\u4f7f\u7528\u65b0\u7684\u5c42\u539f\u914d\u7f6e\u542f\u52a8\u65b0\u6210\u5458，\u5305\u62ec\u66f4\u65b0\u540e\u7684\u6210\u5458\u5217\u8868(\u4ee5\u540e\u6210\u5458\u52a0\u65b0\u6210\u5458)<\/li>\n<\/ul>\n\u4f7f\u7528\u00a0etcdctl\u00a0\u6307\u5b9a\u00a0name\u00a0\u548c\u00a0advertised peer URLs\u00a0\u6765\u6dfb\u52a0\u65b0\u7684\u6210\u5458\u5230\u96c6\u7fa4:<\/p>\n
$ etcdctl member add infra3 http:\/\/10.0.1.13:2380 added member 9bf1b35fc7761a23 to cluster<\/p>\n
ETCD_NAME="infra3" ETCD_INITIAL_CLUSTER="infra0=http:\/\/10.0.1.10:2380,infra1=http:\/\/10.0.1.11:2380,infra2=http:\/\/10.0.1.12:2380,infra3=http:\/\/10.0.1.13:2380" ETCD_INITIAL_CLUSTER_STATE=existing<\/p>\n
\u00a0<\/p>\n
etcdctl\u00a0\u5df2\u7ecf\u7ed9\u51fa\u5173\u4e8e\u65b0\u6210\u5458\u7684\u96c6\u7fa4\u4fe1\u606f\u5e76\u6253\u5370\u51fa\u6210\u529f\u542f\u52a8\u5b83\u9700\u8981\u7684\u73af\u5883\u53d8\u91cf\u3002\u73b0\u5728\u7528\u5173\u8054\u7684\u6807\u8bb0\u4e3a\u65b0\u7684\u6210\u5458\u542f\u52a8\u65b0 etcd \u8fdb\u7a0b:<\/p>\n
$ export ETCD_NAME="infra3" $ export ETCD_INITIAL_CLUSTER="infra0=http:\/\/10.0.1.10:2380,infra1=http:\/\/10.0.1.11:2380,infra2=http:\/\/10.0.1.12:2380,infra3=http:\/\/10.0.1.13:2380" $ export ETCD_INITIAL_CLUSTER_STATE=existing $ etcd –listen-client-urls http:\/\/10.0.1.13:2379 –advertise-client-urls http:\/\/10.0.1.13:2379 –listen-peer-urls http:\/\/10.0.1.13:2380 –initial-advertise-peer-urls http:\/\/10.0.1.13:2380 –data-dir %data_dir%\u00a0<\/p>\n
\u65b0\u6210\u5458\u5c06\u4f5c\u4e3a\u96c6\u7fa4\u7684\u4e00\u90e8\u5206\u8fd0\u884c\u5e76\u7acb\u5373\u5f00\u59cb\u8d76\u4e0a\u96c6\u7fa4\u7684\u5176\u4ed6\u6210\u5458\u3002<\/span><\/p>\n\u5982\u679c\u6dfb\u52a0\u591a\u4e2a\u6210\u5458，\u6700\u4f73\u5b9e\u8df5\u662f\u4e00\u6b21\u914d\u7f6e\u5355\u4e2a\u6210\u5458\u5e76\u5728\u6dfb\u52a0\u66f4\u591a\u65b0\u6210\u5458\u524d\u9a8c\u8bc1\u5b83\u6b63\u786e\u542f\u52a8\u3002<\/p>\n
\u5982\u679c\u6dfb\u52a0\u65b0\u6210\u5458\u5230\u4e00\u4e2a\u8282\u70b9\u7684\u96c6\u7fa4，\u5728\u65b0\u6210\u5458\u542f\u52a8\u524d\u96c6\u7fa4\u65e0\u6cd5\u7ee7\u7eed\u5de5\u4f5c，\u56e0\u4e3a\u5b83\u9700\u8981\u4e24\u4e2a\u6210\u5458\u4f5c\u4e3agalosh\u624d\u80fd\u5728\u4e00\u81f4\u6027\u4e0a\u8fbe\u6210\u4e00\u81f4\u3002<\/span>\u8fd9\u4e2a\u884c\u4e3a\u4ec5\u4ec5\u53d1\u751f\u5728\u00a0etcdctl member add\u00a0\u5f71\u54cd\u96c6\u7fa4\u548c\u65b0\u6210\u5458\u6210\u529f\u5efa\u7acb\u8fde\u63a5\u5230\u5df2\u6709\u6210\u5458\u7684\u65f6\u95f4\u5185\u3002<\/p>\n\u00a0<\/p>\n
<\/h3>\n1.\u67e5\u770b\u96c6\u7fa4\u72b6\u6001\u00a0 \u83b7\u53d6\u4e3b\u8282\u70b9\u548c\u6545\u969c\u8282\u70b9id<\/h3>\n
