8bc0\u662f：\u5148\u7a33\u4f4f\u96c6\u7fa4，\u518d\u62a2\u6551\u4e1a\u52a1\u3002<\/p>\n

    \u5b8c\u6574\u6d41\u7a0b\u5982\u4e0b：<\/p>\n

  • \u6545\u969c\u5b9a\u7ea7：\u62c9\u7fa4\u3001\u901a\u62a5，\u660e\u786e\u5f53\u524d\u5f71\u54cd\u9762\u3002<\/li>\n
  • \u96c6\u7fa4\u5065\u5eb7\u5ea6\u5feb\u901f\u6478\u5e95：\u770b\u76d1\u63a7\u5927\u76d8，\u786e\u8ba4\u662f\u5355\u70b9\u95ee\u9898\u8fd8\u662f\u5168\u5c40\u95ee\u9898\u3002<\/li>\n
  • \u63a7\u5236\u9762\u72b6\u6001\u786e\u8ba4：\u786e\u8ba4apiserver\u3001etcd\u662f\u5426\u6b63\u5e38\u3002<\/li>\n
  • \u8282\u70b9\u5c42\u6392\u67e5：\u627e\u51faNotReady\u7684\u8282\u70b9，\u770b\u662f\u6b7b\u673a\u8fd8\u662f\u7ec4\u4ef6\u6302\u4e86\u3002<\/li>\n
  • Pod\/\u5bb9\u5668\u5c42\u6392\u67e5：\u770b\u4e1a\u52a1Pod\u4e3a\u4ec0\u4e48\u8d77\u4e0d\u6765\u3002<\/li>\n
  • \u7f51\u7edc\u4e0e\u5b58\u50a8\u5c42\u6392\u67e5：\u6392\u67e5CNI\u3001CoreDNS\u3001PV\/PVC\u3002<\/li>\n
  • \u4e1a\u52a1\u6062\u590d：\u9694\u79bb\u6545\u969c\u70b9，\u5feb\u901f\u6062\u590d\u6838\u5fc3\u94fe\u8def\u3002<\/li>\n
  • \u6839\u56e0\u5b9a\u4f4d：\u627e\u80cc\u9505\u4fa0\u3002<\/li>\n
  • \u590d\u76d8\u52a0\u56fa：\u64e6\u5c41\u80a1，\u9632\u6b62\u4e8c\u6b21\u7ffb\u8f66\u3002<\/li>\n
    \n

    \u4e8c\u3001 \u63a7\u5236\u9762\u4e0e\u8282\u70b9\u6392\u67e5：\u6478\u6e05\u5e95\u724c<\/h3>\n

    \u8282\u70b9 NotReady \u662f\u8868\u8c61，\u80cc\u540e\u53ef\u80fd\u662fkubelet\u6302\u4e86\u3001\u7f51\u7edc\u65ad\u4e86\u6216\u8005\u8d44\u6e90\u8017\u5c3d\u4e86\u3002<\/p>\n

    1. \u5feb\u901f\u67e5\u770b\u96c6\u7fa4\u4e0e\u8282\u70b9\u72b6\u6001<\/h4>\n

    # \u67e5\u770b\u8282\u70b9\u72b6\u6001，\u627e\u51faNotReady\u7684\u8282\u70b9<\/span>
    \nkubectl get nodes -o<\/span> wide<\/p>\n

    # \u67e5\u770b\u5f02\u5e38\u8282\u70b9\u7684\u8be6\u7ec6\u4e8b\u4ef6（\u91cd\u70b9\u770b Conditions \u548c Events）<\/span>
    \nkubectl describe node<\/span> <<\/span>node-name><\/span><\/p>\n

    # \u67e5\u770b\u63a7\u5236\u9762\u7ec4\u4ef6\u72b6\u6001（apiserver, scheduler, controller-manager）<\/span>
    \nkubectl get pods -n<\/span> kube-system -o<\/span> wide<\/p>\n

    2. \u8282\u70b9\u5c42\u6df1\u5ea6\u6392\u67e5（\u4e0aSSH）<\/h4>\n

    \u767b\u5f55\u5230 NotReady \u7684\u8282\u70b9，\u6309\u4ee5\u4e0b\u987a\u5e8f\u6392\u67e5：<\/p>\n

