{"id":201448,"date":"2025-05-10T10:19:23","date_gmt":"2025-05-10T02:19:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201448\/"},"modified":"2025-05-10T10:19:23","modified_gmt":"2025-05-10T02:19:23","slug":"%e4%b8%80%e6%96%87%e6%90%9e%e5%ae%9aredis%e9%ab%98%e5%8f%af%e7%94%a8%e7%89%b9%e6%80%a7%e6%8c%81%e4%b9%85%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201448\/","title":{"rendered":"\u4e00\u6587\u641e\u5b9aRedis\u9ad8\u53ef\u7528\u7279\u6027\u201c\u6301\u4e45\u5316\u201d"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u4e00\u6587\u641e\u5b9aRedis\u9ad8\u53ef\u7528\u7279\u6027\u201c\u6301\u4e45\u5316\u201d<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4eb2\u7231\u7684\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5982\u679c\u4f60\u70b9\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u8bf4\u660e\u4f60\u5bf9\u300a\u4e00\u6587\u641e\u5b9aRedis\u9ad8\u53ef\u7528\u7279\u6027\u201c\u6301\u4e45\u5316\u201d\u300b\u5f88\u611f\u5174\u8da3\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u6790\u4e00\u4e0b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0bRedis\u3001\u9ad8\u53ef\u7528\u3001AOF\uff0c\u5e0c\u671b\u6240\u6709\u8ba4\u771f\u8bfb\u5b8c\u7684\u7ae5\u978b\u4eec\uff0c\u90fd\u6709\u5b9e\u8d28\u6027\u7684\u63d0\u9ad8\u3002<\/p>\n<p>&nbsp;\u5728\u4e2d\uff0c\u4ecb\u7ecd\u4e86\u300aRedis\u7684\u5185\u5b58\u6a21\u578b\u300b\uff0c\u4ece\u8fd9\u7bc7\u6587\u7ae0\u5f00\u59cb\uff0c\u5c06\u4f9d\u6b21\u4ecb\u7ecd Redis \u9ad8\u53ef\u7528\u76f8\u5173\u7684\u77e5\u8bc6\u2014\u2014\u6301\u4e45\u5316\u3001\u590d\u5236(\u53ca\u8bfb\u5199\u5206\u79bb)\u3001\u54e8\u5175\u3001\u4ee5\u53ca\u96c6\u7fa4\u3002<\/p>\n<p>\u672c\u6587\u5c06\u5148\u8bf4\u660e\u4e0a\u8ff0\u51e0\u79cd\u6280\u672f\u5206\u522b\u89e3\u51b3\u4e86 Redis \u9ad8\u53ef\u7528\u7684\u4ec0\u4e48\u95ee\u9898\uff0c\u7136\u540e\u8be6\u7ec6\u4ecb\u7ecd Redis \u7684\u6301\u4e45\u5316\u6280\u672f\uff0c\u4e3b\u8981\u662f RDB \u548c AOF \u4e24\u79cd\u6301\u4e45\u5316\u65b9\u6848\u3002<\/p>\n<p>\u5728\u4ecb\u7ecd RDB \u548c AOF \u65b9\u6848\u65f6\uff0c\u4e0d\u4ec5\u4ecb\u7ecd\u5b83\u7684\u4f5c\u7528\u53ca\u64cd\u4f5c\u65b9\u6cd5\uff0c\u540c\u65f6\u4ecb\u7ecd\u6301\u4e45\u5316\u5b9e\u73b0\u7684\u4e00\u4e9b\u539f\u7406\u7ec6\u8282\u53ca\u9700\u8981\u6ce8\u610f\u7684\u95ee\u9898\u3002***\uff0c\u4ecb\u7ecd\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u6301\u4e45\u5316\u65b9\u6848\u7684\u9009\u62e9\uff0c\u4ee5\u53ca\u7ecf\u5e38\u9047\u5230\u7684\u95ee\u9898\u7b49\u3002<\/p>\n<p>\u4e0b\u9762\u5206\u522b\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u8bb2\u89e3\uff1a<\/p>\n<ul>\n<li>\n<p>Redis \u9ad8\u53ef\u7528\u6982\u8ff0<\/p>\n<\/li>\n<li>\n<p>Redis \u6301\u4e45\u5316\u6982\u8ff0<\/p>\n<\/li>\n<li>\n<p>RDB \u6301\u4e45\u5316<\/p>\n<\/li>\n<li>\n<p>AOF \u6301\u4e45\u5316<\/p>\n<\/li>\n<li>\n<p>\u65b9\u6848\u9009\u62e9\u4e0e\u5e38\u89c1\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>\u603b\u7ed3<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: x-large\">Redis \u9ad8\u53ef\u7528\u6982\u8ff0<\/span><\/strong><\/p>\n<p>\u5728\u4ecb\u7ecd Redis \u9ad8\u53ef\u7528\u4e4b\u524d\uff0c\u5148\u8bf4\u660e\u4e00\u4e0b\u5728 Redis \u7684\u8bed\u5883\u4e2d\u9ad8\u53ef\u7528\u7684\u542b\u4e49\u3002\u5728 Web \u670d\u52a1\u5668\u4e2d\uff0c\u9ad8\u53ef\u7528\u662f\u6307\u670d\u52a1\u5668\u53ef\u4ee5\u6b63\u5e38\u8bbf\u95ee\u7684\u65f6\u95f4\uff0c\u8861\u91cf\u7684\u6807\u51c6\u662f\u5728\u591a\u957f\u65f6\u95f4\u5185\u53ef\u4ee5\u63d0\u4f9b\u6b63\u5e38\u670d\u52a1\uff0899.9%\u300199.99%\u300199.999% \u7b49\u7b49\uff09\u3002<\/p>\n<p>\u4f46\u662f\u5728 Redis \u8bed\u5883\u4e2d\uff0c\u9ad8\u53ef\u7528\u7684\u542b\u4e49\u4f3c\u4e4e\u8981\u5bbd\u6cdb\u4e00\u4e9b\uff0c\u9664\u4e86\u4fdd\u8bc1\u63d0\u4f9b\u6b63\u5e38\u670d\u52a1(\u5982\u4e3b\u4ece\u5206\u79bb\u3001\u5feb\u901f\u5bb9\u707e\u6280\u672f)\uff0c\u8fd8\u9700\u8981\u8003\u8651\u6570\u636e\u5bb9\u91cf\u7684\u6269\u5c55\u3001\u6570\u636e\u5b89\u5168\u4e0d\u4f1a\u4e22\u5931\u7b49\u3002<\/p>\n<p>\u5728 Redis \u4e2d\uff0c\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u6280\u672f\u4e3b\u8981\u5305\u62ec\u6301\u4e45\u5316\u3001\u590d\u5236\u3001\u54e8\u5175\u548c\u96c6\u7fa4\uff0c\u4e0b\u9762\u5206\u522b\u8bf4\u660e\u5b83\u4eec\u7684\u4f5c\u7528\uff0c\u4ee5\u53ca\u89e3\u51b3\u4e86\u4ec0\u4e48\u6837\u7684\u95ee\u9898\uff1a<\/p>\n<p>\u6301\u4e45\u5316\uff1a\u6301\u4e45\u5316\u662f\u6700\u7b80\u5355\u7684\u9ad8\u53ef\u7528\u65b9\u6cd5(\u6709\u65f6\u751a\u81f3\u4e0d\u88ab\u5f52\u4e3a\u9ad8\u53ef\u7528\u7684\u624b\u6bb5)\uff0c\u4e3b\u8981\u4f5c\u7528\u662f\u6570\u636e\u5907\u4efd\uff0c\u5373\u5c06\u6570\u636e\u5b58\u50a8\u5728\u786c\u76d8\uff0c\u4fdd\u8bc1\u6570\u636e\u4e0d\u4f1a\u56e0\u8fdb\u7a0b\u9000\u51fa\u800c\u4e22\u5931\u3002<\/p>\n<p>\u590d\u5236\uff1a\u590d\u5236\u662f\u9ad8\u53ef\u7528 Redis \u7684\u57fa\u7840\uff0c\u54e8\u5175\u548c\u96c6\u7fa4\u90fd\u662f\u5728\u590d\u5236\u57fa\u7840\u4e0a\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u3002\u590d\u5236\u4e3b\u8981\u5b9e\u73b0\u4e86\u6570\u636e\u7684\u591a\u673a\u5907\u4efd\uff0c\u4ee5\u53ca\u5bf9\u4e8e\u8bfb\u64cd\u4f5c\u7684\u8d1f\u8f7d\u5747\u8861\u548c\u7b80\u5355\u7684\u6545\u969c\u6062\u590d\u3002<\/p>\n<p>\u7f3a\u9677\uff1a\u6545\u969c\u6062\u590d\u65e0\u6cd5\u81ea\u52a8\u5316\uff0c\u5199\u64cd\u4f5c\u65e0\u6cd5\u8d1f\u8f7d\u5747\u8861\uff0c\u5b58\u50a8\u80fd\u529b\u53d7\u5230\u5355\u673a\u7684\u9650\u5236\u3002<\/p>\n<p>\u54e8\u5175\uff1a\u5728\u590d\u5236\u7684\u57fa\u7840\u4e0a\uff0c\u54e8\u5175\u5b9e\u73b0\u4e86\u81ea\u52a8\u5316\u7684\u6545\u969c\u6062\u590d\u3002<\/p>\n<p>\u7f3a\u9677\uff1a\u5199\u64cd\u4f5c\u65e0\u6cd5\u8d1f\u8f7d\u5747\u8861\uff1b\u5b58\u50a8\u80fd\u529b\u53d7\u5230\u5355\u673a\u7684\u9650\u5236\u3002<\/p>\n<p>\u96c6\u7fa4\uff1a\u901a\u8fc7\u96c6\u7fa4\uff0cRedis \u89e3\u51b3\u4e86\u5199\u64cd\u4f5c\u65e0\u6cd5\u8d1f\u8f7d\u5747\u8861\uff0c\u4ee5\u53ca\u5b58\u50a8\u80fd\u529b\u53d7\u5230\u5355\u673a\u9650\u5236\u7684\u95ee\u9898\uff0c\u5b9e\u73b0\u4e86\u8f83\u4e3a\u5b8c\u5584\u7684\u9ad8\u53ef\u7528\u65b9\u6848\u3002<\/p>\n<p><strong><span style=\"font-size: x-large\">Redis \u6301\u4e45\u5316\u6982\u8ff0<\/span><\/strong><\/p>\n<p>\u6301\u4e45\u5316\u7684\u529f\u80fd\uff1aRedis \u662f\u5185\u5b58\u6570\u636e\u5e93\uff0c\u6570\u636e\u90fd\u662f\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u3002<\/p>\n<p>\u4e3a\u4e86\u907f\u514d\u8fdb\u7a0b\u9000\u51fa\u5bfc\u81f4\u6570\u636e\u7684***\u4e22\u5931\uff0c\u9700\u8981\u5b9a\u671f\u5c06 Redis \u4e2d\u7684\u6570\u636e\u4ee5\u67d0\u79cd\u5f62\u5f0f(\u6570\u636e\u6216\u547d\u4ee4)\u4ece\u5185\u5b58\u4fdd\u5b58\u5230\u786c\u76d8\uff1b\u5f53\u4e0b\u6b21 Redis \u91cd\u542f\u65f6\uff0c\u5229\u7528\u6301\u4e45\u5316\u6587\u4ef6\u5b9e\u73b0\u6570\u636e\u6062\u590d\u3002<\/p>\n<p>\u9664\u6b64\u4e4b\u5916\uff0c\u4e3a\u4e86\u8fdb\u884c\u707e\u96be\u5907\u4efd\uff0c\u53ef\u4ee5\u5c06\u6301\u4e45\u5316\u6587\u4ef6\u62f7\u8d1d\u5230\u4e00\u4e2a\u8fdc\u7a0b\u4f4d\u7f6e\u3002<\/p>\n<p>Redis \u6301\u4e45\u5316\u5206\u4e3a RDB \u6301\u4e45\u5316\u548c AOF \u6301\u4e45\u5316\uff1a<\/p>\n<ul>\n<li>\n<p>\u524d\u8005\u5c06\u5f53\u524d\u6570\u636e\u4fdd\u5b58\u5230\u786c\u76d8<\/p>\n<\/li>\n<li>\n<p>\u540e\u8005\u5219\u662f\u5c06\u6bcf\u6b21\u6267\u884c\u7684\u5199\u547d\u4ee4\u4fdd\u5b58\u5230\u786c\u76d8\uff08\u7c7b\u4f3c\u4e8e MySQL \u7684 binlog\uff09<\/p>\n<\/li>\n<\/ul>\n<p>\u7531\u4e8e AOF \u6301\u4e45\u5316\u7684\u5b9e\u65f6\u6027\u66f4\u597d\uff0c\u5373\u5f53\u8fdb\u7a0b\u610f\u5916\u9000\u51fa\u65f6\u4e22\u5931\u7684\u6570\u636e\u66f4\u5c11\uff0c\u56e0\u6b64 AOF \u662f\u76ee\u524d\u4e3b\u6d41\u7684\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u4e0d\u8fc7 RDB \u6301\u4e45\u5316\u4ecd\u7136\u6709\u5176\u7528\u6b66\u4e4b\u5730\u3002<\/p>\n<p>\u4e0b\u9762\u4f9d\u6b21\u4ecb\u7ecd RDB \u6301\u4e45\u5316\u548c AOF \u6301\u4e45\u5316\uff1b\u7531\u4e8e Redis \u5404\u4e2a\u7248\u672c\u4e4b\u95f4\u5b58\u5728\u5dee\u5f02\uff0c\u5982\u65e0\u7279\u6b8a\u8bf4\u660e\uff0c\u4ee5 Redis 3.0 \u4e3a\u51c6\u3002<\/p>\n<p><strong><span style=\"font-size: x-large\">RDB \u6301\u4e45\u5316<\/span><\/strong><\/p>\n<p>RDB \u6301\u4e45\u5316\u662f\u5c06\u5f53\u524d\u8fdb\u7a0b\u4e2d\u7684\u6570\u636e\u751f\u6210\u5feb\u7167\u4fdd\u5b58\u5230\u786c\u76d8(\u56e0\u6b64\u4e5f\u79f0\u4f5c\u5feb\u7167\u6301\u4e45\u5316)\uff0c\u4fdd\u5b58\u7684\u6587\u4ef6\u540e\u7f00\u662f RDB\uff1b\u5f53 Redis \u91cd\u65b0\u542f\u52a8\u65f6\uff0c\u53ef\u4ee5\u8bfb\u53d6\u5feb\u7167\u6587\u4ef6\u6062\u590d\u6570\u636e\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u89e6\u53d1\u6761\u4ef6<\/span><\/strong><\/p>\n<p>RDB \u6301\u4e45\u5316\u7684\u89e6\u53d1\u5206\u4e3a\u624b\u52a8\u89e6\u53d1\u548c\u81ea\u52a8\u89e6\u53d1\u4e24\u79cd\uff1a<\/p>\n<ul>\n<li>\n<p>\u624b\u52a8\u89e6\u53d1<\/p>\n<\/li>\n<li>\n<p>\u81ea\u52a8\u89e6\u53d1<\/p>\n<\/li>\n<\/ul>\n<p>\u624b\u52a8\u89e6\u53d1\uff1asave \u547d\u4ee4\u548c bgsave \u547d\u4ee4\u90fd\u53ef\u4ee5\u751f\u6210 RDB \u6587\u4ef6\u3002<\/p>\n<p>save \u547d\u4ee4\u4f1a\u963b\u585e Redis \u670d\u52a1\u5668\u8fdb\u7a0b\uff0c\u76f4\u5230 RDB \u6587\u4ef6\u521b\u5efa\u5b8c\u6bd5\u4e3a\u6b62\uff0c\u5728 Redis \u670d\u52a1\u5668\u963b\u585e\u671f\u95f4\uff0c\u670d\u52a1\u5668\u4e0d\u80fd\u5904\u7406\u4efb\u4f55\u547d\u4ee4\u8bf7\u6c42\u3002<\/p>\n<\/p>\n<p>\u800c bgsave \u547d\u4ee4\u4f1a\u521b\u5efa\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u7531\u5b50\u8fdb\u7a0b\u6765\u8d1f\u8d23\u521b\u5efa RDB \u6587\u4ef6\uff0c\u7236\u8fdb\u7a0b(\u5373 Redis \u4e3b\u8fdb\u7a0b)\u5219\u7ee7\u7eed\u5904\u7406\u8bf7\u6c42\u3002<\/p>\n<\/p>\n<p>\u6b64\u65f6\u670d\u52a1\u5668\u6267\u884c\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>bgsave \u547d\u4ee4\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0c\u53ea\u6709 fork \u5b50\u8fdb\u7a0b\u65f6\u4f1a\u963b\u585e\u670d\u52a1\u5668\uff0c\u800c\u5bf9\u4e8e save \u547d\u4ee4\uff0c\u6574\u4e2a\u8fc7\u7a0b\u90fd\u4f1a\u963b\u585e\u670d\u52a1\u5668\u3002<\/p>\n<p>\u56e0\u6b64 save \u5df2\u57fa\u672c\u88ab\u5e9f\u5f03\uff0c\u7ebf\u4e0a\u73af\u5883\u8981\u675c\u7edd save \u7684\u4f7f\u7528\uff1b\u540e\u6587\u4e2d\u4e5f\u5c06\u53ea\u4ecb\u7ecd bgsave \u547d\u4ee4\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u5728\u81ea\u52a8\u89e6\u53d1 RDB \u6301\u4e45\u5316\u65f6\uff0cRedis \u4e5f\u4f1a\u9009\u62e9 bgsave \u800c\u4e0d\u662f save \u6765\u8fdb\u884c\u6301\u4e45\u5316\uff1b\u4e0b\u9762\u4ecb\u7ecd\u81ea\u52a8\u89e6\u53d1 RDB \u6301\u4e45\u5316\u7684\u6761\u4ef6\u3002<\/p>\n<p>\u81ea\u52a8\u89e6\u53d1\uff1a\u6700\u5e38\u89c1\u7684\u60c5\u51b5\u662f\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u901a\u8fc7 save m n\uff0c\u6307\u5b9a\u5f53 m \u79d2\u5185\u53d1\u751f n \u6b21\u53d8\u5316\u65f6\uff0c\u4f1a\u89e6\u53d1 bgsave\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u67e5\u770b Redis \u7684\u9ed8\u8ba4\u914d\u7f6e\u6587\u4ef6(Linux \u4e0b\u4e3a Redis \u6839\u76ee\u5f55\u4e0b\u7684 redis.conf)\uff0c\u53ef\u4ee5\u770b\u5230\u5982\u4e0b\u914d\u7f6e\u4fe1\u606f\uff1a<\/p>\n<\/p>\n<p>\u5176\u4e2d save 900 1 \u7684\u542b\u4e49\u662f\uff1a\u5f53\u65f6\u95f4\u5230 900 \u79d2\u65f6\uff0c\u5982\u679c Redis \u6570\u636e\u53d1\u751f\u4e86\u81f3\u5c11 1 \u6b21\u53d8\u5316\uff0c\u5219\u6267\u884c bgsave\u3002<\/p>\n<p>save 300 10 \u548c save 60 10000 \u540c\u7406\uff0c\u5f53\u4e09\u4e2a save \u6761\u4ef6\u6ee1\u8db3\u4efb\u610f\u4e00\u4e2a\u65f6\uff0c\u90fd\u4f1a\u5f15\u8d77 bgsave \u7684\u8c03\u7528\u3002<\/p>\n<p>save m n \u7684\u5b9e\u73b0\u539f\u7406\uff1aRedis \u7684 save m n\uff0c\u662f\u901a\u8fc7 serverCron \u51fd\u6570\u3001dirty \u8ba1\u6570\u5668\u548c lastsave \u65f6\u95f4\u6233\u6765\u5b9e\u73b0\u7684\u3002<\/p>\n<p>serverCron \u662f Redis \u670d\u52a1\u5668\u7684\u5468\u671f\u6027\u64cd\u4f5c\u51fd\u6570\uff0c\u9ed8\u8ba4\u6bcf\u9694 100ms \u6267\u884c\u4e00\u6b21\uff1b\u8be5\u51fd\u6570\u5bf9\u670d\u52a1\u5668\u7684\u72b6\u6001\u8fdb\u884c\u7ef4\u62a4\uff0c\u5176\u4e2d\u4e00\u9879\u5de5\u4f5c\u5c31\u662f\u68c0\u67e5 save m n \u914d\u7f6e\u7684\u6761\u4ef6\u662f\u5426\u6ee1\u8db3\uff0c\u5982\u679c\u6ee1\u8db3\u5c31\u6267\u884c bgsave\u3002<\/p>\n<p>dirty \u8ba1\u6570\u5668\u662f Redis \u670d\u52a1\u5668\u7ef4\u6301\u7684\u4e00\u4e2a\u72b6\u6001\uff0c\u8bb0\u5f55\u4e86\u4e0a\u4e00\u6b21\u6267\u884c bgsave\/save \u547d\u4ee4\u540e\uff0c\u670d\u52a1\u5668\u72b6\u6001\u8fdb\u884c\u4e86\u591a\u5c11\u6b21\u4fee\u6539(\u5305\u62ec\u589e\u5220\u6539)\uff1b\u800c\u5f53 save\/bgsave \u6267\u884c\u5b8c\u6210\u540e\uff0c\u4f1a\u5c06 dirty \u91cd\u65b0\u7f6e\u4e3a 0\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5982\u679c Redis \u6267\u884c\u4e86 set mykey helloworld\uff0c\u5219 dirty \u503c\u4f1a +1\uff1b\u5982\u679c\u6267\u884c\u4e86 sadd myset v1 v2 v3\uff0c\u5219 dirty \u503c\u4f1a +3\uff1b\u6ce8\u610f dirty \u8bb0\u5f55\u7684\u662f\u670d\u52a1\u5668\u8fdb\u884c\u4e86\u591a\u5c11\u6b21\u4fee\u6539\uff0c\u800c\u4e0d\u662f\u5ba2\u6237\u7aef\u6267\u884c\u4e86\u591a\u5c11\u4fee\u6539\u6570\u636e\u7684\u547d\u4ee4\u3002<\/p>\n<p>lastsave \u65f6\u95f4\u6233\u4e5f\u662f Redis \u670d\u52a1\u5668\u7ef4\u6301\u7684\u4e00\u4e2a\u72b6\u6001\uff0c\u8bb0\u5f55\u7684\u662f\u4e0a\u4e00\u6b21\u6210\u529f\u6267\u884c save\/bgsave \u7684\u65f6\u95f4\u3002<\/p>\n<p>save m n \u7684\u539f\u7406\u5982\u4e0b\uff1a\u6bcf\u9694 100ms\uff0c\u6267\u884c serverCron \u51fd\u6570\uff1b\u5728 serverCron \u51fd\u6570\u4e2d\uff0c\u904d\u5386 save m n \u914d\u7f6e\u7684\u4fdd\u5b58\u6761\u4ef6\uff0c\u53ea\u8981\u6709\u4e00\u4e2a\u6761\u4ef6\u6ee1\u8db3\uff0c\u5c31\u8fdb\u884c bgsave\u3002<\/p>\n<p>\u5bf9\u4e8e\u6bcf\u4e00\u4e2a save m n \u6761\u4ef6\uff0c\u53ea\u6709\u4e0b\u9762\u4e24\u6761\u540c\u65f6\u6ee1\u8db3\u65f6\u624d\u7b97\u6ee1\u8db3\uff1a<\/p>\n<ul>\n<li>\n<p>\u5f53\u524d\u65f6\u95f4-lastsave &gt; m<\/p>\n<\/li>\n<li>\n<p>dirty &gt;= n<\/p>\n<\/li>\n<\/ul>\n<p>save m n \u6267\u884c\u65e5\u5fd7\uff1a\u4e0b\u56fe\u662f save m n \u89e6\u53d1 bgsave \u6267\u884c\u65f6\uff0c\u670d\u52a1\u5668\u6253\u5370\u65e5\u5fd7\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n<p>\u9664\u4e86 save m n \u4ee5\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u60c5\u51b5\u4f1a\u89e6\u53d1 bgsave\uff1a<\/p>\n<ul>\n<li>\n<p>\u5728\u4e3b\u4ece\u590d\u5236\u573a\u666f\u4e0b\uff0c\u5982\u679c\u4ece\u8282\u70b9\u6267\u884c\u5168\u91cf\u590d\u5236\u64cd\u4f5c\uff0c\u5219\u4e3b\u8282\u70b9\u4f1a\u6267\u884c bgsave \u547d\u4ee4\uff0c\u5e76\u5c06 RDB \u6587\u4ef6\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\u3002<\/p>\n<\/li>\n<li>\n<p>\u6267\u884c shutdown \u547d\u4ee4\u65f6\uff0c\u81ea\u52a8\u6267\u884c RDB \u6301\u4e45\u5316\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<\/li>\n<\/ul>\n<\/p>\n<p><strong><span style=\"font-size: large\">\u6267\u884c\u6d41\u7a0b<\/span><\/strong><\/p>\n<p>\u524d\u9762\u4ecb\u7ecd\u4e86\u89e6\u53d1 bgsave \u7684\u6761\u4ef6\uff0c\u4e0b\u9762\u5c06\u8bf4\u660e bgsave \u547d\u4ee4\u7684\u6267\u884c\u6d41\u7a0b\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<\/p>\n<p>\u56fe\u7247\u4e2d\u7684 5 \u4e2a\u6b65\u9aa4\u6240\u8fdb\u884c\u7684\u64cd\u4f5c\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\n<p>Redis \u7236\u8fdb\u7a0b\u9996\u5148\u5224\u65ad\uff1a\u5f53\u524d\u662f\u5426\u5728\u6267\u884c save \u6216 bgsave\/bgrewriteaof\uff08\u540e\u9762\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u8be5\u547d\u4ee4\uff09\u7684\u5b50\u8fdb\u7a0b\uff0c\u5982\u679c\u5728\u6267\u884c\u5219 bgsave \u547d\u4ee4\u76f4\u63a5\u8fd4\u56de\u3002<\/p>\n<\/li>\n<li>\n<p>bgsave\/bgrewriteaof \u7684\u5b50\u8fdb\u7a0b\u4e0d\u80fd\u540c\u65f6\u6267\u884c\uff0c\u4e3b\u8981\u662f\u57fa\u4e8e\u6027\u80fd\u65b9\u9762\u7684\u8003\u8651\uff1a\u4e24\u4e2a\u5e76\u53d1\u7684\u5b50\u8fdb\u7a0b\u540c\u65f6\u6267\u884c\u5927\u91cf\u7684\u78c1\u76d8\u5199\u64cd\u4f5c\uff0c\u53ef\u80fd\u5f15\u8d77\u4e25\u91cd\u7684\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<\/li>\n<li>\n<p>\u7236\u8fdb\u7a0b\u6267\u884c fork \u64cd\u4f5c\u521b\u5efa\u5b50\u8fdb\u7a0b\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\u7236\u8fdb\u7a0b\u662f\u963b\u585e\u7684\uff0cRedis \u4e0d\u80fd\u6267\u884c\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u4efb\u4f55\u547d\u4ee4\u3002<\/p>\n<\/li>\n<li>\n<p>\u7236\u8fdb\u7a0b fork \u540e\uff0cbgsave \u547d\u4ee4\u8fd4\u56de\u201dBackground saving started\u201d\u4fe1\u606f\u5e76\u4e0d\u518d\u963b\u585e\u7236\u8fdb\u7a0b\uff0c\u5e76\u53ef\u4ee5\u54cd\u5e94\u5176\u4ed6\u547d\u4ee4\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b50\u8fdb\u7a0b\u521b\u5efa RDB \u6587\u4ef6\uff0c\u6839\u636e\u7236\u8fdb\u7a0b\u5185\u5b58\u5feb\u7167\u751f\u6210\u4e34\u65f6\u5feb\u7167\u6587\u4ef6\uff0c\u5b8c\u6210\u540e\u5bf9\u539f\u6709\u6587\u4ef6\u8fdb\u884c\u539f\u5b50\u66ff\u6362\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b50\u8fdb\u7a0b\u53d1\u9001\u4fe1\u53f7\u7ed9\u7236\u8fdb\u7a0b\u8868\u793a\u5b8c\u6210\uff0c\u7236\u8fdb\u7a0b\u66f4\u65b0\u7edf\u8ba1\u4fe1\u606f\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: large\">RDB \u6587\u4ef6<\/span><\/strong><\/p>\n<p>RDB \u6587\u4ef6\u662f\u7ecf\u8fc7\u538b\u7f29\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u4e0b\u9762\u4ecb\u7ecd\u5173\u4e8e RDB \u6587\u4ef6\u7684\u4e00\u4e9b\u7ec6\u8282\u3002<\/p>\n<p><strong>\u5b58\u50a8\u8def\u5f84<\/strong><\/p>\n<p>RDB \u6587\u4ef6\u7684\u5b58\u50a8\u8def\u5f84\u65e2\u53ef\u4ee5\u5728\u542f\u52a8\u524d\u914d\u7f6e\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\u52a8\u6001\u8bbe\u5b9a\u3002<\/p>\n<p>\u914d\u7f6e\uff1adir \u914d\u7f6e\u6307\u5b9a\u76ee\u5f55\uff0cdbfilename \u6307\u5b9a\u6587\u4ef6\u540d\u3002\u9ed8\u8ba4\u662f Redis \u6839\u76ee\u5f55\u4e0b\u7684 dump.rdb \u6587\u4ef6\u3002<\/p>\n<p>\u52a8\u6001\u8bbe\u5b9a\uff1aRedis \u542f\u52a8\u540e\u4e5f\u53ef\u4ee5\u52a8\u6001\u4fee\u6539 RDB \u5b58\u50a8\u8def\u5f84\uff0c\u5728\u78c1\u76d8\u635f\u5bb3\u6216\u7a7a\u95f4\u4e0d\u8db3\u65f6\u975e\u5e38\u6709\u7528\uff1b\u6267\u884c\u547d\u4ee4\u4e3a config set dir {newdir}\u548c config set dbfilename {newFileName}\u3002<\/p>\n<p>\u5982\u4e0b\u6240\u793a(Windows \u73af\u5883)\uff1a<\/p>\n<\/p>\n<p>RDB \u6587\u4ef6\u683c\u5f0f<\/p>\n<p>RDB \u6587\u4ef6\u683c\u5f0f\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<\/p>\n<p>\u5176\u4e2d\u5404\u4e2a\u5b57\u6bb5\u7684\u542b\u4e49\u8bf4\u660e\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\n<p>REDIS\uff1a\u5e38\u91cf\uff0c\u4fdd\u5b58\u7740\u201cREDIS\u201d5 \u4e2a\u5b57\u7b26\u3002<\/p>\n<\/li>\n<li>\n<p>db_version\uff1aRDB \u6587\u4ef6\u7684\u7248\u672c\u53f7\uff0c\u6ce8\u610f\u4e0d\u662f Redis \u7684\u7248\u672c\u53f7\u3002<\/p>\n<\/li>\n<li>\n<p>SELECTDB 0 pairs\uff1a\u8868\u793a\u4e00\u4e2a\u5b8c\u6574\u7684\u6570\u636e\u5e93(0 \u53f7\u6570\u636e\u5e93)\uff0c\u540c\u7406 SELECTDB 3 pairs \u8868\u793a\u5b8c\u6574\u7684 3 \u53f7\u6570\u636e\u5e93\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u53ea\u6709\u5f53\u6570\u636e\u5e93\u4e2d\u6709\u952e\u503c\u5bf9\u65f6\uff0cRDB \u6587\u4ef6\u4e2d\u624d\u4f1a\u6709\u8be5\u6570\u636e\u5e93\u7684\u4fe1\u606f(\u4e0a\u56fe\u6240\u793a\u7684 Redis \u4e2d\u53ea\u6709 0 \u53f7\u548c 3 \u53f7\u6570\u636e\u5e93\u6709\u952e\u503c\u5bf9)\uff1b\u5982\u679c Redis \u4e2d\u6240\u6709\u7684\u6570\u636e\u5e93\u90fd\u6ca1\u6709\u952e\u503c\u5bf9\uff0c\u5219\u8fd9\u4e00\u90e8\u5206\u76f4\u63a5\u7701\u7565\u3002<\/p>\n<p>\u5176\u4e2d\uff1aSELECTDB \u662f\u4e00\u4e2a\u5e38\u91cf\uff0c\u4ee3\u8868\u540e\u9762\u8ddf\u7740\u7684\u662f\u6570\u636e\u5e93\u53f7\u7801\uff1b0 \u548c 3 \u662f\u6570\u636e\u5e93\u53f7\u7801\uff1bpairs \u5219\u5b58\u50a8\u4e86\u5177\u4f53\u7684\u952e\u503c\u5bf9\u4fe1\u606f\uff0c\u5305\u62ec key\u3001value \u503c\uff0c\u53ca\u5176\u6570\u636e\u7c7b\u578b\u3001\u5185\u90e8\u7f16\u7801\u3001\u8fc7\u671f\u65f6\u95f4\u3001\u538b\u7f29\u4fe1\u606f\u7b49\u7b49\u3002<\/p>\n<ul>\n<li>\n<p>EOF\uff1a\u5e38\u91cf\uff0c\u6807\u5fd7 RDB \u6587\u4ef6\u6b63\u6587\u5185\u5bb9\u7ed3\u675f\u3002<\/p>\n<\/li>\n<li>\n<p>check_sum\uff1a\u524d\u9762\u6240\u6709\u5185\u5bb9\u7684\u6821\u9a8c\u548c\uff1bRedis \u5728\u8f7d\u5165 RBD \u6587\u4ef6\u65f6\uff0c\u4f1a\u8ba1\u7b97\u524d\u9762\u7684\u6821\u9a8c\u548c\u5e76\u4e0e check_sum \u503c\u6bd4\u8f83\uff0c\u5224\u65ad\u6587\u4ef6\u662f\u5426\u635f\u574f\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>\u538b\u7f29<\/strong><\/p>\n<p>Redis \u9ed8\u8ba4\u91c7\u7528 LZF \u7b97\u6cd5\u5bf9 RDB \u6587\u4ef6\u8fdb\u884c\u538b\u7f29\u3002\u867d\u7136\u538b\u7f29\u8017\u65f6\uff0c\u4f46\u662f\u53ef\u4ee5\u5927\u5927\u51cf\u5c0f RDB \u6587\u4ef6\u7684\u4f53\u79ef\uff0c\u56e0\u6b64\u538b\u7f29\u9ed8\u8ba4\u5f00\u542f\uff1b\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\u5173\u95ed\uff1a<\/p>\n<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cRDB \u6587\u4ef6\u7684\u538b\u7f29\u5e76\u4e0d\u662f\u9488\u5bf9\u6574\u4e2a\u6587\u4ef6\u8fdb\u884c\u7684\uff0c\u800c\u662f\u5bf9\u6570\u636e\u5e93\u4e2d\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u7684\uff0c\u4e14\u53ea\u6709\u5728\u5b57\u7b26\u4e32\u8fbe\u5230\u4e00\u5b9a\u957f\u5ea6(20 \u5b57\u8282)\u65f6\u624d\u4f1a\u8fdb\u884c\u3002<\/p>\n<p>\u542f\u52a8\u65f6\u52a0\u8f7d<\/p>\n<p>RDB \u6587\u4ef6\u7684\u8f7d\u5165\u5de5\u4f5c\u662f\u5728\u670d\u52a1\u5668\u542f\u52a8\u65f6\u81ea\u52a8\u6267\u884c\u7684\uff0c\u5e76\u6ca1\u6709\u4e13\u95e8\u7684\u547d\u4ee4\u3002\u4f46\u662f\u7531\u4e8e AOF \u7684\u4f18\u5148\u7ea7\u66f4\u9ad8\uff0c\u56e0\u6b64\u5f53 AOF \u5f00\u542f\u65f6\uff0cRedis \u4f1a\u4f18\u5148\u8f7d\u5165 AOF \u6587\u4ef6\u6765\u6062\u590d\u6570\u636e\u3002<\/p>\n<p>\u53ea\u6709\u5f53 AOF \u5173\u95ed\u65f6\uff0c\u624d\u4f1a\u5728 Redis \u670d\u52a1\u5668\u542f\u52a8\u65f6\u68c0\u6d4b RDB \u6587\u4ef6\uff0c\u5e76\u81ea\u52a8\u8f7d\u5165\u3002\u670d\u52a1\u5668\u8f7d\u5165 RDB \u6587\u4ef6\u671f\u95f4\u5904\u4e8e\u963b\u585e\u72b6\u6001\uff0c\u76f4\u5230\u8f7d\u5165\u5b8c\u6210\u4e3a\u6b62\u3002<\/p>\n<p>Redis \u542f\u52a8\u65e5\u5fd7\u4e2d\u53ef\u4ee5\u770b\u5230\u81ea\u52a8\u8f7d\u5165\u7684\u6267\u884c\uff1a<\/p>\n<\/p>\n<p>Redis \u8f7d\u5165 RDB \u6587\u4ef6\u65f6\uff0c\u4f1a\u5bf9 RDB \u6587\u4ef6\u8fdb\u884c\u6821\u9a8c\uff0c\u5982\u679c\u6587\u4ef6\u635f\u574f\uff0c\u5219\u65e5\u5fd7\u4e2d\u4f1a\u6253\u5370\u9519\u8bef\uff0cRedis \u542f\u52a8\u5931\u8d25\u3002<\/p>\n<p><strong><span style=\"font-size: large\">RDB \u5e38\u7528\u914d\u7f6e\u603b\u7ed3<\/span><\/strong><\/p>\n<p>\u4e0b\u9762\u662f RDB \u5e38\u7528\u7684\u914d\u7f6e\u9879\uff0c\u4ee5\u53ca\u9ed8\u8ba4\u503c\uff0c\u524d\u9762\u4ecb\u7ecd\u8fc7\u7684\u8fd9\u91cc\u4e0d\u518d\u8be6\u7ec6\u4ecb\u7ecd\uff1a<\/p>\n<ul>\n<li>\n<p>save m n\uff1abgsave \u81ea\u52a8\u89e6\u53d1\u7684\u6761\u4ef6\uff1b\u5982\u679c\u6ca1\u6709 save m n \u914d\u7f6e\uff0c\u76f8\u5f53\u4e8e\u81ea\u52a8\u7684 RDB \u6301\u4e45\u5316\u5173\u95ed\uff0c\u4e0d\u8fc7\u6b64\u65f6\u4ecd\u53ef\u4ee5\u901a\u8fc7\u5176\u4ed6\u65b9\u5f0f\u89e6\u53d1\u3002<\/p>\n<\/li>\n<li>\n<p>stop-writes-on-bgsave-error yes\uff1a\u5f53 bgsave \u51fa\u73b0\u9519\u8bef\u65f6\uff0cRedis \u662f\u5426\u505c\u6b62\u6267\u884c\u5199\u547d\u4ee4\uff1b\u8bbe\u7f6e\u4e3a yes\uff0c\u5219\u5f53\u786c\u76d8\u51fa\u73b0\u95ee\u9898\u65f6\uff0c\u53ef\u4ee5\u53ca\u65f6\u53d1\u73b0\uff0c\u907f\u514d\u6570\u636e\u7684\u5927\u91cf\u4e22\u5931\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u8bbe\u7f6e\u4e3a no\uff0c\u5219 Redis \u65e0\u89c6 bgsave \u7684\u9519\u8bef\u7ee7\u7eed\u6267\u884c\u5199\u547d\u4ee4\uff0c\u5f53\u5bf9 Redis \u670d\u52a1\u5668\u7684\u7cfb\u7edf(\u5c24\u5176\u662f\u786c\u76d8)\u4f7f\u7528\u4e86\u76d1\u63a7\u65f6\uff0c\u8be5\u9009\u9879\u8003\u8651\u8bbe\u7f6e\u4e3a no\u3002<\/p>\n<ul>\n<li>\n<p>rdbcompression yes\uff1a\u662f\u5426\u5f00\u542f RDB \u6587\u4ef6\u538b\u7f29\u3002<\/p>\n<\/li>\n<li>\n<p>rdbchecksum yes\uff1a\u662f\u5426\u5f00\u542f RDB \u6587\u4ef6\u7684\u6821\u9a8c\uff0c\u5728\u5199\u5165\u6587\u4ef6\u548c\u8bfb\u53d6\u6587\u4ef6\u65f6\u90fd\u8d77\u4f5c\u7528\uff1b\u5173\u95ed checksum \u5728\u5199\u5165\u6587\u4ef6\u548c\u542f\u52a8\u6587\u4ef6\u65f6\u5927\u7ea6\u80fd\u5e26\u6765 10% \u7684\u6027\u80fd\u63d0\u5347\uff0c\u4f46\u662f\u6570\u636e\u635f\u574f\u65f6\u65e0\u6cd5\u53d1\u73b0\u3002<\/p>\n<\/li>\n<li>\n<p>dbfilename dump.rdb\uff1aRDB \u6587\u4ef6\u540d\u3002<\/p>\n<\/li>\n<li>\n<p>dir .