{"id":3425,"date":"2026-10-30T08:00:00","date_gmt":"2026-10-30T00:00:00","guid":{"rendered":"https:\/\/www.ygcloud.com\/knowledge\/?p=3425"},"modified":"2026-10-29T11:48:09","modified_gmt":"2026-10-29T03:48:09","slug":"cloud-server-postgresql-sizing","status":"publish","type":"post","link":"https:\/\/www.ygcloud.com\/knowledge\/3425\/","title":{"rendered":"\u4e91\u670d\u52a1\u5668 PostgreSQL\uff1a\u914d\u7f6e\u3001\u5907\u4efd\u4e0e\u8c03\u4f18"},"content":{"rendered":"<p>\u5148\u8bf4\u7ed3\u8bba\uff1aPostgreSQL \u662f\u8fdb\u7a0b\u6a21\u578b\uff0c\u6bcf\u4e2a\u8fde\u63a5\u4e00\u4e2a\u8fdb\u7a0b\uff0c\u6bd4 MySQL \u66f4\u5403\u5185\u5b58\u548c\u8fde\u63a5\u6570\u3002\u9009\u914d\u7f6e\u5148\u770b\u8fde\u63a5\u6570\u548c\u6570\u636e\u70ed\u533a\uff0c\u518d\u770b CPU\uff1b2 \u6838 4G \u80fd\u8dd1\u5c0f\u7ad9\uff0c4 \u6838 8G \u9002\u5408\u4e2d\u578b\u4e1a\u52a1\uff0c\u8fde\u63a5\u6570\u4e00\u591a\u5c31\u8981\u4e0a\u8fde\u63a5\u6c60\uff0c\u5426\u5219\u52a0\u5185\u5b58\u4e5f\u625b\u4e0d\u4f4f\u3002<\/p>\n<p>\u4e09\u7b14\u8d26\u5148\u7b97\u6e05\uff1a<\/p>\n<ul>\n<li><strong>\u8fde\u63a5\u6570<\/strong>\uff1a\u6bcf\u4e2a\u8fde\u63a5\u5360\u5185\u5b58\uff0c\u8fd8\u5e26\u6765\u8fdb\u7a0b\u5207\u6362\u5f00\u9500<\/li>\n<li><strong>\u70ed\u6570\u636e<\/strong>\uff1ashared_buffers \u80fd\u7f13\u5b58\u591a\u5c11\uff0c\u51b3\u5b9a\u968f\u673a\u8bfb\u591a\u5c11<\/li>\n<li><strong>\u5199\u5165\u91cf<\/strong>\uff1aWAL\u3001autovacuum\u3001\u5907\u4efd\u90fd\u4f1a\u5403 IO<\/li>\n<\/ul>\n<h2 id=\"\u5185\u5b58\u600e\u4e48\u5206\">\u5185\u5b58\u600e\u4e48\u5206<\/h2>\n<p><code>shared_buffers<\/code> \u901a\u5e38\u7ed9\u7269\u7406\u5185\u5b58\u7684 25%\uff0c<code>work_mem<\/code> \u6309\u5e76\u53d1\u6392\u5e8f\/\u54c8\u5e0c\u7b97\uff0c\u522b\u8bbe\u592a\u5927\uff0c\u5426\u5219\u4e00\u4e2a\u590d\u6742\u67e5\u8be2\u5c31\u80fd\u628a\u5185\u5b58\u5403\u5149\u3002\u5269\u4f59\u7559\u7ed9\u7cfb\u7edf\u3001\u8fde\u63a5\u548c page cache\u3002<\/p>\n<pre><code># 4G \u5185\u5b58\u793a\u4f8b\nshared_buffers = 1GB\nwork_mem = 8MB\nmaintenance_work_mem = 256MB\neffective_cache_size = 3GB<\/code><\/pre>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/03de8e13358cf26.jpg\" alt=\"\u6570\u636e\u5e93 shared buffers \u4e0e work memory \u7684\u5185\u5b58\u5206\u914d\u793a\u610f\" class=\"wp-image-3422\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/03de8e13358cf26.