    # 1. \u67e5kubelet\u72b6\u6001\u548c\u65e5\u5fd7（\u6700\u5e38\u89c1\u7684\u80cc\u9505\u4fa0）<\/span>
    \nsystemctl status kubelet
    \njournalctl -u<\/span> kubelet -f<\/span> –since<\/span> "1 hour ago"<\/span> |<\/span> grep<\/span> -iE<\/span> "error|fail|panic"<\/span><\/p>\n

    # 2. \u67e5\u5bb9\u5668\u8fd0\u884c\u65f6\u72b6\u6001（containerd\/docker）<\/span>
    \nsystemctl status containerd
    \ncrictl info
    \ncrictl ps<\/span> -a<\/span> |<\/span> grep<\/span> -v<\/span> Running<\/p>\n

    # 3. \u67e5\u8282\u70b9\u8d44\u6e90\u5360\u7528（\u91cd\u70b9\u770b\u78c1\u76d8\u548cinode！）<\/span>
    \ntop<\/span> -c<\/span>
    \ndf<\/span> -h<\/span> # \u770b\u78c1\u76d8\u7a7a\u95f4，\u7279\u522b\u662f \/var\/lib\/kubelet \u548c \/var\/lib\/containerd<\/span>
    \ndf<\/span> -i<\/span> # \u770binode\u4f7f\u7528\u7387，inode\u8017\u5c3d\u4e5f\u4f1a\u5bfc\u81f4kubelet\u505c\u6446！<\/span><\/p>\n

    # 4. etcd \u5065\u5eb7\u68c0\u67e5<\/span>
    \n# \u5982\u679c\u662fkubeadm\u90e8\u7f72\u7684，\u53ef\u4ee5\u76f4\u63a5\u7528kubectl\u67e5<\/span>
    \nkubectl get –raw<\/span> \/healthz\/etcd
    \n# \u6216\u8005\u8fdbetcd\u5bb9\u5668\u67e5<\/span>
    \nkubectl exec<\/span> -it<\/span> etcd-master -n<\/span> kube-system — etcdctl endpoint health –endpoints<\/span>=<\/span>https:\/\/127.0.0.1:2379<\/p>\n

    💡 \u5e38\u89c1\u8282\u70b9\u6545\u969c\u6a21\u5f0f：<\/p>\n

      \n
    • \u78c1\u76d8\u6ee1\/Inode\u6ee1：\u5bb9\u5668\u65e5\u5fd7\u6ca1\u8f6e\u8f6c，\u6216\u8005\u67d0\u4e2a\u4e1a\u52a1\u75af\u72c2\u5199\u4e34\u65f6\u6587\u4ef6\u3002<\/li>\n
    • OOM：\u8282\u70b9\u7269\u7406\u5185\u5b58\u8017\u5c3d，\u89e6\u53d1\u5185\u6838OOM Killer，\u628akubelet\u6216\u5bb9\u5668\u8fd0\u884c\u65f6\u6740\u4e86\u3002<\/li>\n
    • \u5185\u6838Panic\/\u6b7b\u673a：\u786c\u4ef6\u95ee\u9898\u6216\u5185\u6838Bug，\u53ea\u80fd\u786c\u91cd\u542f\u3002<\/li>\n
    • \u8bc1\u4e66\u8fc7\u671f：\u7ecf\u5178\u8001\u756a，1\u5e74\u671f\u6ee1，apiserver\u6216kubelet\u8bc1\u4e66\u8fc7\u671f，\u8282\u70b9\u76f4\u63a5\u5931\u8054\u3002<\/li>\n<\/ul>\n
      \n

      \u4e09\u3001 Pod\u4e0e\u5de5\u4f5c\u8d1f\u8f7d\u6392\u67e5：\u5b9a\u4f4d\u4e1a\u52a1\u6b7b\u56e0<\/h3>\n

      \u8282\u70b9\u6ca1\u95ee\u9898，\u4f46Pod\u5c31\u662f\u8d77\u4e0d\u6765，\u6216\u8005\u75af\u72c2\u91cd\u542f\u3002<\/p>\n

      1. \u5feb\u901f\u5b9a\u4f4d\u5f02\u5e38Pod<\/h4>\n

      # \u6309\u547d\u540d\u7a7a\u95f4\u5217\u51fa\u975eRunning\u72b6\u6001\u7684Pod<\/span>
      \nkubectl get pods -n<\/span> <<\/span>namespace><\/span> |<\/span> grep<\/span> -v<\/span> Running<\/p>\n

