{"id":201678,"date":"2025-05-10T11:01:27","date_gmt":"2025-05-10T03:01:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201678\/"},"modified":"2025-05-10T11:01:27","modified_gmt":"2025-05-10T03:01:27","slug":"%e5%a6%82%e4%bd%95%e6%8e%8c%e6%8f%a1redis%e6%8c%81%e4%b9%85%e5%8c%96rdb%e5%92%8caof%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201678\/","title":{"rendered":"\u5982\u4f55\u638c\u63e1Redis\u6301\u4e45\u5316RDB\u548cAOF\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u638c\u63e1Redis\u6301\u4e45\u5316RDB\u548cAOF\uff1f<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u6570\u636e\u5e93<\/span>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300a\u5982\u4f55\u638c\u63e1Redis\u6301\u4e45\u5316RDB\u548cAOF\uff1f\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n

<\/p>\n

\u4e00\u3001\u4e3a\u4ec0\u4e48\u9700\u8981\u6301\u4e45\u5316\uff1f<\/h3>\n

Redis\u5bf9\u6570\u636e\u7684\u64cd\u4f5c\u90fd\u662f\u57fa\u4e8e\u5185\u5b58\u7684\uff0c\u5f53\u9047\u5230\u4e86\u8fdb\u7a0b\u9000\u51fa\u3001\u670d\u52a1\u5668\u5b95\u673a\u7b49\u610f\u5916\u60c5\u51b5\uff0c\u5982\u679c\u6ca1\u6709\u6301\u4e45\u5316\u673a\u5236\uff0c\u90a3\u4e48Redis\u4e2d\u7684\u6570\u636e\u5c06\u4f1a\u4e22\u5931\u65e0\u6cd5\u6062\u590d\u3002\u6709\u4e86\u6301\u4e45\u5316\u673a\u5236\uff0cRedis\u5728\u4e0b\u6b21\u91cd\u542f\u65f6\u53ef\u4ee5\u5229\u7528\u4e4b\u524d\u6301\u4e45\u5316\u7684\u6587\u4ef6\u8fdb\u884c\u6570\u636e\u6062\u590d\u3002Redis\u652f\u6301\u7684\u4e24\u79cd\u6301\u4e45\u5316\u673a\u5236\uff1a<\/p>\n

RDB\uff1a\u628a\u5f53\u524d\u6570\u636e\u751f\u6210\u5feb\u7167\u4fdd\u5b58\u5728\u786c\u76d8\u4e0a\u3002
AOF\uff1a\u8bb0\u5f55\u6bcf\u6b21\u5bf9\u6570\u636e\u7684\u64cd\u4f5c\u5230\u786c\u76d8\u4e0a\u3002<\/strong><\/em><\/p>\n

\u4e8c\u3001RDB\u6301\u4e45\u5316<\/h3>\n

\u5728\u6307\u5b9a\u7684\u65f6\u95f4\u95f4\u9694\u5185\u5c06\u5185\u5b58\u4e2d\u7684\u6570\u636e\u96c6\u5feb\u7167\u5199\u5165\u78c1\u76d8\uff0c\u5b83\u6062\u590d\u65f6\u662f\u5c06\u5feb\u7167\u6587\u4ef6\u76f4\u63a5\u8bfb\u5230\u5185\u5b58\u91cc\u3002RDB\uff08Redis DataBase\uff09\u6301\u4e45\u5316\u662f\u628a\u5f53\u524dRedis\u4e2d\u5168\u90e8\u6570\u636e\u751f\u6210\u5feb\u7167\u4fdd\u5b58\u5728\u786c\u76d8\u4e0a\u3002RDB\u6301\u4e45\u5316\u53ef\u4ee5\u624b\u52a8\u89e6\u53d1\uff0c\u4e5f\u53ef\u4ee5\u81ea\u52a8\u89e6\u53d1\u3002<\/p>\n

1\u3001\u5907\u4efd\u662f\u5982\u4f55\u6267\u884c\u7684\uff1f<\/h4>\n

redis\u4f1a\u5355\u72ec\u521b\u5efa\uff08fork\uff09\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u6765\u8fdb\u884c\u6301\u4e45\u5316\uff0c\u4f1a\u5148\u5c06\u6570\u636e\u5199\u5165\u5230\u4e34\u65f6\u6587\u4ef6\u4e2d\uff0c\u5f85\u6301\u4e45\u5316\u8fc7\u7a0b\u90fd\u7ed3\u675f\u4e86\uff0c\u518d\u7528\u8fd9\u4e2a\u4e34\u65f6\u6587\u4ef6\u66ff\u6362\u4e0a\u6b21\u6301\u4e45\u5316\u597d\u4e86\u7684\u6587\u4ef6\u3002\u6574\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u4e3b\u8fdb\u7a0b\u662f\u4e0d\u8fdb\u884c\u4efb\u4f55IO\u64cd\u4f5c\u7684\uff0c\u8fd9\u5c31\u786e\u4fdd\u4e86\u6781\u9ad8\u7684\u6027\u80fd\u3002\u5982\u679c\u9700\u8981\u8fdb\u884c\u5927\u89c4\u6a21\u6570\u636e\u7684\u6062\u590d\uff0c\u4e14\u5bf9\u6570\u636e\u7684\u6062\u590d\u5b8c\u6574\u6027\u4e0d\u662f\u975e\u5e38\u654f\u611f,\u90a3\u4e48RDB\u65b9\u5f0f\u8981\u6bd4AOF\u65b9\u5f0f\u66f4\u52a0\u7684\u9ad8\u6548\u3002RDB\u7684\u7f3a\u70b9\u662f\u6700\u540e\u4e00\u6b21\u6301\u4e45\u5316\u7684\u6570\u636e\u53ef\u80fd\u4e22\u5931\u3002<\/p>\n

2\u3001RDB\u6301\u4e45\u5316\u6d41\u7a0b<\/h4>\n

<\/p>\n

3\u3001\u624b\u52a8\u89e6\u53d1<\/h4>\n

save<\/code>\u548c bgsave<\/code>\u547d\u4ee4\u90fd\u53ef\u4ee5\u624b\u52a8\u89e6\u53d1RDB\u6301\u4e45\u5316\u3002<\/strong><\/em><\/p>\n

    \n
  1. \n

    save<\/code><\/strong>
    \u6267\u884csave<\/code>\u547d\u4ee4\u4f1a\u624b\u52a8\u89e6\u53d1RDB\u6301\u4e45\u5316\uff0c\u4f46\u662fsave<\/code>\u547d\u4ee4\u4f1a\u963b\u585eRedis\u670d\u52a1\uff0c\u76f4\u5230RDB\u6301\u4e45\u5316\u5b8c\u6210\u3002\u5f53Redis\u670d\u52a1\u50a8\u5b58\u5927\u91cf\u6570\u636e\u65f6\uff0c\u4f1a\u9020\u6210\u8f83\u957f\u65f6\u95f4\u7684\u963b\u585e\uff0c\u4e0d\u5efa\u8bae\u4f7f\u7528\u3002<\/p>\n<\/li>\n

  2. \n

    bgsave<\/code><\/strong>
    \u6267\u884cbgsave<\/code>\u547d\u4ee4\u4e5f\u4f1a\u624b\u52a8\u89e6\u53d1RDB\u6301\u4e45\u5316\uff0c\u548csave<\/code>\u547d\u4ee4\u4e0d\u540c\u662f\uff1aRedis\u670d\u52a1\u4e00\u822c\u4e0d\u4f1a\u963b\u585e\u3002Redis\u8fdb\u7a0b\u4f1a\u6267\u884cfork\u64cd\u4f5c\u521b\u5efa\u5b50\u8fdb\u7a0b\uff0cRDB\u6301\u4e45\u5316\u7531\u5b50\u8fdb\u7a0b\u8d1f\u8d23\uff0c\u4e0d\u4f1a\u963b\u585eRedis\u670d\u52a1\u8fdb\u7a0b\u3002Redis\u670d\u52a1\u7684\u963b\u585e\u53ea\u53d1\u751f\u5728fork\u9636\u6bb5\uff0c\u4e00\u822c\u60c5\u51b5\u65f6\u95f4\u5f88\u77ed\u3002
    bgsave<\/code>\u547d\u4ee4\u7684\u5177\u4f53\u6d41\u7a0b\u5982\u4e0b\u56fe\uff1a<\/strong>

    1\u3001\u6267\u884cbgsave<\/code>\u547d\u4ee4\uff0cRedis\u8fdb\u7a0b\u5148\u5224\u65ad\u5f53\u524d\u662f\u5426\u5b58\u5728\u6b63\u5728\u6267\u884c\u7684RDB\u6216AOF\u5b50\u7ebf\u7a0b\uff0c\u5982\u679c\u5b58\u5728\u5c31\u662f\u76f4\u63a5\u7ed3\u675f\u3002
    2\u3001Redis\u8fdb\u7a0b\u6267\u884cfork\u64cd\u4f5c\u521b\u5efa\u5b50\u7ebf\u7a0b\uff0c\u5728fork\u64cd\u4f5c\u7684\u8fc7\u7a0b\u4e2dRedis\u8fdb\u7a0b\u4f1a\u88ab\u963b\u585e\u3002
    3\u3001Redis\u8fdb\u7a0bfork\u5b8c\u6210\u540e\uff0cbgsave<\/code>\u547d\u4ee4\u5c31\u7ed3\u675f\u4e86\uff0c\u81ea\u6b64Redis\u8fdb\u7a0b\u4e0d\u4f1a\u88ab\u963b\u585e\uff0c\u53ef\u4ee5\u54cd\u5e94\u5176\u4ed6\u547d\u4ee4\u3002
    4\u3001\u5b50\u8fdb\u7a0b\u6839\u636eRedis\u8fdb\u7a0b\u7684\u5185\u5b58\u751f\u6210\u5feb\u7167\u6587\u4ef6\uff0c\u5e76\u66ff\u6362\u539f\u6709\u7684RDB\u6587\u4ef6\u3002
    5\u3001\u540c\u65f6\u53d1\u9001\u4fe1\u53f7\u7ed9\u4e3b\u8fdb\u7a0b\uff0c\u901a\u77e5\u4e3b\u8fdb\u7a0brdb\u6301\u4e45\u5316\u5b8c\u6210\uff0c\u4e3b\u8fdb\u7a0b\u66f4\u65b0\u76f8\u5173\u7684\u7edf\u8ba1\u4fe1\u606f\uff08info Persitence\u4e0b\u7684rdb_*\u76f8\u5173\u9009\u9879\uff09\u3002<\/p>\n<\/li>\n<\/ol>\n

