{"id":1386,"date":"2021-05-09T16:22:26","date_gmt":"2021-05-09T08:22:26","guid":{"rendered":"https:\/\/www.changxuan.top\/?p=1386"},"modified":"2021-05-14T13:25:56","modified_gmt":"2021-05-14T05:25:56","slug":"redis-%e7%9a%84%e6%8c%81%e4%b9%85%e5%8c%96","status":"publish","type":"post","link":"https:\/\/www.changxuan.top\/?p=1386","title":{"rendered":"Redis \u7684\u6301\u4e45\u5316"},"content":{"rendered":"\n<p> Redis \u662f\u4e00\u4e2a\u975e\u5173\u7cfb\u578b\u7684\u5185\u5b58\u6570\u636e\u5e93\uff0c\u4f7f\u7528\u5185\u5b58\u5b58\u50a8\u6570\u636e\u662f\u5b83\u80fd\u591f\u8fdb\u884c\u5feb\u901f\u5b58\u53d6\u6570\u636e\u7684\u539f\u56e0\u4e4b\u4e00\u3002<\/p>\n\n\n\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5e38\u6709\u4eba\u63d0\u5021\u628a Redis \u53ea\u4f5c\u4e3a\u4e00\u79cd\u80fd\u591f\u63d0\u9ad8\u7528\u6237\u4f53\u9a8c\u7684\u7ec4\u4ef6\u6765\u4f7f\u7528\uff0c \u4e5f\u5c31\u662f\u8bf4\u5373\u4f7f Redis \u670d\u52a1\u6302\u6389\u4e4b\u540e\u4e5f\u8981\u4fdd\u8bc1\u7cfb\u7edf\u6b63\u5e38\u4f7f\u7528\u3002\u4e0d\u8fc7\uff0c\u5728\u5f88\u591a\u7cfb\u7edf\u4e2d\u8fd8\u662f\u5e0c\u671b\u65e2\u80fd\u53d1\u6325 Redis \u57fa\u4e8e\u5185\u5b58\u5feb\u901f\u5b58\u53d6\u7684\u7279\u6027\uff0c\u53c8\u5e0c\u671b\u673a\u5668\u65ad\u7535\u6216 Redis\u670d\u52a1\u505c\u6b62\u540e\u6570\u636e\u4e0d\u4e22\u5931\u3002\u6240\u4ee5\uff0c\u624d\u5f15\u51fa\u4e86 Redis \u7684\u6301\u4e45\u5316\u529f\u80fd\u3002<\/p>\n\n\n\n<p>\u5728\u8bb8\u591a\u6280\u672f\u6587\u7ae0\u4e2d\uff0c\u63d0\u5230 Redis \u7684\u6301\u4e45\u5316\u65f6\u5f80\u5f80\u90fd\u4f1a\u76f4\u63a5\u629b\u51fa\u4e24\u4e2a\u540d\u8bcd RDB \u548c AOF\u3002\u7136\u540e\u63a5\u4e0b\u6765\u5c31\u662f\u5206\u522b\u4ecb\u7ecd\u8fd9\u4e24\u4e2a\u540d\u8bcd\u3002\u5f53\u7136\uff0c\u5982\u679c\u8981\u8c08 Redis \u7684\u6301\u4e45\u5316\u80af\u5b9a\u907f\u514d\u4e0d\u4e86\u8bb2 RDB \u548c AOF\uff0c\u4f46\u8fd9\u662f\u4ecb\u7ecd\u6301\u4e45\u5316\u6700\u6070\u5f53\u7684\u65b9\u5f0f\u5417\uff1f\u8fd9\u6837\u7684\u6587\u7ae0\u662f\u4e0d\u662f\u663e\u5f97\u6709\u4e9b\u751f\u786c\u5462\uff1f\u6240\u4ee5\uff0c\u5728\u5c1d\u8bd5\u5f04\u660e\u767d\u4e00\u4e2a\u4e8b\u7269\u7684\u539f\u7406\u65f6\u4e00\u5b9a\u8981\u4ece\u5934\u5230\u5c3e\u7684\u601d\u8003\u5b83\u5b58\u5728\u7684\u610f\u4e49\uff1f\u4e3a\u4e86\u89e3\u51b3\u4ec0\u4e48\u95ee\u9898\uff1f\u91c7\u7528\u4e86\u4ec0\u4e48\u65b9\u5f0f\uff1f\u8fbe\u5230\u4e86\u4ec0\u4e48\u76ee\u7684\uff1f\u81ea\u5df1\u6709\u6ca1\u6709\u5176\u5b83\u7684\u65b9\u6848\uff1f\u8fd9\u6837\u4ece\u95ee\u9898\u7684\u6e90\u5934\u5207\u5165\uff0c\u624d\u80fd\u5bf9\u8fd9\u4e2a\u4e8b\u7269\u7406\u89e3\u7684\u66f4\u52a0\u6df1\u523b\uff0c\u4ece\u800c\u80fd\u591f\u66f4\u597d\u7684\u5e2e\u52a9\u81ea\u5df1\u8fdb\u884c\u4e3e\u4e00\u53cd\u4e09\u3002\u800c\u4e0d\u662f\u4eba\u4e91\u4ea6\u4e91\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u77e5\u8bc6\u4ec5\u4ec5\u662f\u80cc\u8bf5\u4e0b\u6765\uff0c\u8fd9\u79cd\u6b7b\u8bb0\u786c\u80cc\u4e0b\u6765\u7684\u77e5\u8bc6\u5728\u8111\u6d77\u91cc\u7684\u4fdd\u8d28\u671f\u4e5f\u662f\u77ed\u7684\u53ef\u601c\u3002<\/p>\n\n\n\n<p>\u5728\u524d\u9762\uff0c\u6211\u4eec\u5df2\u7ecf\u63d0\u5230\u4e3a\u4ec0\u4e48\u9700\u8981\u5f15\u5165\u6301\u4e45\u5316\uff1f<strong>\u7b80\u5355\u7684\u6765\u8bf4\u6301\u4e45\u5316\u5c31\u662f\u628a\u5185\u5b58\u4e2d\u7684\u6570\u636e\u5b58\