\/\uff1aRDB \u6587\u4ef6\u548c AOF \u6587\u4ef6\u6240\u5728\u76ee\u5f55\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: x-large\">AOF \u6301\u4e45\u5316<\/span><\/strong><\/p>\n<p>RDB \u6301\u4e45\u5316\u662f\u5c06\u8fdb\u7a0b\u6570\u636e\u5199\u5165\u6587\u4ef6\uff0c\u800c AOF \u6301\u4e45\u5316(\u5373 Append Only File \u6301\u4e45\u5316)\uff0c\u5219\u662f\u5c06 Redis \u6267\u884c\u7684\u6bcf\u6b21\u5199\u547d\u4ee4\u8bb0\u5f55\u5230\u5355\u72ec\u7684\u65e5\u5fd7\u6587\u4ef6\u4e2d\uff08\u6709\u70b9\u50cf MySQL \u7684 binlog\uff09\uff0c\u5f53 Redis \u91cd\u542f\u65f6\u518d\u6b21\u6267\u884c AOF \u6587\u4ef6\u4e2d\u7684\u547d\u4ee4\u6765\u6062\u590d\u6570\u636e\u3002<\/p>\n<p>\u4e0e RDB \u76f8\u6bd4\uff0cAOF \u7684\u5b9e\u65f6\u6027\u66f4\u597d\uff0c\u56e0\u6b64\u5df2\u6210\u4e3a\u4e3b\u6d41\u7684\u6301\u4e45\u5316\u65b9\u6848\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u5f00\u542f AOF<\/span><\/strong><\/p>\n<p>Redis \u670d\u52a1\u5668\u9ed8\u8ba4\u5f00\u542f RDB\uff0c\u5173\u95ed AOF\uff1b\u8981\u5f00\u542f AOF\uff0c\u9700\u8981\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u914d\u7f6e\uff1aappendonly yes\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u6267\u884c\u6d41\u7a0b<\/span><\/strong><\/p>\n<p>\u7531\u4e8e\u9700\u8981\u8bb0\u5f55 Redis \u7684\u6bcf\u6761\u5199\u547d\u4ee4\uff0c\u56e0\u6b64 AOF \u4e0d\u9700\u8981\u89e6\u53d1\uff0c\u4e0b\u9762\u4ecb\u7ecd AOF \u7684\u6267\u884c\u6d41\u7a0b\u3002<\/p>\n<p>AOF \u7684\u6267\u884c\u6d41\u7a0b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\n<p>\u547d\u4ee4\u8ffd\u52a0(append)\uff1a\u5c06 Redis \u7684\u5199\u547d\u4ee4\u8ffd\u52a0\u5230\u7f13\u51b2\u533a aof_buf\u3002<\/p>\n<\/li>\n<li>\n<p>\u6587\u4ef6\u5199\u5165(write)\u548c\u6587\u4ef6\u540c\u6b65(sync)\uff1a\u6839\u636e\u4e0d\u540c\u7684\u540c\u6b65\u7b56\u7565\u5c06 aof_buf \u4e2d\u7684\u5185\u5bb9\u540c\u6b65\u5230\u786c\u76d8\u3002<\/p>\n<\/li>\n<li>\n<p>\u6587\u4ef6\u91cd\u5199(rewrite)\uff1a\u5b9a\u671f\u91cd\u5199 AOF \u6587\u4ef6\uff0c\u8fbe\u5230\u538b\u7f29\u7684\u76ee\u7684\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>\u547d\u4ee4\u8ffd\u52a0(append)<\/strong><\/p>\n<p>Redis \u5148\u5c06\u5199\u547d\u4ee4\u8ffd\u52a0\u5230\u7f13\u51b2\u533a\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u5199\u5165\u6587\u4ef6\uff0c\u4e3b\u8981\u662f\u4e3a\u4e86\u907f\u514d\u6bcf\u6b21\u6709\u5199\u547d\u4ee4\u90fd\u76f4\u63a5\u5199\u5165\u786c\u76d8\uff0c\u5bfc\u81f4\u786c\u76d8 IO \u6210\u4e3a Redis \u8d1f\u8f7d\u7684\u74f6\u9888\u3002<\/p>\n<p>\u547d\u4ee4\u8ffd\u52a0\u7684\u683c\u5f0f\u662f Redis \u547d\u4ee4\u8bf7\u6c42\u7684\u534f\u8bae\u683c\u5f0f\uff0c\u5b83\u662f\u4e00\u79cd\u7eaf\u6587\u672c\u683c\u5f0f\uff0c\u5177\u6709\u517c\u5bb9\u6027\u597d\u3001\u53ef\u8bfb\u6027\u5f3a\u3001\u5bb9\u6613\u5904\u7406\u3001\u64cd\u4f5c\u7b80\u5355\u907f\u514d\u4e8c\u6b21\u5f00\u9500\u7b49\u4f18\u70b9\uff0c\u5177\u4f53\u683c\u5f0f\u7565\u3002<\/p>\n<p>\u5728 AOF \u6587\u4ef6\u4e2d\uff0c\u9664\u4e86\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u5e93\u7684 select \u547d\u4ee4\uff08\u5982 select 0 \u4e3a\u9009\u4e2d 0 \u53f7\u6570\u636e\u5e93\uff09\u662f\u7531 Redis \u6dfb\u52a0\u7684\uff0c\u5176\u4ed6\u90fd\u662f\u5ba2\u6237\u7aef\u53d1\u9001\u6765\u7684\u5199\u547d\u4ee4\u3002<\/p>\n<p><strong>\u6587\u4ef6\u5199\u5165(write)\u548c\u6587\u4ef6\u540c\u6b65(sync)<\/strong><\/p>\n<p>Redis \u63d0\u4f9b\u4e86\u591a\u79cd AOF \u7f13\u5b58\u533a\u7684\u540c\u6b65\u6587\u4ef6\u7b56\u7565\uff0c\u7b56\u7565\u6d89\u53ca\u5230\u64cd\u4f5c\u7cfb\u7edf\u7684 write \u51fd\u6570\u548c fsync \u51fd\u6570\uff0c\u8bf4\u660e\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\n<p>\u4e3a\u4e86\u63d0\u9ad8\u6587\u4ef6\u5199\u5165\u6548\u7387\uff0c\u5728\u73b0\u4ee3\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u5f53\u7528\u6237\u8c03\u7528 write \u51fd\u6570\u5c06\u6570\u636e\u5199\u5165\u6587\u4ef6\u65f6\uff0c\u64cd\u4f5c\u7cfb\u7edf\u901a\u5e38\u4f1a\u5c06\u6570\u636e\u6682\u5b58\u5230\u4e00\u4e2a\u5185\u5b58\u7f13\u51b2\u533a\u91cc\uff0c\u5f53\u7f13\u51b2\u533a\u88ab\u586b\u6ee1\u6216\u8d85\u8fc7\u4e86\u6307\u5b9a\u65f6\u9650\u540e\uff0c\u624d\u771f\u6b63\u5c06\u7f13\u51b2\u533a\u7684\u6570\u636e\u5199\u5165\u5230\u786c\u76d8\u91cc\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u8fd9\u6837\u7684\u64cd\u4f5c\u867d\u7136\u63d0\u9ad8\u4e86\u6548\u7387\uff0c\u4f46\u4e5f\u5e26\u6765\u4e86\u5b89\u5168\u95ee\u9898\uff1a\u5982\u679c\u8ba1\u7b97\u673a\u505c\u673a\uff0c\u5185\u5b58\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\u4f1a\u4e22\u5931\u3002<\/p>\n<p>\u56e0\u6b64\u7cfb\u7edf\u540c\u65f6\u63d0\u4f9b\u4e86 fsync\u3001fdatasync \u7b49\u540c\u6b65\u51fd\u6570\uff0c\u53ef\u4ee5\u5f3a\u5236\u64cd\u4f5c\u7cfb\u7edf\u7acb\u523b\u5c06\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\u5199\u5165\u5230\u786c\u76d8\u91cc\uff0c\u4ece\u800c\u786e\u4fdd\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/p>\n<p>AOF \u7f13\u5b58\u533a\u7684\u540c\u6b65\u6587\u4ef6\u7b56\u7565\u7531\u53c2\u6570 appendfsync \u63a7\u5236\uff0c\u5404\u4e2a\u503c\u7684\u542b\u4e49\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\n<p>always\uff1a\u547d\u4ee4\u5199\u5165 aof_buf \u540e\u7acb\u5373\u8c03\u7528\u7cfb\u7edf fsync \u64cd\u4f5c\u540c\u6b65\u5230 AOF \u6587\u4ef6\uff0cfsync \u5b8c\u6210\u540e\u7ebf\u7a0b\u8fd4\u56de\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6bcf\u6b21\u6709\u5199\u547d\u4ee4\u90fd\u8981\u540c\u6b65\u5230 AOF \u6587\u4ef6\uff0c\u786c\u76d8 IO \u6210\u4e3a\u6027\u80fd\u74f6\u9888\uff0cRedis \u53ea\u80fd\u652f\u6301\u5927\u7ea6\u51e0\u767e TPS \u5199\u5165\uff0c\u4e25\u91cd\u964d\u4f4e\u4e86 Redis \u7684\u6027\u80fd\u3002<\/p>\n<p>\u5373\u4fbf\u662f\u4f7f\u7528\u56fa\u6001\u786c\u76d8\uff08SSD\uff09\uff0c\u6bcf\u79d2\u5927\u7ea6\u4e5f\u53ea\u80fd\u5904\u7406\u51e0\u4e07\u4e2a\u547d\u4ee4\uff0c\u800c\u4e14\u4f1a\u5927\u5927\u964d\u4f4e SSD \u7684\u5bff\u547d\u3002<\/p>\n<ul>\n<li>\n<p>no\uff1a\u547d\u4ee4\u5199\u5165 aof_buf \u540e\u8c03\u7528\u7cfb\u7edf write \u64cd\u4f5c\uff0c\u4e0d\u5bf9 AOF \u6587\u4ef6\u505a fsync \u540c\u6b65\uff1b\u540c\u6b65\u7531\u64cd\u4f5c\u7cfb\u7edf\u8d1f\u8d23\uff0c\u901a\u5e38\u540c\u6b65\u5468\u671f\u4e3a 30 \u79d2\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6587\u4ef6\u540c\u6b65\u7684\u65f6\u95f4\u4e0d\u53ef\u63a7\uff0c\u4e14\u7f13\u51b2\u533a\u4e2d\u5806\u79ef\u7684\u6570\u636e\u4f1a\u5f88\u591a\uff0c\u6570\u636e\u5b89\u5168\u6027\u65e0\u6cd5\u4fdd\u8bc1\u3002<\/p>\n<ul>\n<li>\n<p>everysec\uff1a\u547d\u4ee4\u5199\u5165 aof_buf \u540e\u8c03\u7528\u7cfb\u7edf write \u64cd\u4f5c\uff0cwrite \u5b8c\u6210\u540e\u7ebf\u7a0b\u8fd4\u56de\uff1bfsync \u540c\u6b65\u6587\u4ef6\u64cd\u4f5c\u7531\u4e13\u95e8\u7684\u7ebf\u7a0b\u6bcf\u79d2\u8c03\u7528\u4e00\u6b21\u3002<\/p>\n<\/li>\n<\/ul>\n<p>everysec \u662f\u524d\u8ff0\u4e24\u79cd\u7b56\u7565\u7684\u6298\u4e2d\uff0c\u662f\u6027\u80fd\u548c\u6570\u636e\u5b89\u5168\u6027\u7684\u5e73\u8861\uff0c\u56e0\u6b64\u662f Redis \u7684\u9ed8\u8ba4\u914d\u7f6e\uff0c\u4e5f\u662f\u6211\u4eec\u63a8\u8350\u7684\u914d\u7f6e\u3002<\/p>\n<p><strong>\u6587\u4ef6\u91cd\u5199(rewrite)<\/strong><\/p>\n<p>\u968f\u7740\u65f6\u95f4\u6d41\u901d\uff0cRedis \u670d\u52a1\u5668\u6267\u884c\u7684\u5199\u547d\u4ee4\u8d8a\u6765\u8d8a\u591a\uff0cAOF \u6587\u4ef6\u4e5f\u4f1a\u8d8a\u6765\u8d8a\u5927\uff1b\u8fc7\u5927\u7684 AOF \u6587\u4ef6\u4e0d\u4ec5\u4f1a\u5f71\u54cd\u670d\u52a1\u5668\u7684\u6b63\u5e38\u8fd0\u884c\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u6570\u636e\u6062\u590d\u9700\u8981\u7684\u65f6\u95f4\u8fc7\u957f\u3002<\/p>\n<p>\u6587\u4ef6\u91cd\u5199\u662f\u6307\u5b9a\u671f\u91cd\u5199 AOF \u6587\u4ef6\uff0c\u51cf\u5c0f AOF \u6587\u4ef6\u7684\u4f53\u79ef\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cAOF \u91cd\u5199\u662f\u628a Redis \u8fdb\u7a0b\u5185\u7684\u6570\u636e\u8f6c\u5316\u4e3a\u5199\u547d\u4ee4\uff0c\u540c\u6b65\u5230\u65b0\u7684 AOF \u6587\u4ef6\uff1b\u4e0d\u4f1a\u5bf9\u65e7\u7684 AOF \u6587\u4ef6\u8fdb\u884c\u4efb\u4f55\u8bfb\u53d6\u3001\u5199\u5165\u64cd\u4f5c\uff01<\/p>\n<p>\u5173\u4e8e\u6587\u4ef6\u91cd\u5199\u9700\u8981\u6ce8\u610f\u7684\u53e6\u4e00\u70b9\u662f\uff1a\u5bf9\u4e8e AOF \u6301\u4e45\u5316\u6765\u8bf4\uff0c\u6587\u4ef6\u91cd\u5199\u867d\u7136\u662f\u5f3a\u70c8\u63a8\u8350\u7684\uff0c\u4f46\u5e76\u4e0d\u662f\u5fc5\u987b\u7684\u3002\u5373\u4f7f\u6ca1\u6709\u6587\u4ef6\u91cd\u5199\uff0c\u6570\u636e\u4e5f\u53ef\u4ee5\u88ab\u6301\u4e45\u5316\u5e76\u5728 Redis \u542f\u52a8\u7684\u65f6\u5019\u5bfc\u5165\u3002<\/p>\n<p>\u56e0\u6b64\u5728\u4e00\u4e9b\u5b9e\u73b0\u4e2d\uff0c\u4f1a\u5173\u95ed\u81ea\u52a8\u7684\u6587\u4ef6\u91cd\u5199\uff0c\u7136\u540e\u901a\u8fc7\u5b9a\u65f6\u4efb\u52a1\u5728\u6bcf\u5929\u7684\u67d0\u4e00\u65f6\u523b\u5b9a\u65f6\u6267\u884c\u3002<\/p>\n<p>\u6587\u4ef6\u91cd\u5199\u4e4b\u6240\u4ee5\u80fd\u591f\u538b\u7f29 AOF \u6587\u4ef6\uff0c\u539f\u56e0\u5728\u4e8e\uff1a<\/p>\n<ul>\n<li>\n<p>\u8fc7\u671f\u7684\u6570\u636e\u4e0d\u518d\u5199\u5165\u6587\u4ef6\u3002<\/p>\n<\/li>\n<li>\n<p>\u65e0\u6548\u7684\u547d\u4ee4\u4e0d\u518d\u5199\u5165\u6587\u4ef6\uff1a\u5982\u6709\u4e9b\u6570\u636e\u88ab\u91cd\u590d\u8bbe\u503c(set mykey v1\uff0cset mykey v2)\u3001\u6709\u4e9b\u6570\u636e\u88ab\u5220\u9664\u4e86(sadd myset v1\uff0cdel myset)\u7b49\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>\u591a\u6761\u547d\u4ee4\u53ef\u4ee5\u5408\u5e76\u4e3a\u4e00\u4e2a\uff1a\u5982 sadd myset v1\uff0csadd myset v2\uff0csadd myset v3 \u53ef\u4ee5\u5408\u5e76\u4e3a sadd myset v1 v2 v3\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e0d\u8fc7\u4e3a\u4e86\u9632\u6b62\u5355\u6761\u547d\u4ee4\u8fc7\u5927\u9020\u6210\u5ba2\u6237\u7aef\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u5bf9\u4e8e