    4\u3001\u81ea\u52a8\u89e6\u53d1<\/h4>\n

    \u9664\u4e86\u6267\u884c\u4ee5\u4e0a\u547d\u4ee4\u624b\u52a8\u89e6\u53d1\u4ee5\u5916\uff0cRedis\u5185\u90e8\u53ef\u4ee5\u81ea\u52a8\u89e6\u53d1RDB\u6301\u4e45\u5316\u3002\u81ea\u52a8\u89e6\u53d1\u7684RDB\u6301\u4e45\u5316\u90fd\u662f\u91c7\u7528bgsave<\/code>\u7684\u65b9\u5f0f\uff0c\u51cf\u5c11Redis\u8fdb\u7a0b\u7684\u963b\u585e\u3002\u90a3\u4e48\uff0c\u5728\u4ec0\u4e48\u573a\u666f\u4e0b\u4f1a\u81ea\u52a8\u89e6\u53d1\u5462\uff1f<\/p>\n

      \n
    1. \n

      \u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u8bbe\u7f6e\u4e86save<\/code>\u7684\u76f8\u5173\u914d\u7f6e\uff0c\u5982sava m n<\/code>\uff0c\u5b83\u8868\u793a\u5728m\u79d2\u5185\u6570\u636e\u88ab\u4fee\u6539\u8fc7n\u6b21\u65f6\uff0c\u81ea\u52a8\u89e6\u53d1bgsave<\/code>\u64cd\u4f5c\u3002<\/p>\n<\/li>\n

    2. \n

      \u5f53\u4ece\u8282\u70b9\u505a\u5168\u91cf\u590d\u5236\u65f6\uff0c\u4e3b\u8282\u70b9\u4f1a\u81ea\u52a8\u6267\u884cbgsave<\/code>\u64cd\u4f5c\uff0c\u5e76\u4e14\u628a\u751f\u6210\u7684RDB\u6587\u4ef6\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\u3002<\/p>\n<\/li>\n

    3. \n

      \u6267\u884cdebug reload<\/code>\u547d\u4ee4\u65f6\uff0c\u4e5f\u4f1a\u81ea\u52a8\u89e6\u53d1bgsave<\/code>\u64cd\u4f5c\u3002<\/p>\n<\/li>\n

    4. \n

      \u6267\u884cshutdown<\/code>\u547d\u4ee4\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u5f00\u542fAOF\u6301\u4e45\u5316\u4e5f\u4f1a\u81ea\u52a8\u89e6\u53d1bgsave<\/code>\u64cd\u4f5c\u3002<\/p>\n<\/li>\n<\/ol>\n

      5\u3001RDB\u4f18\u70b9<\/h4>\n

      RDB\u6587\u4ef6\u662f\u4e00\u4e2a\u7d27\u51d1\u7684\u4e8c\u8fdb\u5236\u538b\u7f29\u6587\u4ef6\uff0c\u662fRedis\u5728\u67d0\u4e2a\u65f6\u95f4\u70b9\u7684\u5168\u90e8\u6570\u636e\u5feb\u7167\u3002\u6240\u4ee5\u4f7f\u7528RDB\u6062\u590d\u6570\u636e\u7684\u901f\u5ea6\u8fdc\u8fdc\u6bd4AOF\u7684\u5feb\uff0c\u975e\u5e38\u9002\u5408\u5907\u4efd\u3001\u5168\u91cf\u590d\u5236\u3001\u707e\u96be\u6062\u590d\u7b49\u573a\u666f\u3002<\/p>\n

      6\u3001RDB\u7f3a\u70b9<\/h4>\n

      \u6bcf\u6b21\u8fdb\u884cbgsave<\/code>\u64cd\u4f5c\u90fd\u8981\u6267\u884cfork\u64cd\u4f5c\u521b\u5efa\u5b50\u7ecf\u5e38\uff0c\u5c5e\u4e8e\u91cd\u91cf\u7ea7\u64cd\u4f5c\uff0c\u9891\u7e41\u6267\u884c\u6210\u672c\u8fc7\u9ad8\uff0c\u6240\u4ee5\u65e0\u6cd5\u505a\u5230\u5b9e\u65f6\u6301\u4e45\u5316\uff0c\u6216\u8005\u79d2\u7ea7\u6301\u4e45\u5316\u3002<\/p>\n

      \u53e6\u5916\uff0c\u7531\u4e8eRedis\u7248\u672c\u7684\u4e0d\u65ad\u8fed\u4ee3\uff0c\u5b58\u5728\u4e0d\u540c\u683c\u5f0f\u7684RDB\u7248\u672c\uff0c\u6709\u53ef\u80fd\u51fa\u73b0\u4f4e\u7248\u672c\u7684RDB\u683c\u5f0f\u65e0\u6cd5\u517c\u5bb9\u9ad8\u7248\u672cRDB\u6587\u4ef6\u7684\u95ee\u9898\u3002<\/p>\n

      7\u3001dump.rdb\u4e2d\u914d\u7f6eRDB<\/h4>\n

      \u5feb\u7167\u5468\u671f<\/strong>\uff1a\u5185\u5b58\u5feb\u7167\u867d\u7136\u53ef\u4ee5\u901a\u8fc7\u6280\u672f\u4eba\u5458\u624b\u52a8\u6267\u884cSAVE<\/code>\u6216BGSAVE<\/code>\u547d\u4ee4\u6765\u8fdb\u884c\uff0c\u4f46\u751f\u4ea7\u73af\u5883\u4e0b\u591a\u6570\u60c5\u51b5\u90fd\u4f1a\u8bbe\u7f6e\u5176\u5468\u671f\u6027\u6267\u884c\u6761\u4ef6\u3002<\/p>\n

        \n
      • \n

        Redis\u4e2d\u9ed8\u8ba4\u7684\u5468\u671f\u65b0\u8bbe\u7f6e<\/strong><\/p>\n<\/li>\n<\/ul>\n

