{"id":5020,"date":"2021-01-31T14:06:27","date_gmt":"2021-01-31T06:06:27","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=5020"},"modified":"2021-01-31T14:07:09","modified_gmt":"2021-01-31T06:07:09","slug":"%e9%ab%98%e9%a2%91redis%e9%9d%a2%e8%af%95%e9%a2%98%e8%a7%a3%e6%9e%90%ef%bc%9aredis-%e4%ba%8b%e5%8a%a1%e6%98%af%e5%90%a6%e5%85%b7%e5%a4%87%e5%8e%9f%e5%ad%90%e6%80%a7%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/5020","title":{"rendered":"\u9ad8\u9891Redis\u9762\u8bd5\u9898\u89e3\u6790\uff1aRedis \u4e8b\u52a1\u662f\u5426\u5177\u5907\u539f\u5b50\u6027\uff1f"},"content":{"rendered":"
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\u539f\u6587\u5730\u5740<\/a><\/p>\n

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\u4e00\u3001Redis \u4e8b\u52a1\u7684\u5b9e\u73b0\u539f\u7406<\/h1>\n

\u4e00\u4e2a\u4e8b\u52a1\u4ece\u5f00\u59cb\u5230\u7ed3\u675f\u901a\u5e38\u4f1a\u7ecf\u5386\u4ee5\u4e0b\u4e09\u4e2a\u9636\u6bb5\uff1a<\/p>\n

1\u3001\u4e8b\u52a1\u5f00\u59cb<\/strong><\/p>\n

\u5ba2\u6237\u7aef\u53d1\u9001 MULTI \u547d\u4ee4\uff0c\u670d\u52a1\u5668\u6267\u884c MULTI \u547d\u4ee4\u903b\u8f91\u3002<\/p>\n

\u670d\u52a1\u5668\u4f1a\u5728\u5ba2\u6237\u7aef\u72b6\u6001\uff08redisClient\uff09\u7684 flags \u5c5e\u6027\u6253\u5f00 REDIS_MULTI \u6807\u8bc6\uff0c\u5c06\u5ba2\u6237\u7aef\u4ece\u975e\u4e8b\u52a1\u72b6\u6001\u5207\u6362\u5230\u4e8b\u52a1\u72b6\u6001\u3002<\/p>\n

void<\/span> multiCommand<\/span>(redisClient *c)<\/span> <\/span>{\r\n    \/\/ \u4e0d\u80fd\u5728\u4e8b\u52a1\u4e2d\u5d4c\u5957\u4e8b\u52a1<\/span>\r\n    if<\/span> (c->flags & REDIS_MULTI) {\r\n        addReplyError(c,\"MULTI calls can not be nested\"<\/span>);\r\n        return<\/span>;\r\n    }\r\n    \/\/ \u6253\u5f00\u4e8b\u52a1 FLAG<\/span>\r\n    c->flags |= REDIS_MULTI;\r\n    addReply(c,shared.ok);\r\n}<\/code><\/pre>\n
2\u3001\u547d\u4ee4\u5165\u961f<\/strong><\/p>\n
\u63a5\u7740\uff0c\u7528\u6237\u53ef\u4ee5\u5728\u5ba2\u6237\u7aef\u8f93\u5165\u5f53\u524d\u4e8b\u52a1\u8981\u6267\u884c\u7684\u591a\u4e2a\u547d\u4ee4\u3002<\/p>\n
\u5f53\u5ba2\u6237\u7aef\u5207\u6362\u5230\u4e8b\u52a1\u72b6\u6001\u65f6\uff0c\u670d\u52a1\u5668\u4f1a\u6839\u636e\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u547d\u4ee4\u6765\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\u3002<\/p>\n
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  • \u5982\u679c\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u547d\u4ee4\u4e3a EXEC\u3001DISCARD\u3001WATCH\u3001MULTI \u56db\u4e2a\u547d\u4ee4\u7684\u5176\u4e2d\u4e00\u4e2a\uff0c\u90a3\u4e48\u670d\u52a1\u5668\u7acb\u5373\u6267\u884c\u8fd9\u4e2a\u547d\u4ee4\u3002<\/li>\n