list\u3001set\u3001hash\u3001zset \u7c7b\u578b\u7684 key\uff0c\u5e76\u4e0d\u4e00\u5b9a\u53ea\u4f7f\u7528\u4e00\u6761\u547d\u4ee4\u3002<\/p>\n<p>\u800c\u662f\u4ee5\u67d0\u4e2a\u5e38\u91cf\u4e3a\u754c\u5c06\u547d\u4ee4\u62c6\u5206\u4e3a\u591a\u6761\u3002\u8fd9\u4e2a\u5e38\u91cf\u5728 redis.h\/REDIS_AOF_REWRITE_ITEMS_PER_CMD \u4e2d\u5b9a\u4e49\uff0c\u4e0d\u53ef\u66f4\u6539\uff0c3.0 \u7248\u672c\u4e2d\u503c\u662f 64\u3002<\/p>\n<\/p>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u5185\u5bb9\u53ef\u4ee5\u770b\u51fa\uff0c\u7531\u4e8e\u91cd\u5199\u540e AOF \u6267\u884c\u7684\u547d\u4ee4\u51cf\u5c11\u4e86\uff0c\u6587\u4ef6\u91cd\u5199\u65e2\u53ef\u4ee5\u51cf\u5c11\u6587\u4ef6\u5360\u7528\u7684\u7a7a\u95f4\uff0c\u4e5f\u53ef\u4ee5\u52a0\u5feb\u6062\u590d\u901f\u5ea6\u3002<\/p>\n<p><strong>\u6587\u4ef6\u91cd\u5199\u7684\u89e6\u53d1<\/strong><\/p>\n<p>\u6587\u4ef6\u91cd\u5199\u7684\u89e6\u53d1\uff0c\u5206\u4e3a\u624b\u52a8\u89e6\u53d1\u548c\u81ea\u52a8\u89e6\u53d1\uff1a<\/p>\n<p>\u624b\u52a8\u89e6\u53d1\uff0c\u76f4\u63a5\u8c03\u7528 bgrewriteaof \u547d\u4ee4\uff0c\u8be5\u547d\u4ee4\u7684\u6267\u884c\u4e0e bgsave \u6709\u4e9b\u7c7b\u4f3c\uff1a\u90fd\u662f fork \u5b50\u8fdb\u7a0b\u8fdb\u884c\u5177\u4f53\u7684\u5de5\u4f5c\uff0c\u4e14\u90fd\u53ea\u6709\u5728 fork \u65f6\u963b\u585e\u3002<\/p>\n<\/p>\n<p>&nbsp;<\/p>\n<p>\u6b64\u65f6\u670d\u52a1\u5668\u6267\u884c\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>\u81ea\u52a8\u89e6\u53d1\uff0c\u6839\u636e auto-aof-rewrite-min-size \u548c auto-aof-rewrite-percentage \u53c2\u6570\uff0c\u4ee5\u53ca aof_current_size \u548c aof_base_size \u72b6\u6001\u786e\u5b9a\u89e6\u53d1\u65f6\u673a\uff1a<\/p>\n<ul>\n<li>\n<p>auto-aof-rewrite-min-size\uff1a\u6267\u884c AOF \u91cd\u5199\u65f6\uff0c\u6587\u4ef6\u7684\u6700\u5c0f\u4f53\u79ef\uff0c\u9ed8\u8ba4\u503c\u4e3a 64MB\u3002<\/p>\n<\/li>\n<li>\n<p>auto-aof-rewrite-percentage\uff1a\u6267\u884c AOF \u91cd\u5199\u65f6\uff0c\u5f53\u524d AOF \u5927\u5c0f(\u5373 aof_current_size)\u548c\u4e0a\u4e00\u6b21\u91cd\u5199\u65f6 AOF \u5927\u5c0f(aof_base_size)\u7684\u6bd4\u503c\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5176\u4e2d\uff0c\u53c2\u6570\u53ef\u4ee5\u901a\u8fc7 config get \u547d\u4ee4\u67e5\u770b\uff1a<\/p>\n<\/p>\n<p>\u72b6\u6001\u53ef\u4ee5\u901a\u8fc7 info persistence \u67e5\u770b\uff1a<\/p>\n<\/p>\n<p>\u53ea\u6709\u5f53 auto-aof-rewrite-min-size \u548c auto-aof-rewrite-percentage \u4e24\u4e2a\u53c2\u6570\u540c\u65f6\u6ee1\u8db3\u65f6\uff0c\u624d\u4f1a\u81ea\u52a8\u89e6\u53d1 AOF \u91cd\u5199\uff0c\u5373 bgrewriteaof \u64cd\u4f5c\u3002<\/p>\n<p>\u81ea\u52a8\u89e6\u53d1 bgrewriteaof \u65f6\uff0c\u53ef\u4ee5\u770b\u5230\u670d\u52a1\u5668\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>\u6587\u4ef6\u91cd\u5199\u7684\u6d41\u7a0b<\/p>\n<p>\u6587\u4ef6\u91cd\u5199\u6d41\u7a0b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<\/p>\n<p>\u5173\u4e8e\u6587\u4ef6\u91cd\u5199\u7684\u6d41\u7a0b\uff0c\u6709\u4e24\u70b9\u9700\u8981\u7279\u522b\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\n<p>\u91cd\u5199\u7531\u7236\u8fdb\u7a0b fork \u5b50\u8fdb\u7a0b\u8fdb\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>\u91cd\u5199\u671f\u95f4 Redis \u6267\u884c\u7684\u5199\u547d\u4ee4\uff0c\u9700\u8981\u8ffd\u52a0\u5230\u65b0\u7684 AOF \u6587\u4ef6\u4e2d\uff0c\u4e3a\u6b64 Redis \u5f15\u5165\u4e86 aof_rewrite_buf \u7f13\u5b58\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5bf9\u7167\u4e0a\u56fe\uff0c\u6587\u4ef6\u91cd\u5199\u7684\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\n<p>1)\uff1aRedis \u7236\u8fdb\u7a0b\u9996\u5148\u5224\u65ad\u5f53\u524d\u662f\u5426\u5b58\u5728\u6b63\u5728\u6267\u884c bgsave\/bgrewriteaof \u7684\u5b50\u8fdb\u7a0b\uff0c\u5982\u679c\u5b58\u5728\u5219 bgrewriteaof \u547d\u4ee4\u76f4\u63a5\u8fd4\u56de\uff1b\u5982\u679c\u5b58\u5728 bgsave \u547d\u4ee4\u5219\u7b49 bgsave \u6267\u884c\u5b8c\u6210\u540e\u518d\u6267\u884c\uff0c\u8fd9\u4e2a\u4e3b\u8981\u662f\u57fa\u4e8e\u6027\u80fd\u65b9\u9762\u7684\u8003\u8651\u3002<\/p>\n<\/li>\n<li>\n<p>2)\uff1a\u7236\u8fdb\u7a0b\u6267\u884c fork \u64cd\u4f5c\u521b\u5efa\u5b50\u8fdb\u7a0b\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\u7236\u8fdb\u7a0b\u662f\u963b\u585e\u7684\u3002<\/p>\n<\/li>\n<li>\n<p>3.1)\uff1a\u7236\u8fdb\u7a0b fork \u540e\uff0cbgrewriteaof \u547d\u4ee4\u8fd4\u56de\u201cBackground append only file rewrite started\u201d\u4fe1\u606f\u5e76\u4e0d\u518d\u963b\u585e\u7236\u8fdb\u7a0b\uff0c\u5e76\u53ef\u4ee5\u54cd\u5e94\u5176\u4ed6\u547d\u4ee4\u3002<\/p>\n<\/li>\n<li>\n<p>Redis \u7684\u6240\u6709\u5199\u547d\u4ee4\u4f9d\u7136\u5199\u5165 AOF \u7f13\u51b2\u533a\uff0c\u5e76\u6839\u636e appendfsync \u7b56\u7565\u540c\u6b65\u5230\u786c\u76d8\uff0c\u4fdd\u8bc1\u539f\u6709 AOF \u673a\u5236\u7684\u6b63\u786e\u3002<\/p>\n<\/li>\n<li>\n<p>3.2)\uff1a\u7531\u4e8e fork \u64cd\u4f5c\u4f7f\u7528\u5199\u65f6\u590d\u5236\u6280\u672f\uff0c\u5b50\u8fdb\u7a0b\u53ea\u80fd\u5171\u4eab fork \u64cd\u4f5c\u65f6\u7684\u5185\u5b58\u6570\u636e\u3002<\/p>\n<\/li>\n<li>\n<p>\u7531\u4e8e\u7236\u8fdb\u7a0b\u4f9d\u7136\u5728\u54cd\u5e94\u547d\u4ee4\uff0c\u56e0\u6b64 Redis \u4f7f\u7528 AOF \u91cd\u5199\u7f13\u51b2\u533a(\u56fe\u4e2d\u7684 aof_rewrite_buf)\u4fdd\u5b58\u8fd9\u90e8\u5206\u6570\u636e\uff0c\u9632\u6b62\u65b0 AOF \u6587\u4ef6\u751f\u6210\u671f\u95f4\u4e22\u5931\u8fd9\u90e8\u5206\u6570\u636e\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0cbgrewriteaof \u6267\u884c\u671f\u95f4\uff0cRedis \u7684\u5199\u547d\u4ee4\u540c\u65f6\u8ffd\u52a0\u5230 aof_buf \u548c aof_rewirte_buf \u4e24\u4e2a\u7f13\u51b2\u533a\u3002<\/p>\n<\/li>\n<li>\n<p>4)\uff1a\u5b50\u8fdb\u7a0b\u6839\u636e\u5185\u5b58\u5feb\u7167\uff0c\u6309\u7167\u547d\u4ee4\u5408\u5e76\u89c4\u5219\u5199\u5165\u5230\u65b0\u7684 AOF \u6587\u4ef6\u3002<\/p>\n<\/li>\n<li>\n<p>5.1)\uff1a\u5b50\u8fdb\u7a0b\u5199\u5b8c\u65b0\u7684 AOF \u6587\u4ef6\u540e\uff0c\u5411\u7236\u8fdb\u7a0b\u53d1\u4fe1\u53f7\uff0c\u7236\u8fdb\u7a0b\u66f4\u65b0\u7edf\u8ba1\u4fe1\u606f\uff0c\u5177\u4f53\u53ef\u4ee5\u901a\u8fc7 info persistence \u67e5\u770b\u3002<\/p>\n<\/li>\n<li>\n<p>5.2)\uff1a\u7236\u8fdb\u7a0b\u628a AOF \u91cd\u5199\u7f13\u51b2\u533a\u7684\u6570\u636e\u5199\u5165\u5230\u65b0\u7684 AOF \u6587\u4ef6\uff0c\u8fd9\u6837\u5c31\u4fdd\u8bc1\u4e86\u65b0 AOF \u6587\u4ef6\u6240\u4fdd\u5b58\u7684\u6570\u636e\u5e93\u72b6\u6001\u548c\u670d\u52a1\u5668\u5f53\u524d\u72b6\u6001\u4e00\u81f4\u3002<\/p>\n<\/li>\n<li>\n<p>5.3)\uff1a\u4f7f\u7528\u65b0\u7684 AOF \u6587\u4ef6\u66ff\u6362\u8001\u6587\u4ef6\uff0c\u5b8c\u6210 AOF \u91cd\u5199\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: large\">\u542f\u52a8\u65f6\u52a0\u8f7d<\/span><\/strong><\/p>\n<p>\u524d\u9762\u63d0\u5230\u8fc7\uff0c\u5f53 AOF \u5f00\u542f\u65f6\uff0cRedis \u542f\u52a8\u65f6\u4f1a\u4f18\u5148\u8f7d\u5165 AOF \u6587\u4ef6\u6765\u6062\u590d\u6570\u636e\uff1b\u53ea\u6709\u5f53 AOF \u5173\u95ed\u65f6\uff0c\u624d\u4f1a\u8f7d\u5165 RDB \u6587\u4ef6\u6062\u590d\u6570\u636e\u3002<\/p>\n<p>\u5f53 AOF \u5f00\u542f\uff0c\u4e14 AOF \u6587\u4ef6\u5b58\u5728\u65f6\uff0cRedis \u542f\u52a8\u65e5\u5fd7\uff1a<\/p>\n<\/p>\n<p>\u5f53 AOF \u5f00\u542f\uff0c\u4f46 AOF \u6587\u4ef6\u4e0d\u5b58\u5728\u65f6\uff0c\u5373\u4f7f RDB \u6587\u4ef6\u5b58\u5728\u4e5f\u4e0d\u4f1a\u52a0\u8f7d(\u66f4\u65e9\u7684\u4e00\u4e9b\u7248\u672c\u53ef\u80fd\u4f1a\u52a0\u8f7d\uff0c\u4f46 3.0 \u4e0d\u4f1a)\uff0cRedis \u542f\u52a8\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><strong>\u6587\u4ef6\u6821\u9a8c<\/strong><\/p>\n<p>\u4e0e\u8f7d\u5165 RDB \u6587\u4ef6\u7c7b\u4f3c\uff0cRedis \u8f7d\u5165 AOF \u6587\u4ef6\u65f6\uff0c\u4f1a\u5bf9 AOF \u6587\u4ef6\u8fdb\u884c\u6821\u9a8c\uff0c\u5982\u679c\u6587\u4ef6\u635f\u574f\uff0c\u5219\u65e5\u5fd7\u4e2d\u4f1a\u6253\u5370\u9519\u8bef\uff0cRedis \u542f\u52a8\u5931\u8d25\u3002<\/p>\n<p>\u4f46\u5982\u679c\u662f AOF \u6587\u4ef6\u7ed3\u5c3e\u4e0d\u5b8c\u6574(\u673a\u5668\u7a81\u7136\u5b95\u673a\u7b49\u5bb9\u6613\u5bfc\u81f4\u6587\u4ef6\u5c3e\u90e8\u4e0d\u5b8c\u6574)\uff0c\u4e14 aof-load-truncated \u53c2\u6570\u5f00\u542f\uff0c\u5219\u65e5\u5fd7\u4e2d\u4f1a\u8f93\u51fa\u8b66\u544a\uff0cRedis \u5ffd\u7565\u6389 AOF \u6587\u4ef6\u7684\u5c3e\u90e8\uff0c\u542f\u52a8\u6210\u529f\u3002<\/p>\n<p>aof-load-truncated \u53c2\u6570\u9ed8\u8ba4\u662f\u5f00\u542f\u7684\uff1a<\/p>\n<\/p>\n<p><strong>\u4f2a\u5ba2\u6237\u7aef<\/strong><\/p>\n<p>\u56e0\u4e3a Redis \u7684\u547d\u4ee4\u53ea\u80fd\u5728\u5ba2\u6237\u7aef\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c\uff0c\u800c\u8f7d\u5165 AOF \u6587\u4ef6\u65f6\u547d\u4ee4\u662f\u76f4\u63a5\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u7684\uff0c\u5e76\u4e0d\u662f\u7531\u5ba2\u6237\u7aef\u53d1\u9001\u3002<\/p>\n<p>\u56e0\u6b64 Redis \u670d\u52a1\u5668\u5728\u8f7d\u5165 AOF \u6587\u4ef6\u4e4b\u524d\uff0c\u4f1a\u521b\u5efa\u4e00\u4e2a\u6ca1\u6709\u7f51\u7edc\u8fde\u63a5\u7684\u5ba2\u6237\u7aef\uff0c\u4e4b\u540e\u7528\u5b83\u6765\u6267\u884c AOF \u6587\u4ef6\u4e2d\u7684\u547d\u4ee4\uff0c\u547d\u4ee4\u6267\u884c\u7684\u6548\u679c\u4e0e\u5e26\u7f51\u7edc\u8fde\u63a5\u7684\u5ba2\u6237\u7aef\u5b8c\u5168\u4e00\u6837\u3002<\/p>\n<p><strong><span style=\"font-size: large\">AOF \u5e38\u7528\u914d\u7f6e\u603b\u7ed3<\/span><\/strong><\/p>\n<p>\u4e0b\u9762\u662f AOF \u5e38\u7528\u7684\u914d\u7f6e\u9879\uff0c\u4ee5\u53ca\u9ed8\u8ba4\u503c\uff1a<\/p>\n<ul>\n<li>\n<p>appendonly no\uff1a\u662f\u5426\u5f00\u542f AOF\u3002<\/p>\n<\/li>\n<li>\n<p>appendfilename &#8220;appendonly.aof&#8221;\uff1aAOF \u6587\u4ef6\u540d\u3002<\/p>\n<\/li>\n<li>\n<p>dir .