{"id":201915,"date":"2025-05-10T10:32:48","date_gmt":"2025-05-10T02:32:48","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201915\/"},"modified":"2025-05-10T10:32:48","modified_gmt":"2025-05-10T02:32:48","slug":"redis%e5%ae%9e%e7%8e%b0%e9%99%90%e6%b5%81%e7%ae%97%e6%b3%95%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201915\/","title":{"rendered":"Redis\u5b9e\u73b0\u9650\u6d41\u7b97\u6cd5\u8be6\u89e3"},"content":{"rendered":"

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

Redis\u5b9e\u73b0\u9650\u6d41\u7b97\u6cd5\u8be6\u89e3<\/h1>\n

\u6570\u636e\u5e93<\/span>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300aRedis\u5b9e\u73b0\u9650\u6d41\u7b97\u6cd5\u8be6\u89e3\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

\u5728\u4e92\u8054\u7f51\u5e94\u7528\u4e2d\uff0c\u9650\u6d41\u662f\u4e00\u9879\u975e\u5e38\u91cd\u8981\u7684\u6280\u672f\u624b\u6bb5\uff0c\u5b83\u53ef\u4ee5\u5e73\u6ed1\u5904\u7406\u9ad8\u5e76\u53d1\u6d41\u91cf\uff0c\u5e76\u4fdd\u8bc1\u670d\u52a1\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u7528\u6027\u3002\u800cRedis\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u3001\u5206\u5e03\u5f0f\u7684NoSQL\u6570\u636e\u5e93\uff0c\u5b83\u7684\u4e00\u4e9b\u7279\u6027\u53ef\u4ee5\u5f88\u597d\u5730\u652f\u6301\u9650\u6d41\u7b97\u6cd5\u7684\u5b9e\u73b0\uff0c\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdRedis\u5728\u9650\u6d41\u65b9\u9762\u7684\u5e94\u7528\u3002<\/p>\n

    \n
  1. \u4ee4\u724c\u6876\u7b97\u6cd5<\/li>\n<\/ol>\n

    \u4ee4\u724c\u6876\u7b97\u6cd5\u662f\u4e00\u79cd\u6bd4\u8f83\u5e38\u89c1\u7684\u9650\u6d41\u7b97\u6cd5\uff0c\u5b83\u57fa\u4e8e\u4e00\u4e2a\u6876\u548c\u4e00\u4e2a\u4ee4\u724c\u751f\u6210\u5668\u3002\u6876\u4e2d\u5b58\u653e\u4e00\u5b9a\u6570\u91cf\u7684\u4ee4\u724c\uff0c\u6bcf\u4e2a\u4ee4\u724c\u4ee3\u8868\u4e00\u4e2a\u8bf7\u6c42\uff0c\u800c\u4ee4\u724c\u751f\u6210\u5668\u5219\u4ee5\u4e00\u5b9a\u901f\u7387\u751f\u6210\u4ee4\u724c\u5e76\u6dfb\u52a0\u5230\u6876\u4e2d\u3002\u5f53\u4e00\u4e2a\u8bf7\u6c42\u5230\u6765\u65f6\uff0c\u5982\u679c\u6876\u4e2d\u6709\u4ee4\u724c\uff0c\u5219\u5141\u8bb8\u8bf7\u6c42\u901a\u8fc7\uff0c\u5e76\u4ece\u6876\u4e2d\u6d88\u8017\u4e00\u4e2a\u4ee4\u724c\uff0c\u5426\u5219\u62d2\u7edd\u8bf7\u6c42\u3002<\/p>\n

    \u4ee4\u724c\u6876\u7b97\u6cd5\u7684\u6838\u5fc3\u601d\u60f3\u662f\u901a\u8fc7\u6876\u4e2d\u4ee4\u724c\u7684\u6570\u91cf\u6765\u9650\u5236\u8bf7\u6c42\u7684\u5e76\u53d1\u91cf\uff0c\u800c\u4ee4\u724c\u751f\u6210\u5668\u5219\u53ef\u4ee5\u63a7\u5236\u8bf7\u6c42\u7684\u5904\u7406\u901f\u7387\u3002\u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u6709\u5e8f\u96c6\u5408\u6765\u5b9e\u73b0\u4ee4\u724c\u6876\u7b97\u6cd5\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5c06\u6709\u5e8f\u96c6\u5408\u4e2d\u7684\u6210\u5458\u8868\u793a\u4e3a\u4ee4\u724c\uff0c\u5176\u5206\u503c\u8868\u793a\u4ee4\u724c\u7684\u5230\u671f\u65f6\u95f4\u6233\uff0c\u5f53\u6709\u8bf7\u6c42\u5230\u6765\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528ZREVRANGEBYSCORE\u547d\u4ee4\u83b7\u53d6\u5230\u5f53\u524d\u6876\u4e2d\u672a\u8fc7\u671f\u7684\u4ee4\u724c\u6570\u91cf\u3002<\/p>\n