  • \u4e0e\u6b64\u76f8\u53cd\uff0c\u5982\u679c\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u547d\u4ee4\u662f EXEC\u3001DISCARD\u3001WATCH\u3001MULTI \u56db\u4e2a\u547d\u4ee4\u4ee5\u5916\u7684\u5176\u4ed6\u547d\u4ee4\uff0c\u90a3\u4e48\u670d\u52a1\u5668\u5e76\u4e0d\u7acb\u5373\u6267\u884c\u8fd9\u4e2a\u547d\u4ee4\u3002\n
      \n
    • \u9996\u5148\u68c0\u67e5\u6b64\u547d\u4ee4\u7684\u683c\u5f0f\u662f\u5426\u6b63\u786e\uff0c\u5982\u679c\u4e0d\u6b63\u786e\uff0c\u670d\u52a1\u5668\u4f1a\u5728\u5ba2\u6237\u7aef\u72b6\u6001\uff08redisClient\uff09\u7684 flags \u5c5e\u6027\u6253\u5f00 REDIS_MULTI \u6807\u8bc6\uff0c\u5e76\u4e14\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\u7ed9\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \u5982\u679c\u6b63\u786e\u5c06\u8fd9\u4e2a\u547d\u4ee4\u653e\u5165\u4e00\u4e2a\u4e8b\u52a1\u961f\u5217\u91cc\u9762\uff0c\u7136\u540e\u5411\u5ba2\u6237\u7aef\u8fd4\u56de QUEUED \u56de\u590d\u3002<\/li>\n<\/ul>\n
      \u6211\u4eec\u5148\u770b\u770b\u4e8b\u52a1\u961f\u5217\u662f\u5982\u4f55\u5b9e\u73b0\u7684<\/strong>\uff1f<\/p>\n
      \u6bcf\u4e2a Redis \u5ba2\u6237\u7aef\u90fd\u6709\u81ea\u5df1\u7684\u4e8b\u52a1\u72b6\u6001\uff0c\u5bf9\u5e94\u7684\u662f\u5ba2\u6237\u7aef\u72b6\u6001\uff08redisClient\uff09\u7684 mstate \u5c5e\u6027\u3002<\/p>\n
      typeof struct<\/span> redisClient<\/span>{<\/span>\r\n    \/\/ \u4e8b\u52a1\u72b6\u6001<\/span>\r\n    multiState mstate;\r\n}\r\nredisClient;<\/code><\/pre>\n
      \u4e8b\u52a1\u72b6\u6001\uff08mstate\uff09\u5305\u542b\u4e00\u4e2a\u4e8b\u52a1\u961f\u5217\uff08FIFO \u961f\u5217\uff09\uff0c\u4ee5\u53ca\u4e00\u4e2a\u5df2\u5165\u961f\u547d\u4ee4\u7684\u8ba1\u6570\u5668\u3002<\/p>\n
      \/*\r\n * \u4e8b\u52a1\u72b6\u6001\r\n *\/<\/span>\r\ntypedef<\/span> struct<\/span> multiState<\/span> {<\/span>\r\n    \/\/ \u4e8b\u52a1\u961f\u5217\uff0cFIFO \u987a\u5e8f<\/span>\r\n    multiCmd *commands;\r\n    \/* Array of MULTI commands *\/<\/span>\r\n    \/\/ \u5df2\u5165\u961f\u547d\u4ee4\u8ba1\u6570<\/span>\r\n    int<\/span> count;\r\n    \/* Total number of MULTI commands *\/<\/span>\r\n    int<\/span> minreplicas;\r\n    \/* MINREPLICAS for synchronous replication *\/<\/span>\r\n    time_t<\/span> minreplicas_timeout;\r\n    \/* MINREPLICAS timeout as unixtime. *\/<\/span>\r\n}\r\nmultiState;<\/code><\/pre>\n
      \u4e8b\u52a1\u961f\u5217\u662f\u4e00\u4e2a multiCmd \u7c7b\u578b\u6570\u7ec4\uff0c\u6570\u7ec4\u4e2d\u6bcf\u4e2a multiCmd \u7ed3\u6784\u90fd\u4fdd\u5b58\u4e86\u4e00\u4e2a\u5982\u5165\u961f\u547d\u4ee4\u7684\u76f8\u5173\u4fe1\u606f\uff1a\u6307\u5411\u547d\u4ee4\u5b9e\u73b0\u51fd\u6570\u7684\u6307\u9488\uff0c\u547d\u4ee4\u7684\u53c2\u6570\uff0c\u4ee5\u53ca\u53c2\u6570\u7684\u6570\u91cf\u3002<\/p>\n
