{"id":201802,"date":"2025-05-10T08:57:16","date_gmt":"2025-05-10T00:57:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201802\/"},"modified":"2025-05-10T08:57:16","modified_gmt":"2025-05-10T00:57:16","slug":"redis%e4%b8%ad%e7%9a%84bigkey%e9%97%ae%e9%a2%98%e6%8e%92%e6%9f%a5%e4%b8%8e%e8%a7%a3%e5%86%b3%e6%80%9d%e8%b7%af%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201802\/","title":{"rendered":"Redis\u4e2d\u7684BigKey\u95ee\u9898\u6392\u67e5\u4e0e\u89e3\u51b3\u601d\u8def\u8be6\u89e3"},"content":{"rendered":"

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

Redis\u4e2d\u7684BigKey\u95ee\u9898\u6392\u67e5\u4e0e\u89e3\u51b3\u601d\u8def\u8be6\u89e3<\/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\u300aRedis\u4e2d\u7684BigKey\u95ee\u9898\u6392\u67e5\u4e0e\u89e3\u51b3\u601d\u8def\u8be6\u89e3\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

\u6458\u8981<\/h2>\n

Redis\u662f\u4e00\u6b3e\u6027\u80fd\u5f3a\u52b2\u7684\u5185\u5b58\u6570\u636e\u5e93\uff0c\u4f46\u662f\u5728\u4f7f\u7528\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u4f1a\u9047\u5230Big Key<\/strong>\u95ee\u9898\uff0c\u8fd9\u4e2a\u95ee\u9898\u5c31\u662fRedis\u4e2d\u67d0\u4e2akey\u7684value\u8fc7\u5927\uff0c\u6240\u4ee5Big Key\u95ee\u9898\u672c\u8d28\u662fBig Value\u95ee\u9898<\/strong>\uff0c\u5bfc\u81f4Redis\u7684\u6027\u80fd\u4e0b\u964d\u6216\u8005\u5d29\u6e83\u3002\u672c\u6587\u5c06\u5411\u5927\u5bb6\u4ecb\u7ecd\u5982\u4f55\u6392\u67e5\u548c\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n

Big Key\u95ee\u9898\u4ecb\u7ecd<\/h2>\n

\u5728Redis\u4e2d\uff0c\u6bcf\u4e2akey\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684value\uff0c\u5982\u679c\u67d0\u4e2akey\u7684value\u8fc7\u5927\uff0c\u5c31\u4f1a\u5bfc\u81f4Redis\u7684\u6027\u80fd\u4e0b\u964d\u6216\u8005\u5d29\u6e83\uff0c\u6bd4\u7384\u5b66\u66f4\u7384\u5b66\uff0c\u56e0\u4e3aRedis\u9700\u8981\u5c06\u5927key\u5168\u90e8\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\uff0c\u8fd9\u4f1a\u5360\u7528\u5927\u91cf\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u4f1a\u964d\u4f4eRedis\u7684\u54cd\u5e94\u901f\u5ea6\uff0c\u8fd9\u4e2a\u95ee\u9898\u88ab\u79f0\u4e3aBig Key\u95ee\u9898<\/strong>\u3002\u4e0d\u8981\u5c0f\u770b\u8fd9\u4e2a\u95ee\u9898\uff0c\u5b83\u53ef\u662f\u80fd\u8ba9\u4f60\u7684Redis\u77ac\u95f4\u53d8\u6210\u201c\u4e4c\u9f9f\u201d\uff0c\u7531\u4e8eRedis\u5355\u7ebf\u7a0b\u7684\u7279\u6027\uff0c\u64cd\u4f5cBig Key\u7684\u901a\u5e38\u6bd4\u8f83\u8017\u65f6\uff0c\u4e5f\u5c31\u610f\u5473\u7740\u963b\u585eRedis\u53ef\u80fd\u6027\u8d8a\u5927\uff0c\u8fd9\u6837\u4f1a\u9020\u6210\u5ba2\u6237\u7aef\u963b\u585e\u6216\u8005\u5f15\u8d77\u6545\u969c\u5207\u6362\uff0c\u6709\u53ef\u80fd\u5bfc\u81f4\u201c\u6162\u67e5\u8be2\u201d\u3002<\/p>\n