      \n
    1. \u6f0f\u6876\u7b97\u6cd5<\/li>\n<\/ol>\n

      \u6f0f\u6876\u7b97\u6cd5\u4e5f\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u9650\u6d41\u7b97\u6cd5\uff0c\u5b83\u4e0e\u4ee4\u724c\u6876\u7b97\u6cd5\u7684\u533a\u522b\u5728\u4e8e\uff0c\u6f0f\u6876\u7b97\u6cd5\u4e0d\u4f1a\u50cf\u4ee4\u724c\u6876\u7b97\u6cd5\u90a3\u6837\u5b9a\u671f\u751f\u6210\u4ee4\u724c\uff0c\u800c\u662f\u4fdd\u6301\u4e00\u4e2a\u6052\u5b9a\u7684\u6d41\u51fa\u901f\u7387\uff0c\u5e76\u4e14\u5c06\u8bf7\u6c42\u5747\u5300\u5730\u5206\u914d\u5230\u4e0d\u540c\u7684\u65f6\u95f4\u6bb5\u5185\u3002\u8fd9\u6837\u53ef\u4ee5\u6709\u6548\u5e73\u6ed1\u5904\u7406\u8bf7\u6c42\u6d41\u91cf\uff0c\u9632\u6b62\u7a81\u53d1\u8bf7\u6c42\u5f15\u8d77\u670d\u52a1\u7684\u4e0d\u7a33\u5b9a\u3002<\/p>\n

      \u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2azset\u6765\u6a21\u62df\u6f0f\u6876\uff0c\u5176\u4e2d\u6bcf\u4e2a\u6210\u5458\u8868\u793a\u8bf7\u6c42\uff0c\u5176\u5206\u503c\u8868\u793a\u8bf7\u6c42\u5230\u8fbe\u7684\u65f6\u95f4\u6233\u3002\u5f53\u6709\u65b0\u8bf7\u6c42\u5230\u6765\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528ZREVRANGE\u547d\u4ee4\u83b7\u53d6\u5f53\u524d\u6f0f\u6876\u4e2d\u7684\u8bf7\u6c42\u6570\u91cf\uff0c\u5224\u65ad\u662f\u5426\u5141\u8bb8\u65b0\u8bf7\u6c42\u901a\u8fc7\u3002\u5982\u679c\u5141\u8bb8\u901a\u8fc7\uff0c\u5219\u5c06\u65b0\u8bf7\u6c42\u6dfb\u52a0\u5230zset\u4e2d\uff0c\u5e76\u4f7f\u7528ZREMRANGEBYSCORE\u547d\u4ee4\u5c06\u8fc7\u671f\u7684\u8bf7\u6c42\u4ecezset\u4e2d\u5220\u9664\u3002<\/p>\n

        \n
      1. \u8ba1\u6570\u5668\u7b97\u6cd5<\/li>\n<\/ol>\n

        \u8ba1\u6570\u5668\u7b97\u6cd5\u662f\u4e00\u79cd\u7b80\u5355\u7c97\u66b4\u7684\u9650\u6d41\u7b97\u6cd5\uff0c\u5b83\u57fa\u4e8e\u4e00\u4e2a\u8ba1\u6570\u5668\u548c\u4e00\u4e2a\u65f6\u95f4\u7a97\u53e3\uff0c\u5f53\u65f6\u95f4\u7a97\u53e3\u5185\u7684\u8bf7\u6c42\u6570\u8fbe\u5230\u4e00\u5b9a\u9608\u503c\u65f6\uff0c\u5219\u62d2\u7edd\u540e\u7eed\u8bf7\u6c42\u3002\u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u8ba1\u6570\u5668\u548c\u4e00\u4e2a\u8fc7\u671f\u65f6\u95f4\u6765\u5b9e\u73b0\u8ba1\u6570\u5668\u7b97\u6cd5\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7INCR\u547d\u4ee4\u5bf9\u8ba1\u6570\u5668\u8fdb\u884c\u81ea\u589e\u64cd\u4f5c\uff0c\u5f53\u8ba1\u6570\u5668\u8d85\u8fc7\u6307\u5b9a\u9608\u503c\u65f6\uff0c\u5373\u8868\u793a\u8bf7\u6c42\u8fc7\u591a\uff0c\u9700\u8981\u62d2\u7edd\u3002<\/p>\n

          \n
        1. Lua\u811a\u672c\u5b9e\u73b0<\/li>\n<\/ol>\n

          \u9664\u4e86\u4e0a\u8ff0\u4e09\u79cd\u5e38\u89c1\u7684\u9650\u6d41\u7b97\u6cd5\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528Lua\u811a\u672c\u6765\u5b9e\u73b0\u81ea\u5b9a\u4e49\u9650\u6d41\u7b97\u6cd5\u3002Lua\u811a\u672c\u53ef\u4ee5\u8bbf\u95eeRedis\u7684\u6570\u636e\u7ed3\u6784\u548c\u547d\u4ee4\uff0c\u5177\u6709\u5f88\u5f3a\u7684\u7075\u6d3b\u6027\u548c\u6269\u5c55\u6027\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5728Lua\u811a\u672c\u4e2d\u5b9e\u73b0\u4e00\u4e2a\u57fa\u4e8e\u65f6\u95f4\u7a97\u53e3\u548c\u6f0f\u6876\u7b97\u6cd5\u7684\u9650\u6d41\u5668\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

