{"id":195701,"date":"2024-11-13T17:11:23","date_gmt":"2024-11-13T09:11:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/195701\/"},"modified":"2024-11-13T17:11:25","modified_gmt":"2024-11-13T09:11:25","slug":"%e5%9c%a8-kubernetes-%e4%b8%8a%e9%81%8b%e8%a1%8c-pgpool-il-%e5%af%a6%e7%8f%be-postgresql-%e6%9f%a5%e8%a9%a2%e8%ae%80%e8%b2%a0%e8%bc%89%e5%9d%87%e8%a1%a1%e5%92%8c%e9%80%a3%e6%8e%a5%e6%b1%a0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/195701\/","title":{"rendered":"\u5728 Kubernetes \u4e0a\u904b\u884c Pgpool-Il \u5be6\u73fe PostgreSQL \u67e5\u8a62(\u8b80)\u8ca0\u8f09\u5747\u8861\u548c\u9023\u63a5\u6c60"},"content":{"rendered":"<h1 id=\"%e5%9c%a8-kubernetes-%e4%b8%8a%e9%81%8b%e8%a1%8c-pgpool-ii-%e5%af%a6%e7%8f%be-postgresql-%e6%9f%a5%e8%a9%a2%e8%ae%80%e8%b2%a0%e8%bc%89%e5%9d%87%e8%a1%a1%e5%92%8c%e9%80%a3%e6%8e%a5%e6%b1%a0-KvXgjNvyzh\">\u5728 Kubernetes \u4e0a\u904b\u884c Pgpool-II \u5be6\u73fe PostgreSQL \u67e5\u8a62(\u8b80)\u8ca0\u8f09\u5747\u8861\u548c\u9023\u63a5\u6c60<\/h1>\n<p>\u96a8\u8457\u5fae\u670d\u52d9\u67b6\u69cb\u7684\u666e\u53ca\uff0c\u8d8a\u4f86\u8d8a\u591a\u7684\u4f01\u696d\u9078\u64c7\u4f7f\u7528 Kubernetes \u4f86\u7ba1\u7406\u5176\u61c9\u7528\u7a0b\u5e8f\u7684\u5bb9\u5668\u5316\u90e8\u7f72\u3002\u5728\u9019\u6a23\u7684\u74b0\u5883\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u6210\u70ba\u4e86\u95dc\u9375\u56e0\u7d20\u3002PostgreSQL \u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u958b\u6e90\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff0c\u5e38\u5e38\u88ab\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u4e2d\u3002\u800c Pgpool-II \u4f5c\u70ba\u4e00\u500b\u4e2d\u4ecb\u5c64\uff0c\u80fd\u5920\u6709\u6548\u5730\u5be6\u73fe PostgreSQL \u7684\u67e5\u8a62\u8ca0\u8f09\u5747\u8861\u548c\u9023\u63a5\u6c60\u7ba1\u7406\uff0c\u5f9e\u800c\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u7528\u6027\u3002<\/p>\n<h2 id=\"pgpool-ii-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-KvXgjNvyzh\">Pgpool-II \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Pgpool-II \u662f\u4e00\u500b\u4e2d\u4ecb\u8edf\u4ef6\uff0c\u4f4d\u65bc PostgreSQL \u5ba2\u6236\u7aef\u548c\u4f3a\u670d\u5668\u4e4b\u9593\u3002\u5b83\u7684\u4e3b\u8981\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u8ca0\u8f09\u5747\u8861\uff1a<\/strong>\u5c07\u67e5\u8a62\u8acb\u6c42\u5206\u914d\u5230\u591a\u500b PostgreSQL \u5be6\u4f8b\u4e0a\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<li><strong>\u9023\u63a5\u6c60\uff1a<\/strong>\u7ba1\u7406\u6578\u64da\u5eab\u9023\u63a5\uff0c\u6e1b\u5c11\u9023\u63a5\u5efa\u7acb\u7684\u958b\u92b7\u3002<\/li>\n<li><strong>\u6545\u969c\u8f49\u79fb\uff1a<\/strong>\u5728\u4e3b\u4f3a\u670d\u5668\u6545\u969c\u6642\u81ea\u52d5\u5207\u63db\u5230\u5099\u7528\u4f3a\u670d\u5668\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9c%a8-kubernetes-%e4%b8%8a%e9%83%a8%e7%bd%b2-pgpool-ii-KvXgjNvyzh\">\u5728 Kubernetes \u4e0a\u90e8\u7f72 Pgpool-II<\/h2>\n<p>\u5728 Kubernetes \u74b0\u5883\u4e2d\u90e8\u7f72 Pgpool-II \u9700\u8981\u5275\u5efa\u76f8\u61c9\u7684\u8cc7\u6e90\u914d\u7f6e\uff0c\u5305\u62ec Deployment\u3001Service \u548c ConfigMap\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u7684\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%89%b5%e5%bb%ba-configmap-KvXgjNvyzh\">1. \u5275\u5efa ConfigMap<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5275\u5efa\u4e00\u500b ConfigMap \u4f86\u5b58\u5132 Pgpool-II \u7684\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre><code>apiVersion: v1\nkind: ConfigMap\nmetadata:\n  name: pgpool-config\ndata:\n  pgpool.conf: |\n    backend_hostname0 = 'postgresql-0.postgresql.default.svc.cluster.local'\n    backend_port0 = 5432\n    backend_weight0 = 1\n    num_init_children = 100\n    max_pool = 4\n    listen_addresses = '*'\n  pcp.conf: |\n    # PCPCONF\n    # Add your user and password here\n    user1 = 'pgpool'\n    password1 = 'password'\n<\/code><\/pre>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba-deployment-KvXgjNvyzh\">2. \u5275\u5efa Deployment<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u5275\u5efa Pgpool-II \u7684 Deployment\uff1a<\/p>\n<pre><code>apiVersion: apps\/v1\nkind: Deployment\nmetadata:\n  name: pgpool\nspec:\n  replicas: 1\n  selector:\n    matchLabels:\n      app: pgpool\n  template:\n    metadata:\n      labels:\n        app: pgpool\n    spec:\n      containers:\n      - name: pgpool\n        image: pgpool\/pgpool-II\n        ports:\n        - containerPort: 5432\n        volumeMounts:\n        - name: pgpool-config\n          mountPath: \/etc\/pgpool\n      volumes:\n      - name: pgpool-config\n        configMap:\n          name: pgpool-config\n<\/code><\/pre>\n<h3 id=\"3-%e5%89%b5%e5%bb%ba-service-KvXgjNvyzh\">3. \u5275\u5efa Service<\/h3>\n<p>\u6700\u5f8c\uff0c\u6211\u5011\u9700\u8981\u5275\u5efa\u4e00\u500b Service \u4f86\u66b4\u9732 Pgpool-II\uff1a<\/p>\n<pre><code>apiVersion: v1\nkind: Service\nmetadata:\n  name: pgpool\nspec:\n  ports:\n  - port: 5432\n    targetPort: 5432\n  selector:\n    app: pgpool\n<\/code><\/pre>\n<h2 id=\"%e9%85%8d%e7%bd%ae-postgresql-%e5%be%8c%e7%ab%af-KvXgjNvyzh\">\u914d\u7f6e PostgreSQL \u5f8c\u7aef<\/h2>\n<p>\u5728 Pgpool-II \u90e8\u7f72\u5b8c\u6210\u5f8c\uff0c\u9084\u9700\u8981\u914d\u7f6e PostgreSQL \u7684\u5f8c\u7aef\u4f3a\u670d\u5668\u3002\u78ba\u4fdd PostgreSQL \u7684\u4e3b\u4f3a\u670d\u5668\u548c\u5099\u7528\u4f3a\u670d\u5668\u90fd\u5df2\u7d93\u6b63\u78ba\u914d\u7f6e\u4e26\u904b\u884c\u3002Pgpool-II \u5c07\u6839\u64da\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684\u5f8c\u7aef\u4fe1\u606f\u81ea\u52d5\u9032\u884c\u8ca0\u8f09\u5747\u8861\u3002<\/p>\n<h2 id=\"%e6%b8%ac%e8%a9%a6%e8%b2%a0%e8%bc%89%e5%9d%87%e8%a1%a1-KvXgjNvyzh\">\u6e2c\u8a66\u8ca0\u8f09\u5747\u8861<\/h2>\n<p>\u4e00\u65e6 Pgpool-II \u548c PostgreSQL \u90fd\u5df2\u7d93\u90e8\u7f72\u4e26\u904b\u884c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u6e2c\u8a66\u8ca0\u8f09\u5747\u8861\uff1a<\/p>\n<pre><code>psql -h pgpool -U your_user -d your_database -c \"SELECT * FROM your_table;\"\n<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u6703\u901a\u904e Pgpool-II \u9032\u884c\uff0c\u4e26\u6839\u64da\u914d\u7f6e\u7684\u8ca0\u8f09\u5747\u8861\u7b56\u7565\u5206\u914d\u5230\u4e0d\u540c\u7684 PostgreSQL \u5be6\u4f8b\u4e0a\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KvXgjNvyzh\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Kubernetes \u4e0a\u904b\u884c Pgpool-II \u662f\u5be6\u73fe PostgreSQL \u67e5\u8a62\u8ca0\u8f09\u5747\u8861\u548c\u9023\u63a5\u6c60\u7684\u4e00\u500b\u6709\u6548\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u5408\u7406\u7684\u914d\u7f6e\uff0cPgpool-II \u80fd\u5920\u986f\u8457\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u7528\u6027\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u53ef\u64f4\u5c55\u6027\u7684\u61c9\u7528\uff0c\u9019\u7a2e\u67b6\u69cb\u7121\u7591\u662f\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u9084\u662f\u5176\u4ed6\u61c9\u7528\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Kubernetes \u4e0a\u904b\u884c Pgpool-II\uff0c\u5be6\u73fe PostgreSQL \u67e5\u8a62\u8ca0\u8f09\u5747\u8861\u548c\u9023\u63a5\u6c60\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u53ef\u64f4\u5c55\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-195701","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=195701"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195701\/revisions"}],"predecessor-version":[{"id":195702,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195701\/revisions\/195702"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=195701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=195701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=195701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}