{"id":201245,"date":"2025-05-10T09:25:30","date_gmt":"2025-05-10T01:25:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201245\/"},"modified":"2025-05-10T09:25:30","modified_gmt":"2025-05-10T01:25:30","slug":"%e5%85%b3%e4%ba%8eredis%e6%95%b0%e6%8d%ae%e6%8c%81%e4%b9%85%e5%8c%96%e7%9a%84%e6%a6%82%e5%bf%b5%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201245\/","title":{"rendered":"\u5173\u4e8eRedis\u6570\u636e\u6301\u4e45\u5316\u7684\u6982\u5ff5\u4ecb\u7ecd"},"content":{"rendered":"

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

\u5173\u4e8eRedis\u6570\u636e\u6301\u4e45\u5316\u7684\u6982\u5ff5\u4ecb\u7ecd<\/h1>\n

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

\u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300a\u5173\u4e8eRedis\u6570\u636e\u6301\u4e45\u5316\u7684\u6982\u5ff5\u4ecb\u7ecd\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~<\/p>\n

\u4e00\u3001\u6570\u636e\u6301\u4e45\u5316\u7684\u6982\u8ff0<\/h2>\n

Redis\u662f\u5185\u5b58\u6570\u636e\u5e93\uff0c\u6570\u636e\u90fd\u662f\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\uff0c\u4e3a\u4e86\u907f\u514d\u670d\u52a1\u5668\u65ad\u7535\u7b49\u539f\u56e0\u5bfc\u81f4Redis\u8fdb\u7a0b\u5f02\u5e38\u9000\u51fa\u540e\u6570\u636e\u7684\u6c38\u4e45\u4e22\u5931\uff0c\u9700\u8981\u5b9a\u671f\u5c06Redis\u4e2d\u7684\u6570\u636e\u4ee5\u67d0\u79cd\u5f62\u5f0f(\u6216\u547d\u6570\u636e\u4ee4)\u4ece\u5185\u5b58\u4fdd\u5b58\u5230\u786c\u76d8;\u5f53\u4e0b\u6b21Redis\u91cd\u542f\u65f6\uff0c\u5229\u7528\u6301\u4e45\u5316\u6587\u4ef6\u5b9e\u73b0\u6570\u636e\u6062\u590d\u3002\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\uff08NFS) \u3002<\/p>\n

Redis\u63d0\u4f9b\u4e24\u79cd\u65b9\u5f0f\u8fdb\u884c\u6301\u4e45\u5316:
RDB\u6301\u4e45\u5316:\u539f\u7406\u662f\u5c06Reids\u5728\u5185\u5b58\u4e2d\u7684\u6570\u636e\u5e93\u8bb0\u5f55\u5b9a\u65f6\u4fdd\u5b58\u5230\u78c1\u76d8\u4e0a\u3002(\u7c7b\u4f3c\u5feb\u7167)<\/p>\n

AOF\u6301\u4e45\u5316(append only file):\u539f\u7406\u662f\u5c06Reids\u7684\u64cd\u4f5c\u65e5\u5fd7\u4ee5\u8ffd\u52a0\u7684\u65b9\u5f0f\u5199\u5165\u6587\u4ef6\uff0c\u7c7b\u4f3c\u4e8eMySQL\u7684binlogo(\u57fa\u4e8e\u65e5\u5fd7\u6301\u4e45\u5316\u65b9\u5f0f\uff09<\/p>\n

\u7531\u4e8eAOF\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\uff08\u4e00\u822c\u8bbe\u7f6e\u6bcf\u79d2\u4fdd\u5b58\u4e00\u6b21\uff09\uff0c\u56e0\u6b64AOF\u662f\u76ee\u524d\u4e3b\u6d41\u7684\u6301\u4e45\u5316\u65b9\u5f0f\uff0cRDB\u6301\u4e45\u5316\u57fa\u672c\u90fd\u4f1a\u5f00\u542f(\u7528\u4e8e\u96c6\u7fa4)<\/p>\n

<\/p>\n

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

\uff081\uff09RDB\u6301\u4e45\u5316\u662f\u6307\u5728\u6307\u5b9a\u7684\u65f6\u95f4\u95f4\u9694\u5185\u5c06\u5185\u5b58\u4e2d\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\u7528\u4e8c\u8fdb\u5236\u538b\u7f29\u5b58\u50a8\uff0c\u4fdd\u5b58\u7684\u6587\u4ef6\u540e\u7f00\u662frdb;\u5f53Redis\u91cd\u65b0\u542f\u52a8\u65f6\uff0c\u53ef\u4ee5\u8bfb\u53d6\u5feb\u7167\u6587\u4ef6\u6062\u590d\u6570\u636e\u3002<\/p>\n

\nRedis\u6570\u636e\u5e93\u6587\u4ef6\uff0c\u5168\u79f0Redis DataBase\n-\u6570\u636e\u6301\u4e45\u5316\u65b9\u5f0f\u4e4b\u4e00\n-\u6570\u636e\u6301\u4e45\u5316\u9ed8\u8ba4\u65b9\u5f0f\n-\u6309\u7167\u6307\u5b9a\u65f6\u95f4\u95f4\u9694\uff0c\u5c06\u5185\u5b58\u4e2d\u7684\u6570\u636e\u96c6\u5feb\u7167\u5199\u5165\u786c\u76d8-\u5feb\u7167\u672f\u8bed\u53ebSnapshot\n- \u6062\u590d\u65f6\uff0c\u5c06\u5feb\u7167\u6587\u4ef6\u76f4\u63a5\u8bfb\u5165\u5185\u5b58\n\u00b7\u5b9a\u4e49RDB\u6587\u4ef6\u540d\n- dbfilename \"dump.rdb\"   #\u6587\u4ef6\u540d<\/pre>\n