ETCDCTL_API=3 .\/etcdctl –cacert=\/etc\/kubernetes\/ssl\/new-ca.pem –cert=\/etc\/kubernetes\/ssl\/etcd.pem –key=\/etc\/kubernetes\/ssl\/etcd-key.pem –endpoints="https:\/\/192.168.7.132:2379,https:\/\/192.168.7.134:2379,https:\/\/192.168.7.135:2379" endpoint status cluster-health –write-out=table <\/p>\n
ETCDCTL_API=3 .\/etcdctl –cacert=\/etc\/kubernetes\/ssl\/new-ca.pem –cert=\/etc\/kubernetes\/ssl\/etcd.pem –key=\/etc\/kubernetes\/ssl\/etcd-key.pem –endpoints="https:\/\/192.168.7.132:2379,https:\/\/192.168.7.134:2379,https:\/\/192.168.7.135:2379" endpoint status cluster-health –write-out=table <\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250523105227-6830536bb1cf9.png\")
<\/p>\n
\u00a0\u67e5\u770b\u6545\u969c\u8282\u70b9<\/p>\n
ETCDCTL_API=3 .\/etcdctl –cacert=\/etc\/kubernetes\/ssl\/new-ca.pem –cert=\/etc\/kubernetes\/ssl\/etcd.pem –key=\/etc\/kubernetes\/ssl\/etcd-key.pem –endpoints="https:\/\/192.168.7.132:2379,https:\/\/192.168.7.134:2379,https:\/\/192.168.7.135:2379" endpoint
\n health –write-out=table <\/p>\n
ETCDCTL_API=3 .\/etcdctl –cacert=\/etc\/kubernetes\/ssl\/new-ca.pem –cert=\/etc\/kubernetes\/ssl\/etcd.pem –key=\/etc\/kubernetes\/ssl\/etcd-key.pem –endpoints="https:\/\/192.168.7.132:2379,https:\/\/192.168.7.134:2379,https:\/\/192.168.7.135:2379" endpoint
\n health –write-out=table <\/p>\n<\/p>\n
2.\u5254\u9664\u6545\u969c\u8282\u70b9\u00a0<\/h3>\n
ETCDCTL_API=3 etcdctl –endpoints="https:\/\/172.16.169.82:2379" –cacert=\/etc\/etcd\/ssl\/ca.pem –cert=\/etc\/etcd\/ssl\/etcd.pem –key=\/etc\/etcd\/ssl\/etcd-key.pem member remove 971a0fee3d275c5 <\/p>\n
ETCDCTL_API=3 etcdctl –endpoints="https:\/\/172.16.169.82:2379" –cacert=\/etc\/etcd\/ssl\/ca.pem –cert=\/etc\/etcd\/ssl\/etcd.pem –key=\/etc\/etcd\/ssl\/etcd-key.pem member remove 971a0fee3d275c5<\/p>\n
\u9a8c\u8bc1\u662f\u5426\u5254\u9664\u6210\u529f<\/p>\n
ETCDCTL_API=3 .\/etcdctl –cacert=\/etc\/kubernetes\/ssl\/new-ca.pem –cert=\/etc\/kubernetes\/ssl\/etcd.pem –key=\/etc\/kubernetes\/ssl\/etcd-key.pem –endpoints="https:\/\/192.168.7.132:2379,https:\/\/192.168.7.134:2379,https:\/\/192.168.7.135:2379" member list –write-out=table <\/p>\n
ETCDCTL_API=3 .\/etcdctl –cacert=\/etc\/kubernetes\/ssl\/new-ca.pem –cert=\/etc\/kubernetes\/ssl\/etcd.pem –key=\/etc\/kubernetes\/ssl\/etcd-key.pem –endpoints="https:\/\/192.168.7.132:2379,https:\/\/192.168.7.134:2379,https:\/\/192.168.7.135:2379" member list –write-out=table<\/p>\n<\/p>\n
3.\u91cd\u65b0\u6dfb\u52a0\u6545\u969c\u8282\u70b9<\/h3>\n 3.1 \u68c0\u67e5\u65e7etcd\u6570\u636e\u5e76\u6e05\u7a7a\u00a0<\/h6>\n
rm -rf etcd3.etcd\/ <\/p>\n
3.2 \u4fee\u6539\u8981\u52a0\u5165\u96c6\u7fa4etcd3\u7684\u542f\u52a8\u53c2\u6570<\/p>\n
vi \/etc\/etcd\/etcd.conf\u5e76\u4fdd\u5b58