      \/*\r\n * \u4e8b\u52a1\u547d\u4ee4\r\n *\/<\/span>\r\ntypedef<\/span> struct<\/span> multiCmd<\/span> {<\/span>\r\n    \/\/ \u53c2\u6570<\/span>\r\n    robj **argv;\r\n    \/\/ \u53c2\u6570\u6570\u91cf<\/span>\r\n    int<\/span> argc;\r\n    \/\/ \u547d\u4ee4\u6307\u9488<\/span>\r\n    struct<\/span> redisCommand<\/span> *cmd<\/span>;<\/span>\r\n}\r\nmultiCmd;<\/code><\/pre>\n
      \u6700\u540e\u6211\u4eec\u518d\u770b\u770b\u5165\u961f\u5217\u7684\u6e90\u7801<\/strong>\uff1a<\/p>\n
      \/* Add a new command into the MULTI commands queue \r\n *\r\n * \u5c06\u4e00\u4e2a\u65b0\u547d\u4ee4\u6dfb\u52a0\u5230\u4e8b\u52a1\u961f\u5217\u4e2d\r\n *\/<\/span>\r\nvoid queueMultiCommand(redisClient *c) {\r\n    multiCmd *mc;\r\n    int j;\r\n    \/\/ \u4e3a\u65b0\u6570\u7ec4\u5143\u7d20\u5206\u914d\u7a7a\u95f4<\/span>\r\n    c->mstate.commands = zrealloc(c->mstate.commands,\r\n                sizeof(multiCmd)*(c->mstate.count+1<\/span>));\r\n    \/\/ \u6307\u5411\u65b0\u5143\u7d20<\/span>\r\n    mc = c->mstate.commands+c->mstate.count;\r\n    \/\/ \u8bbe\u7f6e\u4e8b\u52a1\u7684\u547d\u4ee4\u3001\u547d\u4ee4\u53c2\u6570\u6570\u91cf\uff0c\u4ee5\u53ca\u547d\u4ee4\u7684\u53c2\u6570<\/span>\r\n    mc->cmd = c->cmd;\r\n    mc->argc = c->argc;\r\n    mc->argv = zmalloc(sizeof(robj*)*c->argc);\r\n    memcpy(mc->argv,c->argv,sizeof(robj*)*c->argc);\r\n    for<\/span> (j = 0<\/span>; j < c->argc; j++)\r\n            incrRefCount(mc->argv[j]);\r\n    \/\/ \u4e8b\u52a1\u547d\u4ee4\u6570\u91cf\u8ba1\u6570\u5668\u589e\u4e00<\/span>\r\n    c->mstate.count++;\r\n}<\/code><\/pre>\n
      \u5f53\u7136\u4e86\uff0c\u8fd8\u6709\u6211\u4eec\u4e0a\u9762\u63d0\u5230\u7684\uff0c\u5982\u679c\u547d\u4ee4\u5165\u961f\u51fa\u9519\u65f6\uff0c\u4f1a\u6253\u5f00\u5ba2\u6237\u7aef\u72b6\u6001\u7684 REDIS_DIRTY_EXEC \u6807\u8bc6\u3002<\/p>\n
      \/* Flag the transacation as DIRTY_EXEC so that EXEC will fail.\r\n *\r\n * \u5c06\u4e8b\u52a1\u72b6\u6001\u8bbe\u4e3a DIRTY_EXEC \uff0c\u8ba9\u4e4b\u540e\u7684 EXEC \u547d\u4ee4\u5931\u8d25\u3002\r\n *\r\n * Should be called every time there is an error while queueing a command. \r\n *\r\n * \u6bcf\u6b21\u5728\u5165\u961f\u547d\u4ee4\u51fa\u9519\u65f6\u8c03\u7528\r\n *\/<\/span>\r\nvoid flagTransaction(redisClient *c) {\r\n    if<\/span> (c->flags & REDIS_MULTI)\r\n            c->flags |= REDIS_DIRTY_EXEC;\r\n}<\/code><\/pre>\n
      3\u3001\u4e8b\u52a1\u6267\u884c<\/strong><\/p>\n