        # \u5468\u671f\u6027\u6267\u884c\u6761\u4ef6\u7684\u8bbe\u7f6e\u683c\u5f0f\u4e3a\nsave \n   \n     \n    \n      # \u9ed8\u8ba4\u7684\u8bbe\u7f6e\u4e3a\uff1a save 900 1 save 300 10 save 60 10000 # \u4ee5\u4e0b\u8bbe\u7f6e\u65b9\u5f0f\u4e3a\u5173\u95edRDB\u5feb\u7167\u529f\u80fd save \"\"\n    \n   <\/pre>\n
        \u4ee5\u4e0a\u4e09\u9879\u9ed8\u8ba4\u4fe1\u606f\u8bbe\u7f6e\u4ee3\u8868\u7684\u610f\u4e49\u662f\uff1a<\/p>\n
          \n
        • \n
          \u5982\u679c900\u79d2\u5185\u67091\u6761Key\u4fe1\u606f\u53d1\u751f\u53d8\u5316\uff0c\u5219\u8fdb\u884c\u5feb\u7167\uff1b<\/p>\n<\/li>\n
        • \n
          \u5982\u679c300\u79d2\u5185\u670910\u6761Key\u4fe1\u606f\u53d1\u751f\u53d8\u5316\uff0c\u5219\u8fdb\u884c\u5feb\u7167\uff1b<\/p>\n<\/li>\n
        • \n
          \u5982\u679c60\u79d2\u5185\u670910000\u6761Key\u4fe1\u606f\u53d1\u751f\u53d8\u5316\uff0c\u5219\u8fdb\u884c\u5feb\u7167\u3002\u8bfb\u8005\u53ef\u4ee5\u6309\u7167\u8fd9\u4e2a\u89c4\u5219\uff0c\u6839\u636e\u81ea\u5df1\u7684\u5b9e\u9645\u8bf7\u6c42\u538b\u529b\u8fdb\u884c\u8bbe\u7f6e\u8c03\u6574\u3002<\/p>\n<\/li>\n
        • \n
          \u5176\u5b83\u76f8\u5173\u914d\u7f6e<\/strong><\/p>\n<\/li>\n<\/ul>\n
          # \u6587\u4ef6\u540d\u79f0\ndbfilename dump.rdb\n\n# \u6587\u4ef6\u4fdd\u5b58\u8def\u5f84\ndir .\/\n\n# \u5982\u679c\u6301\u4e45\u5316\u51fa\u9519\uff0c\u4e3b\u8fdb\u7a0b\u662f\u5426\u505c\u6b62\u5199\u5165\nstop-writes-on-bgsave-error yes\n\n# \u662f\u5426\u538b\u7f29\nrdbcompression yes\n\n# \u5bfc\u5165\u65f6\u662f\u5426\u68c0\u67e5\nrdbchecksum yes<\/pre>\n
            \n
          • \n
            dbfilename\uff1aRDB\u6587\u4ef6\u5728\u78c1\u76d8\u4e0a\u7684\u540d\u79f0\u3002<\/p>\n<\/li>\n
          • \n
            dir\uff1aRDB\u6587\u4ef6\u7684\u5b58\u50a8\u8def\u5f84\u3002\u9ed8\u8ba4\u8bbe\u7f6e\u4e3a\u201c.\/\u201d\uff0c\u4e5f\u5c31\u662fRedis\u670d\u52a1\u7684\u4e3b\u76ee\u5f55\u3002<\/p>\n<\/li>\n
          • \n
            stop-writes-on-bgsave-error\uff1a\u4e0a\u6587\u63d0\u5230\u7684\u5728\u5feb\u7167\u8fdb\u884c\u8fc7\u7a0b\u4e2d\uff0c\u4e3b\u8fdb\u7a0b\u7167\u6837\u53ef\u4ee5\u63a5\u53d7\u5ba2\u6237\u7aef\u7684\u4efb\u4f55\u5199\u64cd\u4f5c\u7684\u7279\u6027\uff0c\u662f\u6307\u5728\u5feb\u7167\u64cd\u4f5c\u6b63\u5e38\u7684\u60c5\u51b5\u4e0b\u3002\u5982\u679c\u5feb\u7167\u64cd\u4f5c\u51fa\u73b0\u5f02\u5e38\uff08\u4f8b\u5982\u64cd\u4f5c\u7cfb\u7edf\u7528\u6237\u6743\u9650\u4e0d\u591f\u3001\u78c1\u76d8\u7a7a\u95f4\u5199\u6ee1\u7b49\u7b49\uff09\u65f6\uff0cRedis\u5c31\u4f1a\u7981\u6b62\u5199\u64cd\u4f5c\u3002\u8fd9\u4e2a\u7279\u6027\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4f7f\u8fd0\u7ef4\u4eba\u5458\u5728\u7b2c\u4e00\u65f6\u95f4\u5c31\u53d1\u73b0Redis\u7684\u8fd0\u884c\u9519\u8bef\uff0c\u5e76\u8fdb\u884c\u89e3\u51b3\u3002\u4e00\u4e9b\u7279\u5b9a\u7684\u573a\u666f\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u5bf9\u8fd9\u4e2a\u7279\u6027\u8fdb\u884c\u914d\u7f6e\uff0c\u8fd9\u65f6\u5c31\u53ef\u4ee5\u8c03\u6574\u8fd9\u4e2a\u53c2\u6570\u9879\u3002\u8be5\u53c2\u6570\u9879\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u503c\u4e3ayes\uff0c\u5982\u679c\u8981\u5173\u95ed\u8fd9\u4e2a\u7279\u6027\uff0c\u6307\u5b9a\u5373\u4f7f\u51fa\u73b0\u5feb\u7167\u9519\u8befRedis\u4e00\u6837\u5141\u8bb8\u5199\u64cd\u4f5c\uff0c\u5219\u53ef\u4ee5\u5c06\u8be5\u503c\u66f4\u6539\u4e3ano\u3002<\/p>\n<\/li>\n
          • \n
            rdbcompression\uff1a\u8be5\u5c5e\u6027\u5c06\u5728\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u6570\u636e\u88ab\u5feb\u7167\u5230\u78c1\u76d8\u6587\u4ef6\u65f6\uff0c\u542f\u7528LZF\u538b\u7f29\u7b97\u6cd5\u3002Redis\u5b98\u65b9\u7684\u5efa\u8bae\u662f\u8bf7\u4fdd\u6301\u8be5\u9009\u9879\u8bbe\u7f6e\u4e3ayes\uff0c\u56e0\u4e3a\u201cit\u2019s almost always a win\u201d\u3002<\/p>\n<\/li>\n
          • \n
            rdbchecksum\uff1a\u4eceRDB\u5feb\u7167\u529f\u80fd\u7684version 5 \u7248\u672c\u5f00\u59cb\uff0c\u4e00\u4e2a64\u4f4d\u7684CRC\u5197\u4f59\u6821\u9a8c\u7f16\u7801\u4f1a\u88ab\u653e\u7f6e\u5728RDB\u6587\u4ef6\u7684\u672b\u5c3e\uff0c\u4ee5\u4fbf\u5bf9\u6574\u4e2aRDB\u6587\u4ef6\u7684\u5b8c\u6574\u6027\u8fdb\u884c\u9a8c\u8bc1\u3002\u8fd9\u4e2a\u529f\u80fd\u5927\u6982\u4f1a\u591a\u635f\u593110%\u5de6\u53f3\u7684\u6027\u80fd\uff0c\u4f46\u83b7\u5f97\u4e86\u66f4\u9ad8\u7684\u6570\u636e\u53ef\u9760\u6027\u3002\u6240\u4ee5\u5982\u679c\u60a8\u7684Redis\u670d\u52a1\u9700\u8981\u8ffd\u6c42\u6781\u81f4\u7684\u6027\u80fd\uff0c\u5c31\u53ef\u4ee5\u5c06\u8fd9\u4e2a\u9009\u9879\u8bbe\u7f6e\u4e3ano\u3002<\/p>\n<\/li>\n<\/ul>\n
            8\u3001 RDB \u66f4\u6df1\u5165\u7406\u89e3<\/h4>\n
              \n
            • \n
              \u7531\u4e8e\u751f\u4ea7\u73af\u5883\u4e2d\u6211\u4eec\u4e3aRedis\u5f00\u8f9f\u7684\u5185\u5b58\u533a\u57df\u90fd\u6bd4\u8f83\u5927\uff08\u4f8b\u59826GB\uff09\uff0c\u90a3\u4e48\u5c06\u5185\u5b58\u4e2d\u7684\u6570\u636e\u540c\u6b65\u5230\u786c\u76d8\u7684\u8fc7\u7a0b\u53ef\u80fd\u5c31\u4f1a\u6301\u7eed\u6bd4\u8f83\u957f\u7684\u65f6\u95f4\uff0c\u800c\u5b9e\u9645\u60c5\u51b5\u662f\u8fd9\u6bb5\u65f6\u95f4Redis\u670d\u52a1\u4e00\u822c\u90fd\u4f1a\u6536\u5230\u6570\u636e\u5199\u64cd\u4f5c\u8bf7\u6c42\u3002\u90a3\u4e48\u5982\u4f55\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u5462\uff1f<\/strong>
               RDB\u4e2d\u7684\u6838\u5fc3\u601d\u8def\u662fCopy-on-Write\uff0c\u6765\u4fdd\u8bc1\u5728\u8fdb\u884c\u5feb\u7167\u64cd\u4f5c\u7684\u8fd9\u6bb5\u65f6\u95f4\uff0c\u9700\u8981\u538b\u7f29\u5199\u5165\u78c1\u76d8\u4e0a\u7684\u6570\u636e\u5728\u5185\u5b58\u4e2d\u4e0d\u4f1a\u53d1\u751f\u53d8\u5316\u3002\u5728\u6b63\u5e38\u7684\u5feb\u7167\u64cd\u4f5c\u4e2d\uff0c\u4e00\u65b9\u9762Redis\u4e3b\u8fdb\u7a0b\u4f1afork\u4e00\u4e2a\u65b0\u7684\u5feb\u7167\u8fdb\u7a0b\u4e13\u95e8\u6765\u505a\u8fd9\u4e2a\u4e8b\u60c5\uff0c\u8fd9\u6837\u4fdd\u8bc1\u4e86Redis\u670d\u52a1\u4e0d\u4f1a\u505c\u6b62\u5bf9\u5ba2\u6237\u7aef\u5305\u62ec\u5199\u8bf7\u6c42\u5728\u5185\u7684\u4efb\u4f55\u54cd\u5e94\u3002\u53e6\u4e00\u65b9\u9762\u8fd9\u6bb5\u65f6\u95f4\u53d1\u751f\u7684\u6570\u636e\u53d8\u5316\u4f1a\u4ee5\u526f\u672c\u7684\u65b9\u5f0f\u5b58\u653e\u5728\u53e6\u4e00\u4e2a\u65b0\u7684\u5185\u5b58\u533a\u57df\uff0c\u5f85\u5feb\u7167\u64cd\u4f5c\u7ed3\u675f\u540e\u624d\u4f1a\u540c\u6b65\u5230\u539f\u6765\u7684\u5185\u5b58\u533a\u57df\u3002
               \u4e3e\u4e2a\u4f8b\u5b50\uff1a\u5982\u679c\u4e3b\u7ebf\u7a0b\u5bf9\u8fd9\u4e9b\u6570\u636e\u4e5f\u90fd\u662f\u8bfb\u64cd\u4f5c\uff08\u4f8b\u5982\u56fe\u4e2d\u7684\u952e\u503c\u5bf9 A\uff09\uff0c\u90a3\u4e48\uff0c\u4e3b\u7ebf\u7a0b\u548c bgsave<\/code> \u5b50\u8fdb\u7a0b\u76f8\u4e92\u4e0d\u5f71\u54cd\u3002\u4f46\u662f\uff0c\u5982\u679c\u4e3b\u7ebf\u7a0b\u8981\u4fee\u6539\u4e00\u5757\u6570\u636e\uff08\u4f8b\u5982\u56fe\u4e2d\u7684\u952e\u503c\u5bf9 C\uff09\uff0c\u90a3\u4e48\uff0c\u8fd9\u5757\u6570\u636e\u5c31\u4f1a\u88ab\u590d\u5236\u4e00\u4efd\uff0c\u751f\u6210\u8be5\u6570\u636e\u7684\u526f\u672c\u3002\u7136\u540e\uff0cbgsave<\/code> \u5b50\u8fdb\u7a0b\u4f1a\u628a\u8fd9\u4e2a\u526f\u672c\u6570\u636e\u5199\u5165 RDB \u6587\u4ef6\uff0c\u800c\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u4e3b\u7ebf\u7a0b\u4ecd\u7136\u53ef\u4ee5\u76f4\u63a5\u4fee\u6539\u539f\u6765\u7684\u6570\u636e\u3002
              <\/p>\n<\/li>\n
            • \n
              \u5728\u8fdb\u884c\u5feb\u7167\u64cd\u4f5c\u7684\u8fd9\u6bb5\u65f6\u95f4\uff0c\u5982\u679c\u53d1\u751f\u670d\u52a1\u5d29\u6e83\u600e\u4e48\u529e\uff1f<\/strong>
               \u5f88\u7b80\u5355\uff0c\u5728\u6ca1\u6709\u5c06\u6570\u636e\u5168\u90e8\u5199\u5165\u5230\u78c1\u76d8\u524d\uff0c\u8fd9\u6b21\u5feb\u7167\u64cd\u4f5c\u90fd\u4e0d\u7b97\u6210\u529f\u3002\u5982\u679c\u51fa\u73b0\u4e86\u670d\u52a1\u5d29\u6e83\u7684\u60c5\u51b5\uff0c\u5c06\u4ee5\u4e0a\u4e00\u6b21\u5b8c\u6574\u7684RDB\u5feb\u7167\u6587\u4ef6\u4f5c\u4e3a\u6062\u590d\u5185\u5b58\u6570\u636e\u7684\u53c2\u8003\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5728\u5feb\u7167\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\u4e0d\u80fd\u5f71\u54cd\u4e0a\u4e00\u6b21\u7684\u5907\u4efd\u6570\u636e\u3002Redis\u670d\u52a1\u4f1a\u5728\u78c1\u76d8\u4e0a\u521b\u5efa\u4e00\u4e2a\u4e34\u65f6\u6587\u4ef6\u8fdb\u884c\u6570\u636e\u64cd\u4f5c\uff0c\u5f85\u64cd\u4f5c\u6210\u529f\u540e\u624d\u4f1a\u7528\u8fd9\u4e2a\u4e34\u65f6\u6587\u4ef6\u66ff\u6362\u6389\u4e0a\u4e00\u6b21\u7684\u5907\u4efd\u3002<\/p>\n<\/li>\n
            • \n
              \u53ef\u4ee5\u6bcf\u79d2\u505a\u4e00\u6b21\u5feb\u7167\u5417\uff1f<\/strong>
               \u5bf9\u4e8e\u5feb\u7167\u6765\u8bf4\uff0c\u6240\u8c13\u201c\u8fde\u62cd\u201d\u5c31\u662f\u6307\u8fde\u7eed\u5730\u505a\u5feb\u7167\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u5feb\u7167\u7684\u95f4\u9694\u65f6\u95f4\u53d8\u5f97\u5f88\u77ed\uff0c\u5373\u4f7f\u67d0\u4e00\u65f6\u523b\u53d1\u751f\u5b95\u673a\u4e86\uff0c\u56e0\u4e3a\u4e0a\u4e00\u65f6\u523b\u5feb\u7167\u521a\u6267\u884c\uff0c\u4e22\u5931\u7684\u6570\u636e\u4e5f\u4e0d\u4f1a\u592a\u591a\u3002\u4f46\u662f\uff0c\u8fd9\u5176\u4e2d\u7684\u5feb\u7167\u95f4\u9694\u65f6\u95f4\u5c31\u5f88\u5173\u952e\u4e86\u3002
               \u5982\u4e0b\u56fe\u6240\u793a\uff0c\u6211\u4eec\u5148\u5728 T0 \u65f6\u523b\u505a\u4e86\u4e00\u6b21\u5feb\u7167\uff0c\u7136\u540e\u53c8\u5728 T0+t \u65f6\u523b\u505a\u4e86\u4e00\u6b21\u5feb\u7167\uff0c\u5728\u8fd9\u671f\u95f4\uff0c\u6570\u636e\u5757 5 \u548c 9 \u88ab\u4fee\u6539\u4e86\u3002\u5982\u679c\u5728 t \u8fd9\u6bb5\u65f6\u95f4\u5185\uff0c\u673a\u5668\u5b95\u673a\u4e86\uff0c\u90a3\u4e48\uff0c\u53ea\u80fd\u6309\u7167 T0 \u65f6\u523b\u7684\u5feb\u7167\u8fdb\u884c\u6062\u590d\u3002\u6b64\u65f6\uff0c\u6570\u636e\u5757 5 \u548c 9 \u7684\u4fee\u6539\u503c\u56e0\u4e3a\u6ca1\u6709\u5feb\u7167\u8bb0\u5f55\uff0c\u5c31\u65e0\u6cd5\u6062\u590d\u4e86\u3002
              <\/p>\n<\/li>\n<\/ul>\n
              \u9488\u5bf9RDB\u4e0d\u9002\u5408\u5b9e\u65f6\u6301\u4e45\u5316\u7684\u95ee\u9898\uff0cRedis\u63d0\u4f9b\u4e86AOF\u6301\u4e45\u5316\u65b9\u5f0f\u6765\u89e3\u51b3<\/p>\n
              \u4e09\u3001AOF\u6301\u4e45\u5316<\/h3>\n
              AOF\uff08Append Only File\uff09\u6301\u4e45\u5316\u662f\u628a\u6bcf\u6b21\u5199\u547d\u4ee4\u8ffd\u52a0\u5199\u5165\u65e5\u5fd7\u4e2d\uff0c\u5f53\u9700\u8981\u6062\u590d\u6570\u636e\u65f6\u91cd\u65b0\u6267\u884cAOF\u6587\u4ef6\u4e2d\u7684\u547d\u4ee4\u5c31\u53ef\u4ee5\u4e86\u3002AOF\u89e3\u51b3\u4e86\u6570\u636e\u6301\u4e45\u5316\u7684\u5b9e\u65f6\u6027\uff0c\u4e5f\u662f\u76ee\u524d\u4e3b\u6d41\u7684Redis\u6301\u4e45\u5316\u65b9\u5f0f\u3002<\/p>\n
              \n
              Redis\u662f\u201c\u5199\u540e\u201d\u65e5\u5fd7\uff0cRedis\u5148\u6267\u884c\u547d\u4ee4\uff0c\u628a\u6570\u636e\u5199\u5165\u5185\u5b58\uff0c\u7136\u540e\u624d\u8bb0\u5f55\u65e5\u5fd7\u3002\u65e5\u5fd7\u91cc\u8bb0\u5f55\u7684\u662fRedis\u6536\u5230\u7684\u6bcf\u4e00\u6761\u547d\u4ee4\uff0c\u8fd9\u4e9b\u547d\u4ee4\u662f\u4ee5\u6587\u672c\u5f62\u5f0f\u4fdd\u5b58\u3002PS: \u5927\u591a\u6570\u7684\u6570\u636e\u5e93\u91c7\u7528\u7684\u662f\u5199\u524d\u65e5\u5fd7\uff08WAL\uff09\uff0c\u4f8b\u5982MySQL\uff0c\u901a\u8fc7\u5199\u524d\u65e5\u5fd7\u548c\u4e24\u9636\u6bb5\u63d0\u4ea4\uff0c\u5b9e\u73b0\u6570\u636e\u548c\u903b\u8f91\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<\/blockquote>\n
              \u800cAOF\u65e5\u5fd7\u91c7\u7528\u5199\u540e\u65e5\u5fd7\uff0c\u5373\u5148\u5199\u5185\u5b58\uff0c\u540e\u5199\u65e5\u5fd7<\/strong>\u3002