\uff082\uff09\u89e6\u53d1\u4fdd\u5b58<\/p>\n
\n\u4f18\u5316\u8bbe\u7f6e\uff0c\u6570\u636e\u4ece\u5185\u5b58\u4fdd\u5b58\u5230\u786c\u76d8\u7684\u9891\u7387\n- save 900 1     #15\u5206\u949f\u4e14\u67091\u4e2akey\u6539\u53d8\u65f6\u4fdd\u5b58\n- save 300 10     #5\u5206\u949f\u4e14\u670910\u4e2akey\u6539\u53d8\u65f6\n- save 60 10000    #1\u5206\u949f\u4e14\u670910000\u4e2akey\u6539\u53d8\u65f6\n\n\n\u624b\u52a8\u8fdb\u884c\u5b58\u76d8\n- save    #\u963b\u585e\u5199\u5b58\u76d8\uff0c\u4fdd\u5b58\u8fc7\u7a0b\u4e2dredis\u4e0d\u5141\u8bb8\u5199\u5165\u65b0\u6570\u636e\n- bgsave   #\u4e0d\u963b\u585e\u5199\u5b58\u76d8<\/pre>\n
vim \/etc\/redis\/6379.conf<\/p>\n
\n#----219\u884c----\u4ee5\u4e0b\u4e09\u4e2asave\u6761\u4ef6\u6ee1\u8db3\u4efb\u610f\u4e00\u4e2a\u65f6\uff0c\u90fd\u4f1a\u5f15\u8d77bgsave\u7684\u8c03\u7528\nsave 900 1 \uff1a\u5f53\u65f6\u95f4\u5230900\u79d2\u65f6\uff0c\u5982\u679credis\u6570\u636e\u53d1\u751f\u4e86\u81f3\u5c111\u6b21\u53d8\u5316\uff0c\u5219\u6267\u884cbgsave\nsave 300 10 \uff1a\u5f53\u65f6\u95f4\u5230300\u79d2\u65f6\uff0c\u5982\u679credis\u6570\u636e\u53d1\u751f\u4e86\u81f3\u5c1110\u6b21\u53d8\u5316\uff0c\u5219\u6267\u884cbgsave\nsave 60 10000 \uff1a\u5f53\u65f6\u95f4\u523060\u79d2\u65f6\uff0c\u5982\u679credis\u6570\u636e\u53d1\u751f\u4e86\u81f3\u5c1110000\u6b21\u53d8\u5316\uff0c\u5219\u6267\u884cbgsave\n#----242\u884c----\u662f\u5426\u5f00\u542fRDB\u6587\u4ef6\u538b\u7f29\nrdbcompression yes\n#----254\u884c----\u6307\u5b9aRDB\u6587\u4ef6\u540d\ndbfilename dump.rdb\n#----264\u884c----\u6307\u5b9aRDB\u6587\u4ef6\u548cAOF\u6587\u4ef6\u6240\u5728\u76ee\u5f55\ndir \/var\/lib\/redis\/6379<\/pre>\n
\uff083\uff09\u5176\u4ed6\u81ea\u52a8\u89e6\u53d1\u673a\u5236
 \u9664\u4e86save m n \u4ee5\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u60c5\u51b5\u4f1a\u89e6\u53d1bgsave\uff1a
 \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\u884cbgsave\u547d\u4ee4\uff0c\u5e76\u5c06rdb\u6587\u4ef6\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\u3002<\/p>\n
\u6267\u884cshutdown\u5173\u95ed\u547d\u4ee4\u65f6\uff0c\u4e5f\u81ea\u52a8\u6267\u884crdb\u6301\u4e45\u5316\u3002<\/p>\n
(4)\u6267\u884c\u6d41\u7a0b:<\/p>\n
<\/p>\n
\n\u4f7f\u7528RDB\u6587\u4ef6\u6062\u590d\u6570\u636e\n\u00b7\u5907\u4efd\u6570\u636e\n-\u5907\u4efddump.rdb \u6587\u4ef6\u5230\u5176\u4ed6\u4f4d\u7f6e\n]# cp \u6570\u636e\u5e93\u76ee\u5f55\/dump.rdb  \u5907\u4efd\u76ee\u5f55\n\n\u00b7\u6062\u590d\u6570\u636e\n-\u62f7\u8d1d\u5907\u4efd\u6587\u4ef6\u5230\u6570\u636e\u5e93\u76ee\u5f55\uff0c\u91cd\u542fredis\u670d\u52a1\n]#cp \u5907\u4efd\u76ee\u5f55\/dump.rdb   \u6570\u636e\u5e93\u76ee\u5f55\/<\/pre>\n
(4) \u542f\u52a8\u65f6\u52a0\u8f7d<\/p>\n
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\u4e8eAOF\u7684\u4f18\u5148\u7ea7\u66f4\u9ad8\uff0c\u56e0\u6b64\u5f53AOF\u5f00\u542f\u65f6\uff0cRedis\u4f1a\u4f18\u5148\u8f7d\u5165 AOF\u6587\u4ef6\u6765\u6062\u590d\u6570\u636e\uff1b\u53ea\u6709\u5f53AOF\u5173\u95ed\u65f6\uff0c\u624d\u4f1a\u5728Redis\u670d\u52a1\u5668\u542f\u52a8\u65f6\u68c0\u6d4bRDB\u6587\u4ef6\uff0c\u5e76\u81ea\u52a8\u8f7d\u5165\u3002\u670d\u52a1\u5668\u8f7d\u5165RDB\u6587\u4ef6\u671f\u95f4\u5904\u4e8e\u963b\u585e\u72b6\u6001\uff0c\u76f4\u5230\u8f7d\u5165\u5b8c\u6210\u4e3a\u6b62\u3002