      # \u67e5\u770bPod\u8be6\u7ec6\u4e8b\u4ef6\u548c\u9000\u51fa\u7801（\u91cd\u70b9\u770b Last State \u548c Events）<\/span>
      \nkubectl describe pod <<\/span>pod-name><\/span> -n<\/span> <<\/span>namespace><\/span><\/p>\n

      # \u67e5\u770b\u5bb9\u5668\u65e5\u5fd7（\u6ce8\u610f：\u4e00\u5b9a\u8981\u52a0 –previous \u770b\u4e0a\u4e00\u6b21\u5d29\u6e83\u524d\u7684\u65e5\u5fd7！）<\/span>
      \nkubectl logs <<\/span>pod-name><\/span> -n<\/span> <<\/span>namespace><\/span> –previous<\/span> –tail<\/span>=<\/span>100<\/span><\/p>\n

      # \u67e5\u770bDeployment\u6eda\u52a8\u72b6\u6001，\u770b\u662f\u4e0d\u662f\u5361\u4f4f\u4e86<\/span>
      \nkubectl rollout status deployment\/<<\/span>deployment-name><\/span> -n<\/span> <<\/span>namespace><\/span><\/p>\n

      # \u6309\u65f6\u95f4\u6392\u5e8f\u67e5\u770b\u547d\u540d\u7a7a\u95f4Events，\u627e\u6700\u65b0\u62a5\u9519<\/span>
      \nkubectl get events -n<\/span> <<\/span>namespace><\/span> –sort-by=<\/span>'.lastTimestamp'<\/span> |<\/span> tail<\/span> -n<\/span> 20<\/span><\/p>\n

      2. \u5e38\u89c1\u5f02\u5e38\u72b6\u6001\u7684\u771f\u5b9e\u542b\u4e49<\/h4>\n

      \u522b\u53ea\u770b\u5b57\u9762\u610f\u601d，\u8981\u61c2\u80cc\u540e\u7684\u903b\u8f91：<\/p>\n

        \n
      • CrashLoopBackOff：\u5bb9\u5668\u542f\u52a8\u540e\u7acb\u523b\u9000\u51fa，\u6216\u8005\u63a2\u9488\u4e00\u76f4\u5931\u8d25\u3002K8s\u5728\u5c1d\u8bd5\u91cd\u542f\u5b83，\u4f46\u95f4\u9694\u65f6\u95f4\u8d8a\u6765\u8d8a\u957f\u3002\u771f\u76f8：\u901a\u5e38\u662f\u4ee3\u7801\u6709Bug\u542f\u52a8\u62a5\u9519\u3001\u914d\u7f6e\u6587\u4ef6\u6302\u8f7d\u9519\u4e86\u3001\u6216\u8005\u6570\u636e\u5e93\u8fde\u4e0d\u4e0a\u3002<\/li>\n
      • OOMKilled：\u5bb9\u5668\u5185\u5b58\u8d85\u9650\u88ab\u7cfb\u7edfKill\u3002\u771f\u76f8：\u4e0d\u4e00\u5b9a\u662f\u4ee3\u7801\u5185\u5b58\u6cc4\u6f0f！\u5f88\u53ef\u80fd\u662f resources.limits.memory \u8bbe\u5f97\u592a\u62a0，\u6216\u8005Java\u5e94\u7528\u6ca1\u914d\u597dJVM\u53c2\u6570（\u6ca1\u8bc6\u522b\u5230\u5bb9\u5668\u5185\u5b58\u9650\u5236）\u3002<\/li>\n
      • ImagePullBackOff \/ ErrImagePull：\u955c\u50cf\u62c9\u4e0d\u5230\u3002\u771f\u76f8：\u955c\u50cfTag\u5199\u9519\u4e86\u3001Harbor\u5bc6\u7801\u53d8\u4e86\u3001\u6216\u8005\u8282\u70b9\u5230\u955c\u50cf\u4ed3\u5e93\u7684\u7f51\u7edc\u4e0d\u901a（DNS\u89e3\u6790\u5931\u8d25）\u3002<\/li>\n
      • ContainerCreating：\u4e00\u76f4\u5361\u5728\u521b\u5efa\u4e2d\u3002\u771f\u76f8：\u901a\u5e38\u662f\u5b58\u50a8\u5377（PV\/PVC）\u6302\u8f7d\u5931\u8d25，\u6216\u8005CNI\u7f51\u7edc\u63d2\u4ef6\u5206\u914dIP\u5931\u8d25\u3002<\/li>\n<\/ul>\n
        \n