u50a8\u5230\u5916\u5b58\u4e0a\uff0c\u8fd9\u6837\u670d\u52a1\u505c\u6b62\u540e\uff0c\u5f53\u518d\u542f\u52a8\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u628a\u5916\u5b58\u7684\u6570\u636e\u8bfb\u53d6\u5230\u5185\u5b58\u4e2d\u4ece\u800c\u8fbe\u5230\u4e86\u4e0d\u4e22\u5931\u6570\u636e\u7684\u76ee\u7684\u3002<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RDB<\/h2>\n\n\n\n<p>\u5982\u679c\u8ba9\u4f60\u8bbe\u8ba1\u4e00\u4e2a\u6301\u4e45\u5316\u7684\u65b9\u6848\uff0c\u4f60\u4f1a\u600e\u4e48\u505a\u5462\uff1f\uff08\u5047\u88c5\u7ede\u5c3d\u8111\u6c41&#8230; &#8230;\uff09\u9996\u5148\uff0c<strong>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e00\u79cd\u7b80\u5355\u7684\u7b56\u7565\uff0c\u5c06 Redis \u4e2d\u6240\u6709\u7684\u6570\u636e\u6309\u7167\u4e00\u5b9a\u683c\u5f0f\u5168\u90e8\u5199\u5230\u78c1\u76d8\u4e0a\uff0c\u5373\u521b\u5efa\u6570\u636e\u7684\u5feb\u7167\u6587\u4ef6<\/strong>\u3002\u7136\u540e\uff0c\u4f60\u4e3a\u4e86\u5c3d\u91cf\u4fdd\u8bc1\u4e0d\u4e22\u6570\u636e\u9700\u8981\u8003\u8651\u4f7f\u7528\u5b9e\u65f6\u5199\u8fd8\u662f\u5b9a\u65f6\u5199\uff0c\u53c8\u6216\u8005\u7528\u5176\u5b83\u7b56\u7565\u3002\u5176\u5b9e\uff0c\u73b0\u5728\u7684\u4f60\u5df2\u7ecf\u5728\u5c1d\u8bd5\u7740\u53bb\u5b9e\u73b0 RDB \uff08Redis Database\uff09\u6301\u4e45\u5316\u7684\u673a\u5236\u4e86\u3002\u6240\u4ee5\uff0c\u4f60\u770b\u5b83\u5176\u5b9e\u5e76\u4e0d\u96be\u3002<strong>\u4e07\u4e08\u9ad8\u697c\u4ece\u5730\u8d77\uff0c\u5148\u4ece\u4e00\u4e2a\u7b80\u5355\u7684 idea \u5f00\u59cb\uff0c\u9010\u6e10\u53bb\u5b8c\u5584\u5b83\uff0c\u4e30\u5bcc\u5b83\u7684\u8fc7\u7a0b\u4fbf\u662f\u89e3\u51b3\u95ee\u9898\u7684\u8fc7\u7a0b\u3002<\/strong>\u4f8b\u5982\u7528\u8fd9\u79cd\u601d\u8def\u53bb\u5b66\u4e60\u8ba1\u7b97\u673a\u7f51\u7edc\u4e5f\u662f\u540c\u6837\u9002\u7528\u7684\uff0c\u4f60\u53ef\u4ee5\u7ed9\u81ea\u5df1\u51fa\u4e00\u4e2a\u95ee\u9898\u201c\u5982\u4f55\u8ba9\u4e24\u53f0\u7535\u8111\u8fdb\u884c\u901a\u4fe1\uff1f\u201d\uff0c\u81ea\u5df1\u60f3\u529e\u6cd5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u8fc7\u7a0b\u80af\u5b9a\u4f1a\u6bd4\u5728\u8ba1\u7b97\u673a\u7f51\u7edc\u8bfe\u5802\u4e0a\u6536\u83b7\u7684\u77e5\u8bc6\u66f4\u591a\uff0c\u4e5f\u66f4\u7262\u56fa\u3002<\/p>\n\n\n\n<p>\u5c3d\u7ba1\u4e0d\u9700\u8981\u6211\u4eec\u5199\u4ee3\u7801\u6765\u5b9e\u73b0 RDB \u6301\u4e45\u5316\uff0c\u4f46\u662f\u5e76\u4e0d\u59a8\u788d\u6211\u4eec\u6765\u601d\u8003\u4e00\u4e0b\u5047\u5982\u8ba9\u6211\u4eec\u6765\u5b9e\u73b0\u7684\u8bdd\u5927\u6982\u4f1a\u9047\u5230\u54ea\u4e9b\u95ee\u9898\uff1f\u4f8b\u5982\uff1a\u4ec0\u4e48\u65f6\u5019\u751f\u6210\u6570\u636e\u5feb\u7167\uff1f\u6587\u4ef6\u6570\u636e\u683c\u5f0f\u7684\u5b9a\u4e49\uff1f\u5982\u679c\u5728\u4e3b\u8fdb\u7a0b\u4e2d\u8fdb\u884c\u6301\u4e45\u5316\uff0c\u963b\u585e\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u540e\u4f1a\u4e0d\u4f1a\u6709\u5f71\u54cd\uff1f\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c31\u770b\u4e00\u4e0b RDB \u662f\u5982\u4f55\u505a\u7684\u5427\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u57fa\u672c\u547d\u4ee4<\/h3>\n\n\n\n<p>\u5728 Redis \u4e2d\uff0c\u63d0\u4f9b\u4e86\u4e24\u4e2a RDB \u6301\u4e45\u5316\u7684\u547d\u4ee4\uff1a <code> SAVE <\/code> \u548c <code>BGSAVE<\/code> \u3002\u6267\u884c <code>SAVE<\/code> \u65f6\uff0cRedis \u670d\u52a1\u4f1a\u505c\u6b62\u5904\u7406\u4efb\u4f55\u5ba2\u6237\u7aef\u7684\u547d\u4ee4\u8bf7\u6c42\uff1b\u6267\u884c <code>BGSAVE<\/code> \u65f6\uff0cRedis \u670d\u52a1\u5219\u4f1a\u521b\u5efa\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u7531\u5b50\u8fdb\u7a0b\u6765\u8d1f\u8d23\u6570\u636e\u7684\u6301\u4e45\u5316\uff0c\u800c\u6b64\u65f6 Redis \u670d\u52a1\u5c31\u53ef\u4ee5\u6b63\u5e38\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002<\/p>\n\n\n\n<p><code>BGSAVE<\/code> \u89e3\u51b3\u4e86\u6211\u4eec\u5bf9\u4e8e\u6301\u4e45\u5316\u65f6\u662f\u5426\u4f1a\u5f71\u54cd Redis \u670d\u52a1\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u7684\u62c5\u5fc3\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u81ea\u52a8\u95f4\u9694\u6027\u4fdd\u5b58<\/h3>\n\n\n\n<p><strong>\u81ea\u52a8\u95f4\u9694\u6027\u4fdd\u5b58<\/strong>\uff0c\u5219\u89e3\u51b3\u4e86\u201c\u4ec0\u4e48\u65f6\u5019\u751f\u6210\u6570\u636e\u5feb\u7167\uff1f\u201d\u7684\u95ee\u9898\u3002\u5728 Redis \u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u6211\u4eec\u53ef\u4ee5\u5199\u5165\u4ee5\u4e0b\u914d\u7f6e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">save 600 1\nsave 300 10\nsave 60 100\nsave 30 1000<\/pre>\n\n\n\n<p>\u4e0a\u9762\u7684\u914d\u7f6e\u8868\u793a\uff0c\u5982\u679c\u5728 600 \u79d2\u5185\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u4e86 1 \u6b21\u4fee\u6539\uff0c\u5c31\u6267\u884c\u6267\u884c\u4e00\u6b21 BGSAVE \u547d\u4ee4\uff1b\u5982\u679c\u5728 300 \u79d2\u5185\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u4e86 10 \u6b21\u4fee\u6539\uff0c\u5c31\u6267\u884c\u4e00\u6b21 BGSAVE \u547d\u4ee4\uff1b\u4ee5\u6b64\u7c7b\u63a8\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u4f60\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u914d\u7f6e save \u7684\u53c2\u6570\uff0c\u4e5f\u4e0d\u4ec5\u4ec5\u5c40\u9650\u4e8e 4 \u6761\u914d\u7f6e\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u5b9e\u73b0\u539f\u7406<\/h4>\n\n\n\n<p>\u5728 Redis \u542f\u52a8\u65f6\uff0c\u4f1a\u628a\u4e0a\u8ff0\u914d\u7f6e\u5b58\u50a8\u5230 Redis \u670d\u52a1\u5668\u7684\u72b6\u6001\u4e2d\uff0c\u5177\u4f53\u7684\u7ed3\u6784\u4f53\u5219\u662f redisServer\uff0c\u5b58\u50a8 save \u53c2\u6570\u7684\u7ed3\u6784\u4f53\u4e3a saveparam\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Redis \u670d\u52a1\u5668\u72b6\u6001\u4fe1\u606f\u7ed3\u6784\u4f53\nstruct redisServer {\n    \/\/ ... ...\n\n    \/\/ \u8bb0\u5f55\u591a\u4e2a save \u914d\u7f6e\u53c2\u6570\n    struct saveparam *saveparams;\n    \/\/ \u4fee\u6539\u6b21\u6570\u8ba1\u6570\u5668\n    long long dirty;\n    \/\/ \u4e0a\u6b21\u6267\u884c\u4fdd\u5b58\u7684\u65f6\u95f4\n    time_t lastsave;\n    \n    \/\/ ... ...\n}\n\/\/ Save \u53c2\u6570\u7ed3\u6784\u4f53 saveparam \nstruct saveparam {\n    \/\/ \u79d2\u6570\n    time_t seconds;\n    \/\/ \u4fee\u6539\u6570\n    int changes;\n}<\/pre>\n\n\n\n<p>\u770b\u5230\u4e0a\u9762 redisServer \u7ed3\u6784\u4f53\u7684\u5c5e\u6027\u4fe1\u606f\uff0c\u4f60\u5fc3\u91cc\u5e94\u8be5\u6709\u7b54\u6848\u4e86\u5427\uff1fdirty \u8868\u793a\u7684\u662f\u81ea\u4ece\u4e0a\u6b21\u6267\u884c SAVE \u6216\u8005 BGSAVE \u547d\u4ee4\u5b8c\u6210\u4e4b\u540e\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u4fee\u6539\u7684\u6b21\u6570\uff1blastsave \u8868\u793a\u7684\u662f\u4e0a\u6b21\u6210\u529f\u6267\u884cSAVE \u6216\u8005 