\u4e00\u822c\u800c\u8a00\uff0c\u4e0b\u9762\u8fd9\u4e24\u79cd\u60c5\u51b5\u88ab\u79f0\u4e3a\u5927 key\uff1a<\/p>\n

    \n
  • String \u7c7b\u578b\u7684 key \u5bf9\u5e94\u7684value\u8d85\u8fc7 10 MB\u3002<\/li>\n
  • list\u3001set\u3001hash\u3001zset\u7b49\u96c6\u5408\u7c7b\u578b\uff0c\u96c6\u5408\u5143\u7d20\u4e2a\u6570\u8d85\u8fc7 5000\u4e2a\u3002<\/li>\n<\/ul>\n
    \n

    \u4ee5\u4e0a\u5bf9 Big Key \u7684\u5224\u65ad\u6807\u51c6\u5e76\u4e0d\u662f\u552f\u4e00\uff0c\u53ea\u662f\u4e00\u4e2a\u5927\u4f53\u7684\u6807\u51c6\u3002\u5728\u5b9e\u9645\u4e1a\u52a1\u5f00\u53d1\u4e2d\uff0c\u5bf9 Big Key\u7684\u5224\u65ad\u662f\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u4f7f\u7528\u573a\u666f\u505a\u4e0d\u540c\u7684\u5224\u65ad\u3002\u6bd4\u5982\u64cd\u4f5c\u67d0\u4e2a key \u5bfc\u81f4\u8bf7\u6c42\u54cd\u5e94\u65f6\u95f4\u53d8\u6162\uff0c\u90a3\u4e48\u8fd9\u4e2a key \u5c31\u53ef\u4ee5\u5224\u5b9a\u6210 Big Key\u3002<\/p>\n<\/blockquote>\n

    \u5728Redis\u4e2d\uff0c\u5927key\u901a\u5e38\u662f\u7531\u4ee5\u4e0b\u51e0\u79cd\u539f\u56e0\u5bfc\u81f4\u7684<\/strong>\uff1a<\/p>\n

      \n
    • \u5bf9\u8c61\u5e8f\u5217\u5316\u540e\u7684\u5927\u5c0f\u8fc7\u5927<\/li>\n
    • \u5b58\u50a8\u5927\u91cf\u6570\u636e\u7684\u5bb9\u5668\uff0c\u5982set\u3001list\u7b49<\/li>\n
    • \u5927\u578b\u6570\u636e\u7ed3\u6784\uff0c\u5982bitmap\u3001hyperloglog\u7b49<\/li>\n<\/ul>\n

      \u5982\u679c\u4e0d\u53ca\u65f6\u5904\u7406\u8fd9\u4e9b\u5927key\uff0c\u5b83\u4eec\u4f1a\u9010\u6e10\u6d88\u8017Redis\u670d\u52a1\u5668\u7684\u5185\u5b58\u8d44\u6e90\uff0c\u6700\u7ec8\u5bfc\u81f4Redis\u5d29\u6e83\u3002<\/p>\n

      Big Key\u95ee\u9898\u6392\u67e5<\/h2>\n

      \u5f53\u51fa\u73b0Redis\u6027\u80fd\u6025\u5267\u4e0b\u964d\u7684\u60c5\u51b5\u65f6\uff0c\u5f88\u53ef\u80fd\u662f\u7531\u4e8e\u5b58\u5728\u5927key\u5bfc\u81f4\u7684\u3002\u5728\u6392\u9664\u5927key\u95ee\u9898\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u91c7\u53d6\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n

