{"id":201336,"date":"2025-05-10T09:10:43","date_gmt":"2025-05-10T01:10:43","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201336\/"},"modified":"2025-05-10T09:10:43","modified_gmt":"2025-05-10T01:10:43","slug":"redis%e6%ad%a3%e7%a1%ae%e4%bd%bf%e7%94%a8%e7%9a%84%e5%8d%81%e4%b8%aa%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201336\/","title":{"rendered":"Redis\u6b63\u786e\u4f7f\u7528\u7684\u5341\u4e2a\u6280\u5de7"},"content":{"rendered":"

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

Redis\u6b63\u786e\u4f7f\u7528\u7684\u5341\u4e2a\u6280\u5de7<\/h1>\n

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

\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aRedis\u6b63\u786e\u4f7f\u7528\u7684\u5341\u4e2a\u6280\u5de7\u300b\uff0c\u8986\u76d6\u4e86\u6570\u636e\u5e93\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n

Redis \u5728\u5f53\u524d\u7684\u6280\u672f\u793e\u533a\u91cc\u662f\u975e\u5e38\u70ed\u95e8\u7684\u3002\u4ece\u6765\u81ea Antirez \u4e00\u4e2a\u5c0f\u5c0f\u7684\u4e2a\u4eba\u9879\u76ee\u5230\u6210\u4e3a\u5185\u5b58\u6570\u636e\u5b58\u50a8\u884c\u4e1a\u7684\u6807\u51c6\uff0cRedis\u5df2\u7ecf\u8d70\u8fc7\u4e86\u5f88\u957f\u7684\u4e00\u6bb5\u8def\u3002
1\u3001\u505c\u6b62\u4f7f\u7528 KEYS *<\/strong><\/p>\n

Okay\uff0c\u4ee5\u6311\u6218\u8fd9\u4e2a\u547d\u4ee4\u5f00\u59cb\u8fd9\u7bc7\u6587\u7ae0\uff0c\u6216\u8bb8\u5e76\u4e0d\u662f\u4e00\u4e2a\u597d\u7684\u65b9\u5f0f\uff0c\u4f46\u5176\u786e\u5b9e\u53ef\u80fd\u662f\u6700\u91cd\u8981\u7684\u4e00\u70b9\u3002\u5f88\u591a\u65f6\u5019\u5f53\u6211\u4eec\u5173\u6ce8\u4e00\u4e2aredis\u5b9e\u4f8b\u7684\u7edf\u8ba1\u6570\u636e\uff0c \u6211\u4eec\u4f1a\u5feb\u901f\u5730\u8f93\u5165\u201dKEYS *\u201d\u547d\u4ee4\uff0c\u8fd9\u6837key\u7684\u4fe1\u606f\u4f1a\u5f88\u660e\u663e\u5730\u5c55\u793a\u51fa\u6765\u3002\u5e73\u5fc3\u800c\u8bba\uff0c\u4ece\u7a0b\u5e8f\u5316\u7684\u89d2\u5ea6\u51fa\u53d1\u5f80\u5f80\u503e\u5411\u4e8e\u5199\u51fa\u4e0b\u9762\u8fd9\u6837\u7684\u4f2a\u4ee3\u7801\uff1a<\/p>\n