BGSAVE \u547d\u4ee4\u7684\u65f6\u95f4\u3002\u8fd9\u4e2a\u65f6\u5019\uff0c\u5982\u679c\u518d\u6709\u4e2a\u673a\u5236\u80fd\u591f\u5b9a\u65f6\u68c0\u67e5\u662f\u5426\u6709\u6ee1\u8db3\u6761\u4ef6\u7684\u914d\u7f6e\u53c2\u6570\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<p>Redis \u63d0\u4f9b\u4e86\u4e00\u4e2a\u5468\u671f\u6027\u64cd\u4f5c\u51fd\u6570 serverCron\uff0c\u6bcf 100 ms \u4f1a\u6267\u884c\u4e00\u6b21\u3002\u5b83\u5176\u4e2d\u7684\u4e00\u9879\u5de5\u4f5c\u5c31\u662f\u6765\u68c0\u67e5\u662f\u5426\u6709\u7b26\u5408\u6761\u4ef6\u7684 save \u53c2\u6570\uff0c\u5982\u679c\u5b58\u5728\u7b26\u5408\u6761\u4ef6\u7684\u53c2\u6570\u5219\u6267\u884c BGSAVE \u547d\u4ee4\uff0c\u6267\u884c\u5b8c\u6bd5\u4e4b\u540e\u5c06 dirty \u548c lastsave \u7684\u503c\u91cd\u7f6e\u3002\u76f8\u4fe1\u53ea\u8981\u6709\u57fa\u7840\u7684\u7f16\u7a0b\u77e5\u8bc6\uff0c\u6839\u636e\u8fd9\u4e9b\u53d8\u91cf\u5c31\u80fd\u5b9e\u73b0\u8fd9\u4e2a\u68c0\u67e5\u7684\u8fc7\u7a0b\u5427\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6587\u4ef6\u7ed3\u6784<\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"736\" height=\"498\" src=\"https:\/\/www.changxuan.top\/wp-content\/uploads\/2021\/04\/Redis-RDB\u6587\u4ef6\u7ed3\u6784.png\" alt=\"\" class=\"wp-image-1411\" srcset=\"https:\/\/www.changxuan.top\/wp-content\/uploads\/2021\/04\/Redis-RDB\u6587\u4ef6\u7ed3\u6784.png 736w, https:\/\/www.changxuan.top\/wp-content\/uploads\/2021\/04\/Redis-RDB\u6587\u4ef6\u7ed3\u6784-300x203.png 300w\" sizes=\"auto, (max-width: 736px) 100vw, 736px\" \/><figcaption>RDB \u6587\u4ef6\u7ed3\u6784\u793a\u610f\u56fe<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u5728\u4e0a\u56fe\u4e2d\uff0c\u5927\u5199\u5b57\u6bcd\u7684\u5355\u8bcd\u8868\u793a\u7684\u5e38\u91cf\uff0c\u5c0f\u5199\u5b57\u6bcd\u5355\u8bcd\u5219\u662f\u53d8\u91cf\u548c\u6570\u636e\u3002RDB \u6587\u4ef6\u5f00\u5934\u7684\u201cREDIS\u201d\u662f\u6211\u4eec\u4e60\u60ef\u79f0\u4e3a\u7684\u9b54\u6570\uff0c\u7c7b\u4f3c\u4e8e class \u6587\u4ef6\u7684 COFFEE\uff0c\u7528\u6765\u8bc6\u522b\u6587\u4ef6\u7c7b\u578b\uff1b\u7d27\u63a5\u7740\u957f\u5ea6\u4e3a\u56db\u4e2a\u5b57\u8282\u7684 db_version \u8bb0\u5f55\u7684\u662f RDB \u6587\u4ef6\u7684\u7248\u672c\u53f7\uff1bdatabase \u8868\u793a\u7684\u662f\u6240\u5b58\u50a8\u7684\u6570\u636e\uff1bEOF \u5219\u8868\u660e\u6570\u636e\u5185\u5bb9\u7ed3\u675f\u4e86\uff1bcheck_sum \u7684\u503c\u662f\u6574\u4e2a\u6587\u4ef6\u7684\u6821\u9a8c\u548c\uff0c\u7528\u6765\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u635f\u574f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">AOF<\/h2>\n\n\n\n<p>\u5176\u5b9e\u6301\u4e45\u5316\u6570\u636e\u9664\u4e86 RDB \u8fd9\u79cd\u65b9\u5f0f\uff0c\u80af\u5b9a\u4f1a\u6709\u540c\u5b66\u80fd\u60f3\u5230\u53e6\u4e00\u79cd\u65b9\u5f0f\uff0c\u5c31\u662f<strong>\u628a\u670d\u52a1\u7aef\u6267\u884c\u7684\u6240\u6709\u5ba2\u6237\u7aef\u8bf7\u6c42\u589e\u52a0\u3001\u4fee\u6539\u548c\u5220\u9664\u7b49\u4f1a\u6539\u53d8\u6570\u636e\u7684\u547d\u4ee4\u5168\u90fd\u5b58\u50a8\u8d77\u6765<\/strong>\u3002\u901a\u8fc7\u5b58\u50a8\u8fd9\u4e9b\u547d\u4ee4\u6570\u636e\uff0c\u5728\u9047\u5230\u673a\u5668\u5b95\u673a\u548c\u670d\u52a1\u8fdb\u7a0b\u5f02\u5e38\u4e2d\u65ad\u7684\u60c5\u51b5\u4e0b\u91cd\u542f\u670d\u52a1\u65f6\u53ea\u8981\u6267\u884c\u4e00\u904d\u8fd9\u4e9b\u6301\u4e45\u5316\u7684\u