 Redis\uff08AOF\u5173\u95ed\u7684\u65f6\u5019\uff09\u8f7d\u5165RDB\u6587\u4ef6\u65f6\uff0c\u4f1a\u5bf9RDB\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<\/p>\n
.AOF \u6301\u4e45\u5316
 RDB\u6301\u4e45\u5316\u662f\u5c06\u8fdb\u7a0b\u6570\u636e\u5199\u5165\u6587\u4ef6\uff0c\u800cAOF\u6301\u4e45\u5316\uff0c\u5219\u662f\u5c06Redis\u6267\u884c\u7684\u6bcf\u6b21\u5199\u3001\u5220\u9664\u547d\u4ee4\u8bb0\u5f55\u5230\u5355\u72ec\u7684\u65e5\u5fd7\u6587\u4ef6\u4e2d\uff0c\u67e5\u8be2\u64cd\u4f5c\u4e0d\u4f1a\u8bb0\u5f55\uff1b \u5f53Redis\u91cd\u542f\u65f6\u518d\u6b21\u6267\u884cAOF\u6587\u4ef6\u4e2d\u7684\u547d\u4ee4\u6765\u6062\u590d\u6570\u636e\u3002
 \u4e0eRDB\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
2\u3001\u5f00\u542fAOF<\/h3>\n
Redis\u670d\u52a1\u5668\u9ed8\u8ba4\u5f00\u542fRDB\uff0c\u5173\u95edAOF\uff1b\u8981\u5f00\u542fAOF\uff0c\u9700\u8981\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u914d\u7f6e\uff1a
 \uff081\uff09\u3001\u4fee\u6539\u914d\u7f6e\u6587\u4ef6
 vim \/etc\/redis\/6379.conf<\/p>\n
\n\u2460Redis\u7236\u8fdb\u7a0b\u9996\u5148\u5224\u65ad\uff1a\u5f53\u524d\u662f\u5426\u5728\u6267\u884csave\uff0c\u6216bgsave\/bgrewriteaof\u7684\u5b50\u8fdb\u7a0b\uff0c\u5982\u679c\u5728\u6267\u884c\u5219bgsave\u547d\u4ee4\u76f4\u63a5\u8fd4\u56de\u3002 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\n\u2461\u7236\u8fdb\u7a0b\u6267\u884cfork\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\n\u2462\u7236\u8fdb\u7a0bfork\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\n\u2463\u5b50\u8fdb\u7a0b\u521b\u5efaRDB\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\n\u2464\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<\/pre>\n
\uff082\uff09\u3001\u6267\u884c\u6d41\u7a0b<\/p>\n
\n#----700\u884c----\u4fee\u6539\uff1b\u5f00\u542fAOF\nappendonly yes\n#----704\u884c----\u6307\u5b9aAOF\u6587\u4ef6\u540d\u79f0\nappendfilename \"appendonly.aof\"\n#----796\u884c----\u662f\u5426\u5ffd\u7565\u6700\u540e\u4e00\u6761\u53ef\u80fd\u5b58\u5728\u95ee\u9898\u7684\u6307\u4ee4\naof-load-truncated yes\n#\u6307redis\u5728\u6062\u590d\u65f6\uff0c\u4f1a\u5ffd\u7565\u6700\u540e\u4e00\u6761\u53ef\u80fd\u5b58\u5728\u95ee\u9898\u7684\u6307\u4ee4\uff0c\u9ed8\u8ba4\u4e3ayes\uff0c\u5373\u5728aof\u5199\u5165\u65f6\uff0c\u53ef\u80fd\u5b58\u5728\u6307\u4ee4\u9519\u8bef\u7684\u95ee\u9898\uff08\u7a81\u7136\u65ad\u7535\u5bfc\u81f4\u672a\u6267\u884c\u7ed3\u675f\uff09\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cyes\u4f1alog\u5e76\u7ee7\u7eed\uff0c\u800cno\u4f1a\u76f4\u63a5\u6062\u590d\u5931\u8d25\n\/etc\/init.d\/redis_6379 restart\n#\u9700\u8981\u5148\u53d6\u6d88\u5bc6\u7801<\/pre>\n
\u6587\u4ef6\u91cd\u5199\u7684\u89e6\u53d1\uff0c\u5206\u4e3a\u624b\u52a8\u89e6\u53d1\u548c\u81ea\u52a8\u89e6\u53d1\uff1a<\/p>\n
\u624b\u52a8\u89e6\u53d1\uff1a\u76f4\u63a5\u8c03\u7528bgrewriteaof\u547d\u4ee4\uff0c\u8be5\u547d\u4ee4\u7684\u6267\u884c\u4e0ebgsave\u6709\u4e9b\u7c7b\u4f3c\uff1a\u90fd\u662ffork\u5b50\u8fdb\u7a0b\u8fdb\u884c\u5177\u4f53\u7684\u5de5\u4f5c\uff0c\u4e14\u90fd\u53ea\u6709\u5728fork\u65f6\u963b\u585e\u3002<\/p>\n