        \u56db\u3001 \u7f51\u7edc\u4e0e\u5b58\u50a8\u6392\u67e5：\u6253\u901a\u4efb\u7763\u4e8c\u8109<\/h3>\n

        Pod\u8d77\u6765\u4e86，\u4f46\u662f\u4e92\u76f8\u4e0d\u901a，\u6216\u8005\u57df\u540d\u89e3\u6790\u4e0d\u4e86，\u8fd9\u65f6\u5019\u5c31\u8981\u67e5\u7f51\u7edc\u4e86\u3002<\/p>\n

        1. \u7f51\u7edc\u6392\u67e5\u4e09\u8fde<\/h4>\n

        # 1. \u67e5 Service \u548c Endpoints（\u770b\u540e\u7aef\u6709\u6ca1\u6709\u6302\u4e0aPod）<\/span>
        \nkubectl get svc <<\/span>svc-name><\/span> -n<\/span> <<\/span>namespace><\/span>
        \nkubectl get ep <<\/span>svc-name><\/span> -n<\/span> <<\/span>namespace><\/span> # \u5982\u679cENDPOINTS\u4e3a\u7a7a，\u8bf4\u660ePod\u63a2\u9488\u5931\u8d25\u6216\u6807\u7b7e\u4e0d\u5339\u914d<\/span><\/p>\n

        # 2. \u6d4b\u8bd5 CoreDNS \u89e3\u6790<\/span>
        \nkubectl exec<\/span> -it<\/span> <<\/span>pod-name><\/span> -n<\/span> <<\/span>namespace><\/span> — nslookup<\/span> kubernetes.default
        \nkubectl exec<\/span> -it<\/span> <<\/span>pod-name><\/span> -n<\/span> <<\/span>namespace><\/span> — nslookup<\/span> <<\/span>your-service-name><\/span><\/p>\n

        # 3. \u67e5 NetworkPolicy（\u662f\u4e0d\u662f\u8bef\u62e6\u622a\u4e86）<\/span>
        \nkubectl get networkpolicy -A<\/span><\/p>\n

        # 4. \u67e5 kube-proxy \u548c CNI \u63d2\u4ef6\u65e5\u5fd7<\/span>
        \nkubectl logs <<\/span>kube-proxy-pod><\/span> -n<\/span> kube-system –tail<\/span>=<\/span>50<\/span>
        \nkubectl logs <<\/span>calico-node-pod><\/span> -n<\/span> kube-system –tail<\/span>=<\/span>50<\/span> # \u4ee5Calico\u4e3a\u4f8b<\/span><\/p>\n

        2. \u5b58\u50a8\u6392\u67e5<\/h4>\n

        # \u67e5\u770b PVC \u72b6\u6001，\u5982\u679c\u662f Pending \u8bf4\u660e\u5b58\u50a8\u4f9b\u5e94\u5931\u8d25<\/span>
        \nkubectl get pvc -A<\/span><\/p>\n

        # \u67e5\u770b PV \u8be6\u7ec6\u4e8b\u4ef6<\/span>
        \nkubectl describe pvc <<\/span>pvc-name><\/span> -n<\/span> <<\/span>namespace><\/span><\/p>\n

        💡 \u96c6\u7fa4\u7f51\u7edc\u6545\u969c\u5178\u578b\u8868\u73b0：<\/p>\n

          \n
        • Pod\u80fd\u8d77，\u4f46\u8de8\u8282\u70b9\u4e0d\u901a：CNI\u63d2\u4ef6（\u5982Calico\/Flannel）\u6302\u4e86，\u6216\u8005\u5e95\u5c42\u7269\u7406\u7f51\u7edc（VXLAN\/BGP）\u8def\u7531\u95ee\u9898\u3002<\/li>\n
        • \u57df\u540d\u89e3\u6790\u5931\u8d25：CoreDNS Pod\u5f02\u5e38，\u6216\u8005\u8282\u70b9\u4e0a\u7684 resolv.conf \u88ab\u7be1\u6539\u3002<\/li>\n
        • Service\u8bbf\u95ee\u4e0d\u901a：kube-proxy\u6ca1\u6b63\u5e38\u4e0b\u53d1iptables\/IPVS\u89c4\u5219，\u6216\u8005\u540e\u7aefPod\u63a2\u9488\u5168\u6302\u5bfc\u81f4Endpoints\u4e3a\u7a7a\u3002<\/li>\n<\/ul>\n