\nfor key in 'keys *': \n doAllTheThings() \n<\/pre>\n
\u4f46\u662f\u5f53\u4f60\u67091300\u4e07\u4e2akey\u65f6\uff0c\u6267\u884c\u901f\u5ea6\u5c06\u4f1a\u53d8\u6162\u3002\u56e0\u4e3aKEYS\u547d\u4ee4\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u662fO(n)\uff0c\u5176\u4e2dn\u662f\u8981\u8fd4\u56de\u7684keys\u7684\u4e2a\u6570\uff0c\u8fd9\u6837\u8fd9\u4e2a\u547d\u4ee4\u7684\u590d\u6742\u5ea6\u5c31\u53d6\u51b3\u4e8e\u6570\u636e\u5e93\u7684\u5927\u5c0f\u4e86\u3002\u5e76\u4e14\u5728\u8fd9\u4e2a\u64cd\u4f5c\u6267\u884c\u671f\u95f4\uff0c\u5176\u5b83\u4efb\u4f55\u547d\u4ee4\u5728\u4f60\u7684\u5b9e\u4f8b\u4e2d\u90fd\u65e0\u6cd5\u6267\u884c\u3002<\/p>\n
\u4f5c\u4e3a\u4e00\u4e2a\u66ff\u4ee3\u547d\u4ee4\uff0c\u770b\u4e00\u4e0b SCAN \u5427\uff0c\u5176\u5141\u8bb8\u4f60\u4ee5\u4e00\u79cd\u66f4\u53cb\u597d\u7684\u65b9\u5f0f\u6765\u6267\u884c\u2026 SCAN \u901a\u8fc7\u589e\u91cf\u8fed\u4ee3\u7684\u65b9\u5f0f\u6765\u626b\u63cf\u6570\u636e\u5e93\u3002\u8fd9\u4e00\u64cd\u4f5c\u57fa\u4e8e\u6e38\u6807\u7684\u8fed\u4ee3\u5668\u6765\u5b8c\u6210\u7684\uff0c\u56e0\u6b64\u53ea\u8981\u4f60\u89c9\u5f97\u5408\u9002\uff0c\u4f60\u53ef\u4ee5\u968f\u65f6\u505c\u6b62\u6216\u7ee7\u7eed\u3002<\/p>\n
2\u3001\u627e\u51fa\u62d6\u6162 Redis \u7684\u7f6a\u9b41\u7978\u9996<\/strong><\/p>\n
\u7531\u4e8e Redis \u6ca1\u6709\u975e\u5e38\u8be6\u7ec6\u7684\u65e5\u5fd7\uff0c\u8981\u60f3\u77e5\u9053\u5728 Redis \u5b9e\u4f8b\u5185\u90e8\u90fd\u505a\u4e86\u4e9b\u4ec0\u4e48\u662f\u975e\u5e38\u56f0\u96be\u7684\u3002\u5e78\u8fd0\u7684\u662f Redis \u63d0\u4f9b\u4e86\u4e00\u4e2a\u4e0b\u9762\u8fd9\u6837\u7684\u547d\u4ee4\u7edf\u8ba1\u5de5\u5177\uff1a<\/p>\n
\n127.0.0.1:6379> INFO commandstats \n# Commandstats \ncmdstat_get:calls=78,usec=608,usec_per_call=7.79 \ncmdstat_setex:calls=5,usec=71,usec_per_call=14.20 \ncmdstat_keys:calls=2,usec=42,usec_per_call=21.00 \ncmdstat_info:calls=10,usec=1931,usec_per_call=193.10 \n<\/pre>\n
\u901a\u8fc7\u8fd9\u4e2a\u5de5\u5177\u53ef\u4ee5\u67e5\u770b\u6240\u6709\u547d\u4ee4\u7edf\u8ba1\u7684\u5feb\u7167\uff0c\u6bd4\u5982\u547d\u4ee4\u6267\u884c\u4e86\u591a\u5c11\u6b21\uff0c\u6267\u884c\u547d\u4ee4\u6240\u8017\u8d39\u7684\u6beb\u79d2\u6570(\u6bcf\u4e2a\u547d\u4ee4\u7684\u603b\u65f6\u95f4\u548c\u5e73\u5747\u65f6\u95f4)<\/p>\n