      \u5ba2\u6237\u7aef\u53d1\u9001 EXEC \u547d\u4ee4\uff0c\u670d\u52a1\u5668\u6267\u884c EXEC \u547d\u4ee4\u903b\u8f91\u3002<\/p>\n
        \n
      • \u5982\u679c\u5ba2\u6237\u7aef\u72b6\u6001\u7684 flags \u5c5e\u6027\u4e0d\u5305\u542b REDIS_MULTI \u6807\u8bc6\uff0c\u6216\u8005\u5305\u542b REDIS_DIRTY_CAS \u6216\u8005 REDIS_DIRTY_EXEC \u6807\u8bc6\uff0c\u90a3\u4e48\u5c31\u76f4\u63a5\u53d6\u6d88\u4e8b\u52a1\u7684\u6267\u884c\u3002<\/li>\n
      • \u5426\u5219\u5ba2\u6237\u7aef\u5904\u4e8e\u4e8b\u52a1\u72b6\u6001\uff08flags \u6709 REDIS_MULTI \u6807\u8bc6\uff09\uff0c\u670d\u52a1\u5668\u4f1a\u904d\u5386\u5ba2\u6237\u7aef\u7684\u4e8b\u52a1\u961f\u5217\uff0c\u7136\u540e\u6267\u884c\u4e8b\u52a1\u961f\u5217\u4e2d\u7684\u6240\u6709\u547d\u4ee4\uff0c\u6700\u540e\u5c06\u8fd4\u56de\u7ed3\u679c\u5168\u90e8\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1b\n
        void execCommand(redisClient *c) {\r\nint j;\r\nrobj **orig_argv;\r\nint orig_argc;\r\nstruct redisCommand *orig_cmd;\r\nint must_propagate = 0<\/span>;\r\n\/* Need to propagate MULTI\/EXEC to AOF \/ slaves? *\/<\/span>\r\n\/\/ \u5ba2\u6237\u7aef\u6ca1\u6709\u6267\u884c\u4e8b\u52a1<\/span>\r\nif<\/span> (!(c->flags & REDIS_MULTI)) {\r\n    addReplyError(c,\"EXEC without MULTI\"<\/span>);\r\n    return<\/span>;\r\n}\r\n\/* Check if we need to abort the EXEC because:\r\n *\r\n * \u68c0\u67e5\u662f\u5426\u9700\u8981\u963b\u6b62\u4e8b\u52a1\u6267\u884c\uff0c\u56e0\u4e3a\uff1a\r\n *\r\n * 1) Some WATCHed key was touched.\r\n *    \u6709\u88ab\u76d1\u89c6\u7684\u952e\u5df2\u7ecf\u88ab\u4fee\u6539\u4e86\r\n *\r\n * 2) There was a previous error while queueing commands.\r\n *    \u547d\u4ee4\u5728\u5165\u961f\u65f6\u53d1\u751f\u9519\u8bef\r\n *    \uff08\u6ce8\u610f\u8fd9\u4e2a\u884c\u4e3a\u662f 2.6.4 \u4ee5\u540e\u624d\u4fee\u6539\u7684\uff0c\u4e4b\u524d\u662f\u9759\u9ed8\u5904\u7406\u5165\u961f\u51fa\u9519\u547d\u4ee4\uff09\r\n *\r\n * A failed EXEC in the first case returns a multi bulk nil object\r\n * (technically it is not an error but a special behavior), while\r\n * in the second an EXECABORT error is returned. \r\n *\r\n * \u7b2c\u4e00\u79cd\u60c5\u51b5\u8fd4\u56de\u591a\u4e2a\u6279\u91cf\u56de\u590d\u7684\u7a7a\u5bf9\u8c61\r\n * \u800c\u7b2c\u4e8c\u79cd\u60c5\u51b5\u5219\u8fd4\u56de\u4e00\u4e2a EXECABORT \u9519\u8bef\r\n *\/<\/span>\r\nif<\/span> (c->flags & (REDIS_DIRTY_CAS|REDIS_DIRTY_EXEC)) {\r\n    addReply(c, c->flags & REDIS_DIRTY_EXEC ? shared.execaborterr :\r\n                                                      shared.nullmultibulk);\r\n    \/\/ \u53d6\u6d88\u4e8b\u52a1<\/span>\r\n    discardTransaction(c);\r\n    goto<\/span> handle_monitor;\r\n}\r\n\/* Exec