          🛠\ufe0f \u7ec8\u6781\u6740\u5668：\u5982\u679c\u4ee5\u4e0a\u547d\u4ee4\u770b\u4e0d\u51fa\u95ee\u9898，\u76f4\u63a5\u4e0a tcpdump \u6293\u5305，\u6216\u8005\u5728\u5bb9\u5668\u91cc\u7528 curl -v \u548c telnet \u6d4b\u7aef\u53e3，\u80fd\u89e3\u51b399%\u7684\u7f51\u7edc\u7384\u5b66\u95ee\u9898\u3002<\/p>\n

          \n

          \u4e94\u3001 \u4e1a\u52a1\u6062\u590d：\u5206\u7ea7\u5904\u7406，\u6b62\u8840\u4f18\u5148<\/h3>\n

          \u6545\u969c\u6392\u67e5\u6e05\u695a\u4e86，\u63a5\u4e0b\u6765\u662f\u6062\u590d\u4e1a\u52a1\u3002\u8bb0\u4f4f：\u80fd\u6458\u9664\u6545\u969c\u8282\u70b9\u5c31\u6458\u9664，\u522b\u6b7b\u78d5\u4fee\u590d，\u4e1a\u52a1\u4f18\u5148！<\/p>\n

          1. \u53ef\u5feb\u901f\u6062\u590d\u7684\u573a\u666f<\/h4>\n
            \n
          • \u4ee3\u7801\/\u914d\u7f6e\u53d8\u66f4\u5f15\u8d77\u7684\u96ea\u5d29：\u76f4\u63a5\u56de\u6eda\u3002kubectl rollout undo deployment\/<<\/span>name><\/span> -n<\/span> <<\/span>namespace><\/span>\n<\/li>\n
          • \u5355\u8282\u70b9\u6545\u969c（\u5982\u786c\u4ef6\u635f\u574f\u3001\u5185\u6838Panic）：\u76f4\u63a5\u9694\u79bb\u5e76\u9a71\u9010Pod，\u8ba9\u8c03\u5ea6\u5668\u628a\u5b83\u8c03\u5ea6\u5230\u5065\u5eb7\u8282\u70b9\u3002# \u6807\u8bb0\u8282\u70b9\u4e0d\u53ef\u8c03\u5ea6<\/span>
            \nkubectl cordon <<\/span>node-name><\/span>
            \n# \u9a71\u9010\u8282\u70b9\u4e0a\u7684Pod（\u6ce8\u610f\u52a0 –ignore-daemonsets \u548c –delete-emptydir-data）<\/span>
            \nkubectl drain <<\/span>node-name><\/span> –ignore-daemonsets –delete-emptydir-data –force<\/span><\/p>\n<\/li>\n
          • \u5355\u70b9\u8d44\u6e90\u8017\u5c3d：\u4e34\u65f6\u6269\u5bb9\u8282\u70b9，\u6216\u8005\u8c03\u6574HPA\u3002<\/li>\n<\/ul>\n

            2. \u9700\u8c28\u614e\u64cd\u4f5c\u7684\u573a\u666f<\/h4>\n
              \n
            • etcd \u6570\u636e\u635f\u574f\/\u4e22\u5931：\n
                \n
              • \u524d\u63d0：\u5fc5\u987b\u6709\u6700\u8fd1\u7684etcd\u5907\u4efd！<\/li>\n
              • \u98ce\u9669：\u6062\u590detcd\u4f1a\u4e22\u5931\u5907\u4efd\u70b9\u4e4b\u540e\u6240\u6709\u7684\u96c6\u7fa4\u72b6\u6001\u53d8\u66f4（\u6bd4\u5982\u4f60\u521a\u5efa\u7684Pod\u3001\u521a\u6539\u7684\u914d\u7f6e\u5168\u6ca1\u4e86）\u3002<\/li>\n
              • \u64cd\u4f5c：\u505c\u6389apiserver，\u4f7f\u7528 etcdctl snapshot restore \u6062\u590d\u6570\u636e，\u91cd\u542fetcd\u548capiserver\u3002\u4e0d\u5230\u4e07\u4e0d\u5f97\u5df2，\u4e0d\u8981\u8d70\u8fd9\u4e00\u6b65\u3002<\/li>\n<\/ul>\n<\/li>\n
              • \u8282\u70b9\u5e95\u5c42OS\/\u8fd0\u884c\u65f6\u5f7b\u5e95\u5d29\u6e83：\u4e0d\u8981\u5c1d\u8bd5\u53bb\u91cd\u542fkubelet\u6216containerd，\u76f4\u63a5\u8d70\u4e0a\u9762\u7684 cordon + drain \u6d41\u7a0b，\u7136\u540e\u8ba9\u5e95\u5c42IaaS\u56e2\u961f\u53bb\u91cd\u88c5\u7cfb\u7edf\u6216\u91cd\u5efa\u8282\u70b9\u3002<\/li>\n<\/ul>\n
                \n