              \u4e3a\u4ec0\u4e48\u91c7\u7528\u5199\u540e\u65e5\u5fd7\uff1f<\/strong>
               Redis\u8981\u6c42\u9ad8\u6027\u80fd\uff0c\u91c7\u7528\u5199\u65e5\u5fd7\u6709\u4e24\u65b9\u9762\u597d\u5904\uff1a<\/p>\n
                \n
              • \n
                \u907f\u514d\u989d\u5916\u7684\u68c0\u67e5\u5f00\u9500<\/strong>\uff1aRedis \u5728\u5411 AOF \u91cc\u9762\u8bb0\u5f55\u65e5\u5fd7\u7684\u65f6\u5019\uff0c\u5e76\u4e0d\u4f1a\u5148\u53bb\u5bf9\u8fd9\u4e9b\u547d\u4ee4\u8fdb\u884c\u8bed\u6cd5\u68c0\u67e5\u3002\u6240\u4ee5\uff0c\u5982\u679c\u5148\u8bb0\u65e5\u5fd7\u518d\u6267\u884c\u547d\u4ee4\u7684\u8bdd\uff0c\u65e5\u5fd7\u4e2d\u5c31\u6709\u53ef\u80fd\u8bb0\u5f55\u4e86\u9519\u8bef\u7684\u547d\u4ee4\uff0cRedis \u5728\u4f7f\u7528\u65e5\u5fd7\u6062\u590d\u6570\u636e\u65f6\uff0c\u5c31\u53ef\u80fd\u4f1a\u51fa\u9519\u3002<\/p>\n<\/li>\n
              • \n
                \u4e0d\u4f1a\u963b\u585e\u5f53\u524d\u7684\u5199\u64cd\u4f5c<\/p>\n<\/li>\n<\/ul>\n
                \u4f46\u8fd9\u79cd\u65b9\u5f0f\u5b58\u5728\u6f5c\u5728\u98ce\u9669\uff1a<\/p>\n
                  \n
                • \n
                  \u5982\u679c\u547d\u4ee4\u6267\u884c\u5b8c\u6210\uff0c\u5199\u65e5\u5fd7\u4e4b\u524d\u5b95\u673a\u4e86\uff0c\u4f1a\u4e22\u5931\u6570\u636e\u3002<\/p>\n<\/li>\n
                • \n
                  \u4e3b\u7ebf\u7a0b\u5199\u78c1\u76d8\u538b\u529b\u5927\uff0c\u5bfc\u81f4\u5199\u76d8\u6162\uff0c\u963b\u585e\u540e\u7eed\u64cd\u4f5c\u3002<\/p>\n<\/li>\n<\/ul>\n
                  1\u3001\u5982\u4f55\u5b9e\u73b0AOF\uff1f<\/h4>\n
                  AOF\u65e5\u5fd7\u8bb0\u5f55Redis\u7684\u6bcf\u4e2a\u5199\u547d\u4ee4\uff0c\u6b65\u9aa4\u5206\u4e3a\uff1a\u547d\u4ee4\u8ffd\u52a0\uff08append\uff09\u3001\u6587\u4ef6\u5199\u5165\uff08write\uff09\u548c\u6587\u4ef6\u540c\u6b65\uff08sync\uff09\u3002<\/p>\n
                    \n
                  • \n
                    \u547d\u4ee4\u8ffd\u52a0<\/strong> \u5f53AOF\u6301\u4e45\u5316\u529f\u80fd\u6253\u5f00\u4e86\uff0c\u670d\u52a1\u5668\u5728\u6267\u884c\u5b8c\u4e00\u4e2a\u5199\u547d\u4ee4\u4e4b\u540e\uff0c\u4f1a\u4ee5\u534f\u8bae\u683c\u5f0f\u5c06\u88ab\u6267\u884c\u7684\u5199\u547d\u4ee4\u8ffd\u52a0\u5230\u670d\u52a1\u5668\u7684 aof_buf \u7f13\u51b2\u533a\u3002<\/p>\n<\/li>\n
                  • \n
                    \u6587\u4ef6\u5199\u5165\u548c\u540c\u6b65<\/strong> \u5173\u4e8e\u4f55\u65f6\u5c06 aof_buf \u7f13\u51b2\u533a\u7684\u5185\u5bb9\u5199\u5165AOF\u6587\u4ef6\u4e2d\uff0cRedis\u63d0\u4f9b\u4e86\u4e09\u79cd\u5199\u56de\u7b56\u7565\uff1a
                    <\/p>\n<\/li>\n
                  • \n
                    Always\uff0c\u540c\u6b65\u5199\u56de\uff1a\u6bcf\u4e2a\u5199\u547d\u4ee4\u6267\u884c\u5b8c\uff0c\u7acb\u9a6c\u540c\u6b65\u5730\u5c06\u65e5\u5fd7\u5199\u56de\u78c1\u76d8\uff1b<\/p>\n<\/li>\n
                  • \n
                    Everysec\uff0c\u6bcf\u79d2\u5199\u56de\uff1a\u6bcf\u4e2a\u5199\u547d\u4ee4\u6267\u884c\u5b8c\uff0c\u53ea\u662f\u5148\u628a\u65e5\u5fd7\u5199\u5230AOF\u6587\u4ef6\u7684\u5185\u5b58\u7f13\u51b2\u533a\uff0c\u6bcf\u9694\u4e00\u79d2\u628a\u7f13\u51b2\u533a\u4e2d\u7684\u5185\u5bb9\u5199\u5165\u78c1\u76d8\uff1b<\/p>\n<\/li>\n
                  • \n
                    No\uff0c\u64cd\u4f5c\u7cfb\u7edf\u63a7\u5236\u7684\u5199\u56de\uff1a\u6bcf\u4e2a\u5199\u547d\u4ee4\u6267\u884c\u5b8c\uff0c\u53ea\u662f\u5148\u628a\u65e5\u5fd7\u5199\u5230AOF\u6587\u4ef6\u7684\u5185\u5b58\u7f13\u51b2\u533a\uff0c\u7531\u64cd\u4f5c\u7cfb\u7edf\u51b3\u5b9a\u4f55\u65f6\u5c06\u7f13\u51b2\u533a\u5185\u5bb9\u5199\u56de\u78c1\u76d8\u3002<\/p>\n<\/li>\n<\/ul>\n
                    2\u3001redis.conf\u4e2d\u914d\u7f6eAOF<\/h4>\n
                    \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cRedis\u662f\u6ca1\u6709\u5f00\u542fAOF\u7684\uff0c\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6eredis.conf\u6587\u4ef6\u6765\u5f00\u542fAOF\u6301\u4e45\u5316\uff0c\u5173\u4e8eAOF\u7684\u914d\u7f6e\u5982\u4e0b\uff1a<\/p>\n
                    # appendonly\u53c2\u6570\u5f00\u542fAOF\u6301\u4e45\u5316\nappendonly no\n\n# AOF\u6301\u4e45\u5316\u7684\u6587\u4ef6\u540d\uff0c\u9ed8\u8ba4\u662fappendonly.aof\nappendfilename \"appendonly.aof\"\n\n# AOF\u6587\u4ef6\u7684\u4fdd\u5b58\u4f4d\u7f6e\u548cRDB\u6587\u4ef6\u7684\u4f4d\u7f6e\u76f8\u540c\uff0c\u90fd\u662f\u901a\u8fc7dir\u53c2\u6570\u8bbe\u7f6e\u7684\ndir .\/\n\n# \u540c\u6b65\u7b56\u7565\n# appendfsync always\nappendfsync everysec\n# appendfsync no\n\n# aof\u91cd\u5199\u671f\u95f4\u662f\u5426\u540c\u6b65\nno-appendfsync-on-rewrite no\n\n# \u91cd\u5199\u89e6\u53d1\u914d\u7f6e\nauto-aof-rewrite-percentage 100\nauto-aof-rewrite-min-size 64mb\n\n# \u52a0\u8f7daof\u51fa\u9519\u5982\u4f55\u5904\u7406\naof-load-truncated yes\n\n# \u6587\u4ef6\u91cd\u5199\u7b56\u7565\naof-rewrite-incremental-fsync yes<\/pre>\n
                    \u4ee5\u4e0b\u662fRedis\u4e2d\u5173\u4e8eAOF\u7684\u4e3b\u8981\u914d\u7f6e\u4fe1\u606f\uff1a<\/strong>
                    appendfsync<\/strong><\/em>\uff1a\u8fd9\u4e2a\u53c2\u6570\u9879\u662fAOF\u529f\u80fd\u6700\u91cd\u8981\u7684\u8bbe\u7f6e\u9879\u4e4b\u4e00\uff0c\u4e3b\u8981\u7528\u4e8e\u8bbe\u7f6e\u201c\u771f\u6b63\u6267\u884c\u201d\u64cd\u4f5c\u547d\u4ee4\u5411AOF\u6587\u4ef6\u4e2d\u540c\u6b65\u7684\u7b56\u7565\u3002<\/p>\n
                    \u4ec0\u4e48\u53eb\u201c\u771f\u6b63\u6267\u884c\u201d\u5462\uff1f\u8fd8\u8bb0\u5f97Linux\u64cd\u4f5c\u7cfb\u7edf\u5bf9\u78c1\u76d8\u8bbe\u5907\u7684\u64cd\u4f5c\u65b9\u5f0f\u5417\uff1f \u4e3a\u4e86\u4fdd\u8bc1\u64cd\u4f5c\u7cfb\u7edf\u4e2dI\/O\u961f\u5217\u7684\u64cd\u4f5c\u6548\u7387\uff0c\u5e94\u7528\u7a0b\u5e8f\u63d0\u4ea4\u7684I\/O\u64cd\u4f5c\u8bf7\u6c42\u4e00\u822c\u662f\u88ab\u653e\u7f6e\u5728linux Page Cache\u4e2d\u7684\uff0c\u7136\u540e\u518d\u7531Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u7b56\u7565\u81ea\u884c\u51b3\u5b9a\u6b63\u5728\u5199\u5230\u78c1\u76d8\u4e0a\u7684\u65f6\u673a\u3002\u800cRedis\u4e2d\u6709\u4e00\u4e2afsync()\u51fd\u6570\uff0c\u53ef\u4ee5\u5c06Page Cache\u4e2d\u5f85\u5199\u7684\u6570\u636e\u771f\u6b63\u5199\u5165\u5230\u7269\u7406\u8bbe\u5907\u4e0a\uff0c\u800c\u7f3a\u70b9\u662f\u9891\u7e41\u8c03\u7528\u8fd9\u4e2afsync()\u51fd\u6570\u5e72\u9884\u64cd\u4f5c\u7cfb\u7edf\u7684\u65e2\u5b9a\u7b56\u7565\uff0c\u53ef\u80fd\u5bfc\u81f4I\/O\u5361\u987f\u7684\u73b0\u8c61\u9891\u7e41 \u3002<\/p>\n
                    \u4e0e\u4e0a\u8282\u5bf9\u5e94\uff0cappendfsync\u53c2\u6570\u9879\u53ef\u4ee5\u8bbe\u7f6e\u4e09\u4e2a\u503c\uff0c\u5206\u522b\u662f\uff1aalways\u3001everysec\u3001no\uff0c\u9ed8\u8ba4\u7684\u503c\u4e3aeverysec\u3002<\/p>\n
                    no-appendfsync-on-rewrite<\/strong><\/em>\uff1aalways\u548ceverysec\u7684\u8bbe\u7f6e\u4f1a\u4f7f\u771f\u6b63\u7684I\/O\u64cd\u4f5c\u9ad8\u9891\u5ea6\u7684\u51fa\u73b0\uff0c\u751a\u81f3\u4f1a\u51fa\u73b0\u957f\u65f6\u95f4\u7684\u5361\u987f\u60c5\u51b5\uff0c\u8fd9\u4e2a\u95ee\u9898\u51fa\u73b0\u5728\u64cd\u4f5c\u7cfb\u7edf\u5c42\u9762\u4e0a\uff0c\u6240\u6709\u9760\u5de5\u4f5c\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e4b\u4e0a\u7684Redis\u662f\u6ca1\u6cd5\u89e3\u51b3\u7684\u3002\u4e3a\u4e86\u5c3d\u91cf\u7f13\u89e3\u8fd9\u4e2a\u60c5\u51b5\uff0cRedis\u63d0\u4f9b\u4e86\u8fd9\u4e2a\u8bbe\u7f6e\u9879\uff0c\u4fdd\u8bc1\u5728\u5b8c\u6210fsync\u51fd\u6570\u8c03\u7528\u65f6\uff0c\u4e0d\u4f1a\u5c06\u8fd9\u6bb5\u65f6\u95f4\u5185\u53d1\u751f\u7684\u547d\u4ee4\u64cd\u4f5c\u653e\u5165\u64cd\u4f5c\u7cfb\u7edf\u7684Page Cache\uff08\u8fd9\u6bb5\u65f6\u95f4Redis\u8fd8\u5728\u63a5\u53d7\u5ba2\u6237\u7aef\u7684\u5404\u79cd\u5199\u64cd\u4f5c\u547d\u4ee4\uff09\u3002<\/p>\n
                    auto-aof-rewrite-percentage<\/strong><\/em>\uff1a\u4e0a\u6587\u8bf4\u5230\u5728\u751f\u4ea7\u73af\u5883\u4e0b\uff0c\u6280\u672f\u4eba\u5458\u4e0d\u53ef\u80fd\u968f\u65f6\u968f\u5730\u4f7f\u7528\u201cBGREWRITEAOF<\/code>\u201d\u547d\u4ee4\u53bb\u91cd\u5199AOF\u6587\u4ef6\u3002\u6240\u4ee5\u66f4\u591a\u65f6\u5019\u6211\u4eec\u9700\u8981\u4f9d\u9760Redis\u4e2d\u5bf9AOF\u6587\u4ef6\u7684\u81ea\u52a8\u91cd\u5199\u7b56\u7565\u3002Redis\u4e2d\u5bf9\u89e6\u53d1\u81ea\u52a8\u91cd\u5199AOF\u6587\u4ef6\u7684\u64cd\u4f5c\u63d0\u4f9b\u4e86\u4e24\u4e2a\u8bbe\u7f6e\uff1a
                    auto-aof-rewrite-percentage<\/strong><\/em>\u8868\u793a\u5982\u679c\u5f53\u524dAOF\u6587\u4ef6\u7684\u5927\u5c0f\u8d85\u8fc7\u4e86\u4e0a\u6b21\u91cd\u5199\u540eAOF\u6587\u4ef6\u7684\u767e\u5206\u4e4b\u591a\u5c11\u540e\uff0c\u5c31\u518d\u6b21\u5f00\u59cb\u91cd\u5199AOF\u6587\u4ef6\u3002\u4f8b\u5982\u8be5\u53c2\u6570\u503c\u7684\u9ed8\u8ba4\u8bbe\u7f6e\u503c\u4e3a100\uff0c\u610f\u601d\u5c31\u662f\u5982\u679cAOF\u6587\u4ef6\u7684\u5927\u5c0f\u8d85\u8fc7\u4e0a\u6b21AOF\u6587\u4ef6\u91cd\u5199\u540e\u76841\u500d\uff0c\u5c31\u542f\u52a8\u91cd\u5199\u64cd\u4f5c\u3002
                    auto-aof-rewrite-min-size<\/strong><\/em>\uff1a\u8bbe\u7f6e\u9879\u8868\u793a\u542f\u52a8AOF\u6587\u4ef6\u91cd\u5199\u64cd\u4f5c\u7684AOF\u6587\u4ef6\u6700\u5c0f\u5927\u5c0f\u3002\u5982\u679cAOF\u6587\u4ef6\u5927\u5c0f\u4f4e\u4e8e\u8fd9\u4e2a\u503c\uff0c\u5219\u4e0d\u4f1a\u89e6\u53d1\u91cd\u5199\u64cd\u4f5c\u3002\u6ce8\u610f\uff0cauto-aof-rewrite-percentage\u548cauto-aof-rewrite-min-size\u53ea\u662f\u7528\u6765\u63a7\u5236Redis\u4e2d\u81ea\u52a8\u5bf9AOF\u6587\u4ef6\u8fdb\u884c\u91cd\u5199\u7684\u60c5\u51b5\uff0c\u5982\u679c\u662f\u6280\u672f\u4eba\u5458\u624b\u52a8\u8c03\u7528\u201cBGREWRITEAOF<\/code>\u201d\u547d\u4ee4\uff0c\u5219\u4e0d\u53d7\u8fd9\u4e24\u4e2a\u9650\u5236\u6761\u4ef6\u5de6\u53f3\u3002<\/p>\n
                    3\u3001\u6df1\u5165\u7406\u89e3AOF\u91cd\u5199<\/h4>\n
                    \n
                    AOF\u4f1a\u8bb0\u5f55\u6bcf\u4e2a\u5199\u547d\u4ee4\u5230AOF\u6587\u4ef6\uff0c\u968f\u7740\u65f6\u95f4\u8d8a\u6765\u8d8a\u957f\uff0cAOF\u6587\u4ef6\u4f1a\u53d8\u5f97\u8d8a\u6765\u8d8a\u5927\u3002\u5982\u679c\u4e0d\u52a0\u4ee5\u63a7\u5236\uff0c\u4f1a\u5bf9Redis\u670d\u52a1\u5668\uff0c\u751a\u81f3\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u9020\u6210\u5f71\u54cd\uff0c\u800c\u4e14AOF\u6587\u4ef6\u8d8a\u5927\uff0c\u6570\u636e\u6062\u590d\u4e5f\u8d8a\u6162\u3002\u4e3a\u4e86\u89e3\u51b3AOF\u6587\u4ef6\u4f53\u79ef\u81a8\u80c0\u7684\u95ee\u9898\uff0cRedis\u63d0\u4f9bAOF\u6587\u4ef6\u91cd\u5199\u673a\u5236\u6765\u5bf9AOF\u6587\u4ef6\u8fdb\u884c\u201c\u7626\u8eab\u201d\u3002<\/p>\n<\/blockquote>\n
                    \u56fe\u4f8b\u89e3\u91caAOF\u91cd\u5199<\/strong><\/em>

