{"id":7721,"date":"2026-08-21T23:27:55","date_gmt":"2026-08-21T15:27:55","guid":{"rendered":"https:\/\/i007.cc\/wordpress\/?p=7721"},"modified":"2026-08-21T23:27:55","modified_gmt":"2026-08-21T15:27:55","slug":"%e8%ae%b2%e8%ae%b2-statefulset-vs-deployment","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/7721","title":{"rendered":"\u8bb2\u8bb2 StatefulSet vs Deployment"},"content":{"rendered":"
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\u8fd9\u4e24\u4e2a\u90fd\u662f\u7ba1\u7406\u4e00\u7ec4 Pod \u526f\u672c\u7684 Controller\uff0c\u4f46\u89e3\u51b3\u7684\u662f\u5b8c\u5168\u4e0d\u540c\u6027\u8d28\u7684\u95ee\u9898\uff1aDeployment \u5047\u8bbe\u6bcf\u4e2a\u526f\u672c\u90fd\u662f\u65e0\u5dee\u522b\u3001\u53ef\u4e92\u6362\u7684\uff1bStatefulSet \u5047\u8bbe\u6bcf\u4e2a\u526f\u672c\u90fd\u6709\u72ec\u4e00\u65e0\u4e8c\u7684\u8eab\u4efd\uff0c\u4e0d\u80fd\u88ab\u968f\u4fbf\u66ff\u6362\u3002<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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\u6700\u76f4\u89c2\u7684\u533a\u522b\uff1aPod \u547d\u540d<\/h4>\n

\u4f60\u7684\u00a0fleet-api<\/code>\u00a0\u5c31\u662f\u5178\u578b\u7684 Deployment\uff0c\u4e4b\u524d\u4f60\u8d34\u8fc7\u7684 Pod \u540d\u5b57\u957f\u8fd9\u6837\uff1a<\/p>\n

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fleet-api-6958d5465d-nmg4g\r\nfleet-api-6958d5465d-shntt<\/pre>\n
 <\/p>\n<\/div>\n<\/div>\n<\/div>\n
6958d5465d<\/code>\u00a0\u662f ReplicaSet \u7684\u54c8\u5e0c\uff0cnmg4g<\/code>\/shntt<\/code>\u00a0\u662f\u968f\u673a\u540e\u7f00\u2014\u2014\u8fd9\u4e24\u4e2a Pod \u4e4b\u95f4\u6ca1\u6709\u4efb\u4f55\u533a\u522b<\/strong>\uff0c\u8c01\u6b7b\u4e86 Deployment \u5c31\u968f\u4fbf\u9020\u4e00\u4e2a\u65b0\u7684\u968f\u673a\u540d\u5b57\u8865\u4e0a\u53bb\uff0c\u8c03\u7528\u65b9\u538b\u6839\u4e0d\u5173\u5fc3\u81ea\u5df1\u8fde\u7684\u662f\u54ea\u4e00\u4e2a\u526f\u672c\u3002<\/p>\n
\u6362\u6210 StatefulSet \u7ba1\u7406\u540c\u6837\u4e24\u4e2a\u526f\u672c\uff0c\u540d\u5b57\u4f1a\u662f\uff1a<\/p>\n
mysql-0\r\nmysql-1<\/pre>\n
 <\/p>\n
\u56fa\u5b9a\u7684\u5e8f\u53f7\uff0c\u4e0d\u662f\u968f\u673a\u54c8\u5e0c\u3002mysql-0<\/code>\u00a0\u8fd9\u4e2a\u8eab\u4efd\u662f\u6301\u4e45\u7684\u2014\u2014\u5b83\u91cd\u542f\u3001\u88ab\u91cd\u65b0\u8c03\u5ea6\u5230\u522b\u7684\u8282\u70b9\uff0c\u540d\u5b57\u8fd8\u662f\u00a0mysql-0<\/code>\uff0c\u4e0d\u4f1a\u53d8\u6210\u522b\u7684\u4e1c\u897f\u3002<\/p>\n
\u7f51\u7edc\u8eab\u4efd\uff1a\u8981\u4e0d\u8981\u80fd\u5355\u72ec\u627e\u5230\u67d0\u4e00\u4e2a\u526f\u672c<\/h4>\n
Deployment \u524d\u9762\u914d\u4e00\u4e2a\u666e\u901a Service\uff0c\u4f60\u53ea\u80fd\u8bf4”\u968f\u4fbf\u8f6c\u53d1\u7ed9\u8fd9\u51e0\u4e2a\u526f\u672c\u91cc\u7684\u4e00\u4e2a”\uff08\u5c31\u662f\u4f60\u73b0\u5728\u00a0fleet-api<\/code>\u00a0\u8fd9\u4e2a Service \u5e72\u7684\u4e8b\uff09\u3002<\/p>\n