                \u516d\u3001 \u6839\u56e0\u5206\u6790：\u627e\u80cc\u9505\u4fa0<\/h3>\n

                \u4e1a\u52a1\u6062\u590d\u4e86，\u590d\u76d8\u4e0d\u80fd\u5c11\u3002\u5e38\u89c1\u6545\u969c\u8bf1\u56e0\u53ca\u6392\u67e5\u8def\u5f84：<\/p>\n

              • \u8d44\u6e90\u8017\u5c3d（\u5185\u5b58\/\u78c1\u76d8\/inode）：\u770bPrometheus\u76d1\u63a7，\u627e\u6545\u969c\u524d5\u5206\u949f\u54ea\u4e2a\u6307\u6807\u7a81\u53d8\u3002\u67e5\u5ba1\u8ba1\u65e5\u5fd7\u770b\u662f\u54ea\u4e2a\u547d\u540d\u7a7a\u95f4\u7684Pod\u5728\u75af\u72c2\u5199\u65e5\u5fd7\u3002<\/li>\n
              • \u914d\u7f6e\u53d8\u66f4\u8bef\u64cd\u4f5c：\u67e5 apiserver \u7684 audit log（\u5ba1\u8ba1\u65e5\u5fd7），\u770b\u6545\u969c\u65f6\u95f4\u70b9\u8c01\u6267\u884c\u4e86 kubectl apply \u6216 kubectl delete\u3002<\/li>\n
              • \u8bc1\u4e66\u8fc7\u671f：\u770bkubelet\u65e5\u5fd7，\u5982\u679c\u6709 x509: certificate has expired \u5b57\u6837，\u5c31\u662f\u5b83\u4e86\u3002<\/li>\n
              • \u7f51\u7edc\u7b56\u7565\u8bef\u5220\/\u8bef\u914d：\u67e5 NetworkPolicy \u7684\u53d8\u66f4\u8bb0\u5f55\u3002<\/li>\n
              • \u955c\u50cf\u62c9\u53d6\u5931\u8d25：\u67e5\u8282\u70b9\u4e0a\u7684 crictl \u65e5\u5fd7\u6216 \/var\/log\/messages，\u770b\u662f\u4e0d\u662f Harbor \u6302\u4e86\u6216\u8005\u7f51\u7edc\u6296\u52a8\u3002<\/li>\n

                \u600e\u4e48\u627e\u6839\u56e0？
                \n\u4e0d\u8981\u62cd\u8111\u888b！\u987a\u7740 kubectl get events \u7684\u65f6\u95f4\u7ebf，\u7ed3\u5408 Grafana \u76d1\u63a7\u5927\u76d8\u7684\u6307\u6807\u7a81\u53d8，\u518d\u8f85\u4ee5 apiserver \u5ba1\u8ba1\u65e5\u5fd7，\u5f62\u6210\u8bc1\u636e\u94fe\u3002<\/p>\n

                \n

                \u4e03\u3001 \u4e8b\u540e\u52a0\u56fa：\u64e6\u5c41\u80a1\u7684\u827a\u672f<\/h3>\n

                \u6545\u969c\u5904\u7406\u5b8c，\u5982\u679c\u4e0d\u505a\u52a0\u56fa，\u4e0b\u6b21\u8fd8\u4f1a\u7ffb\u8f66\u3002<\/p>\n