all the queued commands *\/<\/span>\r\n\/\/ \u5df2\u7ecf\u53ef\u4ee5\u4fdd\u8bc1\u5b89\u5168\u6027\u4e86\uff0c\u53d6\u6d88\u5ba2\u6237\u7aef\u5bf9\u6240\u6709\u952e\u7684\u76d1\u89c6<\/span>\r\nunwatchAllKeys(c);\r\n\/* Unwatch ASAP otherwise we'll waste CPU cycles *\/<\/span>\r\n\/\/ \u56e0\u4e3a\u4e8b\u52a1\u4e2d\u7684\u547d\u4ee4\u5728\u6267\u884c\u65f6\u53ef\u80fd\u4f1a\u4fee\u6539\u547d\u4ee4\u548c\u547d\u4ee4\u7684\u53c2\u6570<\/span>\r\n\/\/ \u6240\u4ee5\u4e3a\u4e86\u6b63\u786e\u5730\u4f20\u64ad\u547d\u4ee4\uff0c\u9700\u8981\u73b0\u5907\u4efd\u8fd9\u4e9b\u547d\u4ee4\u548c\u53c2\u6570<\/span>\r\norig_argv = c->argv;\r\norig_argc = c->argc;\r\norig_cmd = c->cmd;\r\naddReplyMultiBulkLen(c,c->mstate.count);\r\n\/\/ \u6267\u884c\u4e8b\u52a1\u4e2d\u7684\u547d\u4ee4<\/span>\r\nfor<\/span> (j = 0<\/span>; j < c->mstate.count; j++) {\r\n    \/\/ \u56e0\u4e3a Redis \u7684\u547d\u4ee4\u5fc5\u987b\u5728\u5ba2\u6237\u7aef\u7684\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c<\/span>\r\n    \/\/ \u6240\u4ee5\u8981\u5c06\u4e8b\u52a1\u961f\u5217\u4e2d\u7684\u547d\u4ee4\u3001\u547d\u4ee4\u53c2\u6570\u7b49\u8bbe\u7f6e\u7ed9\u5ba2\u6237\u7aef<\/span>\r\n    c->argc = c->mstate.commands[j].argc;\r\n    c->argv = c->mstate.commands[j].argv;\r\n    c->cmd = c->mstate.commands[j].cmd;\r\n    \/* Propagate a MULTI request once we encounter the first write op.\r\n     *\r\n     * \u5f53\u9047\u4e0a\u7b2c\u4e00\u4e2a\u5199\u547d\u4ee4\u65f6\uff0c\u4f20\u64ad MULTI \u547d\u4ee4\u3002\r\n     *\r\n     * This way we'll deliver the MULTI\/....\/EXEC block as a whole and\r\n     * both the AOF and the replication link will have the same consistency\r\n     * and atomicity guarantees. \r\n     *\r\n     * \u8fd9\u53ef\u4ee5\u786e\u4fdd\u670d\u52a1\u5668\u548c AOF \u6587\u4ef6\u4ee5\u53ca\u9644\u5c5e\u8282\u70b9\u7684\u6570\u636e\u4e00\u81f4\u6027\u3002\r\n     *\/<\/span>\r\n    if<\/span> (!must_propagate && !(c->cmd->flags & REDIS_CMD_READONLY)) {\r\n        \/\/ \u4f20\u64ad MULTI \u547d\u4ee4<\/span>\r\n        execCommandPropagateMulti(c);\r\n        \/\/ \u8ba1\u6570\u5668\uff0c\u53ea\u53d1\u9001\u4e00\u6b21<\/span>\r\n        must_propagate = 1<\/span>;\r\n    }\r\n    \/\/ \u6267\u884c\u547d\u4ee4<\/span>\r\n    call(c,REDIS_CALL_FULL);\r\n    \/* Commands may alter argc\/argv, restore mstate. *\/<\/span>\r\n    \/\/ \u56e0\u4e3a\u6267\u884c\u540e\u547d\u4ee4\u3001\u547d\u4ee4\u53c2\u6570\u53ef\u80fd\u4f1a\u88ab\u6539\u53d8<\/span>\r\n    \/\/ \u6bd4\u5982 SPOP \u4f1a\u88ab\u6539\u5199\u4e3a SREM<\/span>\r\n    \/\/ \u6240\u4ee5\u8fd9\u91cc\u9700\u8981\u66f4\u65b0\u4e8b\u52a1\u961f\u5217\u4e2d\u7684\u547d\u4ee4\u548c\u53c2\u6570<\/span>\r\n    \/\/ \u786e\u4fdd\u9644\u5c5e\u8282\u70b9\u548c AOF \u7684\u6570\u636e\u4e00\u81f4\u6027<\/span>\r\n    c->mstate.commands[j].argc = c->argc;\r\n    c->mstate.commands[j].argv = c->argv;\r\n    c->mstate.commands[j].cmd = c->cmd;\r\n}\r\n\/\/ \u8fd8\u539f\u547d\u4ee4\u3001\u547d\u4ee4\u53c2\u6570<\/span>\r\nc->argv = orig_argv;\r\nc->argc = orig_argc;\r\nc->cmd = orig_cmd;\r\n\/\/ \u6e05\u7406\u4e8b\u52a1\u72b6\u6001<\/span>\r\ndiscardTransaction(c);\r\n\/* Make sure the EXEC command will be propagated as well if MULTI\r\n * was already propagated. *\/<\/span>\r\n\/\/ \u5c06\u670d\u52a1\u5668\u8bbe\u4e3a\u810f\uff0c\u786e\u4fdd EXEC \u547d\u4ee4\u4e5f\u4f1a\u88ab\u4f20\u64ad<\/span>\r\nif<\/span> (must_propagate) server.dirty++;\r\nhandle_monitor:\r\n\/* Send EXEC to clients waiting data from MONITOR. We do it here\r\n * since the natural order of commands execution is actually:\r\n * MUTLI, EXEC, ... commands inside transaction ...\r\n * Instead EXEC is flagged as REDIS_CMD_SKIP_MONITOR in the command\r\n * table, and we do it here with correct ordering. *\/<\/span>\r\nif<\/span> (listLength(server.monitors) && !server.loading)\r\n        replicationFeedMonitors(c,server.monitors,c->db->id,c->argv,c->argc);\r\n}<\/code><\/pre>\n<\/li>\n<\/ul>\n
        \u4e8c\u3001\u4e3a\u4ec0\u4e48\u5f88\u591a\u4eba\u8bf4 Redis \u4e8b\u52a1\u4e3a\u4f55\u4e0d\u652f\u6301\u539f\u5b50\u6027?<\/h1>\n
        1\u3001Redis \u4e8b\u52a1\u4e0d\u652f\u6301\u4e8b\u52a1\u56de\u6eda\u673a\u5236<\/strong><\/p>\n
        Redis \u4e8b\u52a1\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u4e00\u4e2a\u547d\u4ee4\u6267\u884c\u51fa\u9519\uff0c\u90a3\u4e48\u5c31\u8fd4\u56de\u9519\u8bef\uff0c\u7136\u540e\u8fd8\u662f\u4f1a\u63a5\u7740\u7ee7\u7eed\u6267\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u3002<\/p>\n
        \u4e0b\u9762\u6211\u4eec\u6f14\u793a\u4e00\u4e0b\uff1a<\/p>\n
        \"\u9ad8\u9891Redis\u9762\u8bd5\u9898\u89e3\u6790\uff1aRedis<\/p>\n
        \u6b63\u662f\u56e0\u4e3a Redis \u4e8b\u52a1\u4e0d\u652f\u6301\u4e8b\u52a1\u56de\u6eda\u673a\u5236\uff0c\u5982\u679c\u4e8b\u52a1\u6267\u884c\u4e2d\u51fa\u73b0\u4e86\u547d\u4ee4\u6267\u884c\u9519\u8bef\uff08\u4f8b\u5982\u5bf9 String \u7c7b\u578b\u7684\u6570\u636e\u5e93\u952e\u6267\u884c LPUSH \u64cd\u4f5c\uff09\uff0c\u53ea\u4f1a\u8fd4\u56de\u5f53\u524d\u547d\u4ee4\u6267\u884c\u7684\u9519\u8bef\u7ed9\u5ba2\u6237\u7aef\uff0c\u5e76\u4e0d\u4f1a\u5f71\u54cd\u4e0b\u9762\u7684\u547d\u4ee4\u7684\u6267\u884c\u3002\u6240\u4ee5\u5f88\u591a\u4eba\u89c9\u5f97\u548c\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff08MySQL\uff09 \u4e0d\u4e00\u6837\uff0c\u800c MySQL \u7684\u4e8b\u52a1\u662f\u5177\u6709\u539f\u5b50\u6027\u7684\uff0c\u6240\u4ee5\u5927\u5bb6\u90fd\u8ba4\u4e3a Redis \u4e8b\u52a1\u4e0d\u652f\u6301\u539f\u5b50\u6027\u3002<\/p>\n