          local limit_key = KEYS[1]\nlocal limit = tonumber(ARGV[1])\nlocal interval = tonumber(ARGV[2])\nlocal current_time = tonumber(redis.call('TIME')[1])\nlocal current_count = #redis.call('zrangebyscore', limit_key, '-inf', '+inf')\nredis.call('zremrangebyscore', limit_key, '-inf', current_time - interval)\nif current_count < limit then\nredis.call('zadd', limit_key, current_time, current_time)\nreturn 1\nelse\nreturn 0\nend<\/pre>\n
          \u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0climit_key\u8868\u793a\u6f0f\u6876\u7684\u540d\u79f0\uff0climit\u8868\u793a\u8be5\u6f0f\u6876\u53ef\u4ee5\u5bb9\u7eb3\u7684\u6700\u5927\u8bf7\u6c42\u6570\u91cf\uff0cinterval\u8868\u793a\u65f6\u95f4\u7a97\u53e3\u7684\u5927\u5c0f\uff08\u4ee5\u79d2\u4e3a\u5355\u4f4d\uff09\uff0ccurrent_time\u8868\u793a\u5f53\u524d\u65f6\u95f4\u6233\u3002\u9996\u5148\uff0c\u811a\u672c\u4f1a\u4f7f\u7528zrangebyscore\u547d\u4ee4\u83b7\u53d6\u5f53\u524d\u6f0f\u6876\u4e2d\u672a\u8fc7\u671f\u7684\u8bf7\u6c42\u6570\u91cf\u3002\u7136\u540e\uff0c\u4f7f\u7528zremrangebyscore\u547d\u4ee4\u5220\u9664\u8fc7\u671f\u7684\u8bf7\u6c42\u3002\u63a5\u7740\uff0c\u5224\u65ad\u6f0f\u6876\u4e2d\u7684\u8bf7\u6c42\u6570\u91cf\u662f\u5426\u5df2\u7ecf\u8fbe\u5230\u4e0a\u9650\uff0c\u5982\u679c\u672a\u8fbe\u5230\u4e0a\u9650\uff0c\u5219\u4f7f\u7528zadd\u547d\u4ee4\u5c06\u65b0\u8bf7\u6c42\u6dfb\u52a0\u5230\u6f0f\u6876\u4e2d\uff0c\u5e76\u8fd4\u56de\u5141\u8bb8\u901a\u8fc7\u7684\u6807\u5fd7\u4f4d\u3002\u5426\u5219\uff0c\u8fd4\u56de\u62d2\u7edd\u901a\u8fc7\u7684\u6807\u5fd7\u4f4d\u3002\u6700\u540e\uff0c\u5728\u4e1a\u52a1\u5904\u7406\u65f6\uff0c\u9700\u8981\u5c06\u8be5\u811a\u672c\u4e0eEVALSHA\u547d\u4ee4\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u907f\u514d\u91cd\u590d\u7f16\u8bd1Lua\u4ee3\u7801\u7684\u5f00\u9500\u3002<\/p>\n
          \u603b\u7ed3<\/p>\n
          \u9650\u6d41\u662f\u4e92\u8054\u7f51\u5e94\u7528\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u4e00\u9879\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u5e73\u6ed1\u5904\u7406\u9ad8\u5e76\u53d1\u6d41\u91cf\uff0c\u5e76\u4fdd\u8bc1\u670d\u52a1\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u7528\u6027\u3002\u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee4\u724c\u6876\u7b97\u6cd5\u3001\u6f0f\u6876\u7b97\u6cd5\u3001\u8ba1\u6570\u5668\u7b97\u6cd5\u7b49\u5e38\u89c1\u9650\u6d41\u7b97\u6cd5\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528Lua\u811a\u672c\u81ea\u5b9a\u4e49\u9650\u6d41\u5668\u3002\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u8bf7\u6c42\u6d41\u91cf\uff0c\u4fdd\u8bc1\u670d\u52a1\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n
          \n
          \n <\/dt>\n
          \n   Golang\u4e2d\u7684LRU\u7f13\u5b58\u7b97\u6cd5\u8be6\u7ec6\u89e3\u6790\u3002\n <\/dd>\n<\/dl>\n
          \n
          \n <\/dt>\n
          \n   MySQL\u6570\u636e\u5e93\u548cGo\u8bed\u8a00\uff1a\u5982\u4f55\u8fdb\u884c\u6570\u636e\u5185\u90e8\u591a\u7ef4\u5ea6\u805a\u5408\u5904\u7406\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
          Redis\u5b9e\u73b0\u9650\u6d41\u7b97\u6cd5\u8be6\u89e3 \u6570\u636e...<\/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-201915","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201915","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=201915"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201915\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}