                    AOF\u91cd\u5199\u4f1a\u963b\u585e\u5417\uff1f<\/strong><\/em>
                     AOF\u91cd\u5199\u8fc7\u7a0b\u662f\u7531\u540e\u53f0\u8fdb\u7a0bbgrewriteaof\u6765\u5b8c\u6210\u7684\u3002\u4e3b\u7ebf\u7a0bfork\u51fa\u540e\u53f0\u7684bgrewriteaof\u5b50\u8fdb\u7a0b\uff0cfork\u4f1a\u628a\u4e3b\u7ebf\u7a0b\u7684\u5185\u5b58\u62f7\u8d1d\u4e00\u4efd\u7ed9bgrewriteaof\u5b50\u8fdb\u7a0b\uff0c\u8fd9\u91cc\u9762\u5c31\u5305\u542b\u4e86\u6570\u636e\u5e93\u7684\u6700\u65b0\u6570\u636e\u3002\u7136\u540e\uff0cbgrewriteaof\u5b50\u8fdb\u7a0b\u5c31\u53ef\u4ee5\u5728\u4e0d\u5f71\u54cd\u4e3b\u7ebf\u7a0b\u7684\u60c5\u51b5\u4e0b\uff0c\u9010\u4e00\u628a\u62f7\u8d1d\u7684\u6570\u636e\u5199\u6210\u64cd\u4f5c\uff0c\u8bb0\u5165\u91cd\u5199\u65e5\u5fd7\u3002\u6240\u4ee5aof\u5728\u91cd\u5199\u65f6\uff0c\u5728fork\u8fdb\u7a0b\u65f6\u662f\u4f1a\u963b\u585e\u4f4f\u4e3b\u7ebf\u7a0b\u7684\u3002<\/p>\n
                    AOF\u65e5\u5fd7\u4f55\u65f6\u4f1a\u91cd\u5199\uff1f<\/strong><\/em>
                     \u6709\u4e24\u4e2a\u914d\u7f6e\u9879\u63a7\u5236AOF\u91cd\u5199\u7684\u89e6\u53d1\uff1a
                    auto-aof-rewrite-min-size<\/strong>:\u8868\u793a\u8fd0\u884cAOF\u91cd\u5199\u65f6\u6587\u4ef6\u7684\u6700\u5c0f\u5927\u5c0f\uff0c\u9ed8\u8ba4\u4e3a64MB\u3002
                    auto-aof-rewrite-percentage<\/strong>:\u8fd9\u4e2a\u503c\u7684\u8ba1\u7b97\u65b9\u5f0f\u662f\uff0c\u5f53\u524daof\u6587\u4ef6\u5927\u5c0f\u548c\u4e0a\u4e00\u6b21\u91cd\u5199\u540eaof\u6587\u4ef6\u5927\u5c0f\u7684\u5dee\u503c\uff0c\u518d\u9664\u4ee5\u4e0a\u4e00\u6b21\u91cd\u5199\u540eaof\u6587\u4ef6\u5927\u5c0f\u3002\u4e5f\u5c31\u662f\u5f53\u524daof\u6587\u4ef6\u6bd4\u4e0a\u4e00\u6b21\u91cd\u5199\u540eaof\u6587\u4ef6\u7684\u589e\u91cf\u5927\u5c0f\uff0c\u548c\u4e0a\u4e00\u6b21\u91cd\u5199\u540eaof\u6587\u4ef6\u5927\u5c0f\u7684\u6bd4\u503c\u3002<\/p>\n
                    \u91cd\u5199\u65e5\u5fd7\u65f6\uff0c\u6709\u65b0\u6570\u636e\u5199\u5165\u548b\u6574\uff1f<\/strong><\/em>
                     \u91cd\u5199\u8fc7\u7a0b\u603b\u7ed3\u4e3a\uff1a\u201c\u4e00\u4e2a\u62f7\u8d1d\uff0c\u4e24\u5904\u65e5\u5fd7\u201d\u3002\u5728fork\u51fa\u5b50\u8fdb\u7a0b\u65f6\u7684\u62f7\u8d1d\uff0c\u4ee5\u53ca\u5728\u91cd\u5199\u65f6\uff0c\u5982\u679c\u6709\u65b0\u6570\u636e\u5199\u5165\uff0c\u4e3b\u7ebf\u7a0b\u5c31\u4f1a\u5c06\u547d\u4ee4\u8bb0\u5f55\u5230\u4e24\u4e2aaof\u65e5\u5fd7\u5185\u5b58\u7f13\u51b2\u533a\u4e2d\u3002\u5982\u679cAOF\u5199\u56de\u7b56\u7565\u914d\u7f6e\u7684\u662falways\uff0c\u5219\u76f4\u63a5\u5c06\u547d\u4ee4\u5199\u56de\u65e7\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u5e76\u4e14\u4fdd\u5b58\u4e00\u4efd\u547d\u4ee4\u81f3AOF\u91cd\u5199\u7f13\u51b2\u533a\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u5bf9\u65b0\u7684\u65e5\u5fd7\u6587\u4ef6\u662f\u4e0d\u5b58\u5728\u5f71\u54cd\u7684\u3002\uff08\u65e7\u7684\u65e5\u5fd7\u6587\u4ef6\uff1a\u4e3b\u7ebf\u7a0b\u4f7f\u7528\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u65b0\u7684\u65e5\u5fd7\u6587\u4ef6\uff1abgrewriteaof\u8fdb\u7a0b\u4f7f\u7528\u7684\u65e5\u5fd7\u6587\u4ef6\uff09<\/p>\n
                    \u800c\u5728bgrewriteaof\u5b50\u8fdb\u7a0b\u5b8c\u6210\u65e5\u5fd7\u6587\u4ef6\u7684\u91cd\u5199\u64cd\u4f5c\u540e\uff0c\u4f1a\u63d0\u793a\u4e3b\u7ebf\u7a0b\u5df2\u7ecf\u5b8c\u6210\u91cd\u5199\u64cd\u4f5c\uff0c\u4e3b\u7ebf\u7a0b\u4f1a\u5c06AOF\u91cd\u5199\u7f13\u51b2\u4e2d\u7684\u547d\u4ee4\u8ffd\u52a0\u5230\u65b0\u7684\u65e5\u5fd7\u6587\u4ef6\u540e\u9762\u3002\u8fd9\u65f6\u5019\u5728\u9ad8\u5e76\u53d1\u7684\u60c5\u51b5\u4e0b\uff0cAOF\u91cd\u5199\u7f13\u51b2\u533a\u79ef\u7d2f\u53ef\u80fd\u4f1a\u5f88\u5927\uff0c\u8fd9\u6837\u5c31\u4f1a\u9020\u6210\u963b\u585e\uff0cRedis\u540e\u6765\u901a\u8fc7Linux\u7ba1\u9053\u6280\u672f\u8ba9aof\u91cd\u5199\u671f\u95f4\u5c31\u80fd\u540c\u65f6\u8fdb\u884c\u56de\u653e\uff0c\u8fd9\u6837aof\u91cd\u5199\u7ed3\u675f\u540e\u53ea\u9700\u56de\u653e\u5c11\u91cf\u5269\u4f59\u7684\u6570\u636e\u5373\u53ef\u3002\u6700\u540e\u901a\u8fc7\u4fee\u6539\u6587\u4ef6\u540d\u7684\u65b9\u5f0f\uff0c\u4fdd\u8bc1\u6587\u4ef6\u5207\u6362\u7684\u539f\u5b50\u6027\u3002<\/p>\n
                    \u5728AOF\u91cd\u5199\u65e5\u5fd7\u671f\u95f4\u53d1\u751f\u5b95\u673a\u7684\u8bdd\uff0c\u56e0\u4e3a\u65e5\u5fd7\u6587\u4ef6\u8fd8\u6ca1\u5207\u6362\uff0c\u6240\u4ee5\u6062\u590d\u6570\u636e\u65f6\uff0c\u7528\u7684\u8fd8\u662f\u65e7\u7684\u65e5\u5fd7\u6587\u4ef6\u3002<\/p>\n
                    \u603b\u7ed3\u64cd\u4f5c\uff1a<\/strong><\/em><\/p>\n
                      \n
                    • \n
                      \u4e3b\u7ebf\u7a0bfork\u51fa\u5b50\u8fdb\u7a0b\u91cd\u5199aof\u65e5\u5fd7<\/p>\n<\/li>\n
                    • \n
                      \u5b50\u8fdb\u7a0b\u91cd\u5199\u65e5\u5fd7\u5b8c\u6210\u540e\uff0c\u4e3b\u7ebf\u7a0b\u8ffd\u52a0aof\u65e5\u5fd7\u7f13\u51b2<\/p>\n<\/li>\n
                    • \n
                      \u66ff\u6362\u65e5\u5fd7\u6587\u4ef6<\/p>\n<\/li>\n<\/ul>\n
                      \u6e29\u99a8\u63d0\u793a<\/strong><\/p>\n
                      \n
                      \u8fd9\u91cc\u7684\u8fdb\u7a0b\u548c\u7ebf\u7a0b\u7684\u6982\u5ff5\u6709\u70b9\u6df7\u4e71\u3002\u56e0\u4e3a\u540e\u53f0\u7684bgreweiteaof\u8fdb\u7a0b\u5c31\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u5728\u64cd\u4f5c\uff0c\u800c\u4e3b\u7ebf\u7a0b\u662fRedis\u7684\u64cd\u4f5c\u8fdb\u7a0b\uff0c\u4e5f\u662f\u5355\u72ec\u4e00\u4e2a\u7ebf\u7a0b\u3002\u8fd9\u91cc\u60f3\u8868\u8fbe\u7684\u662fRedis\u4e3b\u8fdb\u7a0b\u5728fork\u51fa\u4e00\u4e2a\u540e\u53f0\u8fdb\u7a0b\u4e4b\u540e\uff0c\u540e\u53f0\u8fdb\u7a0b\u7684\u64cd\u4f5c\u548c\u4e3b\u8fdb\u7a0b\u662f\u6ca1\u6709\u4efb\u4f55\u5173\u8054\u7684\uff0c\u4e5f\u4e0d\u4f1a\u963b\u585e\u4e3b\u7ebf\u7a0b<\/p>\n<\/blockquote>\n