\n\u5c06etcd\u7684–initial-cluster-state\u542f\u52a8\u53c2\u6570，\u6539\u4e3a–initial-cluster-state=existing <\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250523105228-6830536c15318.png\")
<\/p>\n
3.3 \u4eceetcd-master\u62f7\u8d1d\u8bc1\u4e66<\/p>\n
scp -rp etcd1:\/etc\/etcd\/ssl\/ \u00a0\/etc\/etcd\/ <\/p>\n
\u62f7\u8d1d\u540e\u68c0\u67e5etcd\u8bc1\u4e66\u6240\u5c5e\u7528\u6237<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250523105228-6830536c57cb7.png\")
<\/p>\n
3.4 \u91cd\u65b0\u6dfb\u52a0\u6545\u969c\u8282\u70b9etcd3 \u6ce8\u610f：etcd3\u4e3aetcd.conf\u4e2dETCD_NAME<\/p>\n
ETCDCTL_API=3 etcdctl –endpoints="https:\/\/172.16.169.82:2379" –cacert=\/etc\/etcd\/ssl\/ca.pem –cert=\/etc\/etcd\/ssl\/etcd.pem –key=\/etc\/etcd\/ssl\/etcd-key.pem \u00a0member add etcd3 –peer-urls=https:\/\/172.16.169.83:2380<\/p>\n
3.5 \u91cd\u542f\u670d\u52a1\u9a8c\u8bc1\u6210\u529f<\/p>\n
systemctl daemon-reload systemctl restart etcd<\/p>\n<\/p>\n
\u00a0 \u4e8c. \u5907\u4efd\u6062\u590d\u65b9\u5f0f\u91cd\u505a\u96c6\u7fa4<\/h3>\n
\u5907\u6ce8：\u6b64\u65b9\u5f0f\u6709\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e22\u5931，\u4eb2\u8eab\u7ecf\u5386，\u5c3d\u91cf\u4f7f\u7528\u7b2c\u4e00\u79cd\u65b9\u5f0f\u3002<\/p>\n
\u5907\u4efdETCD\u96c6\u7fa4\u65f6，\u53ea\u9700\u8981\u5907\u4efd\u4e00\u4e2aETCD\u6570\u636e，\u7136\u540e\u540c\u6b65\u5230\u5176\u4ed6\u8282\u70b9\u4e0a \u6062\u590dETCD\u6570\u636e\u65f6，\u6bcf\u4e2a\u8282\u70b9\u90fd\u8981\u6267\u884c\u6062\u590d\u547d\u4ee4 \u6062\u590d\u987a\u5e8f：\u505c\u6b62kube-apiserver \u2013> \u505c\u6b62ETCD \u2013> \u6062\u590d\u6570\u636e \u2013> \u542f\u52a8ETCD \u2013> \u542f\u52a8kube-apiserve<\/p>\n
etcd\u8d44\u6e90\u6587\u4ef6\u5728\/var\/lib\/etcd\u4e0b，\u6709\u4e24\u4e2a\u6587\u4ef6\u5939<\/p>\n
\n- snap：\u5b58\u653e\u5feb\u7167\u6570，etcd\u9632\u6b62WAL\u6587\u4ef6\u8fc7\u591a\u800c\u8bbe\u7f6e\u7684\u5feb\u7167，\u5b58\u50a8etcd\u6570\u636e\u72b6\u6001<\/li>\n
- wal：\u5b58\u653e\u9884\u5199\u5f0f\u65e5\u5fd7,\u6700\u5927\u7684\u4f5c\u7528\u662f\u8bb0\u5f55\u4e86\u6574\u4e2a\u6570\u636e\u53d8\u5316\u7684\u5168\u90e8\u5386\u7a0b\u3002\u5728etcd\u4e2d，\u6240\u6709\u6570\u636e\u7684\u4fee\u6539\u5728\u63d0\u4ea4\u524d，\u90fd\u8981\u5148\u5199\u5165\u5230WAL\u4e2d<\/li>\n<\/ul>\n
1\u3001\u67e5\u770b\u5065\u5eb7\u8282\u70b9<\/p>\n
ETCDCTL_API=3 \/opt\/etcd\/bin\/etcdctl –cacert=\/opt\/etcd\/ssl\/etcd-ca.pem –cert=\/opt\/etcd\/ssl\/server.pem –key=\/opt\/etcd\/ssl\/server-key.pem –endpoints="https:\/\/192.168.15.215:2379,https:\/\/192.168.15.216:2379,https:\/\/192.168.15.217:2379" endpoint health –write-out=table<\/p>\n
2\u3001\u5728\u5065\u5eb7\u8282\u70b9\u4e0a\u5907\u4efdetcd\u6570\u636e<\/p>\n