\u81ea\u52a8\u89e6\u53d1\uff1a\u901a\u8fc7\u8bbe\u7f6eauto-aof-rewrite-min-size\u9009\u9879\u548cauto-aof-rewrite-percentage\u9009\u9879\u6765\u81ea\u52a8\u6267\u884cBGREWRITEAOF\u3002 \u53ea\u6709\u5f53auto-aof-rewrite-min-size\u548cauto-aof-rewrite-percentage\u4e24\u4e2a\u9009\u9879\u540c\u65f6\u6ee1\u8db3\u65f6\uff0c\u624d\u4f1a\u81ea\u52a8\u89e6\u53d1AOF\u91cd\u5199\uff0c\u5373bgrewriteaof\u64cd\u4f5c\u3002<\/p>\n
\n\u7531\u4e8e\u9700\u8981\u8bb0\u5f55Redis\u7684\u6bcf\u6761\u5199\u547d\u4ee4\uff0c\u56e0\u6b64AOF\u4e0d\u9700\u8981\u89e6\u53d1\uff0c\u4e0b\u9762\u4ecb\u7ecdAOF\u7684\u6267\u884c\u6d41\u7a0b\u3002\nAOF\u7684\u6267\u884c\u6d41\u7a0b\u5305\u62ec\uff1a\n\u547d\u4ee4\u8ffd\u52a0(append)\uff1a\u5c06Redis\u7684\u5199\u547d\u4ee4\u8ffd\u52a0\u5230\u7f13\u51b2\u533aaof_buf\n\u6587\u4ef6\u5199\u5165(write)\u548c\u6587\u4ef6\u540c\u6b65(sync)\uff1a\u6839\u636e\u4e0d\u540c\u7684\u540c\u6b65\u7b56\u7565\u5c06aof_buf\u4e2d\u7684\u5185\u5bb9\u540c\u6b65\u5230\u786c\u76d8\n\u6587\u4ef6\u91cd\u5199(rewrite)\uff1a\u5b9a\u671f\u91cd\u5199AOF\u6587\u4ef6\uff0c\u8fbe\u5230\u538b\u7f29\u7684\u76ee\u7684\n\u2460\u3001\u547d\u4ee4\u8ffd\u52a0\uff08append\uff09\nRedis\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\u76d8IO\u6210\u4e3aRedis\u8d1f\u8f7d\u7684\u74f6\u9888\u3002\n\u547d\u4ee4\u8ffd\u52a0\u7684\u683c\u5f0f\u662fRedis\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\u3002\u5728AOF\u6587\u4ef6\u4e2d\uff0c\u9664\u4e86\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u5e93\u7684select\u547d\u4ee4\uff08\u5982select 0\u4e3a\u9009\u4e2d0\u53f7\u6570\u636e\u5e93\uff09\u662f\u7531Redis\u6dfb\u52a0\u7684\uff0c\u5176\u4ed6\u90fd\u662f\u5ba2\u6237\u7aef\u53d1\u9001\u6765\u7684\u5199\u547d\u4ee4\u3002\n\u2461\u3001\u6587\u4ef6\u5199\u5165\uff08write\uff09\u548c\u6587\u4ef6\u540c\u6b65\uff08sync\uff09\nRedis\u63d0\u4f9b\u4e86\u591a\u79cdAOF\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\n\u4e3a\u4e86\u63d0\u9ad8\u6587\u4ef6\u5199\u5165\u6548\u7387\uff0c\u5728\u73b0\u4ee3\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u5f53\u7528\u6237\u8c03\u7528write\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\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\uff1b\u56e0\u6b64\u7cfb\u7edf\u540c\u65f6\u63d0\u4f9b\u4e86fsync\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\nAOF\u7f13\u5b58\u533a\u7684\u540c\u6b65\u6587\u4ef6\u7b56\u7565\u5b58\u5728\u4e09\u79cd\u540c\u6b65\u65b9\u5f0f\uff0c\u5b83\u4eec\u5206\u522b\u662f\uff1a\uff08vim \/etc\/redis\/6379.conf ----\u300b 729\u884c \uff09\nappendfsync always\uff1a \u547d\u4ee4\u5199\u5165aof_buf\u540e\u7acb\u5373\u8c03\u7528\u7cfb\u7edffsync\u64cd\u4f5c\u540c\u6b65\u5230AOF\u6587\u4ef6\uff0cfsync\u5b8c\u6210\u540e\u7ebf\u7a0b\u8fd4\u56de\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6bcf\u6b21\u6709\u5199\u547d\u4ee4\u90fd\u8981\u540c\u6b65\u5230AOF\u6587\u4ef6\uff0c\u786c\u76d8IO\u6210\u4e3a\u6027\u80fd\u74f6\u9888\uff0cRedis\u53ea\u80fd\u652f\u6301\u5927\u7ea6\u51e0\u767eTPS\u5199\u5165\uff0c\u4e25\u91cd\u964d\u4f4e\u4e86Redis\u7684\u6027\u80fd\uff1b\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\u4f4eSSD\u7684\u5bff\u547d\u3002\nappendfsync no\uff1a \u547d\u4ee4\u5199\u5165aof_buf\u540e\u8c03\u7528\u7cfb\u7edfwrite\u64cd\u4f5c\uff0c\u4e0d\u5bf9AOF\u6587\u4ef6\u505afsync\u540c\u6b65\uff1b\u540c\u6b65\u7531\u64cd\u4f5c\u7cfb\u7edf\u8d1f\u8d23\uff0c\u901a\u5e38\u540c\u6b65\u5468\u671f\u4e3a30\u79d2\u3002\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\nappendfsync everysec\uff1a \u547d\u4ee4\u5199\u5165aof_buf\u540e\u8c03\u7528\u7cfb\u7edfwrite\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\u3002everysec\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\u662fRedis\u7684\u9ed8\u8ba4\u914d\u7f6e\uff0c\u4e5f\u662f\u6211\u4eec\u63a8\u8350\u7684\u914d\u7f6e\u3002\n\u2462\u3001\u6587\u4ef6\u91cd\u5199\uff08rewrite\uff09\n\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\u7684AOF\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\n\u6587\u4ef6\u91cd\u5199\u662f\u6307\u5b9a\u671f\u91cd\u5199AOF\u6587\u4ef6\uff0c\u51cf\u5c0fAOF\u6587\u4ef6\u7684\u4f53\u79ef\u3002\nAOF\u91cd\u5199\u662f\u628aRedis\u8fdb\u7a0b\u5185\u7684\u6570\u636e\u8f6c\u5316\u4e3a\u5199\u547d\u4ee4\uff0c\u540c\u6b65\u5230\u65b0\u7684AOF\u6587\u4ef6\n\u4e0d\u4f1a\u5bf9\u65e7\u7684AOF\u6587\u4ef6\u8fdb\u884c\u4efb\u4f55\u8bfb\u53d6\u3001\u5199\u5165\u64cd\u4f5c\n\u5bf9\u4e8eAOF\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\uff1b\u5373\u4f7f\u6ca1\u6709\u6587\u4ef6\u91cd\u5199\uff0c\u6570\u636e\u4e5f\u53ef\u4ee5\u88ab\u6301\u4e45\u5316\u5e76\u5728Redis\u542f\u52a8\u7684\u65f6\u5019\u5bfc\u5165\uff1b\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<\/pre>\n
\n
\u6587\u4ef6\u91cd\u5199\u4e4b\u6240\u4ee5\u80fd\u591f\u538b\u7f29AOF\u6587\u4ef6\uff0c\u539f\u56e0\u5728\u4e8e\uff1a
  \u8fc7\u671f\u7684\u6570\u636e\u4e0d\u518d\u5199\u5165\u6587\u4ef6
  \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, set mykey v2)\u3001\u6709\u4e9b\u6570\u636e\u88ab\u5220\u9664\u4e86(sadd myset v1, del myset)\u7b49\u3002
  \u591a\u6761\u547d\u4ee4\u53ef\u4ee5\u5408\u5e76\u4e3a\u4e00\u4e2a\uff1a\u5982sadd myset v1, sadd myset v2, sadd myset v3\u53ef\u4ee5\u5408\u5e76\u4e3asadd myset v1 v2 v3\u3002<\/p>\n<\/blockquote>\n
\u6587\u4ef6\u91cd\u5199\u7684\u89e6\u53d1\uff0c\u5206\u4e3a\u624b\u52a8\u89e6\u53d1\u548c\u81ea\u52a8\u89e6\u53d1\uff1a<\/p>\n
\u624b\u52a8\u89e6\u53d1\uff1a\u76f4\u63a5\u8c03\u7528bgrewriteaof\u547d\u4ee4\uff0c\u8be5\u547d\u4ee4\u7684\u6267\u884c\u4e0ebgsave\u6709\u4e9b\u7c7b\u4f3c\uff1a\u90fd\u662ffork\u5b50\u8fdb\u7a0b\u8fdb\u884c\u5177\u4f53\u7684\u5de5\u4f5c\uff0c\u4e14\u90fd\u53ea\u6709\u5728fork\u65f6\u963b\u585e\u3002<\/p>\n
\u81ea\u52a8\u89e6\u53d1\uff1a\u901a\u8fc7\u8bbe\u7f6eauto-aof-rewrite-min-size\u9009\u9879\u548cauto-aof-rewrite-percentage\u9009\u9879\u6765\u81ea\u52a8\u6267\u884cBGREWRITEAOF\u3002 \u53ea\u6709\u5f53auto-aof-rewrite-min-size\u548cauto-aof-rewrite-percentage\u4e24\u4e2a\u9009\u9879\u540c\u65f6\u6ee1\u8db3\u65f6\uff0c\u624d\u4f1a\u81ea\u52a8\u89e6\u53d1AOF\u91cd\u5199\uff0c\u5373bgrewriteaof\u64cd\u4f5c\u3002<\/p>\n
\nauto-aof-rewrite-percentage 100 \uff1a\u5f53\u524dAOF\u6587\u4ef6\u5927\u5c0f(\u5373aof_current_size)\u662f\u4e0a\u6b21\u65e5\u5fd7\u91cd\u5199\u65f6AOF\u6587\u4ef6\u5927\u5c0f(aof_base_size)\u4e24\u500d\u65f6\uff0c\u53d1\u751fBGREWRITEAOF\u64cd\u4f5c\n   auto-aof-rewrite-min-size 64mb \uff1a\u5f53\u524dAOF\u6587\u4ef6\u6267\u884cBGREWRITEAOF\u547d\u4ee4\u7684\u6700\u5c0f\u503c\uff0c\u907f\u514d\u521a\u5f00\u59cb\u542f\u52a8Reids\u65f6\u7531\u4e8e\u6587\u4ef6\u5c3a\u5bf8\u8f83\u5c0f\u5bfc\u81f4\u9891\u7e41\u7684BGREWRITEAOF\n\n\n\nvim \/etc\/redis\/6379.conf\n#----729\u884c----\nauto-aof-rewrite-percentage 100\n#\u5f53\u524dAOF\u6587\u4ef6\u5927\u5c0f\uff08\u5373aof_current_size\uff09\u662f\u4e0a\u6b21\u65e5\u5fd7\u91cd\u5199\u65f6AOF\u6587\u4ef6\u5927\u5c0f\uff08aof_base_size\uff09\u7684\u4e24\u500d\u65f6\uff0c\u53d1\u751fbgrewriteaof\u64cd\u4f5c\nauto-aof-rewrite-min-size 64mb \n#\u5f53\u524dAOF\u6587\u4ef6\u6267\u884cbgrewriteaof\u547d\u4ee4\u7684\u6700\u5c0f\u503c\uff0c\u907f\u514d\u521a\u5f00\u59cb\u542f\u52a8redis\u65f6\u7531\u4e8e\u6587\u4ef6\u5c3a\u5bf8\u8f83\u5c0f\u5bfc\u81f4\u9891\u7e41\u7684bgrewriteaof\n\n\u6ce8\u610f\uff1a\n\t\u91cd\u5199\u7531\u7236\u8fdb\u7a0bfork\u5b50\u8fdb\u7a0b\u8fdb\u884c\n\t\u91cd\u5199\u671f\u95f4Redis\u6267\u884c\u7684\u5199\u547d\u4ee4\uff0c\u9700\u8981\u8ffd\u52a0\u5230\u65b0\u7684AOF\u6587\u4ef6\u4e2d\uff0c\u4e3a\u6b64Redis\u5f15\u5165\u4e86aof_rewrite_buf\u7f13\u5b58\u3002<\/pre>\n
\uff083\uff09\u3001\u6587\u4ef6\u91cd\u5199\u7684\u6d41\u7a0b\u5982\u4e0b<\/p>\n
Redis\u7236\u8fdb\u7a0b\u9996\u5148\u5224\u65ad\u5f53\u524d\u662f\u5426\u5b58\u5728\u6b63\u5728\u6267\u884cbgsave\/bgrewriteaof\u7684\u5b50\u8fdb\u7a0b\uff0c\u5982\u679c\u5b58\u5728\u5219bgrewriteaof\u547d\u4ee4\u76f4\u63a5\u8fd4\u56de\uff0c\u5982\u679c\u5b58\u5728 bgsave\u547d\u4ee4\u5219\u7b49bgsave\u6267\u884c\u5b8c\u6210\u540e\u518d\u6267\u884c\u3002
 \u7236\u8fdb\u7a0b\u6267\u884cfork\u64cd\u4f5c\u521b\u5efa\u5b50\u8fdb\u7a0b\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\u7236\u8fdb\u7a0b\u662f\u963b\u585e\u7684\u3002
 \u7236\u8fdb\u7a0bfork\u540e\uff0cbgrewriteaof\u547d\u4ee4\u8fd4\u56de\u201dBackground 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\u3002Redis\u7684\u6240\u6709\u5199\u547d\u4ee4\u4f9d\u7136\u5199\u5165AOF\u7f13\u51b2\u533a\uff0c\u5e76\u6839\u636eappendfsync\u7b56\u7565\u540c\u6b65\u5230\u786c\u76d8\uff0c\u4fdd\u8bc1\u539f\u6709AOF\u673a\u5236\u7684\u6b63\u786e\u3002
 \u7531\u4e8efork\u64cd\u4f5c\u4f7f\u7528\u5199\u65f6\u590d\u5236\u6280\u672f\uff0c\u5b50\u8fdb\u7a0b\u53ea\u80fd\u5171\u4eabfork\u64cd\u4f5c\u65f6\u7684\u5185\u5b58\u6570\u636e\u3002\u7531\u4e8e\u7236\u8fdb\u7a0b\u4f9d\u7136\u5728\u54cd\u5e94\u547d\u4ee4\uff0c\u56e0\u6b64Redis\u4f7f\u7528AOF\u91cd\u5199\u7f13\u51b2\u533a(aof_rewrite_buf)\u4fdd\u5b58\u8fd9\u90e8\u5206\u6570\u636e\uff0c\u9632\u6b62\u65b0AOF\u6587\u4ef6\u751f\u6210\u671f\u95f4\u4e22\u5931\u8fd9\u90e8\u5206\u6570\u636e\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cbgrewriteaof\u6267\u884c\u671f\u95f4\uff0cRedis\u7684\u5199\u547d\u4ee4\u540c\u65f6\u8ffd\u52a0\u5230aof_buf\u548caof_rewirte_buf\u4e24\u4e2a\u7f13\u51b2\u533a\u3002
 \u5b50\u8fdb\u7a0b\u6839\u636e\u5185\u5b58\u5feb\u7167\uff0c\u6309\u7167\u547d\u4ee4\u5408\u5e76\u89c4\u5219\u5199\u5165\u5230\u65b0\u7684AOF\u6587\u4ef6\u3002
 \u5b50\u8fdb\u7a0b\u5199\u5b8c\u65b0\u7684AOF\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\u8fc7info persistence\u67e5\u770b\u3002
 \u7236\u8fdb\u7a0b\u628aAOF\u91cd\u5199\u7f13\u51b2\u533a\u7684\u6570\u636e\u5199\u5165\u5230\u65b0\u7684AOF\u6587\u4ef6\uff0c\u8fd9\u6837\u5c31\u4fdd\u8bc1\u4e86\u65b0AOF\u6587\u4ef6\u6240\u4fdd\u5b58\u7684\u6570\u636e\u5e93\u72b6\u6001\u548c\u670d\u52a1\u5668\u5f53\u524d\u72b6\u6001\u4e00\u81f4\u3002
 \u4f7f\u7528\u65b0\u7684AOF\u6587\u4ef6\u66ff\u6362\u8001\u6587\u4ef6\uff0c\u5b8c\u6210AOF\u91cd\u5199\u3002<\/p>\n