                      \u4e3b\u7ebf\u7a0bfork\u51fa\u5b50\u8fdb\u7a0b\u662f\u5982\u4f55\u590d\u5236\u5185\u5b58\u6570\u636e\u7684\uff1f<\/strong>
                       fork\u91c7\u7528\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7684\u5199\u65f6\u590d\u5236\uff08copy on write\uff09\u673a\u5236\uff0c\u5c31\u662f\u4e3a\u4e86\u907f\u514d\u4e00\u6b21\u6027\u62f7\u8d1d\u5927\u91cf\u5185\u5b58\u6570\u636e\u7ed9\u5b50\u8fdb\u7a0b\u9020\u6210\u963b\u585e\u3002fork\u5b50\u8fdb\u7a0b\u65f6\uff0c\u5b50\u8fdb\u7a0b\u65f6\u4f1a\u62f7\u8d1d\u7236\u8fdb\u7a0b\u7684\u9875\u8868\uff0c\u5373\u865a\u5b9e\u6620\u5c04\u5173\u7cfb\uff08\u865a\u62df\u5185\u5b58\u548c\u7269\u7406\u5185\u5b58\u7684\u6620\u5c04\u7d22\u5f15\u8868\uff09\uff0c\u800c\u4e0d\u4f1a\u62f7\u8d1d\u7269\u7406\u5185\u5b58\u3002\u8fd9\u4e2a\u62f7\u8d1d\u4f1a\u6d88\u8017\u5927\u91cfcpu\u8d44\u6e90\uff0c\u5e76\u4e14\u62f7\u8d1d\u5b8c\u6210\u524d\u4f1a\u963b\u585e\u4e3b\u7ebf\u7a0b\uff0c\u963b\u585e\u65f6\u95f4\u53d6\u51b3\u4e8e\u5185\u5b58\u4e2d\u7684\u6570\u636e\u91cf\uff0c\u6570\u636e\u91cf\u8d8a\u5927\uff0c\u5219\u5185\u5b58\u9875\u8868\u8d8a\u5927\u3002\u62f7\u8d1d\u5b8c\u6210\u540e\uff0c\u7236\u5b50\u8fdb\u7a0b\u4f7f\u7528\u76f8\u540c\u7684\u5185\u5b58\u5730\u5740\u7a7a\u95f4\u3002<\/p>\n
                      \u4f46\u4e3b\u8fdb\u7a0b\u662f\u53ef\u4ee5\u6709\u6570\u636e\u5199\u5165\u7684\uff0c\u8fd9\u65f6\u5019\u5c31\u4f1a\u62f7\u8d1d\u7269\u7406\u5185\u5b58\u4e2d\u7684\u6570\u636e\u3002\u5982\u4e0b\u56fe\uff08\u8fdb\u7a0b1\u770b\u505a\u662f\u4e3b\u8fdb\u7a0b\uff0c\u8fdb\u7a0b2\u770b\u505a\u662f\u5b50\u8fdb\u7a0b\uff09\uff1a