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/03de8e13358cf26-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/03de8e13358cf26-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/03de8e13358cf26-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>shared_buffers \u7ed9 25%\uff0cwork_mem \u6309\u5e76\u53d1\u7b97\uff0c\u522b\u628a\u5185\u5b58\u5403\u5149\u3002<\/figcaption><\/figure>\n<h2 id=\"\u8fde\u63a5\u548c\u8fde\u63a5\u6c60\">\u8fde\u63a5\u548c\u8fde\u63a5\u6c60<\/h2>\n<p>PostgreSQL \u9ed8\u8ba4 <code>max_connections=100<\/code>\uff0c\u4f46 100 \u4e2a\u6d3b\u8dc3\u8fde\u63a5\u5df2\u7ecf\u5f88\u591a\u3002\u5e94\u7528\u4fa7\u7528 PgBouncer \u6216\u8fde\u63a5\u6c60\uff0c\u628a\u8fde\u63a5\u6570\u538b\u5230\u6570\u636e\u5e93\u80fd\u5904\u7406\u7684\u91cf\uff1b\u6570\u636e\u5e93\u4fa7\u6309\u5185\u5b58\u8bbe\u4e0a\u9650\uff0c\u522b\u9760\u52a0 <code>max_connections<\/code> \u786c\u625b\u3002<\/p>\n<h2 id=\"\u78c1\u76d8\u548c-io\">\u78c1\u76d8\u548c IO<\/h2>\n<p>PG \u7684\u968f\u673a\u8bfb\u5199\u3001WAL \u987a\u5e8f\u5199\u3001autovacuum \u90fd\u4f1a\u6253\u76d8\u3002\u7528\u672c\u5730 SSD \u6216\u9ad8 IOPS \u4e91\u76d8\uff0cWAL \u548c\u6570\u636e\u76d8\u5c3d\u91cf\u5206\u5f00\uff1b\u78c1\u76d8\u6ee1\u4e86 PG \u4f1a\u505c\u5199\uff0c\u751a\u81f3\u8fdb\u5165\u53ea\u8bfb\u4fdd\u62a4\u3002<\/p>\n<h2 id=\"\u914d\u7f6e\u793a\u4f8b\">\u914d\u7f6e\u793a\u4f8b<\/h2>\n<pre><code>max_connections = 100\nshared_buffers = 1GB\nwork_mem = 8MB\nmaintenance_work_mem = 256MB\nwal_level = replica\nmax_wal_size = 2GB\ncheckpoint_timeout = 15min\nautovacuum = on<\/code><\/pre>\n<p><code>wal_level=replica<\/code> \u662f\u4e3b\u4ece\u590d\u5236\u7684\u57fa\u7840\uff1b<code>max_wal_size<\/code> \u592a\u5c0f\u4f1a\u5bfc\u81f4\u9891\u7e41 checkpoint\uff0c\u592a\u5927\u5219\u6062\u590d\u6162\uff0c\u6309\u5199\u5165\u91cf\u8c03\u3002<\/p>\n<h2 id=\"\u5907\u4efd\u600e\u4e48\u505a\">\u5907\u4efd\u600e\u4e48\u505a<\/h2>\n<ul>\n<li><strong>\u903b\u8f91\u5907\u4efd<\/strong>\uff1a<code>pg_dump<\/code>\/<code>pg_dumpall<\/code>\uff0c\u9002\u5408\u5c0f\u5e93\u548c\u8fc1\u79fb<\/li>\n<li><strong>\u7269\u7406\u5907\u4efd<\/strong>\uff1a<code>pg_basebackup<\/code>\uff0c\u9002\u5408\u5927\u5e93\u548c\u5feb\u901f\u6062\u590d<\/li>\n<li><strong>WAL \u5f52\u6863<\/strong>\uff1a\u6309\u65f6\u95f4\u70b9\u6062\u590d\uff08PITR\uff09<\/li>\n<li><strong>\u5907\u4efd\u653e\u7ad9\u5916<\/strong>\uff0c\u5b9a\u671f\u505a\u6062\u590d\u6f14\u7ec3<\/li>\n<\/ul>\n<pre><code>pg_dump -Fc -U postgres appdb &gt; \/backup\/appdb.dump\npg_basebackup -D \/backup\/base -Ft -z -P -U replicator<\/code><\/pre>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/430cf04f6b07457.jpg\" alt=\"\u57fa\u7840\u5907\u4efd\u4e0e WAL \u5f52\u6863\u6d41\u5165\u5907\u4efd\u5e93\" class=\"wp-image-3423\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/430cf04f6b07457.