\uff084\uff09\u3001\u542f\u52a8\u65f6\u52a0\u8f7d
 \u5f53AOF\u5f00\u542f\u65f6\uff0cRedis\u542f\u52a8\u65f6\u4f1a\u4f18\u5148\u8f7d\u5165AOF\u6587\u4ef6\u6765\u6062\u590d\u6570\u636e\uff1b\u53ea\u6709\u5f53AOF\u5173\u95ed\u65f6\uff0c\u624d\u4f1a\u8f7d\u5165RDB\u6587\u4ef6\u6062\u590d\u6570\u636e\u3002
 \u5f53AOF\u5f00\u542f\uff0c\u4f46AOF\u6587\u4ef6\u4e0d\u5b58\u5728\u65f6\uff0c\u5373\u4f7fRDB\u6587\u4ef6\u5b58\u5728\u4e5f\u4e0d\u4f1a\u52a0\u8f7d\u3002
 Redis\u8f7d\u5165AOF\u6587\u4ef6\u65f6\uff0c\u4f1a\u5bf9AOF\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\u4f46\u5982\u679c\u662fAOF\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\u4e14aof-load-truncated\u53c2\u6570\u5f00\u542f\uff0c\u5219\u65e5\u5fd7\u4e2d\u4f1a\u8f93\u51fa\u8b66\u544a\uff0cRedis\u5ffd\u7565\u6389AOF\u6587\u4ef6\u7684\u5c3e\u90e8\uff0c\u542f\u52a8\u6210\u529f\u3002aof-load-truncated\u53c2\u6570\u9ed8\u8ba4\u662f\u5f00\u542f\u7684\u3002<\/p>\n
\u4e8c .RDB \u548c AOF \u7684\u4f18\u7f3a\u70b9<\/h2>\n
 1\u3001 RDB \u6301\u4e45\u5316\u4f18\u7f3a\u70b9<\/h3>\n
\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\u6bd4AOF\u5feb\u5f88\u591a\u3002\u5f53\u7136\uff0c\u4e0eAOF\u76f8\u6bd4\uff0cRDB\u6700\u91cd\u8981\u7684\u4f18\u70b9\u4e4b\u4e00\u662f\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\u76f8\u5bf9\u8f83\u5c0f\u3002
 \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\u6b64AOF\u6301\u4e45\u5316\u6210\u4e3a\u4e3b\u6d41\u3002\u6b64\u5916\uff0cRDB\u6587\u4ef6\u9700\u8981\u6ee1\u8db3\u7279\u5b9a\u683c\u5f0f\uff0c\u517c\u5bb9\u6027\u5dee\uff08\u5982\u8001\u7248\u672c\u7684Redis\u4e0d\u517c\u5bb9\u65b0\u7248\u672c\u7684RDB\u6587\u4ef6\uff09\u3002
 \u5bf9\u4e8eRDB\u6301\u4e45\u5316\uff0c\u4e00\u65b9\u9762\u662fbgsave\u5728\u8fdb\u884cfork\u64cd\u4f5c\u65f6Redis\u4e3b\u8fdb\u7a0b\u4f1a\u963b\u585e\uff0c\u53e6\u4e00\u65b9\u9762\uff0c\u5b50\u8fdb\u7a0b\u5411\u786c\u76d8\u5199\u6570\u636e\u4e5f\u4f1a\u5e26\u6765IO\u538b\u529b\u3002<\/p>\n
2\u3001 AOF \u6301\u4e45\u5316\u4f18\u7f3a\u70b9<\/h3>\n
\u4e0eRDB\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
 \u5bf9\u4e8eAOF\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\u6210AOF\u8ffd\u52a0\u963b\u585e\u95ee\u9898\u3002
 AOF\u6587\u4ef6\u7684\u91cd\u5199\u4e0eRDB\u7684bgsave\u7c7b\u4f3c\uff0c\u4f1a\u6709fork\u65f6\u7684\u963b\u585e\u548c\u5b50\u8fdb\u7a0b\u7684IO\u538b\u529b\u95ee\u9898\u3002\u76f8\u5bf9\u6765\u8bf4\uff0c\u7531\u4e8eAOF\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
 .Redis \u6027\u80fd\u7ba1\u7406
 9.1\u67e5\u770bRedis\u5185\u5b58\u4f7f\u7528<\/p>\n
redis-cli -h 192.168.184.10 -p 6379 #\u767b\u5f55
 info memory #\u8f93\u5165\u6307\u4ee4\u8fdb\u884c\u67e5\u770b<\/p>\n
9.2\u5185\u5b58\u788e\u7247\u7387
 \u64cd\u4f5c\u7cfb\u7edf\u5206\u914d\u7684\u5185\u5b58\u503cused_memory_rss\u9664\u4ee5Redis\u4f7f\u7528\u7684\u5185\u5b58\u503cused_memory\u8ba1\u7b97\u5f97\u51fa\u5185\u5b58\u788e\u7247\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u4f4e\u6548\u7684\u5206\u914d\/\u56de\u6536\u7269\u7406\u5185\u5b58\u5bfc\u81f4\u7684\uff08\u4e0d\u8fde\u7eed\u7684\u7269\u7406\u5185\u5b58\u5206\u914d\uff09
 \u8ddf\u8e2a\u5185\u5b58\u788e\u7247\u7387\u5bf9\u7406\u89e3Redis\u5b9e\u4f8b\u7684\u8d44\u6e90\u6027\u80fd\u662f\u975e\u5e38\u91cd\u8981\u7684\uff1a