ETCDCTL_API=3 etcdctl snapshot save \u00a0backup.db \\\\
\n–cacert=\/opt\/etcd\/ssl\/etcd-ca.pem \\\\
\n–cert=\/opt\/etcd\/ssl\/server.pem \\\\
\n–key=\/opt\/etcd\/ssl\/server-key.pem \\\\
\n–endpoints="https:\/\/192.168.15.215:2379" <\/p>\n
3\u3001\u5c06\u5907\u4efd\u540e\u7684\u6587\u4ef6\u590d\u5236\u5230\u5176\u4ed6etcd\u8282\u70b9\u4e0b<\/p>\n
for i in {etcd2,etcd3};do scp backup.db root@i:\/root ;done <\/p>\n
4\u3001\u6062\u590detcd\u6570\u636e \u6062\u590d\u4e4b\u524d\u9700\u8981\u5148\u5173\u95edapiserver\u548cetcd，\u5220\u9664etcd\u6570\u636e\u6587\u4ef6<\/p>\n
systemctl stop kube-apiserver \u00a0#\u505c\u6b62apiserver
\nsystemctl stop etcd \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0#\u505c\u6b62etcd
\nrm -rf opt\/etcd\/data\/* \u00a0 \u00a0 \u00a0 \u00a0 #\u5220\u9664\u6570\u636e\u76ee\u5f55\u6587\u4ef6,\u6839\u636e\u5b9e\u9645\u60c5\u51b5 <\/p>\n
\u5728\u8282\u70b91\u6267\u884c\u6062\u590d\u547d\u4ee4，\u5982\u4e0b：<\/p>\n
ETCDCTL_API=3 etcdctl snapshot restore backup.db \\\\
\n–name etcd-1 \\\\
\n–initial-cluster="etcd-1=https:\/\/192.168.15.215:2380,etcd-2=https:\/\/192.168.15.216:2380,etcd-3=https:\/\/192.168.15.217:2380" \\\\
\n–initial-cluster-token=etcd-cluster \\\\
\n–initial-advertise-peer-urls=https:\/\/192.168.15.215:2380 \\\\
\n–data-dir=\/opt\/etcd\/data <\/p>\n
\u5728\u8282\u70b92\u6267\u884c\u6062\u590d\u547d\u4ee4，\u5982\u4e0b：<\/p>\n
ETCDCTL_API=3 etcdctl snapshot restore backup.db \\\\
\n–name etcd-2 \\\\
\n–initial-cluster="etcd-1=https:\/\/192.168.15.215:2380,etcd-2=https:\/\/192.168.15.216:2380,etcd-3=https:\/\/192.168.15.217:2380" \\\\
\n–initial-cluster-token=etcd-cluster \\\\
\n–initial-advertise-peer-urls=https:\/\/192.168.15.216:2380 \\\\
\n–data-dir=\/opt\/etcd\/data <\/p>\n
\u5728\u8282\u70b93\u6267\u884c\u6062\u590d\u547d\u4ee4，\u5982\u4e0b：<\/p>\n
ETCDCTL_API=3 etcdctl snapshot restore backup.db \\\\
\n–name etcd-3 \\\\
\n–initial-cluster="etcd-1=https:\/\/192.168.15.215:2380,etcd-2=https:\/\/192.168.15.216:2380,etcd-3=https:\/\/192.168.15.217:2380" \\\\
\n–initial-cluster-token=etcd-cluster \\\\
\n–initial-advertise-peer-urls=https:\/\/192.168.15.217:2380 \\\\
\n–data-dir=\/opt\/etcd\/data <\/p>\n
\u6062\u590d\u5b8c\u6210\u540e，\u91cd\u542fkube-apiserver\u548cetcd，\u5982\u4e0b：<\/p>\n
systemctl start kube-apiserver
\nsystemctl start etcd <\/p>\n
5\u3001\u67e5\u770b\u96c6\u7fa4\u72b6<\/p>\n
ETCDCTL_API=3 \/opt\/etcd\/bin\/etcdctl –cacert=\/opt\/etcd\/ssl\/etcd-ca.pem –cert=\/opt\/etcd\/ssl\/server.pem –key=\/opt\/etcd\/ssl\/server-key.pem –endpoi<\/p>\n","protected":false},"excerpt":{"rendered":"
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