StatefulSet \u901a\u5e38\u642d\u914d\u4e00\u4e2a\u00a0Headless Service<\/strong>\uff08clusterIP: None<\/code>\uff09\uff0c\u8fd9\u6837\u6bcf\u4e2a Pod \u4f1a\u989d\u5916\u83b7\u5f97\u4e00\u4e2a\u53ef\u4ee5\u5355\u72ec\u5bfb\u5740\u7684 DNS \u540d\u5b57\uff1a<\/p>\n
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mysql-0.mysql.default.svc.cluster.local\r\nmysql-1.mysql.default.svc.cluster.local<\/pre>\n
 <\/p>\n<\/div>\n<\/div>\n<\/div>\n
\u8fd9\u5728\u6570\u636e\u5e93\u96c6\u7fa4\u91cc\u662f\u521a\u9700\u2014\u2014\u6bd4\u5982”\u5199\u8bf7\u6c42\u5fc5\u987b\u53d1\u7ed9 mysql-0\uff08\u4e3b\u5e93\uff09\uff0c\u8bfb\u8bf7\u6c42\u53ef\u4ee5\u53d1\u7ed9 mysql-1\/2\uff08\u4ece\u5e93\uff09”\uff0c\u8fd9\u79cd”\u5fc5\u987b\u7cbe\u786e\u6307\u5b9a\u67d0\u4e00\u4e2a\u6210\u5458”\u7684\u573a\u666f\uff0c\u666e\u901a Service \u7684\u8d1f\u8f7d\u5747\u8861\u8bed\u4e49\u5b8c\u5168\u505a\u4e0d\u5230\u3002<\/p>\n
\u5b58\u50a8\uff1a\u78c1\u76d8\u8ddf\u7740\u8eab\u4efd\u8d70\uff0c\u4e0d\u662f\u8ddf\u7740 Pod \u8d70<\/h4>\n
\u8fd9\u662f\u6700\u5173\u952e\u7684\u5dee\u5f02\u3002StatefulSet \u7528\u00a0volumeClaimTemplates<\/code>\uff0c\u4f1a\u7ed9\u6bcf\u4e2a\u5e8f\u53f7<\/strong>\u5355\u72ec\u521b\u5efa\u4e00\u4e2a PVC\uff08data-mysql-0<\/code>\u3001data-mysql-1<\/code>\u2026\u2026\uff09\uff0c\u5e76\u4e14\u8fd9\u4e2a\u7ed1\u5b9a\u5173\u7cfb\u662f\u957f\u671f\u56fa\u5b9a\u7684\uff1amysql-0<\/code>\u00a0\u4e0d\u7ba1\u91cd\u542f\u591a\u5c11\u6b21\u3001\u88ab\u8c03\u5ea6\u5230\u54ea\u4e2a\u8282\u70b9\uff0c\u91cd\u65b0\u8d77\u6765\u540e\u6c38\u8fdc\u62ff\u56de\u5b83\u81ea\u5df1\u90a3\u5757\u76d8<\/strong>\uff0c\u6570\u636e\u4e0d\u4e22\u3002<\/p>\n
\u666e\u901a Deployment \u6ca1\u6709\u8fd9\u4e2a\u673a\u5236\u2014\u2014\u5982\u679c\u4f60\u7ed9 Deployment \u6302\u8f7d\u6301\u4e45\u5377\uff0c\u901a\u5e38\u6240\u6709\u526f\u672c\u8981\u4e48\u5171\u4eab\u540c\u4e00\u4e2a PVC\uff08\u4f1a\u6709\u5e76\u53d1\u5199\u51b2\u7a81\u95ee\u9898\uff09\uff0c\u8981\u4e48\u5e72\u8106\u5c31\u4e0d\u8be5\u7528 Deployment \u88c5\u6709\u72b6\u6001\u5e94\u7528\uff0c\u8fd9\u6b63\u662f StatefulSet \u5b58\u5728\u7684\u610f\u4e49\u3002<\/p>\n
\u521b\u5efa\/\u66f4\u65b0\u987a\u5e8f\uff1aStatefulSet \u8bb2\u7a76\u5148\u540e\u987a\u5e8f\uff0cDeployment \u4e0d\u8bb2\u7a76<\/h4>\n
Deployment \u6eda\u52a8\u66f4\u65b0\u65f6\uff0c\u591a\u4e2a\u65b0 Pod \u53ef\u4ee5\u5e76\u884c\u8d77\u6765\uff0c\u8c01\u5148 Ready \u65e0\u6240\u8c13\u3002StatefulSet \u9ed8\u8ba4\u4e25\u683c\u6309\u5e8f\u53f7\u987a\u5e8f<\/strong>\u64cd\u4f5c\uff1a\u6269\u5bb9\u65f6 0 \u53f7\u5fc5\u987b Running+Ready \u4e4b\u540e\u624d\u4f1a\u521b\u5efa 1 \u53f7\uff1b\u7f29\u5bb9\/\u66f4\u65b0\u65f6\u53cd\u8fc7\u6765\uff0c\u4ece\u6700\u5927\u5e8f\u53f7\u5f00\u59cb\u5904\u7406\u3002\u8fd9\u5bf9”\u96c6\u7fa4\u6210\u5458\u9700\u8981\u6309\u987a\u5e8f\u52a0\u5165”\u7684\u573a\u666f\uff08\u6bd4\u5982\u6570\u636e\u5e93\u4e3b\u4ece\u521d\u59cb\u5316\u3001\u9700\u8981\u5148\u9009\u51fa leader \u518d\u8ba9 follower \u52a0\u5165\uff09\u5f88\u91cd\u8981\u3002<\/p>\n