        2\u3001\u4f46\u662f\u5176\u5b9e Redis \u610f\u4e49\u4e0a\u662f\u652f\u6301\u539f\u5b50\u6027\u7684<\/strong>\u3002<\/p>\n
        \u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u5b83\u4e5f\u662f\u8981\u4e0d\u6240\u6709\u547d\u4ee4\u6267\u884c\u6210\u529f\uff0c\u8981\u4e0d\u4e00\u4e2a\u547d\u4ee4\u90fd\u4e0d\u6267\u884c\u3002<\/p>\n
        \u6211\u4eec\u4e0b\u9762\u6f14\u793a\u4e00\u4e0b\uff1a<\/p>\n
        \u5168\u90e8\u6267\u884c\u6210\u529f\u7684\uff1a<\/p>\n
        \"\u9ad8\u9891Redis\u9762\u8bd5\u9898\u89e3\u6790\uff1aRedis<\/p>\n
        \u4e00\u4e2a\u90fd\u4e0d\u6267\u884c\uff1a<\/p>\n
        \"\u9ad8\u9891Redis\u9762\u8bd5\u9898\u89e3\u6790\uff1aRedis<\/p>\n
        \u8fd9\u5c31\u662f\u4e0a\u9762\u63d0\u5230\u7684\uff0c\u5728\u4e8b\u52a1\u5f00\u59cb\u540e\uff0c\u7528\u6237\u53ef\u4ee5\u8f93\u5165\u4e8b\u52a1\u8981\u6267\u884c\u7684\u547d\u4ee4\uff1b\u5728\u547d\u4ee4\u5165\u4e8b\u52a1\u961f\u5217\u524d\uff0c\u4f1a\u5bf9\u547d\u4ee4\u8fdb\u884c\u68c0\u67e5\uff0c\u5982\u679c\u547d\u4ee4\u4e0d\u5b58\u5728\u6216\u8005\u662f\u547d\u4ee4\u53c2\u6570\u4e0d\u5bf9\uff0c\u5219\u4f1a\u8fd4\u56de\u9519\u8bef\u53ef\u5ba2\u6237\u7aef\uff0c\u5e76\u4e14\u4fee\u6539\u5ba2\u6237\u7aef\u72b6\u6001\u3002<\/p>\n
        \u5f53\u540e\u9762\u5ba2\u6237\u7aef\u6267\u884c EXEC \u547d\u4ee4\u65f6\uff0c\u670d\u52a1\u5668\u5c31\u4f1a\u76f4\u63a5\u62d2\u7edd\u6267\u884c\u6b64\u4e8b\u52a1\u4e86\u3002<\/p>\n
        \u6240\u4ee5\u8bf4\uff0cRedis \u4e8b\u52a1\u5176\u5b9e\u662f\u652f\u6301\u539f\u5b50\u6027\u7684\uff01\u5373\u4f7f Redis \u4e0d\u652f\u6301\u4e8b\u52a1\u56de\u6eda\u673a\u5236\uff0c\u4f46\u662f\u5b83\u4f1a\u68c0\u67e5\u6bcf\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u7684\u547d\u4ee4\u662f\u5426\u9519\u8bef\u3002<\/p>\n
        \u4f46\u662f\u6211\u4eec\u8981\u6ce8\u610f\u4e00\u4e2a\u70b9\u5c31\u662f\uff1aRedis \u4e8b\u52a1\u4e0d\u652f\u6301\u68c0\u67e5\u90a3\u4e9b\u7a0b\u5e8f\u5458\u81ea\u5df1\u903b\u8f91\u9519\u8bef\u3002\u4f8b\u5982\u5bf9 String \u7c7b\u578b\u7684\u6570\u636e\u5e93\u952e\u6267\u884c\u5bf9 HashMap \u7c7b\u578b\u7684\u64cd\u4f5c\uff01<\/p>\n
        \u6211\u5f88\u8d5e\u540c Redis \u4f5c\u8005\u7684\u60f3\u6cd5<\/strong>\uff1a<\/p>\n
        \u9996\u5148\uff0cMySQL \u548c Redis \u7684\u5b9a\u4f4d\u4e0d\u4e00\u6837\uff0c\u4e00\u4e2a\u662f\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u4e00\u4e2a\u662f NoSQL\u3002<\/p>\n