              • \u8d44\u6e90\u89c4\u8303：\u5f3a\u5236\u8981\u6c42\u6240\u6709Deployment\u5fc5\u987b\u914d\u7f6e requests \u548c limits，\u901a\u8fc7 OPA\/Gatekeeper \u6216 Kyverno \u505a\u51c6\u5165\u63a7\u5236\u3002<\/li>\n
              • \u8282\u70b9\u8d44\u6e90\u9884\u7559：\u914d\u7f6e kubelet \u7684 –kube-reserved \u548c –system-reserved，\u7ed9\u7cfb\u7edf\u7ec4\u4ef6\u548cOS\u7559\u8db3\u5185\u5b58\u548cCPU，\u9632\u6b62\u88ab\u4e1a\u52a1Pod\u6324\u6b7b\u3002<\/li>\n
              • Pod\u4f18\u5148\u7ea7\u4e0e\u62a2\u5360：\u914d\u7f6e PriorityClass，\u786e\u4fdd\u6838\u5fc3\u4ea4\u6613\u94fe\u8def\u7684Pod\u5728\u8d44\u6e90\u4e0d\u8db3\u65f6\u80fd\u62a2\u5360\u975e\u6838\u5fc3\u4efb\u52a1\u7684\u8d44\u6e90\u3002<\/li>\n
              • \u76d1\u63a7\u544a\u8b66\u8865\u9f50：\u628a\u78c1\u76d8\u4f7f\u7528\u7387\u3001inode\u4f7f\u7528\u7387\u3001\u8bc1\u4e66\u8fc7\u671f\u65f6\u95f4\u3001etcd leader\u53d8\u66f4\u7b49\u6307\u6807\u52a0\u5165\u544a\u8b66，\u9608\u503c\u8c03\u5408\u7406\u3002<\/li>\n
              • etcd \u5907\u4efd\u4e0e\u6f14\u7ec3：\u5199\u4e2a\u5b9a\u65f6\u811a\u672c\u5907\u4efdetcd\u5230OSS\/S3\u3002\u6700\u91cd\u8981\u7684\u662f：\u6bcf\u4e2a\u5b63\u5ea6\u5fc5\u987b\u505a\u4e00\u6b21\u6062\u590d\u6f14\u7ec3！ \u5907\u4efd\u4e0d\u7b49\u4e8e\u80fd\u6062\u590d\u3002<\/li>\n
              • \u53d8\u66f4\u5ba1\u6279\u4e0e\u7070\u5ea6：\u751f\u4ea7\u73af\u5883\u4e25\u7981\u76f4\u63a5 kubectl apply，\u5fc5\u987b\u8d70CI\/CD\u6d41\u6c34\u7ebf，\u4e14\u6838\u5fc3\u670d\u52a1\u5fc5\u987b\u914d\u7f6e\u6eda\u52a8\u66f4\u65b0\u7b56\u7565（maxSurge \u548c maxUnavailable）\u3002<\/li>\n
                \n

                \u516b\u3001 \u603b\u7ed3：\u9ad8\u9891\u8e29\u5751\u8840\u6cea\u6559\u8bad<\/h3>\n

                \u6700\u540e，\u603b\u7ed3\u51e0\u4e2a\u6211\u89c1\u8fc7\u65e0\u6570\u4eba\u8e29\u8fc7\u7684\u5751，\u5927\u5bb6\u5f15\u4ee5\u4e3a\u6212：<\/p>\n