 \u5185\u5b58\u788e\u7247\u7387\u7a0d\u5927\u4e8e1\u662f\u5408\u7406\u7684\uff0c\u8fd9\u4e2a\u503c\u8868\u793a\u5185\u5b58\u788e\u7247\u7387\u6bd4\u8f83\u4f4e
 \u5185\u5b58\u788e\u7247\u7387\u8d85\u8fc71.5\uff0c\u8bf4\u660eRedis\u6d88\u8017\u4e86\u5b9e\u9645\u9700\u8981\u7269\u7406\u5185\u5b58\u7684150%\uff0c\u5176\u4e2d50%\u662f\u5185\u5b58\u788e\u7247\u7387\u3002\u9700\u8981\u5728redis-cli\u5de5\u5177\u4e0a\u8f93\u5165shutdown save \u547d\u4ee4\uff0c\u5e76\u91cd\u542f Redis \u670d\u52a1\u5668\u3002
 \u5185\u5b58\u788e\u7247\u7387\u4f4e\u4e8e1\u7684\uff0c\u8bf4\u660eRedis\u5185\u5b58\u5206\u914d\u8d85\u51fa\u4e86\u7269\u7406\u5185\u5b58\uff0c\u64cd\u4f5c\u7cfb\u7edf\u6b63\u5728\u8fdb\u884c\u5185\u5b58\u4ea4\u6362\u3002\u9700\u8981\u589e\u52a0\u53ef\u7528\u7269\u7406\u5185\u5b58\u6216\u51cf\u5c11 Redis \u5185\u5b58\u5360\u7528\u3002<\/p>\n
9.3\u5185\u5b58\u4f7f\u7528\u7387
 redis\u5b9e\u4f8b\u7684\u5185\u5b58\u4f7f\u7528\u7387\u8d85\u8fc7\u53ef\u7528\u6700\u5927\u5185\u5b58\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5c06\u5f00\u59cb\u8fdb\u884c\u5185\u5b58\u4e0eswap\u7a7a\u95f4\u4ea4\u6362\u3002
 \u907f\u514d\u5185\u5b58\u4ea4\u6362\u53d1\u751f\u7684\u65b9\u6cd5\uff1a
 \uff081\uff09\u9488\u5bf9\u7f13\u5b58\u6570\u636e\u5927\u5c0f\u9009\u62e9\u5b89\u88c5 Redis \u5b9e\u4f8b
 \uff082\uff09\u5c3d\u53ef\u80fd\u7684\u4f7f\u7528Hash\u6570\u636e\u7ed3\u6784\u5b58\u50a8
 \uff083\uff09\u8bbe\u7f6ekey\u7684\u8fc7\u671f\u65f6\u95f4<\/p>\n
9.4 \u5185\u56de\u6536key
 \u4fdd\u8bc1\u5408\u7406\u5206\u914dredis\u6709\u9650\u7684\u5185\u5b58\u8d44\u6e90\u3002
 \u5f53\u8fbe\u5230\u8bbe\u7f6e\u7684\u6700\u5927\u9600\u503c\u65f6\uff0c\u9700\u9009\u62e9\u4e00\u79cdkey\u7684\u56de\u6536\u7b56\u7565\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u56de\u6536\u7b56\u7565\u662f\u7981\u6b62\u5220\u9664\u3002<\/p>\n
\u914d\u7f6e\u6587\u4ef6\u4e2d\u4fee\u6539 maxmemory-policy \u5c5e\u6027\u503c\uff1a<\/p>\n
vim \/etc\/redis\/6379.conf<\/p>\n
\n#----598\u53d6\u6d88\u6ce8\u91ca----\nmaxmemory-policy noenviction\n\nvolatile-lru\t\uff1a\u4f7f\u7528LRU\u7b97\u6cd5\u4ece\u5df2\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u7684\u6570\u636e\u96c6\u5408\u4e2d\u6dd8\u6c70\u6570\u636e\nvolatile-ttl\t\uff1a\u4ece\u5df2\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u7684\u6570\u636e\u96c6\u5408\u4e2d\u6311\u9009\u5373\u5c06\u8fc7\u671f\u7684\u6570\u636e\u6dd8\u6c70\nvolatile-random\t\uff1a\u4ece\u5df2\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u7684\u6570\u636e\u96c6\u5408\u4e2d\u968f\u673a\u6311\u9009\u6570\u636e\u6dd8\u6c70\nallkeys-lru\t\t\uff1a\u4f7f\u7528LRU\u7b97\u6cd5\u4ece\u6240\u6709\u6570\u636e\u96c6\u5408\u4e2d\u6dd8\u6c70\u6570\u636e\nallkeys-random\t\uff1a\u4ece\u6570\u636e\u96c6\u5408\u4e2d\u4efb\u610f\u9009\u62e9\u6570\u636e\u6dd8\u6c70\nnoenviction\t\t\uff1a\u7981\u6b62\u6dd8\u6c70\u6570\u636e<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u5173\u4e8eRedis\u6570\u636e\u6301\u4e45\u5316\u7684\u6982\u5ff5\u4ecb...<\/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-201245","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201245","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=201245"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201245\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}