        MySQL \u7684 SQL \u67e5\u8be2\u662f\u53ef\u4ee5\u76f8\u5f53\u590d\u6742\u7684\uff0c\u800c\u4e14 MySQL \u6ca1\u6709\u4e8b\u52a1\u961f\u5217\u8fd9\u79cd\u8bf4\u6cd5\uff0cSQL \u771f\u6b63\u5f00\u59cb\u6267\u884c\u624d\u4f1a\u8fdb\u884c\u5206\u6790\u548c\u68c0\u67e5\uff0cMySQL \u4e0d\u53ef\u80fd\u63d0\u524d\u77e5\u9053\u4e0b\u4e00\u6761 SQL \u662f\u5426\u6b63\u786e\u3002\u6240\u4ee5\u652f\u6301\u4e8b\u52a1\u56de\u6eda\u662f\u975e\u5e38\u6709\u5fc5\u8981\u7684~<\/p>\n
        \u4f46\u662f\uff0cRedis \u4f7f\u7528\u4e86\u4e8b\u52a1\u961f\u5217\u6765\u9884\u5148\u5c06\u6267\u884c\u547d\u4ee4\u5b58\u50a8\u8d77\u6765\uff0c\u5e76\u4e14\u4f1a\u5bf9\u5176\u8fdb\u884c\u683c\u5f0f\u68c0\u67e5\u7684\uff0c\u63d0\u524d\u5c31\u77e5\u9053\u547d\u4ee4\u662f\u5426\u53ef\u6267\u884c\u4e86\u3002\u6240\u4ee5\u5982\u679c\u53ea\u8981\u6709\u4e00\u4e2a\u547d\u4ee4\u662f\u9519\u8bef\u7684\uff0c\u90a3\u4e48\u8fd9\u4e2a\u4e8b\u52a1\u662f\u4e0d\u80fd\u6267\u884c\u7684\u3002<\/p>\n
        Redis \u4f5c\u8005\u8ba4\u4e3a\u57fa\u672c\u53ea\u4f1a\u51fa\u73b0\u5728\u5f00\u53d1\u73af\u5883\u7684\u7f16\u7a0b\u9519\u8bef\u5176\u5b9e\u5728\u751f\u4ea7\u73af\u5883\u57fa\u672c\u662f\u4e0d\u53ef\u80fd\u51fa\u73b0\u7684\uff08\u4f8b\u5982\u5bf9 String \u7c7b\u578b\u7684\u6570\u636e\u5e93\u952e\u6267\u884c LPUSH \u64cd\u4f5c\uff09\uff0c\u6240\u4ee5\u4ed6\u89c9\u5f97\u6ca1\u5fc5\u8981\u4e3a\u4e86\u8fd9\u4e8b\u52a1\u56de\u6eda\u673a\u5236\u800c\u6539\u53d8 Redis \u8ffd\u6c42\u7b80\u5355\u9ad8\u6548\u7684\u8bbe\u8ba1\u4e3b\u65e8<\/strong>\u3002<\/p>\n<\/div>\n<\/div>\n
        \u00a9\u8457\u4f5c\u6743\u5f52\u4f5c\u8005\u6240\u6709\uff1a\u6765\u81ea51CTO\u535a\u5ba2\u4f5c\u8005wx5e9fc52a5db79\u7684\u539f\u521b\u4f5c\u54c1\uff0c\u5982\u9700\u8f6c\u8f7d\uff0c\u8bf7\u6ce8\u660e\u51fa\u5904\uff0c\u5426\u5219\u5c06\u8ffd\u7a76\u6cd5\u5f8b\u8d23\u4efb<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
        \u539f\u6587\u5730\u5740 \u4e00\u3001Redis \u4e8b\u52a1\u7684\u5b9e\u73b0\u539f\u7406<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[118],"class_list":["post-5020","post","type-post","status-publish","format-standard","hentry","tag-02-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/5020","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=5020"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/5020\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=5020"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=5020"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=5020"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}