{"id":30728,"date":"2026-07-22T12:00:00","date_gmt":"2026-07-22T04:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=30728"},"modified":"2026-07-22T17:19:46","modified_gmt":"2026-07-22T09:19:46","slug":"redis-rdb-aof-comparison","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/redis-rdb-aof-comparison\/","title":{"rendered":"Redis \u6301\u4e45\u5316\u7b56\u7565 RDB \u4e0e AOF \u5bf9\u6bd4"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/07\/cover.webp\" alt=\"Redis \u6301\u4e45\u5316\u7b56\u7565 RDB \u4e0e AOF \u5bf9\u6bd4\u5168\u666f\" loading=\"lazy\" \/><\/p>\n<p>\u672c\u6587\u6559\u4f60\u5982\u4f55\u5728 30 \u5206\u949f\u5185\u4e3a\u751f\u4ea7\u73af\u5883\u7684 Redis \u9009\u62e9\u6b63\u786e\u7684\u6301\u4e45\u5316\u7b56\u7565\uff0c\u628a&#8221;\u673a\u5668\u91cd\u542f\u6570\u636e\u5168\u4e22&#8221;\u4e0e&#8221;AOF \u5199\u653e\u5927\u62d6\u6162\u4e1a\u52a1&#8221;\u4e24\u7c7b\u5178\u578b\u95ee\u9898\u4e00\u6b21\u6027\u89c4\u907f\u6389\u3002\u8bfb\u5b8c\u672c\u6587\u4f60\u4f1a\u62ff\u5230\u4e09\u4ef6\u53ef\u76f4\u63a5\u843d\u5730\u7684\u4ea7\u51fa\uff1a\u7b2c\u4e00\uff0cRDB \u4e0e AOF \u7684\u5de5\u4f5c\u673a\u5236\u5bf9\u7167\u8868\uff0c\u542b\u89e6\u53d1\u6761\u4ef6\u3001\u78c1\u76d8\u5f00\u9500\u3001\u6062\u590d\u901f\u5ea6\u4e09\u7ef4\u5ea6\u8bc4\u4f30\uff1b\u7b2c\u4e8c\uff0c\u4e09\u79cd\u5178\u578b\u4e1a\u52a1\u573a\u666f\u4e0b\u7684\u63a8\u8350\u53c2\u6570\u6a21\u677f\uff08\u7eaf\u7f13\u5b58\u3001\u4f1a\u8bdd\u5b58\u50a8\u3001\u8f7b\u91cf KV \u4e3b\u6570\u636e\uff09\uff1b\u7b2c\u4e09\uff0cRedis 4.0 \u5f15\u5165\u7684\u6df7\u5408\u6301\u4e45\u5316\uff08RDB-AOF\uff09\u7684\u5f00\u542f\u65b9\u6cd5\u4e0e\u56de\u9000\u65b9\u6848\u3002\u672c\u6587\u9ed8\u8ba4\u4f7f\u7528 Redis 7.x\uff0c\u53c2\u6570\u540c\u6837\u9002\u7528\u4e8e Redis 6.2 LTS\u3002<\/p>\n<h2>\u4e00\u3001\u4e3a\u4ec0\u4e48 Redis \u91cd\u542f\u540e\u6570\u636e\u53ef\u80fd\u5168\u90e8\u6d88\u5931<\/h2>\n<p>\u5982\u4f55\u8ba9 Redis \u5728\u8fdb\u7a0b\u91cd\u542f\u6216\u673a\u5668\u5b95\u673a\u540e\u4e0d\u4e22\u6570\u636e\uff0c\u662f\u7f13\u5b58\u5c42\u8fd0\u7ef4\u8981\u5148\u56de\u7b54\u7684\u95ee\u9898\u3002Redis \u9ed8\u8ba4\u5728\u6ca1\u6709\u663e\u5f0f\u914d\u7f6e\u65f6<strong>\u4f1a<\/strong>\u4fdd\u7559 redis.conf \u91cc\u7684 save \u89c4\u5219\uff0c\u4f46\u5f88\u591a\u56e2\u961f\u4e3a\u4e86\u907f\u514d\u963b\u585e\u4f1a\u628a save \u5168\u6ce8\u91ca\uff0c\u5e76\u4e14\u4e0d\u5f00 AOF\uff0c\u7ed3\u679c\u5c31\u662f\u673a\u5668\u4e00\u65e6\u91cd\u542f\uff0c\u6240\u6709 key \u76f4\u63a5\u6e05\u96f6\u3002\u5982\u679c\u4e1a\u52a1\u53ea\u662f\u628a Redis \u5f53\u65e0\u72b6\u6001\u7f13\u5b58\uff0c\u8fd9\u4e2a\u884c\u4e3a\u6ca1\u95ee\u9898\uff1b\u4f46\u5982\u679c\u4f60\u628a Session\u3001\u9650\u6d41\u8ba1\u6570\u3001\u8ba2\u5355\u53bb\u91cd\u7b49\u4e1a\u52a1\u72b6\u6001\u4e5f\u653e\u5728 Redis \u4e0a\uff0c\u5c31\u5fc5\u987b\u663e\u5f0f\u9009\u4e00\u79cd\u6301\u4e45\u5316\u7b56\u7565\u3002<\/p>\n<p>Redis \u63d0\u4f9b\u4e24\u79cd\u6301\u4e45\u5316\u673a\u5236\uff1aRDB \u662f\u5b9a\u671f\u5feb\u7167\uff08\u6309\u65f6\u95f4\u6216\u5199\u5165\u6b21\u6570\u89e6\u53d1 fork \u5b50\u8fdb\u7a0b\u628a\u5185\u5b58\u5199\u6210\u4e8c\u8fdb\u5236\u6587\u4ef6\uff09\uff0cAOF \u662f\u8ffd\u52a0\u65e5\u5fd7\uff08\u628a\u6bcf\u6761\u5199\u547d\u4ee4\u4ee5\u534f\u8bae\u683c\u5f0f\u8ffd\u52a0\u5230\u6587\u4ef6\uff09\u3002\u4e24\u8005\u53ef\u4ee5\u5355\u72ec\u7528\uff0c\u4e5f\u53ef\u4ee5\u4e00\u8d77\u7528\u3002\u5982\u679c\u4f60\u6b63\u5728\u4e3a\u7f13\u5b58\u5c42\u6311\u9009\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u53c2\u8003<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/cloud-server-buying-guide\/\">\u4e91\u670d\u52a1\u5668\u9009\u8d2d\u6307\u5357<\/a>\u4e2d\u5173\u4e8e\u5185\u5b58\u4e0e\u78c1\u76d8 IO \u7684\u90e8\u5206\u3002\u4e91\u670d\u52a1\u5668\uff08\u5373\u901a\u8fc7\u865a\u62df\u5316\u6280\u672f\u4ece<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u7269\u7406\u670d\u52a1\u5668<\/a>\u96c6\u7fa4\u4e2d\u5207\u5206\u51fa\u7684\u5f39\u6027\u8ba1\u7b97\u8d44\u6e90\uff09\u505a Redis \u65f6\u8981\u7ed9 RDB \u7684 fork \u9884\u7559\u81f3\u5c11 30% \u5185\u5b58\u4f59\u91cf\uff0c\u5426\u5219\u53ef\u80fd OOM\u3002<\/p>\n<h2>\u4e8c\u3001RDB \u4e0e AOF \u7684\u5de5\u4f5c\u673a\u5236\u5bf9\u7167<\/h2>\n<p>\u7406\u89e3\u4e24\u79cd\u673a\u5236\u7684\u672c\u8d28\u5dee\u5f02\uff0c\u6bd4\u6b7b\u8bb0\u786c\u80cc\u53c2\u6570\u6709\u7528\u5f97\u591a\u3002\u6838\u5fc3\u533a\u522b\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u89e6\u53d1\u65b9\u5f0f\uff1aRDB \u6309 save \u89c4\u5219\u6216 BGSAVE \u547d\u4ee4\u89e6\u53d1\uff1bAOF \u6bcf\u6b21\u5199\u547d\u4ee4\u90fd\u8ffd\u52a0\uff0c\u7531 appendfsync \u63a7\u5236\u4f55\u65f6 fsync<\/li>\n<li>\u6587\u4ef6\u7279\u70b9\uff1aRDB \u662f\u7d27\u51d1\u4e8c\u8fdb\u5236\u5feb\u7167\uff0c\u6587\u4ef6\u6700\u5c0f\uff1bAOF \u662f\u6587\u672c\u534f\u8bae\u65e5\u5fd7\uff0c\u4f53\u79ef\u901a\u5e38\u662f RDB \u7684 3 \u5230 5 \u500d<\/li>\n<li>\u6570\u636e\u4e22\u5931\u7a97\u53e3\uff1aRDB \u5728\u4e24\u6b21\u5feb\u7167\u4e4b\u95f4\u5d29\u6e83\u5c31\u4e22\u5931\u4e4b\u95f4\u6240\u6709\u5199\u5165\uff1bAOF \u6309 fsync \u7b56\u7565\u53ef\u63a7\u5236\u5728 1 \u79d2\u4ee5\u5185<\/li>\n<li>\u6062\u590d\u901f\u5ea6\uff1aRDB \u8bfb\u53d6\u901f\u5ea6\u6700\u5feb\uff0c\u5927\u6570\u636e\u96c6\u51b7\u542f\u52a8\u53ea\u8981\u51e0\u5341\u79d2\uff1bAOF \u9700\u8981\u9010\u6761 replay \u5168\u90e8\u547d\u4ee4\uff0c\u53ef\u80fd\u6570\u500d\u4e8e RDB<\/li>\n<li>\u4e3b\u4ece\u540c\u6b65\uff1aRDB \u7528\u4e8e\u5168\u91cf\u540c\u6b65\u521d\u59cb\u5316\uff0cAOF \u4e0d\u7528\u4e8e\u4e3b\u4ece\u76f4\u63a5\u4f20\u8f93<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/07\/redis-rdb-aof-comparison-chart.webp\" alt=\"RDB \u4e0e AOF \u5de5\u4f5c\u673a\u5236\u5bf9\u6bd4\" loading=\"lazy\" \/><\/p>\n<p>\u53ea\u7528 RDB \u7684\u597d\u5904\u662f\u6027\u80fd\u6700\u597d\u3001\u6587\u4ef6\u6700\u5c0f\uff0c\u7f3a\u70b9\u662f\u4f1a\u4e22\u4e24\u6b21\u5feb\u7167\u4e4b\u95f4\u7684\u6570\u636e\u3002\u53ea\u7528 AOF \u7684\u597d\u5904\u662f\u6700\u591a\u4e22 1 \u79d2\u6570\u636e\uff0c\u7f3a\u70b9\u662f\u6587\u4ef6\u5927\u3001\u6062\u590d\u6162\u3002<a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS<\/a>\uff08Virtual Private Server\uff0c<a href=\"https:\/\/cn.hostease.com\/vps\/\">\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff0c\u901a\u8fc7\u865a\u62df\u5316\u5212\u5206\u7684\u72ec\u7acb\u5b9e\u4f8b\uff09\u90e8\u7f72\u65f6\u78c1\u76d8 IOPS \u662f AOF fsync \u7b56\u7565\u7684\u5173\u952e\u74f6\u9888\uff0c\u8981\u6309\u4e1a\u52a1\u7684\u5199 QPS \u53cd\u63a8\u78c1\u76d8\u9009\u578b\u3002\u5177\u4f53\u78c1\u76d8\u7c7b\u578b\u8bc4\u4f30\u53ef\u5bf9\u7167<a href=\"https:\/\/cn.hostease.com\/blog\/tutorials\/us-vps-deployment-tutorial-guide\/\">\u7f8e\u56fd VPS \u90e8\u7f72\u6559\u7a0b<\/a>\u91cc\u5173\u4e8e SATA SSD \u4e0e NVMe SSD \u7684\u5dee\u5f02\u90e8\u5206\u3002Hostease \u7684 VPS \u65b9\u6848\u9ed8\u8ba4\u914d\u5907 NVMe SSD\uff0c\u5728\u9ad8\u5199\u5165\u573a\u666f\u4e0b\u80fd\u6709\u6548\u964d\u4f4e AOF fsync \u5ef6\u8fdf\u3002<\/p>\n<h2>\u4e09\u3001\u4e09\u79cd\u5178\u578b\u573a\u666f\u7684\u53c2\u6570\u6a21\u677f<\/h2>\n<p>\u6309\u4e1a\u52a1\u5bf9\u6570\u636e\u5b89\u5168\u7684\u5bb9\u5fcd\u5ea6\uff0c\u628a\u751f\u4ea7\u573a\u666f\u5206\u6210\u4e09\u7c7b\uff1a<\/p>\n<ul>\n<li>\u7eaf\u7f13\u5b58\uff08\u547d\u4e2d\u5931\u8d25\u65f6\u56de\u6e90\u6570\u636e\u5e93\u5373\u53ef\uff09\uff1a\u53ef\u4ee5\u5b8c\u5168\u5173\u95ed\u6301\u4e45\u5316\uff0csave &#8220;&#8221; \u4e0e appendonly no<\/li>\n<li>\u4f1a\u8bdd\u5b58\u50a8\uff08\u7528\u6237\u767b\u5f55\u6001\u4e22\u5931\u8981\u91cd\u767b\uff0c\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\uff09\uff1a\u7528 RDB\uff0csave 900 1\u3001save 300 10\u3001save 60 10000<\/li>\n<li>\u8f7b\u91cf KV \u4e3b\u6570\u636e\uff08\u9650\u6d41\u8ba1\u6570\u3001\u8ba2\u5355\u53bb\u91cd\u7b49\u4e0d\u80fd\u4e22\uff09\uff1a\u6df7\u5408\u6301\u4e45\u5316\uff0caof-use-rdb-preamble yes\u3001appendonly yes\u3001appendfsync everysec<\/li>\n<\/ul>\n<p>appendfsync\uff08\u63a7\u5236 AOF \u5199\u5165\u78c1\u76d8\u7684\u65f6\u673a\uff09\u6709\u4e09\u4e2a\u53d6\u503c\uff1aalways \u6bcf\u6761\u5199\u547d\u4ee4\u90fd fsync\uff0c\u6027\u80fd\u6700\u5dee\u4f46\u6700\u5b89\u5168\uff1beverysec \u6bcf\u79d2 fsync \u4e00\u6b21\uff0c\u6700\u5e38\u7528\uff1bno \u5b8c\u5168\u4ea4\u7ed9\u64cd\u4f5c\u7cfb\u7edf\uff0c\u6027\u80fd\u6700\u597d\u4f46\u4e0d\u53ef\u63a7\u3002\u751f\u4ea7\u73af\u5883\u7edd\u5927\u591a\u6570\u573a\u666f\u5e94\u8be5\u7528 everysec\u3002auto-aof-rewrite-percentage \u4e0e auto-aof-rewrite-min-size \u63a7\u5236 AOF \u91cd\u5199\u89e6\u53d1\uff0c\u9ed8\u8ba4 100% \u4e0e 64MB \u5728\u5c0f\u5185\u5b58\u573a\u666f\u504f\u6fc0\u8fdb\uff0c1 GB \u4ee5\u4e0a\u7684\u5b9e\u4f8b\u5efa\u8bae\u628a min-size \u63d0\u5230 1 GB\uff0c\u907f\u514d\u91cd\u5199\u8fc7\u4e8e\u9891\u7e41\u3002<\/p>\n<h2>\u56db\u3001\u6df7\u5408\u6301\u4e45\u5316\u4e0e\u65e5\u5e38\u8fd0\u7ef4\u5efa\u8bae<\/h2>\n<p>Redis 4.0 \u5f15\u5165\u7684\u6df7\u5408\u6301\u4e45\u5316\uff08aof-use-rdb-preamble yes\uff09\u628a RDB \u4e0e AOF \u7684\u4f18\u70b9\u5408\u5728\u4e00\u8d77\uff1aAOF \u6587\u4ef6\u7684\u524d\u534a\u6bb5\u662f