547d\u4ee4\u5373\u53ef\u6062\u590d\u4e4b\u524d\u7684\u6570\u636e\u4e86\u3002\uff08\u4e5f\u662f\u4e00\u4e2a\u76f8\u5f53\u597d\u7684\u529e\u6cd5\u5440\uff01\uff09<\/p>\n\n\n\n<p>\u539f\u7406\u5c31\u662f\u5982\u6b64\uff0c\u90a3\u4e48\u95ee\u9898\u6765\u4e86\uff0c\u5047\u5982\u540c\u6837\u8ba9\u4f60\u6765\u5b9e\u73b0\u8fd9\u4e2a\u8fc7\u7a0b\uff0c\u4f60\u4f1a\u8003\u8651\u5230\u54ea\u4e9b\u95ee\u9898\u5462\uff1f<\/p>\n\n\n\n<p>\u4e00\u662f\u6027\u80fd\u95ee\u9898\uff0c\u6267\u884c\u5b8c\u547d\u4ee4\u4e4b\u540e\u662f\u5426\u76f4\u63a5\u5c06\u6b64\u547d\u4ee4\u6301\u4e45\u5316\u5230\u78c1\u76d8\u4e0a\u8fd8\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u63a7\u5236\u6587\u4ef6\u540c\u6b65\uff1f\u5728\u8fd9\u4e2a\u95ee\u9898\u4e0a\u5982\u4f55\u505a\u53d6\u820d\uff1f\u4e8c\u662f\u6587\u4ef6\u5927\u5c0f\u95ee\u9898\uff0c\u968f\u7740 Redis \u670d\u52a1\u8fd0\u884c\u8d8a\u6765\u8d8a\u4e45\uff0c\u6570\u636e\u6587\u4ef6\u52bf\u5fc5\u4f1a\u8d8a\u6765\u8d8a\u5927\uff1f\u5e94\u8be5\u4f7f\u7528\u4ec0\u4e48\u529e\u6cd5\u89e3\u51b3\uff1f&#8230; &#8230;<\/p>\n\n\n\n<p>\u6211\u4eec\u6765\u770b\u4e0b Redis \u7684 AOF \u7684\u8fc7\u7a0b\u5427\uff01<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6301\u4e45\u5316\u8fc7\u7a0b<\/h3>\n\n\n\n<p>\u9996\u5148\uff0c\u901a\u8fc7\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u589e\u52a0\u4e00\u884c\u914d\u7f6e<code> appendonly yes <\/code>\u6765\u5f00\u542f AOF \u6301\u4e45\u5316\u3002<\/p>\n\n\n\n<p> \u50cf RDB \u673a\u5236\u6240\u4f9d\u8d56<code> redisServer<\/code> \u7ed3\u6784\u4f53\u4e2d\u7684 <code>saveparams\u3001dirty\u3001lastsave<\/code> \u53c2\u6570\u4e00\u6837\uff0cAOF \u7684\u5b9e\u73b0\u4f9d\u8d56 <code>redisServer <\/code>\u7ed3\u6784\u4f53\u4e2d\u7684 <code>aof_buf <\/code>\u53c2\u6570\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">struct redisServer{\n    \/\/ ... ...\n    \n    \/\/ AOF \u7f13\u51b2\u533a\n    sds aof_buf;\n\n   \/\/ ... ...\n}<\/pre>\n\n\n\n<p>aof_buf \u53c2\u6570\u7528\u6765\u4ee5\u534f\u8bae\u683c\u5f0f\u7f13\u5b58\u4f1a\u5bf9\u6570\u636e\u8fdb\u884c\u53d8\u66f4\u7684\u547d\u4ee4\u3002<\/p>\n\n\n\n<p>\u5728 Redis \u670d\u52a1\u5668\u6267\u884c\u5b8c\u547d\u4ee4\uff0c\u5e76\u5c06\u547d\u4ee4\u4ee5\u534f\u8bae\u7684\u683c\u5f0f\u8ffd\u52a0\u5230 <code>aof_buf <\/code>\u7f13\u51b2\u533a\u4e4b\u540e\uff0c\u5728\u5f53\u524d\u8fd9\u4e2a\u4e8b\u4ef6\u5faa\u73af\u7ed3\u675f\u4e4b\u524d\uff0cRedis \u8fd8\u4f1a\u8c03\u7528\u4e00\u4e2a\u51fd\u6570 <code>flushAppendOnlyFile<\/code>\uff0c\u8fd9\u4e2a\u51fd\u6570\u4f1a\u6839\u636e\u914d\u7f6e\u6587\u4ef6\u4e2d <code>appendfsync <\/code>\u7684\u503c\u6765\u51b3\u5b9a\u63a5\u4e0b\u6765\u7684\u6301\u4e45\u5316\u884c\u4e3a\u3002<code>appendfsync <\/code>\u6709\u4e09\u4e2a\u53ef\u9009\u503c\uff0c\u5206\u522b\u662f <code>always\u3001everysec\u3001no<\/code>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>always: \u5c06 aof_buf \u7f13\u51b2\u533a\u4e2d\u7684\u5185\u5bb9\u5199\u5165\u5e76\u540c\u6b65\u5230 AOF \u6587\u4ef6\u3002\uff08\u6027\u80fd\u6700\u4f4e\uff0c\u5b89\u5168\u6700\u9ad8\uff09<\/li><li>everysec: \u5c06 aof_buf \u7f13\u51b2\u533a\u4e2d\u7684\u5185\u5bb9\u5199\u5165\u5230 AOF \u6587\u4ef6\uff0c\u5982\u679c\u4e0a\u6b21\u540c\u6b65 AOF \u6587\u4ef6\u7684\u65f6\u95f4\u8ddd\u79bb\u73b0\u5728\u8d85\u8fc7\u4e00\u79d2\u949f\uff0c\u90a3\u4e48\u518d\u6b21\u5bf9 