      \u4f7f\u7528BIGKEYS\u547d\u4ee4<\/h3>\n

      Redis\u81ea\u5e26\u7684 BIGKEYS \u547d\u4ee4\u53ef\u4ee5\u67e5\u8be2\u5f53\u524dRedis\u4e2d\u6240\u6709key\u7684\u4fe1\u606f\uff0c\u5bf9\u6574\u4e2a\u6570\u636e\u5e93\u4e2d\u7684\u952e\u503c\u5bf9\u5927\u5c0f\u60c5\u51b5\u8fdb\u884c\u7edf\u8ba1\u5206\u6790\uff0c\u6bd4\u5982\u8bf4\uff0c\u7edf\u8ba1\u6bcf\u79cd\u6570\u636e\u7c7b\u578b\u7684\u952e\u503c\u5bf9\u4e2a\u6570\u4ee5\u53ca\u5e73\u5747\u5927\u5c0f\u3002\u6b64\u5916\uff0c\u8fd9\u4e2a\u547d\u4ee4\u6267\u884c\u540e\uff0c\u4f1a\u8f93\u51fa\u6bcf\u79cd\u6570\u636e\u7c7b\u578b\u4e2d\u6700\u5927\u7684 bigkey \u7684\u4fe1\u606f\uff0c\u5bf9\u4e8e String \u7c7b\u578b\u6765\u8bf4\uff0c\u4f1a\u8f93\u51fa\u6700\u5927 bigkey \u7684\u5b57\u8282\u957f\u5ea6\uff0c\u5bf9\u4e8e\u96c6\u5408\u7c7b\u578b\u6765\u8bf4\uff0c\u4f1a\u8f93\u51fa\u6700\u5927 bigkey \u7684\u5143\u7d20\u4e2a\u6570<\/p>\n

      BIGKEYS<\/code>\u547d\u4ee4\u4f1a\u626b\u63cf\u6574\u4e2a\u6570\u636e\u5e93\uff0c\u8fd9\u4e2a\u547d\u4ee4\u672c\u8eab\u4f1a\u963b\u585eRedis\uff0c\u627e\u51fa\u6240\u6709\u7684\u5927\u952e\uff0c\u5e76\u5c06\u5176\u4ee5\u4e00\u4e2a\u5217\u8868\u7684\u5f62\u5f0f\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n