\u4e00\u53e5\u8bdd\u7248\u672c + \u4f8b\u5b50<\/h4>\n
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<\/th>\nDeployment<\/th>\nStatefulSet<\/th>\n<\/tr>\n<\/thead>\n
\u526f\u672c\u5173\u7cfb<\/td>\n\u5b8c\u5168\u5bf9\u7b49\u3001\u53ef\u4e92\u6362<\/td>\n\u6bcf\u4e2a\u526f\u672c\u6709\u72ec\u7acb\u8eab\u4efd<\/td>\n<\/tr>\n
Pod \u547d\u540d<\/td>\n\u968f\u673a\u54c8\u5e0c\u540e\u7f00<\/td>\n\u56fa\u5b9a\u5e8f\u53f7\uff08-0, -1, -2\uff09<\/td>\n<\/tr>\n
\u5b58\u50a8<\/td>\n\u901a\u5e38\u65e0\u72b6\u6001\u6216\u5171\u4eab<\/td>\n\u6bcf\u4e2a\u526f\u672c\u72ec\u7acb PVC\uff0c\u91cd\u542f\u540e\u539f\u6837\u5e26\u56de<\/td>\n<\/tr>\n
\u5355\u72ec\u5bfb\u5740<\/td>\n\u4e0d\u652f\u6301<\/td>\n\u652f\u6301\uff08Headless Service + DNS\uff09<\/td>\n<\/tr>\n
\u521b\u5efa\/\u66f4\u65b0\u987a\u5e8f<\/td>\n\u65e0\u5e8f\u3001\u53ef\u5e76\u884c<\/td>\n\u4e25\u683c\u6309\u5e8f\u53f7<\/td>\n<\/tr>\n
\u5178\u578b\u573a\u666f<\/td>\nWeb\/API \u670d\u52a1\uff08\u4f60\u7684 fleet-api\uff09<\/td>\nMySQL\/Postgres \u96c6\u7fa4\u3001Kafka\u3001ZooKeeper\u3001etcd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\u987a\u5e26\u4e00\u63d0\u2014\u2014\u6211\u4eec\u4e4b\u524d\u804a\u4e86\u5f88\u591a\u7684\u00a0etcd<\/strong>\uff0c\u5982\u679c\u4f60\u8981\u5728 K8s \u4e0a\u8dd1\u4e00\u4e2a\u72ec\u7acb\u7684 etcd \u96c6\u7fa4\uff08\u800c\u4e0d\u662f\u50cf\u4f60 kind \u96c6\u7fa4\u91cc\u8fd9\u79cd kubeadm \u7ba1\u7406\u7684\u9759\u6001 Pod\uff09\uff0c\u51e0\u4e4e\u603b\u662f\u7528 StatefulSet \u90e8\u7f72\uff0c\u539f\u56e0\u5c31\u662f\u4e0a\u9762\u8fd9\u51e0\u6761\u5168\u90fd\u7528\u5f97\u4e0a\uff1a\u6bcf\u4e2a etcd \u6210\u5458\u9700\u8981\u56fa\u5b9a\u7684\u8eab\u4efd\u7528\u4e8e Raft \u91cc\u7684 peer \u5bfb\u5740\uff08etcd-0<\/code>\u3001etcd-1<\/code>\u3001etcd-2<\/code>\u00a0\u5404\u81ea\u6301\u4e45\u5316\u7684 WAL\/snapshot \u6570\u636e\u4e0d\u80fd\u8ddf\u522b\u7684\u6210\u5458\u641e\u6df7\uff09\uff0c\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48”\u6709\u72b6\u6001”\u548c”StatefulSet”\u8fd9\u4e24\u4e2a\u8bcd\u662f\u7ed1\u5728\u4e00\u8d77\u7684\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u8fd9\u4e24\u4e2a\u90fd\u662f\u7ba1\u7406\u4e00\u7ec4 Pod \u526f\u672c\u7684 Co<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[24],"tags":[],"class_list":["post-7721","post","type-post","status-publish","format-standard","hentry","category-value_docs"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/7721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=7721"}],"version-history":[{"count":1,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/7721\/revisions"}],"predecessor-version":[{"id":7722,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/7721\/revisions\/7722"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=7721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=7721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=7721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}