AOF \u6587\u4ef6\u540c\u6b65\uff0c\u5e76\u4e14\u8fd9\u4e2a\u540c\u6b65\u662f\u7531\u4e00\u4e2a\u7ebf\u7a0b\u4e13\u95e8\u8d1f\u8d23\u7684\u3002\uff08\u540c\u65f6\u517c\u987e\u6027\u80fd\u4e0e\u5b89\u5168\uff0c\u63a8\u8350\uff09<\/li><li>no: \u5c06 aof_buf \u7f13\u51b2\u533a\u4e2d\u7684\u5185\u5bb9\u5199\u5165\u5230 AOF \u6587\u4ef6\uff0c\u4f46\u5e76\u4e0d\u8d1f\u8d23\u5bf9 AOF \u6587\u4ef6\u7684\u540c\u6b65\uff0c\u628a\u540c\u6b65\u7684\u63a7\u5236\u6743\u4ea4\u7531\u64cd\u4f5c\u7cfb\u7edf\u63a7\u5236\u3002\uff08\u6027\u80fd\u6700\u9ad8\uff0c\u5b89\u5168\u6700\u4f4e\uff09<\/li><\/ul>\n\n\n\n<p>\u5728 MySQL \u6301\u4e45\u5316 binlog \u65e5\u5fd7\u6570\u636e\u65f6\uff0c\u4e5f\u9762\u4e34\u4e86\u540c\u6837\u7684\u95ee\u9898\uff0c\u5373\u662f\u5199\u5165\u540e\u7acb\u5373\u540c\u6b65\u8fd8\u662f\u8fc7\u6bb5\u65f6\u95f4\u518d\u540c\u6b65\u3002MySQL\u63d0\u4f9b\u4e86\u4e00\u4e2a\u53c2\u6570 sync_binlog \u6765\u63a7\u5236\uff0c\u5f53\u6b64\u53c2\u6570\u7684\u503c\u4e3a 0 \u65f6\u8868\u793a\u6bcf\u6b21\u63d0\u4ea4\u4e8b\u52a1\u90fd\u53ea\u8d1f\u8d23\u5199\u5165 binlog \uff0c\u4ec0\u4e48\u65f6\u5019\u540c\u6b65\u5230\u78c1\u76d8\u7531\u64cd\u4f5c\u7cfb\u7edf\u51b3\u5b9a\uff1b\u5f53\u53c2\u6570\u503c\u4e3a 1 \u7684\u65f6\u8868\u793a\u6bcf\u6b21\u63d0\u4ea4\u4e8b\u52a1\u90fd\u4f1a\u6267\u884c fsync \u540c\u6b65\u64cd\u4f5c\uff0c\u8fd9\u4e5f\u662f\u6570\u636e\u5b89\u5168\u7ea7\u522b\u6700\u9ad8\u7684\u914d\u7f6e\u3002\u53e6\u5916\u4f60\u4e5f\u53ef\u4ee5\u914d\u7f6e\u4e3a N\uff08N>1\uff09,\u8868\u793a\u6bcf\u6b21\u63d0\u4ea4\u4e8b\u52a1\u90fd wirte \u4f46\u662f\u7d2f\u79ef N \u4e2a\u4e8b\u52a1\u540e\u624d\u6267\u884c fsync \u540c\u6b65\u64cd\u4f5c\u3002\u6bd4\u8f83\u5e38\u89c1\u7684\u914d\u7f6e\u662f\u5c06\u6b64\u53c2\u6570\u8bbe\u7f6e\u4e3a 100\u20141000 \u4e2d\u7684\u67d0\u4e2a\u503c\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0a\u5c31\u662f AOF \u6301\u4e45\u5316\u7684\u57fa\u672c\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6570\u636e\u8f7d\u5165<\/h3>\n\n\n\n<p>\u7531\u4e8e\u547d\u4ee4\u6570\u636e\u662f\u4ee5\u534f\u8bae\u683c\u5f0f\u5b58\u50a8\u81f3\u6587\u4ef6\u4e2d\u7684\uff0c\u6240\u4ee5\u5728\u542f\u52a8 Redis \u670d\u52a1\u65f6\u68c0\u6d4b\u5230 AOF \u6587\u4ef6\u7684\u5b58\u5728\u540e\u4f1a\u542f\u52a8\u8f7d\u5165\u7a0b\u5e8f\u3002\uff08\u5982\u679c RDB \u548c AOF \u6301\u4e45\u5316\u7684\u6587\u4ef6\u540c\u65f6\u5b58\u5728\u5219\u4f1a\u4f18\u5148\u8f7d\u5165 AOF \u6587\u4ef6\u6570\u636e\uff09<\/p>\n\n\n\n<p>\u542f\u52a8\u8f7d\u5165\u7a0b\u5e8f\u540e\uff0c\u5176\u8f7d\u5165\u8fc7\u7a0b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"529\" height=\"428\" src=\"https:\/\/www.changxuan.top\/wp-content\/uploads\/2021\/05\/image.png\" alt=\"\" class=\"wp-image-1448\" srcset=\"https:\/\/www.changxuan.top\/wp-content\/uploads\/2021\/05\/image.png 529w, https:\/\/www.changxuan.top\/wp-content\/uploads\/2021\/05\/image-300x243.png 300w\" sizes=\"auto, (max-width: 529px) 100vw, 529px\" \/><figcaption>AOF \u6587\u4ef6\u8f7d\u5165\u8fc7\u7a0b<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">AOF \u91cd\u5199<\/h3>\n\n\n\n<p>\u5728\u524d\u9762\uff0c\u6211\u4eec\u63d0\u5230 AOF \u7684\u8fd9\u79cd\u673a\u5236\u4f1a\u9020\u6210 AOF \u6570\u636e\u6587\u4ef6\u8d8a\u6765\u8d8a\u5927\uff0c\u5e76\u4e14\u53ef\u80fd\u4f1a\u5b58\u5728\u8bb8\u591a\u65e0\u610f\u4e49\u7684\u547d\u4ee4\u3002\u4f8b\u5982\uff0c\u5148\u6267\u884c\u4e86\u4e00\u4e2a\u547d\u4ee4 <code>set chang xuan <\/code>\uff0c\u968f\u540e\u53c8\u6267\u884c\u4e86\u547d\u4ee4 <code>del chang <\/code>\u3002\u5176\u5b9e\u8fd9\u4e24\u6761\u8bed\u53e5\u90fd\u4f1a\u88ab\u6301\u4e45\u5316\u5230 AOF \u6587\u4ef6\u4e2d\uff0c\u4f46\u5b9e\u9645\u4e0a\u9664\u4e86\u80fd\u8bc1\u660e\u66fe\u7ecf\u6267\u884c\u8fc7\u8fd9\u4e24\u6761\u547d\u4ee4\u4e4b\u5916\u5bf9\u4e8e\u6211\u4eec\u8981\u6301\u4e45\u5316\u6570\u636e\u7684\u76ee\u7684\u800c\u8a00\u5e76\u6ca1\u6709\u4ec0\u4e48\u4f5c\u7528\u3002<\/p>\n\n\n\n<p>\u5bf9\u6b64\uff0cRedis \u63d0\u4f9b\u4e86 AOF \u91cd\u5199\u7684\u673a\u5236\u3002<\/p>\n\n\n\n<p>Redis \u7684 AOF \u91cd\u5199\u5176\u5b9e\u662f\u6839\u636e\u5f53\u524d\u5b58\u50a8\u7684\u6570\u636e\uff0c\u751f\u6210\u547d\u4ee4\u7684\u8fc7\u7a0b\u3002\u5e76\u4e14\u4f1a\u91c7\u7528\u4e00\u4e9b\u7b56\u7565\u5c3d\u91cf\u51cf\u5c0f AOF \u6587\u4ef6\u7684\u5927\u5c0f\uff0c\u4f8b\u5982\u5bf9\u4e8e List \u4e2d\u7684\u6570\u636e\u4f1a\u5c3d\u91cf\u4f7f\u7528\u8f83\u5c11\u7684\u547d\u4ee4\u64cd\u4f5c\u8f83\u591a\u7684\u6570\u636e\u3002\u5f53\u7136\uff0c\u5982\u679c\u5728\u5f53\u524d\u8fdb\u7a0b\u4e2d\u8fdb\u884c\u91cd\u5199\u5904\u7406\u5e76\u4e14\u6570\u636e\u91cf\u7279\u522b\u5927\u7684\u60c5\u51b5\u4e0b\u80af\u5b9a\u4f1a\u963b\u585e\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\uff0c\u6240\u4ee5\u548c RDB \u4e00\u6837\uff0cRedis \u63d0\u4f9b\u4e86 AOF \u540e\u53f0\u91cd\u5199\u7684\u673a\u5236\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u540e\u53f0\u91cd\u5199\uff08BGREWRITEAOF\uff09<\/h4>\n\n\n\n<p>AOF \u901a\u8fc7 fork \u5b50\u8fdb\u7a0b\u7684\u65b9\u5f0f\u8fdb\u884c\u540e\u53f0\u91cd\u5199\u6709\u4e24\u4e2a\u4f18\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u91cd\u5199\u671f\u95f4\u670d\u52a1\u5668\u8fdb\u7a0b\u53ef\u4ee5\u7ee7\u7eed\u5904\u7406\u8bf7\u6c42\u3002<\/li><li>\u5b50\u8fdb\u7a0b\u5e26\u6709\u670d\u52a1\u5668\u8fdb\u7a0b\u7684\u6570\u636e\u526f\u672c\uff0c\u80fd\u5145\u5206\u5229\u7528\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7684\u5199\u65f6\u590d\u5236\u673a\u5236\u4ece\u800c\u63d0\u5347\u6548\u7387\uff0c\u8fd8\u53ef\u4ee5\u5728\u907f\u514d\u4f7f\u7528\u9501\u7684\u60c5\u51b5\u4e0b\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/li><\/ol>\n\n\n\n<p>\u5929\u4e0b\u6ca1\u6709\u514d\u8d39\u7684\u5348\u9910\uff0c\u8fd9\u79cd\u65b9\u5f0f\u8fd8\u5e26\u6765\u4e00\u4e2a\u95ee\u9898\u3002\u5c31\u662f\u5728\u4f7f\u7528\u5b50\u8fdb\u7a0b\u91cd\u5199\u671f\u95f4\uff0c\u5982\u679c\u7236\u8fdb\u7a0b\u8fd8\u5728\u5904\u7406\u7740\u5ba2\u6237\u7aef\u8bf7\u6c42\uff0c\u5982\u4f55\u4fdd\u8bc1\u91cd\u5199\u540e AOF \u6587\u4ef6\u6570\u636e\u7684\u4e00\u81f4\u6027\u5462\uff1f<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u8fd9\u4e2a\u95ee\u9898\uff0cRedis \u8bbe\u7f6e\u4e86\u4e00\u4e2a AOF \u91cd\u5199\u7f13\u51b2\u533a\u3002\u5728\u5b50\u8fdb\u7a0b\u88ab\u521b\u5efa\u540e\uff0cRedis \u670d\u52a1\u5668\u5c31\u4f1a\u542f\u7528\u8fd9\u4e2a\u91cd\u5199\u7f13\u51b2\u533a\u3002\u5728\u5c06\u547d\u4ee4\u4ee5\u534f\u8bae\u683c\u5f0f\u8ffd\u52a0\u5230 AOF \u7f13\u51b2\u533a\u4e4b\u540e\uff0c\u540c\u65f6\u4e5f\u4f1a\u8ffd\u52a0\u5230 AOF \u91cd\u5199\u7f13\u51b2\u533a\u3002<\/p>\n\n\n\n<p>\u5f53\u5b50\u8fdb\u7a0b\u5b8c\u6210\u91cd\u5199\u5de5\u4f5c\u540e\u4f1a\u5411\u7236\u8fdb\u7a0b\u53d1\u9001\u4e00\u4e2a\u4fe1\u53f7\u3002\u7236\u8fdb\u7a0b\u63a5\u6536\u5230\u4fe1\u540e\u4e4b\u540e\u4f1a\u8fdb\u884c\u8c03\u7528\u76f8\u5173\u51fd\u6570\uff0c\u8fdb\u884c\u4ee5\u4e0b\u5de5\u4f5c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u5c06 AOF \u91cd\u5199\u7f13\u51b2\u533a\u4e2d\u7684\u5185\u5bb9\u5199\u5165\u5230\u65b0\u7684 AOF \u6587\u4ef6\u4e2d\u3002<\/li><li>\u5bf9\u65b0\u7684 AOF \u6587\u4ef6\u8fdb\u884c\u6539\u540d\uff0c\u539f\u5b50\u5730\u8986\u76d6\u73b0\u6709\u7684 AOF \u6587\u4ef6\uff0c\u5b8c\u6210\u65b0\u65e7\u6587\u4ef6\u7684\u66ff\u6362\u3002<\/li><\/ol>\n\n\n\n<p>\u8fd9\u65f6\uff0c\u5c31\u5b8c\u6210\u4e86\u4e00\u6b21 AOF \u540e\u53f0\u91cd\u5199\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p>\u901a\u8fc7\u524d\u6587\u5185\u5bb9\uff0c\u6211\u4eec\u53ef\u4ee5\u5927\u81f4\u6e05\u695a Redis \u6240\u63d0\u4f9b\u7684 RDB \u548c AOF \u4e24\u79cd\u6301\u4e45\u5316\u673a\u5236\u7684\u8fc7\u7a0b\u4ee5\u53ca\u57fa\u672c\u539f\u7406\u3002\u5b83\u4eec\u5404\u6709\u7279\u70b9\uff0c\u4e5f\u5404\u6709\u9002\u5408\u4f7f\u7528\u7684\u573a\u666f\u6240\u4ee5\u5e76\u4e0d\u80fd\u8bf4\u8c01\u4e00\u5b9a\u6bd4\u8c01\u597d\u3002\u901a\u8fc7\u642d\u914d\u4f7f\u7528\uff0c\u80fd\u591f\u786e\u4fdd\u7ebf\u4e0a\u73af\u5883\u6570\u636e\u7684\u5b89\u5168\u6027\u5c31\u662f\u6700\u597d\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis \u662f\u4e00\u4e2a\u975e\u5173\u7cfb\u578b\u7684\u5185\u5b58\u6570\u636e\u5e93\uff0c\u4f7f\u7528\u5185\u5b58\u5b58\u50a8\u6570\u636e\u662f\u5b83\u80fd\u591f\u8fdb\u884c\u5feb\u901f\u5b58\u53d6\u6570\u636e\u7684\u539f\u56e0\u4e4b\u4e00\u3002 \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5e38 &hellip; <a href=\"https:\/\/www.changxuan.top\/?p=1386\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">Redis \u7684\u6301\u4e45\u5316<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[88],"class_list":["post-1386","post","type-post","status-publish","format-standard","hentry","category-tech","tag-redis"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Redis \u7684\u6301\u4e45\u5316 - \u5e38\u8f69<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.changxuan.top\/?p=1386\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Redis \u7684\u6301\u4e45\u5316 - \u5e38\u8f69\" \/>\n<meta property=\"og:description\" content=\"Redis \u662f\u4e00\u4e2a\u975e\u5173\u7cfb\u578b\u7684\u5185\u5b58\u6570\u636e\u5e93\uff0c\u4f7f\u7528\u5185\u5b58\u5b58\u50a8\u6570\u636e\u662f\u5b83\u80fd\u591f\u8fdb\u884c\u5feb\u901f\u5b58\u53d6\u6570\u636e\u7684\u539f\u56e0\u4e4b\u4e00\u3002 \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5e38 &hellip; \u7ee7\u7eed\u9605\u8bfbRedis \u7684\u6301\u4e45\u5316\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.changxuan.top\/?p=1386\" \/>\n<meta property=\"og:site_name\" content=\"\u5e38\u8f69\" \/>\n<meta property=\"article:published_time\" content=\"2021-05-09T08:22:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-05-14T05:25:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.changxuan.top\/wp-content\/uploads\/2021\/04\/Redis-RDB\u6587\u4ef6\u7ed3\u6784.png\" \/>\n<meta name=\"author\" content=\"\u5e38\u8f69\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta 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