      \u547d\u4ee4\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

      $ redis-cli --bigkeys<\/pre>\n
      \u8fd4\u56de\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n
      # Scanning the entire keyspace to find biggest keys as well as\n# average sizes per key type.  You can use -i 0.1 to sleep 0.1 sec\n# per 100 SCAN commands (not usually needed).\n\n[00.00%] Biggest string found so far 'a' with 3 bytes\n[05.14%] Biggest list   found so far 'b' with 100004 items\n[35.77%] Biggest string found so far 'c' with 6 bytes\n[73.91%] Biggest hash   found so far 'd' with 3 fields\n\n-------- summary -------\n\nSampled 506 keys in the keyspace!\nTotal key length in bytes is 3452 (avg len 6.82)\n\nBiggest string found 'c' has 6 bytes\nBiggest   list found 'b' has 100004 items\nBiggest   hash found 'd' has 3 fields\n\n504 strings with 1403 bytes (99.60% of keys, avg size 2.78)\n1 lists with 100004 items (00.20% of keys, avg size 100004.00)\n0 sets with 0 members (00.00% of keys, avg size 0.00)\n1 hashs with 3 fields (00.20% of keys, avg size 3.00)\n0 zsets with 0 members (00.00% of keys, avg size 0.00)<\/pre>\n
      \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u7531\u4e8eBIGKEYS<\/code>\u547d\u4ee4\u9700\u8981\u626b\u63cf\u6574\u4e2a\u6570\u636e\u5e93\uff0c\u6240\u4ee5\u5b83\u53ef\u80fd\u4f1a\u5bf9Redis\u5b9e\u4f8b\u9020\u6210\u4e00\u5b9a\u7684\u8d1f\u62c5\u3002\u5728\u6267\u884c\u8fd9\u4e2a\u547d\u4ee4\u4e4b\u524d\uff0c\u8bf7\u786e\u4fdd\u60a8\u7684Redis\u5b9e\u4f8b\u6709\u8db3\u591f\u7684\u8d44\u6e90\u6765\u5904\u7406\u5b83\uff0c\u5efa\u8bae\u5728\u4ece\u8282\u70b9\u6267\u884c<\/strong>\u3002<\/p>\n
      Debug Object<\/h3>\n
      \u5982\u679c\u6211\u4eec\u627e\u5230\u4e86Big Key\uff0c\u5c31\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u8fdb\u4e00\u6b65\u7684\u5206\u6790\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4debug object key<\/code>\u67e5\u770b\u67d0\u4e2akey\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5305\u62ec\u8be5key\u7684value\u5927\u5c0f\u7b49\u3002\u8fd9\u65f6\u5019\u4f60\u5c31\u53ef\u4ee5\u201c\u7aa5\u63a2\u201dRedis\u7684\u5185\u90e8\uff0c\u770b\u770b\u5230\u5e95\u662f\u54ea\u4e2akey\u592a\u5927\u4e86\u3002<\/p>\n
      Debug Object \u547d\u4ee4\u662f\u4e00\u4e2a\u8c03\u8bd5\u547d\u4ee4\uff0c\u5f53 key \u5b58\u5728\u65f6\uff0c\u8fd4\u56de\u6709\u5173\u4fe1\u606f\u3002 \u5f53 key \u4e0d\u5b58\u5728\u65f6\uff0c\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u3002<\/p>\n
      redis 127.0.0.1:6379> DEBUG OBJECT key\nValue at:0xb6838d20 refcount:1 encoding:raw serializedlength:9 lru:283790 lru_seconds_idle:150\n\nredis 127.0.0.1:6379> DEBUG OBJECT key\n(error) ERR no such key<\/pre>\n
      serializedlength\u8868\u793akey\u5bf9\u5e94\u7684value\u5e8f\u5217\u5316\u4e4b\u540e\u7684\u5b57\u8282\u6570<\/p>\n
      memory usage<\/h3>\n
      \u5728Redis4.0\u4e4b\u524d\uff0c\u53ea\u80fd\u901a\u8fc7DEBUG OBJECT\u547d\u4ee4\u4f30\u7b97key\u7684\u5185\u5b58\u4f7f\u7528(\u5b57\u6bb5serializedlength)\uff0c\u4f46DEBUG OBJECT\u547d\u4ee4\u662f\u6709\u8bef\u5dee\u7684\u3002<\/p>\n