                       \u5728\u4e3b\u8fdb\u7a0b\u6709\u6570\u636e\u5199\u5165\u65f6\uff0c\u800c\u8fd9\u4e2a\u6570\u636e\u521a\u597d\u5728\u9875c\u4e2d\uff0c\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u521b\u5efa\u8fd9\u4e2a\u9875\u9762\u7684\u526f\u672c\uff08\u9875c\u7684\u526f\u672c\uff09\uff0c\u5373\u62f7\u8d1d\u5f53\u524d\u9875\u7684\u7269\u7406\u6570\u636e\uff0c\u5c06\u5176\u6620\u5c04\u5230\u4e3b\u8fdb\u7a0b\u4e2d\uff0c\u800c\u5b50\u8fdb\u7a0b\u8fd8\u662f\u4f7f\u7528\u539f\u6765\u7684\u7684\u9875c\u3002<\/p>\n
                      \u5728\u91cd\u5199\u65e5\u5fd7\u6574\u4e2a\u8fc7\u7a0b\u65f6\uff0c\u4e3b\u7ebf\u7a0b\u6709\u54ea\u4e9b\u5730\u65b9\u4f1a\u88ab\u963b\u585e\uff1f<\/strong><\/p>\n
                        \n
                      • \n
                        fork\u5b50\u8fdb\u7a0b\u65f6\uff0c\u9700\u8981\u62f7\u8d1d\u865a\u62df\u9875\u8868\uff0c\u4f1a\u5bf9\u4e3b\u7ebf\u7a0b\u963b\u585e\u3002<\/p>\n<\/li>\n
                      • \n
                        \u4e3b\u8fdb\u7a0b\u6709bigkey\u5199\u5165\u65f6\uff0c\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u521b\u5efa\u9875\u9762\u7684\u526f\u672c\uff0c\u5e76\u62f7\u8d1d\u539f\u6709\u7684\u6570\u636e\uff0c\u4f1a\u5bf9\u4e3b\u7ebf\u7a0b\u963b\u585e\u3002<\/p>\n<\/li>\n
                      • \n
                        \u5b50\u8fdb\u7a0b\u91cd\u5199\u65e5\u5fd7\u5b8c\u6210\u540e\uff0c\u4e3b\u8fdb\u7a0b\u8ffd\u52a0aof\u91cd\u5199\u7f13\u51b2\u533a\u65f6\u53ef\u80fd\u4f1a\u5bf9\u4e3b\u7ebf\u7a0b\u963b\u585e\u3002<\/p>\n<\/li>\n<\/ul>\n
                        \u4e3a\u4ec0\u4e48AOF\u91cd\u5199\u4e0d\u590d\u7528\u539fAOF\u65e5\u5fd7\uff1f<\/strong><\/p>\n
                          \n
                        • \n
                          \u7236\u5b50\u8fdb\u7a0b\u5199\u540c\u4e00\u4e2a\u6587\u4ef6\u4f1a\u4ea7\u751f\u7ade\u4e89\u95ee\u9898\uff0c\u5f71\u54cd\u7236\u8fdb\u7a0b\u7684\u6027\u80fd\u3002<\/p>\n<\/li>\n
                        • \n
                          \u5982\u679cAOF\u91cd\u5199\u8fc7\u7a0b\u4e2d\u5931\u8d25\u4e86\uff0c\u76f8\u5f53\u4e8e\u6c61\u67d3\u4e86\u539f\u672c\u7684AOF\u6587\u4ef6\uff0c\u65e0\u6cd5\u505a\u6062\u590d\u6570\u636e\u4f7f\u7528\u3002<\/p>\n<\/li>\n<\/ul>\n
                          \u4e09\u3001RDB\u548cAOF\u6df7\u5408\u65b9\u5f0f\uff084.0\u7248\u672c)<\/h3>\n
                          \n
                          Redis 4.0 \u4e2d\u63d0\u51fa\u4e86\u4e00\u4e2a\u6df7\u5408\u4f7f\u7528 AOF \u65e5\u5fd7\u548c\u5185\u5b58\u5feb\u7167\u7684\u65b9\u6cd5\u3002\u7b80\u5355\u6765\u8bf4\uff0c\u5185\u5b58\u5feb\u7167\u4ee5\u4e00\u5b9a\u7684\u9891\u7387\u6267\u884c\uff0c\u5728\u4e24\u6b21\u5feb\u7167\u4e4b\u95f4\uff0c\u4f7f\u7528 AOF \u65e5\u5fd7\u8bb0\u5f55\u8fd9\u671f\u95f4\u7684\u6240\u6709\u547d\u4ee4\u64cd\u4f5c\u3002<\/p>\n<\/blockquote>\n
                          \u8fd9\u6837\u4e00\u6765\uff0c\u5feb\u7167\u4e0d\u7528\u5f88\u9891\u7e41\u5730\u6267\u884c\uff0c\u8fd9\u5c31\u907f\u514d\u4e86\u9891\u7e41 fork \u5bf9\u4e3b\u7ebf\u7a0b\u7684\u5f71\u54cd\u3002\u800c\u4e14\uff0cAOF \u65e5\u5fd7\u4e5f\u53ea\u7528\u8bb0\u5f55\u4e24\u6b21\u5feb\u7167\u95f4\u7684\u64cd\u4f5c\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e0d\u9700\u8981\u8bb0\u5f55\u6240\u6709\u64cd\u4f5c\u4e86\uff0c\u56e0\u6b64\uff0c\u5c31\u4e0d\u4f1a\u51fa\u73b0\u6587\u4ef6\u8fc7\u5927\u7684\u60c5\u51b5\u4e86\uff0c\u4e5f\u53ef\u4ee5\u907f\u514d\u91cd\u5199\u5f00\u9500\u3002<\/p>\n
                          \u5982\u4e0b\u56fe\u6240\u793a\uff0cT1 \u548c T2 \u65f6\u523b\u7684\u4fee\u6539\uff0c\u7528 AOF \u65e5\u5fd7\u8bb0\u5f55\uff0c\u7b49\u5230\u7b2c\u4e8c\u6b21\u505a\u5168\u91cf\u5feb\u7167\u65f6\uff0c\u5c31\u53ef\u4ee5\u6e05\u7a7a AOF \u65e5\u5fd7\uff0c\u56e0\u4e3a\u6b64\u65f6\u7684\u4fee\u6539\u90fd\u5df2\u7ecf\u8bb0\u5f55\u5230\u5feb\u7167\u4e2d\u4e86\uff0c\u6062\u590d\u65f6\u5c31\u4e0d\u518d\u7528\u65e5\u5fd7\u4e86\u3002