\/\uff1aRDB \u6587\u4ef6\u548c AOF \u6587\u4ef6\u6240\u5728\u76ee\u5f55\u3002<\/p>\n<\/li>\n<li>\n<p>appendfsync everysec\uff1afsync \u6301\u4e45\u5316\u7b56\u7565\u3002<\/p>\n<\/li>\n<li>\n<p>no-appendfsync-on-rewrite no\uff1aAOF \u91cd\u5199\u671f\u95f4\u662f\u5426\u7981\u6b62 fsync\uff1b\u5982\u679c\u5f00\u542f\u8be5\u9009\u9879\uff0c\u53ef\u4ee5\u51cf\u8f7b\u6587\u4ef6\u91cd\u5199\u65f6 CPU \u548c\u786c\u76d8\u7684\u8d1f\u8f7d\uff08\u5c24\u5176\u662f\u786c\u76d8\uff09\uff0c\u4f46\u662f\u53ef\u80fd\u4f1a\u4e22\u5931 AOF \u91cd\u5199\u671f\u95f4\u7684\u6570\u636e\uff1b\u9700\u8981\u5728\u8d1f\u8f7d\u548c\u5b89\u5168\u6027\u4e4b\u95f4\u8fdb\u884c\u5e73\u8861\u3002<\/p>\n<\/li>\n<li>\n<p>auto-aof-rewrite-percentage 100\uff1a\u6587\u4ef6\u91cd\u5199\u89e6\u53d1\u6761\u4ef6\u4e4b\u4e00\u3002<\/p>\n<\/li>\n<li>\n<p>auto-aof-rewrite-min-size 64mb\uff1a\u6587\u4ef6\u91cd\u5199\u89e6\u53d1\u63d0\u4ea4\u4e4b\u4e00\u3002<\/p>\n<\/li>\n<li>\n<p>aof-load-truncated yes\uff1a\u5982\u679c AOF \u6587\u4ef6\u7ed3\u5c3e\u635f\u574f\uff0cRedis \u542f\u52a8\u65f6\u662f\u5426\u4ecd\u8f7d\u5165 AOF \u6587\u4ef6\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: x-large\">\u65b9\u6848\u9009\u62e9\u4e0e\u5e38\u89c1\u95ee\u9898<\/span><\/strong><\/p>\n<p>\u524d\u9762\u4ecb\u7ecd\u4e86 RDB \u548c AOF \u4e24\u79cd\u6301\u4e45\u5316\u65b9\u6848\u7684\u7ec6\u8282\uff0c\u4e0b\u9762\u4ecb\u7ecd RDB \u548c AOF \u7684\u7279\u70b9\u3001\u5982\u4f55\u9009\u62e9\u6301\u4e45\u5316\u65b9\u6848\uff0c\u4ee5\u53ca\u5728\u6301\u4e45\u5316\u8fc7\u7a0b\u4e2d\u5e38\u9047\u5230\u7684\u95ee\u9898\u7b49\u3002<\/p>\n<p><strong><span style=\"font-size: large\">RDB \u548c AOF \u7684\u4f18\u7f3a\u70b9<\/span><\/strong><\/p>\n<p>RDB \u548c AOF \u5404\u6709\u4f18\u7f3a\u70b9\uff1a<\/p>\n<p><strong>RDB \u6301\u4e45\u5316<\/strong><\/p>\n<p>\u4f18\u70b9\uff1aRDB \u6587\u4ef6\u7d27\u51d1\uff0c\u4f53\u79ef\u5c0f\uff0c\u7f51\u7edc\u4f20\u8f93\u5feb\uff0c\u9002\u5408\u5168\u91cf\u590d\u5236\uff1b\u6062\u590d\u901f\u5ea6\u6bd4 AOF \u5feb\u5f88\u591a\u3002\u5f53\u7136\uff0c\u4e0e AOF \u76f8\u6bd4\uff0cRDB \u6700\u91cd\u8981\u7684\u4f18\u70b9\u4e4b\u4e00\u662f\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\u76f8\u5bf9\u8f83\u5c0f\u3002<\/p>\n<p>\u7f3a\u70b9\uff1aRDB \u6587\u4ef6\u7684\u81f4\u547d\u7f3a\u70b9\u5728\u4e8e\u5176\u6570\u636e\u5feb\u7167\u7684\u6301\u4e45\u5316\u65b9\u5f0f\u51b3\u5b9a\u4e86\u5fc5\u7136\u505a\u4e0d\u5230\u5b9e\u65f6\u6301\u4e45\u5316\uff0c\u800c\u5728\u6570\u636e\u8d8a\u6765\u8d8a\u91cd\u8981\u7684\u4eca\u5929\uff0c\u6570\u636e\u7684\u5927\u91cf\u4e22\u5931\u5f88\u591a\u65f6\u5019\u662f\u65e0\u6cd5\u63a5\u53d7\u7684\uff0c\u56e0\u6b64 AOF \u6301\u4e45\u5316\u6210\u4e3a\u4e3b\u6d41\u3002<\/p>\n<p>\u6b64\u5916\uff0cRDB \u6587\u4ef6\u9700\u8981\u6ee1\u8db3\u7279\u5b9a\u683c\u5f0f\uff0c\u517c\u5bb9\u6027\u5dee\uff08\u5982\u8001\u7248\u672c\u7684 Redis \u4e0d\u517c\u5bb9\u65b0\u7248\u672c\u7684 RDB \u6587\u4ef6\uff09\u3002<\/p>\n<p><strong>AOF \u6301\u4e45\u5316<\/strong><\/p>\n<p>\u4e0e RDB \u6301\u4e45\u5316\u76f8\u5bf9\u5e94\uff0cAOF \u7684\u4f18\u70b9\u5728\u4e8e\u652f\u6301\u79d2\u7ea7\u6301\u4e45\u5316\u3001\u517c\u5bb9\u6027\u597d\uff0c\u7f3a\u70b9\u662f\u6587\u4ef6\u5927\u3001\u6062\u590d\u901f\u5ea6\u6162\u3001\u5bf9\u6027\u80fd\u5f71\u54cd\u5927\u3002<\/p>\n<p><span style=\"font-size: large\"><strong>\u6301\u4e45\u5316\u7b56\u7565\u9009\u62e9<\/strong><\/span><\/p>\n<p>\u5728\u4ecb\u7ecd\u6301\u4e45\u5316\u7b56\u7565\u4e4b\u524d\uff0c\u9996\u5148\u8981\u660e\u767d\u65e0\u8bba\u662f RDB \u8fd8\u662f AOF\uff0c\u6301\u4e45\u5316\u7684\u5f00\u542f\u90fd\u662f\u8981\u4ed8\u51fa\u6027\u80fd\u65b9\u9762\u4ee3\u4ef7\u7684\uff1a<\/p>\n<ul>\n<li>\n<p>\u5bf9\u4e8e RDB \u6301\u4e45\u5316\uff0c\u4e00\u65b9\u9762\u662f bgsave \u5728\u8fdb\u884c fork \u64cd\u4f5c\u65f6 Redis \u4e3b\u8fdb\u7a0b\u4f1a\u963b\u585e\uff0c\u53e6\u4e00\u65b9\u9762\uff0c\u5b50\u8fdb\u7a0b\u5411\u786c\u76d8\u5199\u6570\u636e\u4e5f\u4f1a\u5e26\u6765 IO \u538b\u529b\u3002<\/p>\n<\/li>\n<li>\n<p>\u5bf9\u4e8e AOF \u6301\u4e45\u5316\uff0c\u5411\u786c\u76d8\u5199\u6570\u636e\u7684\u9891\u7387\u5927\u5927\u63d0\u9ad8(everysec \u7b56\u7565\u4e0b\u4e3a\u79d2\u7ea7)\uff0cIO \u538b\u529b\u66f4\u5927\uff0c\u751a\u81f3\u53ef\u80fd\u9020\u6210 AOF \u8ffd\u52a0\u963b\u585e\u95ee\u9898\uff08\u540e\u9762\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u79cd\u963b\u585e\uff09\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u6b64\u5916\uff0cAOF \u6587\u4ef6\u7684\u91cd\u5199\u4e0e RDB \u7684 bgsave \u7c7b\u4f3c\uff0c\u4f1a\u6709 fork \u65f6\u7684\u963b\u585e\u548c\u5b50\u8fdb\u7a0b\u7684 IO \u538b\u529b\u95ee\u9898\u3002<\/p>\n<p>\u76f8\u5bf9\u6765\u8bf4\uff0c\u7531\u4e8e AOF \u5411\u786c\u76d8\u4e2d\u5199\u6570\u636e\u7684\u9891\u7387\u66f4\u9ad8\uff0c\u56e0\u6b64\u5bf9 Redis \u4e3b\u8fdb\u7a0b\u6027\u80fd\u7684\u5f71\u54cd\u4f1a\u66f4\u5927\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u6839\u636e\u6570\u636e\u91cf\u3001\u5e94\u7528\u5bf9\u6570\u636e\u7684\u5b89\u5168\u8981\u6c42\u3001\u9884\u7b97\u9650\u5236\u7b49\u4e0d\u540c\u60c5\u51b5\uff0c\u4f1a\u6709\u5404\u79cd\u5404\u6837\u7684\u6301\u4e45\u5316\u7b56\u7565\u3002<\/p>\n<p>\u5982\u5b8c\u5168\u4e0d\u4f7f\u7528\u4efb\u4f55\u6301\u4e45\u5316\u3001\u4f7f\u7528 RDB \u6216 AOF \u7684\u4e00\u79cd\uff0c\u6216\u540c\u65f6\u5f00\u542f RDB \u548c AOF \u6301\u4e45\u5316\u7b49\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u6301\u4e45\u5316\u7684\u9009\u62e9\u5fc5\u987b\u4e0e Redis \u7684\u4e3b\u4ece\u7b56\u7565\u4e00\u8d77\u8003\u8651\uff0c\u56e0\u4e3a\u4e3b\u4ece\u590d\u5236\u4e0e\u6301\u4e45\u5316\u540c\u6837\u5177\u6709\u6570\u636e\u5907\u4efd\u7684\u529f\u80fd\uff0c\u800c\u4e14\u4e3b\u673a master \u548c\u4ece\u673a slave \u53ef\u4ee5\u72ec\u7acb\u7684\u9009\u62e9\u6301\u4e45\u5316\u65b9\u6848\u3002<\/p>\n<p>\u4e0b\u9762\u5206\u573a\u666f\u6765\u8ba8\u8bba\u6301\u4e45\u5316\u7b56\u7565\u7684\u9009\u62e9\uff0c\u8ba8\u8bba\u4e5f\u53ea\u662f\u4f5c\u4e3a\u53c2\u8003\uff0c\u5b9e\u9645\u65b9\u6848\u53ef\u80fd\u66f4\u590d\u6742\u66f4\u5177\u591a\u6837\u6027\uff1a<\/p>\n<ul>\n<li>\n<p>\u5982\u679c Redis \u4e2d\u7684\u6570\u636e\u5b8c\u5168\u4e22\u5f03\u4e5f\u6ca1\u6709\u5173\u7cfb\uff08\u5982 Redis \u5b8c\u5168\u7528\u4f5c DB \u5c42\u6570\u636e\u7684 Cache\uff09\uff0c\u90a3\u4e48\u65e0\u8bba\u662f\u5355\u673a\uff0c\u8fd8\u662f\u4e3b\u4ece\u67b6\u6784\uff0c\u90fd\u53ef\u4ee5\u4e0d\u8fdb\u884c\u4efb\u4f55\u6301\u4e45\u5316\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u5355\u673a\u73af\u5883\u4e0b\uff08\u5bf9\u4e8e\u4e2a\u4eba\u5f00\u53d1\u8005\uff0c\u8fd9\u79cd\u60c5\u51b5\u53ef\u80fd\u6bd4\u8f83\u5e38\u89c1\uff09\uff0c\u5982\u679c\u53ef\u4ee5\u63a5\u53d7\u5341\u51e0\u5206\u949f\u6216\u66f4\u591a\u7684\u6570\u636e\u4e22\u5931\uff0c\u9009\u62e9 RDB \u5bf9 Redis \u7684\u6027\u80fd\u66f4\u52a0\u6709\u5229\uff1b\u5982\u679c\u53ea\u80fd\u63a5\u53d7\u79d2\u7ea7\u522b\u7684\u6570\u636e\u4e22\u5931\uff0c\u5e94\u8be5\u9009\u62e9 AOF\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f46\u5728\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u90fd\u4f1a\u914d\u7f6e\u4e3b\u4ece\u73af\u5883\uff0cslave \u7684\u5b58\u5728\u65e2\u53ef\u4ee5\u5b9e\u73b0\u6570\u636e\u7684\u70ed\u5907\uff0c\u4e5f\u53ef\u4ee5\u8fdb\u884c\u8bfb\u5199\u5206\u79bb\u5206\u62c5 Redis \u8bfb\u8bf7\u6c42\uff0c\u4ee5\u53ca\u5728 master \u5b95\u6389\u540e\u7ee7\u7eed\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4e00\u79cd\u53ef\u884c\u7684\u505a\u6cd5\u662f\uff1a<\/p>\n<ul>\n<li>\n<p>master\uff1a\u5b8c\u5168\u5173\u95ed\u6301\u4e45\u5316\uff08\u5305\u62ec RDB \u548c AOF\uff09\uff0c\u8fd9\u6837\u53ef\u4ee5\u8ba9 master \u7684\u6027\u80fd\u8fbe\u5230***\u3002<\/p>\n<\/li>\n<li>\n<p>slave\uff1a\u5173\u95ed RDB\uff0c\u5f00\u542f AOF\uff08\u5982\u679c\u5bf9\u6570\u636e\u5b89\u5168\u8981\u6c42\u4e0d\u9ad8\uff0c\u5f00\u542f RDB \u5173\u95ed AOF \u4e5f\u53ef\u4ee5\uff09\uff0c\u5e76\u5b9a\u65f6\u5bf9\u6301\u4e45\u5316\u6587\u4ef6\u8fdb\u884c\u5907\u4efd\uff08\u5982\u5907\u4efd\u5230\u5176\u4ed6\u6587\u4ef6\u5939\uff0c\u5e76\u6807\u8bb0\u597d\u5907\u4efd\u7684\u65f6\u95f4\uff09\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u7136\u540e\u5173\u95ed AOF \u7684\u81ea\u52a8\u91cd\u5199\uff0c\u7136\u540e\u6dfb\u52a0\u5b9a\u65f6\u4efb\u52a1\uff0c\u5728\u6bcf\u5929 Redis \u95f2\u65f6\uff08\u5982\u51cc\u6668 12 \u70b9\uff09\u8c03\u7528 bgrewriteaof\u3002<\/p>\n<p>\u8fd9\u91cc\u9700\u8981\u89e3\u91ca\u4e00\u4e0b\uff0c\u4e3a\u4ec0\u4e48\u5f00\u542f\u4e86\u4e3b\u4ece\u590d\u5236\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6570\u636e\u7684\u70ed\u5907\u4efd\uff0c\u8fd8\u9700\u8981\u8bbe\u7f6e\u6301\u4e45\u5316\u5462\uff1f<\/p>\n<p>\u56e0\u4e3a\u5728\u4e00\u4e9b\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u4e3b\u4ece\u590d\u5236\u4ecd\u7136\u4e0d\u8db3\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\n<p>master \u548c slave \u8fdb\u7a0b\u540c\u65f6\u505c\u6b62\uff1a\u8003\u8651\u8fd9\u6837\u4e00\u79cd\u573a\u666f\uff0c\u5982\u679c master \u548c slave \u5728\u540c\u4e00\u680b\u5927\u697c\u6216\u540c\u4e00\u4e2a\u673a\u623f\uff0c\u5219\u4e00\u6b21\u505c\u7535\u4e8b\u6545\u5c31\u53ef\u80fd\u5bfc\u81f4 master \u548c slave \u673a\u5668\u540c\u65f6\u5173\u673a\uff0cRedis \u8fdb\u7a0b\u505c\u6b62\uff1b\u5982\u679c\u6ca1\u6709\u6301\u4e45\u5316\uff0c\u5219\u9762\u4e34\u7684\u662f\u6570\u636e\u7684\u5b8c\u5168\u4e22\u5931\u3002<\/p>\n<\/li>\n<li>\n<p>master\u8bef\u91cd\u542f\uff1a\u8003\u8651\u8fd9\u6837\u4e00\u79cd\u573a\u666f\uff0cmaster \u670d\u52a1\u56e0\u4e3a\u6545\u969c\u5b95\u6389\u4e86\uff0c\u5982\u679c\u7cfb\u7edf\u4e2d\u6709\u81ea\u52a8\u62c9\u8d77\u673a\u5236\uff08\u5373\u68c0\u6d4b\u5230\u670d\u52a1\u505c\u6b62\u540e\u91cd\u542f\u8be5\u670d\u52a1\uff09\u5c06 master \u81ea\u52a8\u91cd\u542f\uff0c\u7531\u4e8e\u6ca1\u6709\u6301\u4e45\u5316\u6587\u4ef6\uff0c\u90a3\u4e48 master \u91cd\u542f\u540e\u6570\u636e\u662f\u7a7a\u7684\uff0cslave \u540c\u6b65\u6570\u636e\u4e5f\u53d8\u6210\u4e86\u7a7a\u7684\uff1b\u5982\u679c master \u548c slave \u90fd\u6ca1\u6709\u6301\u4e45\u5316\uff0c\u540c\u6837\u4f1a\u9762\u4e34\u6570\u636e\u7684\u5b8c\u5168\u4e22\u5931\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5373\u4fbf\u662f\u4f7f\u7528\u4e86\u54e8\u5175(\u5173\u4e8e\u54e8\u5175\u540e\u9762\u4f1a\u6709\u6587\u7ae0\u4ecb\u7ecd)\u8fdb\u884c\u81ea\u52a8\u7684\u4e3b\u4ece\u5207\u6362\uff0c\u4e5f\u6709\u53ef\u80fd\u5728\u54e8\u5175\u8f6e\u8be2\u5230 master \u4e4b\u524d\uff0c\u4fbf\u88ab\u81ea\u52a8\u62c9\u8d77\u673a\u5236\u91cd\u542f\u4e86\u3002\u56e0\u6b64\uff0c\u5e94\u5c3d\u91cf\u907f\u514d\u201c\u81ea\u52a8\u62c9\u8d77\u673a\u5236\u201d\u548c\u201c\u4e0d\u505a\u6301\u4e45\u5316\u201d\u540c\u65f6\u51fa\u73b0\u3002<\/p>\n<p>\u5f02\u5730\u707e\u5907\uff1a\u4e0a\u8ff0\u8ba8\u8bba\u7684\u51e0\u79cd\u6301\u4e45\u5316\u7b56\u7565\uff0c\u9488\u5bf9\u7684\u90fd\u662f\u4e00\u822c\u7684\u7cfb\u7edf\u6545\u969c\uff0c\u5982\u8fdb\u7a0b\u5f02\u5e38\u9000\u51fa\u3001\u5b95\u673a\u3001\u65ad\u7535\u7b49\uff0c\u8fd9\u4e9b\u6545\u969c\u4e0d\u4f1a\u635f\u574f\u786c\u76d8\u3002<\/p>\n<p>\u4f46\u662f\u5bf9\u4e8e\u4e00\u4e9b\u53ef\u80fd\u5bfc\u81f4\u786c\u76d8\u635f\u574f\u7684\u707e\u96be\u60c5\u51b5\uff0c\u5982\u706b\u707e\u5730\u9707\uff0c\u5c31\u9700\u8981\u8fdb\u884c\u5f02\u5730\u707e\u5907\u3002<\/p>\n<p>\u4f8b\u5982\u5bf9\u4e8e\u5355\u673a\u7684\u60c5\u5f62\uff0c\u53ef\u4ee5\u5b9a\u65f6\u5c06 RDB \u6587\u4ef6\u6216\u91cd\u5199\u540e\u7684 AOF \u6587\u4ef6\uff0c\u901a\u8fc7 scp \u62f7\u8d1d\u5230\u8fdc\u7a0b\u673a\u5668\uff0c\u5982\u963f\u91cc\u4e91\u3001AWS \u7b49\u3002<\/p>\n<p>\u5bf9\u4e8e\u4e3b\u4ece\u7684\u60c5\u5f62\uff0c\u53ef\u4ee5\u5b9a\u65f6\u5728 master \u4e0a\u6267\u884c bgsave\uff0c\u7136\u540e\u5c06 RDB \u6587\u4ef6\u62f7\u8d1d\u5230\u8fdc\u7a0b\u673a\u5668\uff0c\u6216\u8005\u5728 slave \u4e0a\u6267\u884c bgrewriteaof \u91cd\u5199 AOF \u6587\u4ef6\u540e\uff0c\u5c06 AOF \u6587\u4ef6\u62f7\u8d1d\u5230\u8fdc\u7a0b\u673a\u5668\u4e0a\u3002<\/p>\n<p>\u4e00\u822c\u6765\u8bf4\uff0c\u7531\u4e8e RDB \u6587\u4ef6\u6587\u4ef6\u5c0f\u3001\u6062\u590d\u5feb\uff0c\u56e0\u6b64\u707e\u96be\u6062\u590d\u5e38\u7528 RDB \u6587\u4ef6\uff1b\u5f02\u5730\u5907\u4efd\u7684\u9891\u7387\u6839\u636e\u6570\u636e\u5b89\u5168\u6027\u7684\u9700\u8981\u53ca\u5176\u4ed6\u6761\u4ef6\u6765\u786e\u5b9a\uff0c\u4f46***\u4e0d\u8981\u4f4e\u4e8e\u4e00\u5929\u4e00\u6b21\u3002<\/p>\n<p><strong><span style=\"font-size: large\">fork \u963b\u585e\uff1aCPU \u7684\u963b\u585e<\/span><\/strong><\/p>\n<p>\u5728 Redis \u7684\u5b9e\u8df5\u4e2d\uff0c\u4f17\u591a\u56e0\u7d20\u9650\u5236\u4e86 Redis \u5355\u673a\u7684\u5185\u5b58\u4e0d\u80fd\u8fc7\u5927\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\n<p>\u5f53\u9762\u5bf9\u8bf7\u6c42\u7684\u66b4\u589e\uff0c\u9700\u8981\u4ece\u5e93\u6269\u5bb9\u65f6\uff0cRedis \u5185\u5b58\u8fc7\u5927\u4f1a\u5bfc\u81f4\u6269\u5bb9\u65f6\u95f4\u592a\u957f\u3002<\/p>\n<\/li>\n<li>\n<p>\u5f53\u4e3b\u673a\u5b95\u673a\u65f6\uff0c\u5207\u6362\u4e3b\u673a\u540e\u9700\u8981\u6302\u8f7d\u4ece\u5e93\uff0cRedis \u5185\u5b58\u8fc7\u5927\u5bfc\u81f4\u6302\u8f7d\u901f\u5ea6\u8fc7\u6162\u3002<\/p>\n<\/li>\n<li>\n<p>\u6301\u4e45\u5316\u8fc7\u7a0b\u4e2d\u7684 fork \u64cd\u4f5c\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u9996\u5148\u8bf4\u660e\u4e00\u4e0b fork \u64cd\u4f5c\uff1a\u7236\u8fdb\u7a0b\u901a\u8fc7 fork \u64cd\u4f5c\u53ef\u4ee5\u521b\u5efa\u5b50\u8fdb\u7a0b\uff1b\u5b50\u8fdb\u7a0b\u521b\u5efa\u540e\uff0c\u7236\u5b50\u8fdb\u7a0b\u5171\u4eab\u4ee3\u7801\u6bb5\uff0c\u4e0d\u5171\u4eab\u8fdb\u7a0b\u7684\u6570\u636e\u7a7a\u95f4\uff0c\u4f46\u662f\u5b50\u8fdb\u7a0b\u4f1a\u83b7\u5f97\u7236\u8fdb\u7a0b\u7684\u6570\u636e\u7a7a\u95f4\u7684\u526f\u672c\u3002<\/p>\n<p>\u5728\u64cd\u4f5c\u7cfb\u7edf fork \u7684\u5b9e\u9645\u5b9e\u73b0\u4e2d\uff0c\u57fa\u672c\u90fd\u91c7\u7528\u4e86\u5199\u65f6\u590d\u5236\u6280\u672f\uff0c\u5373\u5728\u7236\/\u5b50\u8fdb\u7a0b\u8bd5\u56fe\u4fee\u6539\u6570\u636e\u7a7a\u95f4\u4e4b\u524d\uff0c\u7236\u5b50\u8fdb\u7a0b\u5b9e\u9645\u4e0a\u5171\u4eab\u6570\u636e\u7a7a\u95f4\u3002<\/p>\n<p>\u4f46\u662f\u5f53\u7236\/\u5b50\u8fdb\u7a0b\u7684\u4efb\u4f55\u4e00\u4e2a\u8bd5\u56fe\u4fee\u6539\u6570\u636e\u7a7a\u95f4\u65f6\uff0c\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u4e3a\u4fee\u6539\u7684\u90a3\u4e00\u90e8\u5206(\u5185\u5b58\u7684\u4e00\u9875)\u5236\u4f5c\u4e00\u4e2a\u526f\u672c\u3002<\/p>\n<p>\u867d\u7136 fork \u65f6\uff0c\u5b50\u8fdb\u7a0b\u4e0d\u4f1a\u590d\u5236\u7236\u8fdb\u7a0b\u7684\u6570\u636e\u7a7a\u95f4\uff0c\u4f46\u662f\u4f1a\u590d\u5236\u5185\u5b58\u9875\u8868\uff08\u9875\u8868\u76f8\u5f53\u4e8e\u5185\u5b58\u7684\u7d22\u5f15\u3001\u76ee\u5f55\uff09\uff1b\u7236\u8fdb\u7a0b\u7684\u6570\u636e\u7a7a\u95f4\u8d8a\u5927\uff0c\u5185\u5b58\u9875\u8868\u8d8a\u5927\uff0cfork \u65f6\u590d\u5236\u8017\u65f6\u4e5f\u4f1a\u8d8a\u591a\u3002<\/p>\n<p>\u5728 Redis \u4e2d\uff0c\u65e0\u8bba\u662f RDB \u6301\u4e45\u5316\u7684 bgsave\uff0c\u8fd8\u662f AOF \u91cd\u5199\u7684 bgrewriteaof\uff0c\u90fd\u9700\u8981 fork \u51fa\u5b50\u8fdb\u7a0b\u6765\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<p>\u5982\u679c Redis \u5185\u5b58\u8fc7\u5927\uff0c\u4f1a\u5bfc\u81f4 fork \u64cd\u4f5c\u65f6\u590d\u5236\u5185\u5b58\u9875\u8868\u8017\u65f6\u8fc7\u591a\uff1b\u800c Redis \u4e3b\u8fdb\u7a0b\u5728\u8fdb\u884c fork \u65f6\uff0c\u662f\u5b8c\u5168\u963b\u585e\u7684\uff0c\u4e5f\u5c31\u610f\u5473\u7740\u65e0\u6cd5\u54cd\u5e94\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\uff0c\u4f1a\u9020\u6210\u8bf7\u6c42\u5ef6\u8fdf\u8fc7\u5927\u3002<\/p>\n<p>\u5bf9\u4e8e\u4e0d\u540c\u7684\u786c\u4ef6\u3001\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0cfork \u64cd\u4f5c\u7684\u8017\u65f6\u4f1a\u6709\u6240\u5dee\u522b\uff0c\u4e00\u822c\u6765\u8bf4\uff0c\u5982\u679c Redis \u5355\u673a\u5185\u5b58\u8fbe\u5230\u4e86 10GB\uff0cfork \u65f6\u8017\u65f6\u53ef\u80fd\u4f1a\u8fbe\u5230\u767e\u6beb\u79d2\u7ea7\u522b\uff08\u5982\u679c\u4f7f\u7528 