              • \u76f2\u76ee\u91cd\u542f\u8282\u70b9\u5bfc\u81f4\u8c03\u5ea6\u96ea\u5d29：\u8282\u70b9\u53ea\u662f\u7f51\u7edc\u6296\u52a8\u53d8\u6210NotReady，\u4f60\u4e00\u53bb\u91cd\u542f，\u4e0a\u9762\u7684Pod\u5168\u6389\u7ebf，\u8c03\u5ea6\u5668\u77ac\u95f4\u628a\u6d41\u91cf\u6253\u5230\u5176\u4ed6\u8282\u70b9，\u76f4\u63a5\u628a\u5176\u4ed6\u8282\u70b9\u4e5f\u538b\u57ae\u3002<\/li>\n
              • \u4e0d\u770bEvents\u5c31\u731c\u539f\u56e0：\u4e0a\u6765\u5c31\u91cd\u542fPod，\u7ed3\u679c\u53d1\u73b0\u662f ConfigMap \u6ca1\u66f4\u65b0，\u91cd\u542f\u4e00\u4e07\u6b21\u4e5f\u6ca1\u7528\u3002<\/li>\n
              • \u63a2\u9488\u914d\u7f6e\u8fc7\u6fc0\u5f15\u53d1\u5065\u5eb7\u68c0\u67e5\u98ce\u66b4：livenessProbe \u7684 timeoutSeconds \u8bbe\u5f97\u592a\u77ed，\u6216\u8005\u63a5\u53e3\u672c\u8eab\u54cd\u5e94\u6162，\u5bfc\u81f4K8s\u75af\u72c2\u6740Pod，\u628a\u6d3b\u7740\u7684\u4e1a\u52a1\u4e5f\u641e\u6b7b\u4e86\u3002\u5efa\u8bae：\u6838\u5fc3\u670d\u52a1\u614e\u7528 livenessProbe，\u591a\u7528 readinessProbe\u3002<\/li>\n
              • \u78c1\u76d8\u6ee1\u5bfc\u81f4kubelet\u505c\u6446：\u53ea\u76d1\u63a7\u4e86\u78c1\u76d8\u5bb9\u91cf，\u6ca1\u76d1\u63a7 inode\u3002\u7ed3\u679c\u5c0f\u6587\u4ef6\u592a\u591a\u628a inode \u6491\u7206\u4e86，\u78c1\u76d8\u8fd8\u6709\u7a7a\u95f4\u4f46 kubelet \u76f4\u63a5\u7f62\u5de5\u3002<\/li>\n
              • etcd\u5907\u4efd\u4ece\u672a\u6f14\u7ec3\u8fc7\u6062\u590d：\u5e73\u65f6\u5907\u4efd\u8dd1\u5f97\u6b22，\u771f\u51fa\u4e8b\u4e86\u4e00\u6062\u590d，\u53d1\u73b0\u5907\u4efd\u811a\u672c\u53ea\u5907\u4efd\u4e86\u5143\u6570\u636e\u6ca1\u5907\u4efd\u6570\u636e，\u6216\u8005\u5bc6\u7801\u4e22\u4e86，\u76f4\u63a5\u539f\u5730\u53bb\u4e16\u3002<\/li>\n
                \n

                K8s \u8fd0\u7ef4\u5c31\u662f\u4e00\u573a\u4fee\u884c，\u6545\u969c\u4e0d\u53ef\u6015，\u53ef\u6015\u7684\u662f\u6ca1\u6709\u9884\u6848\u548c\u590d\u76d8\u3002\u5e0c\u671b\u8fd9\u7bc7\u5b9e\u6218\u590d\u76d8\u80fd\u5e2e\u5927\u5bb6\u5728\u9047\u5230\u96c6\u7fa4\u7ea7\u6545\u969c\u65f6，\u505a\u5230\u5fc3\u4e2d\u6709\u6570，\u624b\u4e2d\u6709\u5251\u3002<\/p>\n

                \u5982\u679c\u4f60\u89c9\u5f97\u8fd9\u7bc7\u6587\u7ae0\u5bf9\u4f60\u6709\u5e2e\u52a9，\u6216\u8005\u4f60\u4e5f\u5728\u751f\u4ea7\u73af\u5883\u8e29\u8fc7\u7c7b\u4f3c\u7684\u5751，\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u4ea4\u6d41\u4f60\u7684\u201c\u8840\u6cea\u53f2\u201d！<\/p>\n

                \u89c9\u5f97\u6709\u7528，\u522b\u5fd8\u4e86\u70b9\u4e2a\u8d5e\u3001\u6536\u85cf\u4e00\u4e0b，\u4ee5\u5907\u4e0d\u65f6\u4e4b\u9700（\u6bd5\u7adf\u6392\u67e5\u6545\u969c\u65f6，\u4f60\u53ef\u80fd\u53ea\u60f3\u76f4\u63a5\u590d\u5236\u547d\u4ee4）！\u6211\u4eec\u4e0b\u671f\u89c1！<\/p>\n","protected":false},"excerpt":{"rendered":"

                \u5144\u5f1f\u4eec，\u4eca\u5929\u590d\u76d8\u4e00\u4e2aK8s\u751f\u4ea7\u96c6\u7fa4\u7684\u4e25\u91cd\u6545\u969c\u3002
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