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/430cf04f6b07457-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/430cf04f6b07457-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/430cf04f6b07457-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>pg_dump\u3001basebackup\u3001WAL \u4e09\u4ef6\u5957\uff0c\u6062\u590d\u6f14\u7ec3\u4e0d\u80fd\u5c11\u3002<\/figcaption><\/figure>\n<h2 id=\"\u4e3b\u4ece\u548c\u590d\u5236\">\u4e3b\u4ece\u548c\u590d\u5236<\/h2>\n<p>\u6d41\u590d\u5236\u505a\u4e3b\u4ece\uff0c\u4ece\u5e93\u53ef\u4ee5\u63a5\u53ea\u8bfb\u67e5\u8be2\u548c\u5907\u4efd\u3002\u6ce8\u610f\u590d\u5236\u5ef6\u8fdf\uff1a\u521a\u5199\u5b8c\u7acb\u523b\u8bfb\u4ece\u5e93\u53ef\u80fd\u8bfb\u4e0d\u5230\u3002\u5207\u6362\u8981\u786e\u8ba4\u65b0\u4e3b\u6570\u636e\u6700\u65b0\uff0c\u907f\u514d\u4e22\u4e8b\u52a1\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/5c0f18953760abd.jpg\" alt=\"\u4e3b\u5e93\u4e0e\u4ece\u5e93\u4e4b\u95f4\u7684\u6d41\u590d\u5236\u94fe\u8def\" class=\"wp-image-3424\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/5c0f18953760abd.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/5c0f18953760abd-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/5c0f18953760abd-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/5c0f18953760abd-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>\u4ece\u5e93\u63a5\u53ea\u8bfb\u548c\u5907\u4efd\uff0c\u5207\u6362\u524d\u786e\u8ba4\u590d\u5236\u5ef6\u8fdf\u3002<\/figcaption><\/figure>\n<h2 id=\"\u8c03\u4f18\u770b\u4ec0\u4e48\">\u8c03\u4f18\u770b\u4ec0\u4e48<\/h2>\n<ul>\n<li>\u6162\u67e5\u8be2\uff1a<code>pg_stat_statements<\/code> \u6309\u603b\u8017\u65f6\u6392\u5e8f<\/li>\n<li>\u7d22\u5f15\uff1a\u7f3a\u5931\u7d22\u5f15\u3001\u65e0\u7528\u7d22\u5f15\u3001\u81a8\u80c0<\/li>\n<li>autovacuum\uff1a\u6b7b\u5143\u7ec4\u591a\u3001\u8868\u81a8\u80c0<\/li>\n<li>\u8fde\u63a5\uff1a\u6d3b\u8dc3\u8fde\u63a5\u3001\u7b49\u5f85\u4e8b\u4ef6\u3001\u9501<\/li>\n<li>\u7f13\u5b58\u547d\u4e2d\uff1a<code>pg_stat_database<\/code> \u7684 blks_hit \u6bd4\u4f8b<\/li>\n<\/ul>\n<h2 id=\"\u76d1\u63a7\u6307\u6807\">\u76d1\u63a7\u6307\u6807<\/h2>\n<p>\u8fde\u63a5\u6570\u3001QPS\u3001\u6162\u67e5\u8be2\u3001\u7f13\u5b58\u547d\u4e2d\u7387\u3001\u590d\u5236\u5ef6\u8fdf\u3001\u78c1\u76d8\u4f7f\u7528\u7387\u3001checkpoint \u6b21\u6570\u3002\u547d\u4e2d\u7387\u957f\u671f\u4f4e\u4e8e 95%\uff0c\u8bf4\u660e shared_buffers \u4e0d\u591f\u6216\u67e5\u8be2\u592a\u6563\u3002<\/p>\n<h2 id=\"pgbouncer-\u600e\u4e48\u7528\">PgBouncer \u600e\u4e48\u7528<\/h2>\n<p>PgBouncer \u652f\u6301 session\u3001transaction\u3001statement \u4e09\u79cd\u6a21\u5f0f\u3002Web \u5e94\u7528\u591a\u7528 transaction \u6a21\u5f0f\uff0c\u8fde\u63a5\u590d\u7528\u7387\u9ad8\uff1b\u4f46\u8981\u6ce8\u610f\u4e8b\u52a1\u7ea7\u7279\u6027\u3001prepared statement \u548c\u4f1a\u8bdd\u53d8\u91cf\u7684\u517c\u5bb9\u6027\u3002\u5148\u5c0f\u6d41\u91cf\u9a8c\u8bc1\uff0c\u518d\u5168\u91cf\u5207\u3002<\/p>\n<h2 id=\"autovacuum-\u548c\u8868\u81a8\u80c0\">autovacuum \u548c\u8868\u81a8\u80c0<\/h2>\n<p>\u9891\u7e41\u66f4\u65b0\/\u5220\u9664\u7684\u8868\u4f1a\u4ea7\u751f\u6b7b\u5143\u7ec4\uff0cautovacuum \u8d1f\u8d23\u56de\u6536\u3002\u8868\u81a8\u80c0\u4f1a\u8ba9\u67e5\u8be2\u53d8\u6162\u3001\u78c1\u76d8\u6da8\u3002\u770b <code>pg_stat_user_tables<\/code> \u7684 n_dead_tup\uff0c\u5fc5\u8981\u65f6\u624b\u52a8 VACUUM \u6216\u8c03 autovacuum \u53c2\u6570\u3002<\/p>\n<h2 id=\"\u5907\u4efd\u6062\u590d\u6f14\u7ec3\">\u5907\u4efd\u6062\u590d\u6f14\u7ec3<\/h2>\n<p>\u5907\u4efd\u4e0d\u6f14\u7ec3\u7b49\u4e8e\u6ca1\u6709\u3002\u6bcf\u5b63\u5ea6\u7528\u5907\u4efd\u6062\u590d\u4e00\u53f0\u6d4b\u8bd5\u5e93\uff0c\u786e\u8ba4\u6570\u636e\u5b8c\u6574\u3001\u7248\u672c\u517c\u5bb9\u3001\u6062\u590d\u65f6\u95f4\u53ef\u63a5\u53d7\u3002PITR \u8981\u9a8c\u8bc1 WAL \u5f52\u6863\u662f\u5426\u8fde\u7eed\uff0c\u522b\u5230\u6062\u590d\u65f6\u624d\u53d1\u73b0\u7f3a\u6587\u4ef6\u3002<\/p>\n<h2 id=\"\u6162\u67e5\u8be2\u600e\u4e48\u770b\">\u6162\u67e5\u8be2\u600e\u4e48\u770b<\/h2>\n<p>\u5f00 <code>pg_stat_statements<\/code>\uff0c\u6309\u603b\u8017\u65f6\u548c\u5e73\u5747\u8017\u65f6\u6392\u5e8f\uff1b\u518d\u770b\u6267\u884c\u8ba1\u5212\uff0c\u786e\u8ba4\u6709\u6ca1\u6709\u5168\u8868\u626b\u63cf\u3001\u7f3a\u7d22\u5f15\u3001\u9519\u8bef\u7684\u8fde\u63a5\u987a\u5e8f\u3002\u4f18\u5316 SQL \u6bd4\u52a0\u5185\u5b58\u66f4\u6709\u6548\u3002<\/p>\n<h2 id=\"\u4e3b\u4ece\u5207\u6362\u6ce8\u610f\u4ec0\u4e48\">\u4e3b\u4ece\u5207\u6362\u6ce8\u610f\u4ec0\u4e48<\/h2>\n<p>\u5207\u6362\u524d\u786e\u8ba4\u4ece\u5e93\u590d\u5236\u5ef6\u8fdf\u4e3a 0\uff0c\u5207\u5b8c\u628a\u65e7\u4e3b\u964d\u4e3a\u4ece\u5e93\u6216\u9694\u79bb\uff0c\u907f\u514d\u53cc\u5199\u3002\u5e94\u7528\u8fde\u63a5\u4e32\u8981\u80fd\u5feb\u901f\u6307\u5411\u65b0\u4e3b\uff0c\u5207\u6362\u811a\u672c\u8981\u5e42\u7b49\u3002<\/p>\n<p>\u6ca1\u6709\u81ea\u52a8\u5207\u6362\u65b9\u6848\u65f6\uff0c\u81f3\u5c11\u51c6\u5907\u597d\u624b\u52a8\u6b65\u9aa4\u548c\u56de\u6eda\u65b9\u6848\uff0c\u522b\u7b49\u6545\u969c\u65f6\u73b0\u67e5\u6587\u6863\u3002<\/p>\n<p>\u6700\u540e\uff0c\u7ed9\u6570\u636e\u5e93\u7559 