RDB \u4e8c\u8fdb\u5236\u5feb\u7167\uff0c\u540e\u534a\u6bb5\u662f\u4e0a\u6b21\u91cd\u5199\u540e\u8ffd\u52a0\u7684\u589e\u91cf\u547d\u4ee4\u3002\u6062\u590d\u65f6\u5148\u5feb\u8bfb RDB \u90e8\u5206\uff0c\u518d replay \u672b\u5c3e\u5c11\u91cf\u547d\u4ee4\uff0c\u6bd4\u7eaf AOF \u6062\u590d\u5feb\u597d\u51e0\u500d\uff0c\u540c\u65f6\u4fdd\u7559\u4e86\u6700\u591a 1 \u79d2\u6570\u636e\u4e22\u5931\u7a97\u53e3\u7684\u5b89\u5168\u6027\u3002Redis 7 \u9ed8\u8ba4\u5c31\u5f00\u542f\u6df7\u5408\u6301\u4e45\u5316\uff0c\u4ece Redis 6 \u5347\u7ea7\u65f6\u68c0\u67e5 redis.conf \u662f\u5426\u5e26\u4e0a\u8fd9\u4e00\u884c\u5373\u53ef\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/07\/redis-rdb-aof-hybrid.webp\" alt=\"Redis \u6df7\u5408\u6301\u4e45\u5316\u67b6\u6784\" loading=\"lazy\" \/><\/p>\n<p>\u65e5\u5e38\u8fd0\u7ef4\u4e09\u4ef6\u4e8b\u5efa\u8bae\u4f60\u4eca\u5929\u5c31\u505a\u5b8c\uff1a\u7b2c\u4e00\uff0c\u786e\u8ba4\u6bcf\u53f0 Redis \u5b9e\u4f8b redis.conf \u4e2d\u7684\u6301\u4e45\u5316\u7b56\u7565\u4e0e\u4e1a\u52a1\u5bf9\u6570\u636e\u4e22\u5931\u7684\u5bb9\u5fcd\u5ea6\u5bf9\u9f50\uff1b\u7b2c\u4e8c\uff0c\u8dd1\u4e00\u6b21 BGSAVE \u4e0e BGREWRITEAOF\uff0c\u89c2\u5bdf latency \u76d1\u63a7\u91cc\u662f\u5426\u6709 fork \u5f15\u8d77\u7684\u5c16\u5cf0\uff1b\u7b2c\u4e09\uff0c\u628a RDB \u5feb\u7167\u6309\u5929\u5f02\u5730\u5907\u4efd\u5230\u5bf9\u8c61\u5b58\u50a8\u6216\u53e6\u4e00\u53f0\u673a\u5668\uff0c\u907f\u514d\u5355\u70b9\u78c1\u76d8\u635f\u574f\u5bfc\u81f4\u4e24\u79cd\u6301\u4e45\u5316\u6587\u4ef6\u540c\u65f6\u4e22\u5931\u3002\u5982\u679c\u4f60\u7684 Redis \u540c\u65f6\u627f\u62c5 WordPress \u7684\u5bf9\u8c61\u7f13\u5b58\uff0c\u53ef\u4ee5\u53c2\u8003<a href=\"https:\/\/cn.hostease.com\/blog\/wordpress\/wordpress-w3-total-cache-tuning\/\">WordPress \u6027\u80fd\u8c03\u4f18\u5b9e\u6218<\/a>\u4e0e<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/wordpress-shared-hosting-deployment\/\">WordPress \u9999\u6e2f\u4e3b\u673a\u8d2d\u4e70\u6307\u5357<\/a>\u91cc\u7684\u7f13\u5b58\u5c42\u89c4\u5212\u3002\u603b\u7ed3\u6765\u8bf4\uff0cRDB \u4e0e AOF \u4e0d\u662f\u4e8c\u9009\u4e00\u7684\u5bf9\u7acb\u5173\u7cfb\uff0c\u800c\u662f\u4e24\u79cd\u4e92\u8865\u673a\u5236\uff0c\u6df7\u5408\u6301\u4e45\u5316\u52a0 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