                           \u8fd9\u4e2a\u65b9\u6cd5\u65e2\u80fd\u4eab\u53d7\u5230 RDB \u6587\u4ef6\u5feb\u901f\u6062\u590d\u7684\u597d\u5904\uff0c\u53c8\u80fd\u4eab\u53d7\u5230 AOF \u53ea\u8bb0\u5f55\u64cd\u4f5c\u547d\u4ee4\u7684\u7b80\u5355\u4f18\u52bf, \u5b9e\u9645\u73af\u5883\u4e2d\u7528\u7684\u5f88\u591a\u3002<\/p>\n
                          \u56db\u3001\u4ece\u6301\u4e45\u5316\u4e2d\u6062\u590d\u6570\u636e<\/h3>\n
                          \n
                          \u6570\u636e\u7684\u5907\u4efd\u3001\u6301\u4e45\u5316\u505a\u5b8c\u4e86\uff0c\u6211\u4eec\u5982\u4f55\u4ece\u8fd9\u4e9b\u6301\u4e45\u5316\u6587\u4ef6\u4e2d\u6062\u590d\u6570\u636e\u5462\uff1f\u5982\u679c\u4e00\u53f0\u670d\u52a1\u5668\u4e0a\u6709\u65e2\u6709RDB\u6587\u4ef6\uff0c\u53c8\u6709AOF\u6587\u4ef6\uff0c\u8be5\u52a0\u8f7d\u8c01\u5462\uff1f<\/p>\n<\/blockquote>\n
                          \u5176\u5b9e\u60f3\u8981\u4ece\u8fd9\u4e9b\u6587\u4ef6\u4e2d\u6062\u590d\u6570\u636e\uff0c\u53ea\u9700\u8981\u91cd\u65b0\u542f\u52a8Redis\u5373\u53ef\u3002\u6211\u4eec\u8fd8\u662f\u901a\u8fc7\u56fe\u6765\u4e86\u89e3\u8fd9\u4e2a\u6d41\u7a0b\uff1a
                          <\/p>\n
                            \n
                          • \n
                            redis\u91cd\u542f\u65f6\u5224\u65ad\u662f\u5426\u5f00\u542faof\uff0c\u5982\u679c\u5f00\u542f\u4e86aof\uff0c\u90a3\u4e48\u5c31\u4f18\u5148\u52a0\u8f7daof\u6587\u4ef6\uff1b<\/p>\n<\/li>\n
                          • \n
                            \u5982\u679caof\u5b58\u5728\uff0c\u90a3\u4e48\u5c31\u53bb\u52a0\u8f7daof\u6587\u4ef6\uff0c\u52a0\u8f7d\u6210\u529f\u7684\u8bddredis\u91cd\u542f\u6210\u529f\uff0c\u5982\u679caof\u6587\u4ef6\u52a0\u8f7d\u5931\u8d25\uff0c\u90a3\u4e48\u4f1a\u6253\u5370\u65e5\u5fd7\u8868\u793a\u542f\u52a8\u5931\u8d25\uff0c\u6b64\u65f6\u53ef\u4ee5\u53bb\u4fee\u590daof\u6587\u4ef6\u540e\u91cd\u65b0\u542f\u52a8\uff1b<\/p>\n<\/li>\n
                          • \n
                            \u82e5aof\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u90a3\u4e48redis\u5c31\u4f1a\u8f6c\u800c\u53bb\u52a0\u8f7drdb\u6587\u4ef6\uff0c\u5982\u679crdb\u6587\u4ef6\u4e0d\u5b58\u5728\uff0credis\u76f4\u63a5\u542f\u52a8\u6210\u529f\uff1b<\/p>\n<\/li>\n
                          • \n
                            \u5982\u679crdb\u6587\u4ef6\u5b58\u5728\u5c31\u4f1a\u53bb\u52a0\u8f7drdb\u6587\u4ef6\u6062\u590d\u6570\u636e\uff0c\u5982\u52a0\u8f7d\u5931\u8d25\u5219\u6253\u5370\u65e5\u5fd7\u63d0\u793a\u542f\u52a8\u5931\u8d25\uff0c\u5982\u52a0\u8f7d\u6210\u529f\uff0c\u90a3\u4e48redis\u91cd\u542f\u6210\u529f\uff0c\u4e14\u4f7f\u7528rdb\u6587\u4ef6\u6062\u590d\u6570\u636e\uff1b<\/p>\n<\/li>\n<\/ul>\n
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