30% \u7684\u5185\u5b58\u548c\u78c1\u76d8\u4f59\u91cf\uff0c\u6309\u5b63\u5ea6\u590d\u6838\u8fde\u63a5\u6570\u3001\u7f13\u5b58\u547d\u4e2d\u7387\u548c\u6162\u67e5\u8be2\u8d8b\u52bf\uff0c\u522b\u7b49\u544a\u8b66\u624d\u8c03\u6574\u3002<\/p>\n<p>\u914d\u7f6e\u53ea\u662f\u8d77\u70b9\uff0c\u6301\u7eed\u89c2\u5bdf\u8fde\u63a5\u3001\u7f13\u5b58\u3001\u590d\u5236\u548c\u6162\u67e5\u8be2\uff0c\u624d\u80fd\u8ba9\u6570\u636e\u5e93\u7a33\u5b9a\u8dd1\u4e0b\u53bb\uff0c\u522b\u6015\u9ebb\u70e6\uff0c\u957f\u671f\u575a\u6301\u624d\u80fd\u770b\u5230\u6548\u679c\uff0c\u4e5f\u624d\u80fd\u907f\u514d\u7a81\u53d1\u6545\u969c\uff0c\u771f\u7684\u5f88\u6709\u5fc5\u8981\uff0c\u522b\u7701\u8fd9\u4e00\u6b65\u3002<\/p>\n<h2 id=\"\u5e38\u89c1\u95ee\u9898-faq\">\u5e38\u89c1\u95ee\u9898 FAQ<\/h2>\n<p><strong>Q1\uff1a2 \u6838 4G \u80fd\u8dd1 PostgreSQL \u5417\uff1f<\/strong><\/p>\n<p>\u80fd\u8dd1\u5c0f\u7ad9\uff0cshared_buffers \u7ed9 1G \u5de6\u53f3\uff0c\u8fde\u63a5\u6570\u63a7\u5236\u5728 50 \u5230 100\uff0c\u590d\u6742\u67e5\u8be2\u8981\u4f18\u5316\u3002<\/p>\n<p><strong>Q2\uff1a\u4e3a\u4ec0\u4e48\u8fde\u63a5\u6570\u4e00\u591a\u5c31\u6162\uff1f<\/strong><\/p>\n<p>PG \u6bcf\u4e2a\u8fde\u63a5\u4e00\u4e2a\u8fdb\u7a0b\uff0c\u8fde\u63a5\u591a\u4e86\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u5185\u5b58\u5f00\u9500\u90fd\u4e0a\u6765\u3002\u7528\u8fde\u63a5\u6c60\uff0c\u522b\u76f4\u63a5\u52a0 max_connections\u3002<\/p>\n<p><strong>Q3\uff1apg_dump \u548c pg_basebackup \u600e\u4e48\u9009\uff1f<\/strong><\/p>\n<p>\u5c0f\u5e93\u3001\u5355\u8868\u6062\u590d\u7528 pg_dump\uff1b\u5927\u5e93\u3001\u6574\u5e93\u5feb\u901f\u6062\u590d\u7528 pg_basebackup\uff0c\u518d\u914d\u5408 WAL \u505a PITR\u3002<\/p>\n<p><strong>Q4\uff1aautovacuum \u8981\u4e0d\u8981\u5f00\uff1f<\/strong><\/p>\n<p>\u5fc5\u987b\u5f00\u3002\u5b83\u53ef\u4ee5\u56de\u6536\u6b7b\u5143\u7ec4\u3001\u66f4\u65b0\u7edf\u8ba1\u4fe1\u606f\uff1b\u4e0d\u5f00\u4f1a\u5bfc\u81f4\u8868\u81a8\u80c0\u548c\u67e5\u8be2\u53d8\u6162\u3002<\/p>\n<p><strong>Q5\uff1a\u4e91\u6570\u636e\u5e93\u548c\u81ea\u5efa\u600e\u4e48\u9009\uff1f<\/strong><\/p>\n<p>\u4e0d\u60f3\u8fd0\u7ef4\u3001\u8981\u81ea\u52a8\u5907\u4efd\u548c\u4e3b\u4ece\uff0c\u9009\u4e91\u6570\u636e\u5e93\uff1b\u8981\u81ea\u5b9a\u4e49\u53c2\u6570\u3001\u63a7\u5236\u6210\u672c\uff0c\u81ea\u5efa\u66f4\u7075\u6d3b\u3002<\/p>\n<h2 id=\"\u603b\u7ed3\">\u603b\u7ed3<\/h2>\n<p>PostgreSQL \u9009\u914d\u7f6e\uff0c\u5148\u7b97\u8fde\u63a5\u6570\u548c\u70ed\u6570\u636e\uff0cshared_buffers \u7ed9 25%\uff0c\u8fde\u63a5\u6c60\u538b\u8fde\u63a5\u6570\uff0c\u78c1\u76d8\u9009\u9ad8 IOPS\u3002\u5907\u4efd\u7528 pg_dump + basebackup + WAL\uff0c\u4e3b\u4ece\u6ce8\u610f\u5ef6\u8fdf\u3002<\/p>\n<p>\u9700\u8981\u4e00\u53f0\u72ec\u7acb\u6570\u636e\u5e93\u673a\u5668\u505a\u6d4b\u8bd5\u6216\u4ece\u5e93\uff0c\u53ef\u4ee5\u6309\u5c0f\u65f6\u5f00\u4e00\u53f0<a href=\"https:\/\/www.ygcloud.com\/vps\/hong-kong-cn2-vps\">\u8424\u5149\u4e91\u9999\u6e2f CN2 VPS<\/a>\uff0c\u5148\u8dd1\u771f\u5b9e\u6570\u636e\u3002<\/p>\n<h2 id=\"\u76f8\u5173\u63a8\u8350\">\u76f8\u5173\u63a8\u8350<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3365\/\">\u4e91\u670d\u52a1\u5668\u8dd1 MySQL \u600e\u4e48\u9009\u914d\u7f6e\uff1f2 \u6838 4G \u80fd\u6491\u591a\u5c11<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3395\/\">\u4e91\u670d\u52a1\u5668 Redis \u600e\u4e48\u9009\u914d\u7f6e\uff1f\u6301\u4e45\u5316\u3001\u5185\u5b58\u4e0e\u5907\u4efd<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/1951\/\">Docker \u90e8\u7f72\u5e94\u7528\u9700\u8981\u591a\u5927 VPS \u914d\u7f6e\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3249\/\">VPS \u8d85\u552e\u662f\u4ec0\u4e48\uff1f\u600e\u4e48\u5224\u65ad\u4fbf\u5b9c VPS \u6709\u6ca1\u6709\u8d85\u552e<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/888\/\">VPS \u5b89\u5168\u8bbe\u7f6e\u6307\u5357\uff1a\u65b0\u670d\u52a1\u5668\u4e0a\u7ebf\u524d\u7684 12 \u9879\u68c0\u67e5<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5148\u8bf4\u7ed3\u8bba\uff1aPostgreSQL \u662f\u8fdb\u7a0b\u6a21\u578b\uff0c\u6bcf\u4e2a\u8fde\u63a5\u4e00\u4e2a\u8fdb\u7a0b\uff0c\u6bd4 MySQL \u66f4\u5403\u5185\u5b58\u548c\u8fde\u63a5\u6570\u3002\u9009\u914d\u7f6e\u5148\u770b\u8fde\u63a5\u6570\u548c\u6570\u636e\u70ed\u533a\uff0c\u518d\u770b CPU\uff1b2 \u6838 4G \u80fd\u8dd1\u5c0f\u7ad9\uff0c4 \u6838 8G \u9002\u5408\u4e2d\u578b\u4e1a\u52a1\uff0c\u8fde\u63a5\u6570\u4e00\u591a\u5c31\u8981\u4e0a\u8fde\u63a5\u6c60\uff0c\u5426\u5219\u52a0\u5185\u5b58\u4e5f\u625b\u4e0d\u4f4f\u3002 \u4e09\u7b14&#8230;<\/p>\n","protected":false},"author":1,"featured_media":3421,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[43,46],"topic":[],"class_list":["post-3425","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-100","tag-vps"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u4e91\u670d\u52a1\u5668 PostgreSQL\uff1a\u914d\u7f6e\u3001\u5907\u4efd\u4e0e\u8c03\u4f18<\/title>\n<meta name=\"description\" content=\"\u4e91\u670d\u52a1\u5668\u8dd1 PostgreSQL \u600e\u4e48\u9009\u914d\u7f6e\uff1f\u4ece shared_buffers\u3001\u8fde\u63a5\u6c60\u3001\u78c1\u76d8 IO \u5230 pg_dump\u3001basebackup\u3001WAL \u548c\u4e3b\u4ece\u590d\u5236\uff0c\u7ed9\u51fa\u53ef\u6267\u884c\u7684\u914d\u7f6e\u6e05\u5355\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, 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