      4.0\u7248\u672c\u53ca\u4ee5\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528memory usag\u547d\u4ee4\u3002<\/p>\n
      memory usage\u547d\u4ee4\u4f7f\u7528\u975e\u5e38\u7b80\u5355\uff0c\u76f4\u63a5\u6309memory usage key\u540d\u5b57\uff1b\u5982\u679c\u5f53\u524dkey\u5b58\u5728\uff0c\u5219\u8fd4\u56dekey\u7684value\u5b9e\u9645\u4f7f\u7528\u5185\u5b58\u4f30\u7b97\u503c\uff1b\u5982\u679ckey\u4e0d\u5b58\u5728\uff0c\u5219\u8fd4\u56denil\u3002<\/p>\n
      127.0.0.1:6379> set k1 value1\nOK\n127.0.0.1:6379> memory usage k1    \/\/\u8fd9\u91cck1 value\u5360\u752857\u5b57\u8282\u5185\u5b58\n(integer) 57\n127.0.0.1:6379> memory usage aaa  \/\/ aaa\u952e\u4e0d\u5b58\u5728\uff0c\u8fd4\u56denil.\n(nil)<\/pre>\n
      \u5bf9\u4e8e\u9664String\u7c7b\u578b\u4e4b\u5916\u7684\u7c7b\u578b\uff0cmemory usage\u547d\u4ee4\u91c7\u7528\u62bd\u6837\u7684\u65b9\u5f0f\uff0c\u9ed8\u8ba4\u62bd\u68375\u4e2a\u5143\u7d20\uff0c\u6240\u4ee5\u8ba1\u7b97\u662f\u8fd1\u4f3c\u503c\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u6307\u5b9a\u62bd\u6837\u7684\u4e2a\u6570\u3002<\/p>\n
      \u793a\u4f8b\u8bf4\u660e\uff1a\u751f\u6210\u4e00\u4e2a100w\u4e2a\u5b57\u6bb5\u7684hash\u952e\uff1ahkey\uff0c\u6bcf\u5b57\u6bb5\u7684value\u957f\u5ea6\u662f\u4ece1~1024\u5b57\u8282\u7684\u968f\u673a\u503c\u3002<\/p>\n
      127.0.0.1:6379> hlen hkey    \/\/ hkey\u6709100w\u4e2a\u5b57\u6bb5\uff0c\u6bcf\u4e2a\u5b57\u6bb5\u7684value\u957f\u5ea6\u4ecb\u4e8e1~1024\u4e2a\u5b57\u8282\n(integer) 1000000\n127.0.0.1:6379> MEMORY usage hkey   \/\/\u9ed8\u8ba4SAMPLES\u4e3a5\uff0c\u5206\u6790hkey\u952e\u5185\u5b58\u5360\u7528521588753\u5b57\u8282\n(integer) 521588753\n127.0.0.1:6379> MEMORY usage hkey SAMPLES  1000 \/\/\u6307\u5b9aSAMPLES\u4e3a1000\uff0c\u5206\u6790hkey\u952e\u5185\u5b58\u5360\u7528617977753\u5b57\u8282\n(integer) 617977753\n127.0.0.1:6379> MEMORY usage hkey SAMPLES  10000 \/\/\u6307\u5b9aSAMPLES\u4e3a10000\uff0c\u5206\u6790hkey\u952e\u5185\u5b58\u5360\u7528624950853\u5b57\u8282\n(integer) 624950853<\/pre>\n
      \u8981\u60f3\u83b7\u53d6key\u8f83\u7cbe\u786e\u7684\u5185\u5b58\u503c\uff0c\u5c31\u6307\u5b9a\u66f4\u5927\u62bd\u6837\u4e2a\u6570\u3002\u4f46\u662f\u62bd\u6837\u4e2a\u6570\u8d8a\u5927\uff0c\u5360\u7528cpu\u65f6\u95f4\u5206\u7247\u5c31\u8d8a\u5927\u3002<\/p>\n
      redis-rdb-tools<\/h3>\n
      redis-rdb-tools \u662f\u4e00\u4e2a python \u7684\u89e3\u6790 rdb \u6587\u4ef6\u7684\u5de5\u5177\uff0c\u5728\u5206\u6790\u5185\u5b58\u7684\u65f6\u5019\uff0c\u6211\u4eec\u4e3b\u8981\u7528\u5b83\u751f\u6210\u5185\u5b58\u5feb\u7167\u3002\u53ef\u4ee5\u628a rdb \u5feb\u7167\u6587\u4ef6\u751f\u6210 CSV \u6216 JSON \u6587\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u5bfc\u5165\u5230 MySQL \u751f\u6210\u62a5\u8868\u6765\u5206\u6790\u3002<\/p>\n
      \u4f7f\u7528 PYPI \u5b89\u88c5<\/p>\n
      pip install rdbtools<\/pre>\n
      \u751f\u6210\u5185\u5b58\u5feb\u7167<\/p>\n
      rdb -c memory dump.rdb > memory.csv<\/pre>\n
      \u5728\u751f\u6210\u7684 CSV \u6587\u4ef6\u4e2d\u6709\u4ee5\u4e0b\u51e0\u5217\uff1a<\/p>\n
        \n