Xen \u865a\u62df\u673a\uff0c\u8fd9\u4e2a\u8017\u65f6\u53ef\u80fd\u8fbe\u5230\u79d2\u7ea7\u522b\uff09\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u4e00\u822c\u6765\u8bf4 Redis \u5355\u673a\u5185\u5b58\u4e00\u822c\u8981\u9650\u5236\u5728 10GB \u4ee5\u5185\uff1b\u4e0d\u8fc7\u8fd9\u4e2a\u6570\u636e\u5e76\u4e0d\u662f\u7edd\u5bf9\u7684\uff0c\u53ef\u4ee5\u901a\u8fc7\u89c2\u5bdf\u7ebf\u4e0a\u73af\u5883 fork \u7684\u8017\u65f6\u6765\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n<p>\u89c2\u5bdf\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a\u6267\u884c\u547d\u4ee4 info stats\uff0c\u67e5\u770b latest_fork_usec \u7684\u503c\uff0c\u5355\u4f4d\u4e3a\u5fae\u79d2\u3002<\/p>\n<p>\u4e3a\u4e86\u51cf\u8f7b fork \u64cd\u4f5c\u5e26\u6765\u7684\u963b\u585e\u95ee\u9898\uff0c\u9664\u4e86\u63a7\u5236 Redis \u5355\u673a\u5185\u5b58\u7684\u5927\u5c0f\u4ee5\u5916\uff0c\u8fd8\u53ef\u4ee5\u9002\u5ea6\u653e\u5bbd AOF \u91cd\u5199\u7684\u89e6\u53d1\u6761\u4ef6\u3001\u9009\u7528\u7269\u7406\u673a\u6216\u9ad8\u6548\u652f\u6301 fork \u64cd\u4f5c\u7684\u865a\u62df\u5316\u6280\u672f\u7b49\uff0c\u4f8b\u5982\u4f7f\u7528 Vmware \u6216 KVM \u865a\u62df\u673a\uff0c\u4e0d\u8981\u4f7f\u7528 Xen \u865a\u62df\u673a\u3002<\/p>\n<p><strong><span style=\"font-size: large\">AOF \u8ffd\u52a0\u963b\u585e\uff1a\u786c\u76d8\u7684\u963b\u585e<\/span><\/strong><\/p>\n<p>\u524d\u9762\u63d0\u5230\u8fc7\uff0c\u5728 AOF \u4e2d\uff0c\u5982\u679c AOF \u7f13\u51b2\u533a\u7684\u6587\u4ef6\u540c\u6b65\u7b56\u7565\u4e3a everysec\uff0c\u5219\u5728\u4e3b\u7ebf\u7a0b\u4e2d\uff0c\u547d\u4ee4\u5199\u5165 aof_buf \u540e\u8c03\u7528\u7cfb\u7edf write \u64cd\u4f5c\uff0cwrite \u5b8c\u6210\u540e\u4e3b\u7ebf\u7a0b\u8fd4\u56de\u3002<\/p>\n<p>fsync \u540c\u6b65\u6587\u4ef6\u64cd\u4f5c\u7531\u4e13\u95e8\u7684\u6587\u4ef6\u540c\u6b65\u7ebf\u7a0b\u6bcf\u79d2\u8c03\u7528\u4e00\u6b21\u3002\u8fd9\u79cd\u505a\u6cd5\u7684\u95ee\u9898\u5728\u4e8e\uff0c\u5982\u679c\u786c\u76d8\u8d1f\u8f7d\u8fc7\u9ad8\uff0c\u90a3\u4e48 fsync \u64cd\u4f5c\u53ef\u80fd\u4f1a\u8d85\u8fc7 1s\u3002<\/p>\n<p>\u5982\u679c Redis \u4e3b\u7ebf\u7a0b\u6301\u7eed\u9ad8\u901f\u5411 aof_buf \u5199\u5165\u547d\u4ee4\uff0c\u786c\u76d8\u7684\u8d1f\u8f7d\u53ef\u80fd\u4f1a\u8d8a\u6765\u8d8a\u5927\uff0cIO \u8d44\u6e90\u6d88\u8017\u66f4\u5feb\uff1b\u5982\u679c\u6b64\u65f6 Redis \u8fdb\u7a0b\u5f02\u5e38\u9000\u51fa\uff0c\u4e22\u5931\u7684\u6570\u636e\u4e5f\u4f1a\u8d8a\u6765\u8d8a\u591a\uff0c\u53ef\u80fd\u8fdc\u8d85\u8fc7 1s\u3002<\/p>\n<p>\u4e3a\u6b64\uff0cRedis \u7684\u5904\u7406\u7b56\u7565\u662f\u8fd9\u6837\u7684\uff1a\u4e3b\u7ebf\u7a0b\u6bcf\u6b21\u8fdb\u884c AOF \u4f1a\u5bf9\u6bd4\u4e0a\u6b21 fsync \u6210\u529f\u7684\u65f6\u95f4\uff1b\u5982\u679c\u8ddd\u4e0a\u6b21\u4e0d\u5230 2s\uff0c\u4e3b\u7ebf\u7a0b\u76f4\u63a5\u8fd4\u56de\uff1b\u5982\u679c\u8d85\u8fc7 2s\uff0c\u5219\u4e3b\u7ebf\u7a0b\u963b\u585e\u76f4\u5230 fsync \u540c\u6b65\u5b8c\u6210\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u5982\u679c\u7cfb\u7edf\u786c\u76d8\u8d1f\u8f7d\u8fc7\u5927\u5bfc\u81f4 fsync \u901f\u5ea6\u592a\u6162\uff0c\u4f1a\u5bfc\u81f4 Redis \u4e3b\u7ebf\u7a0b\u7684\u963b\u585e\uff1b\u6b64\u5916\uff0c\u4f7f\u7528 everysec \u914d\u7f6e\uff0cAOF \u6700\u591a\u53ef\u80fd\u4e22\u5931 2s \u7684\u6570\u636e\uff0c\u800c\u4e0d\u662f 1s\u3002<\/p>\n<p>AOF \u8ffd\u52a0\u963b\u585e\u95ee\u9898\u5b9a\u4f4d\u7684\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li>\n<p>\u76d1\u63a7 info Persistence \u4e2d\u7684 aof_delayed_fsync\uff1a\u5f53 AOF \u8ffd\u52a0\u963b\u585e\u53d1\u751f\u65f6\uff08\u5373\u4e3b\u7ebf\u7a0b\u7b49\u5f85 fsync \u800c\u963b\u585e\uff09\uff0c\u8be5\u6307\u6807\u7d2f\u52a0\u3002<\/p>\n<\/li>\n<li>\n<p>AOF \u963b\u585e\u65f6\u7684 Redis \u65e5\u5fd7\uff1aAsynchronous AOF fsync is taking too long (disk is busy?). Writing the AOF buffer without waiting for fsync to complete, this may slow down Redis.<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c AOF \u8ffd\u52a0\u963b\u585e\u9891\u7e41\u53d1\u751f\uff0c\u8bf4\u660e\u7cfb\u7edf\u7684\u786c\u76d8\u8d1f\u8f7d\u592a\u5927\uff0c\u53ef\u4ee5\u8003\u8651\u66f4\u6362 IO \u901f\u5ea6\u66f4\u5feb\u7684\u786c\u76d8\uff0c\u6216\u8005\u901a\u8fc7 IO \u76d1\u63a7\u5206\u6790\u5de5\u5177\u5bf9\u7cfb\u7edf\u7684 IO \u8d1f\u8f7d\u8fdb\u884c\u5206\u6790\uff0c\u5982 iostat\uff08\u7cfb\u7edf\u7ea7 io\uff09\u3001iotop\uff08io \u7248\u7684 top\uff09\u3001pidstat \u7b49\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: large\">info \u547d\u4ee4\u4e0e\u6301\u4e45\u5316<\/span><\/strong><\/p>\n<p>\u524d\u9762\u63d0\u5230\u4e86\u4e00\u4e9b\u901a\u8fc7 info \u547d\u4ee4\u67e5\u770b\u6301\u4e45\u5316\u76f8\u5173\u72b6\u6001\u7684\u65b9\u6cd5\uff0c\u4e0b\u9762\u6765\u603b\u7ed3\u4e00\u4e0b\u3002<\/p>\n<p><strong>info Persistence<\/strong><\/p>\n<p>\u6267\u884c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>\u5176\u4e2d\u6bd4\u8f83\u91cd\u8981\u7684\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\n<p>rdb_last_bgsave_status\uff1a\u4e0a\u6b21 bgsave \u6267\u884c\u7ed3\u679c\uff0c\u53ef\u4ee5\u7528\u4e8e\u53d1\u73b0 bgsave \u9519\u8bef\u3002<\/p>\n<\/li>\n<li>\n<p>rdb_last_bgsave_time_sec\uff1a\u4e0a\u6b21 bgsave \u6267\u884c\u65f6\u95f4\uff08\u5355\u4f4d\u662f s\uff09\uff0c\u53ef\u4ee5\u7528\u4e8e\u53d1\u73b0 bgsave \u662f\u5426\u8017\u65f6\u8fc7\u957f\u3002<\/p>\n<\/li>\n<li>\n<p>aof_enabled\uff1aAOF \u662f\u5426\u5f00\u542f\u3002<\/p>\n<\/li>\n<li>\n<p>aof_last_rewrite_time_sec\uff1a\u4e0a\u6b21\u6587\u4ef6\u91cd\u5199\u6267\u884c\u65f6\u95f4\uff08\u5355\u4f4d\u662f s\uff09\uff0c\u53ef\u4ee5\u7528\u4e8e\u53d1\u73b0\u6587\u4ef6\u91cd\u5199\u662f\u5426\u8017\u65f6\u8fc7\u957f\u3002<\/p>\n<\/li>\n<li>\n<p>aof_last_bgrewrite_status\uff1a\u4e0a\u6b21 bgrewrite \u6267\u884c\u7ed3\u679c\uff0c\u53ef\u4ee5\u7528\u4e8e\u53d1\u73b0 bgrewrite \u9519\u8bef\u3002<\/p>\n<\/li>\n<li>\n<p>aof_buffer_length \u548c aof_rewrite_buffer_length\uff1aAOF \u7f13\u5b58\u533a\u5927\u5c0f\u548c AOF \u91cd\u5199\u7f13\u51b2\u533a\u5927\u5c0f\u3002<\/p>\n<\/li>\n<li>\n<p>aof_delayed_fsync\uff1aAOF \u8ffd\u52a0\u963b\u585e\u60c5\u51b5\u7684\u7edf\u8ba1\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>info stats<\/strong><\/p>\n<p>\u5176\u4e2d\u4e0e\u6301\u4e45\u5316\u5173\u7cfb\u8f83\u5927\u7684\u662f\uff1alatest_fork_usec\uff0c\u4ee3\u8868\u4e0a\u6b21 fork \u8017\u65f6\uff0c\u53ef\u4ee5\u53c2\u89c1\u524d\u9762\u7684\u8ba8\u8bba\u3002<\/p>\n<p><strong><span style=\"font-size: x-large\">\u603b\u7ed3<\/span><\/strong><\/p>\n<p>\u672c\u6587\u4e3b\u8981\u5185\u5bb9\u53ef\u4ee5\u603b\u7ed3\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\n<p>\u6301\u4e45\u5316\u5728 Redis \u9ad8\u53ef\u7528\u4e2d\u7684\u4f5c\u7528\uff1a\u6570\u636e\u5907\u4efd\uff0c\u4e0e\u4e3b\u4ece\u590d\u5236\u76f8\u6bd4\u5f3a\u8c03\u7684\u662f\u7531\u5185\u5b58\u5230\u786c\u76d8\u7684\u5907\u4efd\u3002<\/p>\n<\/li>\n<li>\n<p>RDB \u6301\u4e45\u5316\uff1a\u5c06\u6570\u636e\u5feb\u7167\u5907\u4efd\u5230\u786c\u76d8\uff1b\u4ecb\u7ecd\u4e86\u5176\u89e6\u53d1\u6761\u4ef6\uff08\u5305\u62ec\u624b\u52a8\u51fa\u53d1\u548c\u81ea\u52a8\u89e6\u53d1\uff09\u3001\u6267\u884c\u6d41\u7a0b\u3001RDB \u6587\u4ef6\u7b49\uff0c\u7279\u522b\u9700\u8981\u6ce8\u610f\u7684\u662f\u6587\u4ef6\u4fdd\u5b58\u64cd\u4f5c\u7531 fork \u51fa\u7684\u5b50\u8fdb\u7a0b\u6765\u8fdb\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>AOF \u6301\u4e45\u5316\uff1a\u5c06\u6267\u884c\u7684\u5199\u547d\u4ee4\u5907\u4efd\u5230\u786c\u76d8\uff08\u7c7b\u4f3c\u4e8e MySQL \u7684 binlog\uff09\uff0c\u4ecb\u7ecd\u4e86\u5176\u5f00\u542f\u65b9\u6cd5\u3001\u6267\u884c\u6d41\u7a0b\u7b49\uff0c\u7279\u522b\u9700\u8981\u6ce8\u610f\u7684\u662f\u6587\u4ef6\u540c\u6b65\u7b56\u7565\u7684\u9009\u62e9\uff08everysec\uff09\u3001\u6587\u4ef6\u91cd\u5199\u7684\u6d41\u7a0b\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e00\u4e9b\u73b0\u5b9e\u7684\u95ee\u9898\uff1a\u5305\u62ec\u5982\u4f55\u9009\u62e9\u6301\u4e45\u5316\u7b56\u7565\uff0c\u4ee5\u53ca\u9700\u8981\u6ce8\u610f\u7684 fork \u963b\u585e\u3001AOF \u8ffd\u52a0\u963b\u585e\u7b49\u3002<\/p>\n<\/li>\n<\/p>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u6587\u641e\u5b9aRedis\u9ad8\u53ef\u7528\u7279\u6027\u201c\u6301&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201448","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201448","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201448"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201448\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}