      • database<\/code> key\u5728Redis\u7684db<\/li>\n
      • type<\/code> key\u7c7b\u578b<\/li>\n
      • key<\/code> key\u503c<\/li>\n
      • size_in_bytes<\/code> key\u7684\u5185\u5b58\u5927\u5c0f<\/li>\n
      • encoding<\/code> value\u7684\u5b58\u50a8\u7f16\u7801\u5f62\u5f0f<\/li>\n
      • num_elements<\/code> key\u4e2d\u7684value\u7684\u4e2a\u6570<\/li>\n
      • len_largest_element<\/code> key\u4e2d\u7684value\u7684\u957f\u5ea6<\/li>\n<\/ul>\n
        \u53ef\u4ee5\u5728MySQL\u4e2d\u65b0\u5efa\u8868\u7136\u540e\u5bfc\u5165\u8fdb\u884c\u5206\u6790\uff0c\u7136\u540e\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7SQL\u8bed\u53e5\u8fdb\u884c\u67e5\u8be2\u5206\u6790\u3002<\/p>\n
        CREATE TABLE `memory` (\n     `database` int(128) DEFAULT NULL,\n     `type` varchar(128) DEFAULT NULL,\n     `KEY` varchar(128),\n     `size_in_bytes` bigint(20) DEFAULT NULL,\n     `encoding` varchar(128) DEFAULT NULL,\n     `num_elements` bigint(20) DEFAULT NULL,\n     `len_largest_element` varchar(128) DEFAULT NULL,\n     PRIMARY KEY (`KEY`)\n );<\/pre>\n
        \u4f8b\u5b50\uff1a\u67e5\u8be2\u5185\u5b58\u5360\u7528\u6700\u9ad8\u76843\u4e2a key<\/p>\n
        mysql> SELECT * FROM memory ORDER BY size_in_bytes DESC LIMIT 3;\n+----------+------+-----+---------------+-----------+--------------+---------------------+\n| database | type | key | size_in_bytes | encoding  | num_elements | len_largest_element |\n+----------+------+-----+---------------+-----------+--------------+---------------------+\n|        0 | set  | k1  |        624550 | hashtable |        50000 | 10                  |\n|        0 | set  | k2  |        420191 | hashtable |        46000 | 10                  |\n|        0 | set  | k3  |        325465 | hashtable |        38000 | 10                  |\n+----------+------+-----+---------------+-----------+--------------+---------------------+\n3 rows in set (0.12 sec)<\/pre>\n
        Big Key\u95ee\u9898\u89e3\u51b3\u601d\u8def<\/h2>\n
        \u5f53\u53d1\u73b0\u5b58\u5728\u5927key\u95ee\u9898\u65f6\uff0c\u6211\u4eec\u9700\u8981\u53ca\u65f6\u91c7\u53d6\u63aa\u65bd\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u4e0b\u9762\u5217\u51fa\u51e0\u79cd\u53ef\u884c\u7684\u89e3\u51b3\u601d\u8def\uff1a<\/p>\n
        \u5206\u5272\u5927key<\/h3>\n
        \u5c06Big Key\u62c6\u5206\u6210\u591a\u4e2a\u5c0f\u7684key\u3002\u8fd9\u4e2a\u65b9\u6cd5\u6bd4\u8f83\u7b80\u5355\uff0c\u4f46\u662f\u9700\u8981\u4fee\u6539\u5e94\u7528\u7a0b\u5e8f\u7684\u4ee3\u7801\u3002\u5c31\u50cf\u662f\u628a\u4e00\u4e2a\u5927\u86cb\u7cd5\u5207\u6210\u5c0f\u86cb\u7cd5\u4e00\u6837\uff0c\u6709\u70b9\u8d39\u529b\uff0c\u4f46\u662f\u53ef\u4ee5\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n
        \u6216\u8005\u5c1d\u8bd5\u5c06Big Key\u8f6c\u6362\u6210Redis\u7684\u6570\u636e\u7ed3\u6784\u3002\u4f8b\u5982\uff0c\u5c06Big Key\u8f6c\u6362\u6210Hash\uff0cList\u6216\u8005Set\u7b49\u6570\u636e\u7ed3\u6784\u3002<\/p>\n
        \u5bf9\u8c61\u538b\u7f29<\/h3>\n
        \u5982\u679c\u5927key\u7684\u5927\u5c0f\u4e3b\u8981\u662f\u7531\u4e8e\u5bf9\u8c61\u5e8f\u5217\u5316\u540e\u7684\u4f53\u79ef\u8fc7\u5927\uff0c\u6211\u4eec\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u538b\u7f29\u7b97\u6cd5\u6765\u51cf\u5c0f\u5bf9\u8c61\u7684\u5927\u5c0f\u3002Redis\u81ea\u8eab\u652f\u6301\u591a\u79cd\u538b\u7f29\u7b97\u6cd5\uff0c\u4f8b\u5982LZF\u3001Snappy\u7b49\u3002<\/p>\n
        \u76f4\u63a5\u5220\u9664<\/h3>\n
        \u5982\u679c\u4f60\u4f7f\u7528\u7684\u662fRedis 4.0+\u7684\u7248\u672c\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 unlink\u547d\u4ee4\u53bb\u5f02\u6b65\u5220\u9664\u30024.0\u4ee5\u4e0b\u7684\u7248\u672c \u53ef\u4ee5\u8003\u8651\u4f7f\u7528 scan ,\u5206\u6279\u6b21\u5220\u9664\u3002<\/p>\n
        \u65e0\u8bba\u91c7\u7528\u54ea\u79cd\u65b9\u6cd5\uff0c\u90fd\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n
          \n
        • \n
          \u907f\u514d\u4f7f\u7528\u8fc7\u5927\u7684value\u3002\u5982\u679c\u9700\u8981\u5b58\u50a8\u5927\u91cf\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u5c06\u5176\u62c6\u5206\u6210\u591a\u4e2a\u5c0f\u7684value\u3002\u5c31\u50cf\u662f\u5403\u996d\u4e00\u6837\uff0c\u4e00\u53e3\u4e00\u53e3\u7684\u5403\uff0c\u4e0d\u8981\u8d2a\u591a\u56bc\u4e0d\u70c2\u3002<\/p>\n<\/li>\n
        • \n
          \u907f\u514d\u4f7f\u7528\u4e0d\u5fc5\u8981\u7684\u6570\u636e\u7ed3\u6784\u3002\u4f8b\u5982\uff0c\u5982\u679c\u53ea\u9700\u8981\u5b58\u50a8\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5c31\u4e0d\u8981\u4f7f\u7528Hash\u6216\u8005List\u7b49\u6570\u636e\u7ed3\u6784\u3002<\/p>\n<\/li>\n
        • \n
          \u5b9a\u671f\u6e05\u7406\u8fc7\u671f\u7684key\u3002\u5982\u679cRedis\u4e2d\u5b58\u5728\u5927\u91cf\u7684\u8fc7\u671fkey\uff0c\u5c31\u4f1a\u5bfc\u81f4Redis\u7684\u6027\u80fd\u4e0b\u964d\u3002\u5c31\u50cf\u662f\u5bb6\u91cc\u7684\u5783\u573e\uff0c\u9700\u8981\u5b9a\u671f\u6e05\u7406\u3002<\/p>\n<\/li>\n
        • \n
          \u5bf9\u8c61\u538b\u7f29<\/p>\n<\/li>\n<\/ul>\n
          \u603b\u7ed3<\/h2>\n
          Big Key\u95ee\u9898\u662fRedis\u4e2d\u5e38\u89c1\u7684\u95ee\u9898\u4e4b\u4e00\uff0c\u4f46\u662f\u901a\u8fc7\u5408\u7406\u7684\u6392\u67e5\u548c\u89e3\u51b3\u601d\u8def\uff0c\u6211\u4eec\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u8fd9\u4e2a\u95ee\u9898\u3002\u5728\u4f7f\u7528Redis\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u907f\u514d\u4f7f\u7528\u8fc7\u5927\u7684value\u548c\u4e0d\u5fc5\u8981\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4ee5\u53ca\u5b9a\u671f\u6e05\u7406\u8fc7\u671f\u7684key\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
          Redis\u4e2d\u7684BigKey\u95ee\u9898\u6392...<\/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-201802","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201802","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=201802"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201802\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201802"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201802"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201802"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}