\u53ea\u9700\u8981\u7b80\u5355\u5730\u6267\u884c CONFIG RESETSTAT \u547d\u4ee4\u5c31\u53ef\u4ee5\u91cd\u7f6e\uff0c\u8fd9\u6837\u4f60\u5c31\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a\u5168\u65b0\u7684\u7edf\u8ba1\u7ed3\u679c\u3002<\/p>\n
3\u3001\u5c06 Redis-Benchmark \u7ed3\u679c\u4f5c\u4e3a\u53c2\u8003\uff0c\u800c\u4e0d\u8981\u4e00\u6982\u800c\u8bba<\/strong><\/p>\n
Redis \u4e4b\u7236 Salvatore \u5c31\u8bf4\u8fc7\uff1a\u201c\u901a\u8fc7\u6267\u884cGET\/SET\u547d\u4ee4\u6765\u6d4b\u8bd5Redis\u5c31\u50cf\u5728\u96e8\u5929\u68c0\u6d4b\u6cd5\u62c9\u5229\u7684\u96e8\u5237\u6e05\u6d01\u955c\u5b50\u7684\u6548\u679c\u201d\u3002\u5f88\u591a\u65f6\u5019\u4eba\u4eec\u8dd1\u5230\u6211\u8fd9\u91cc\uff0c\u4ed6\u4eec\u60f3\u77e5\u9053\u4e3a\u4ec0\u4e48\u81ea\u5df1\u7684 Redis-Benchmark\u7edf\u8ba1\u7684\u7ed3\u679c\u4f4e\u4e8e\u6700\u4f18\u7ed3\u679c \u3002\u4f46\u6211\u4eec\u5fc5\u987b\u8981\u628a\u5404\u79cd\u4e0d\u540c\u7684\u771f\u5b9e\u60c5\u51b5\u8003\u8651\u8fdb\u6765\uff0c\u4f8b\u5982\uff1a<\/p>\n
    \n
  • \u53ef\u80fd\u53d7\u5230\u54ea\u4e9b\u5ba2\u6237\u7aef\u8fd0\u884c\u73af\u5883\u7684\u9650\u5236\uff1f<\/li>\n
  • \u662f\u540c\u4e00\u4e2a\u7248\u672c\u53f7\u5417\uff1f<\/li>\n
  • \u6d4b\u8bd5\u73af\u5883\u4e2d\u7684\u8868\u73b0\u4e0e\u5e94\u7528\u5c06\u8981\u8fd0\u884c\u7684\u73af\u5883\u662f\u5426\u4e00\u81f4\uff1f<\/li>\n<\/ul>\n
    Redis-Benchmark\u7684\u6d4b\u8bd5\u7ed3\u679c\u63d0\u4f9b\u4e86\u4e00\u4e2a\u4fdd\u8bc1\u4f60\u7684 Redis-Server \u4e0d\u4f1a\u8fd0\u884c\u5728\u975e\u6b63\u5e38\u72b6\u6001\u4e0b\u7684\u57fa\u51c6\u70b9\uff0c\u4f46\u662f\u4f60\u6c38\u8fdc\u4e0d\u8981\u628a\u5b83\u4f5c\u4e3a\u4e00\u4e2a\u771f\u5b9e\u7684\u201c\u538b\u529b\u6d4b\u8bd5\u201d\u3002\u538b\u529b\u6d4b\u8bd5\u9700\u8981\u53cd\u5e94\u51fa\u5e94\u7528\u7684\u8fd0\u884c\u65b9\u5f0f\uff0c\u5e76\u4e14\u9700\u8981\u4e00\u4e2a\u5c3d\u53ef\u80fd\u7684\u548c\u751f\u4ea7\u76f8\u4f3c\u7684\u73af\u5883\u3002<\/p>\n
    4\u3001Hashes \u662f\u4f60\u7684\u6700\u4f73\u9009\u62e9<\/strong><\/p>\n
    \u4ee5\u4e00\u79cd\u4f18\u96c5\u7684\u65b9\u5f0f\u5f15\u5165 hashes \u5427\u3002hashes \u5c06\u4f1a\u5e26\u7ed9\u4f60\u4e00\u79cd\u524d\u6240\u672a\u6709\u7684\u4f53\u9a8c\u3002\u4e4b\u524d\u6211\u66fe\u770b\u5230\u8fc7\u8bb8\u591a\u7c7b\u4f3c\u4e8e\u4e0b\u9762\u8fd9\u6837\u7684key\u7ed3\u6784\uff1a<\/p>\n
    \nfoo:first_name \nfoo:last_name \nfoo:address \n<\/pre>\n
    \u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0cfoo \u53ef\u80fd\u662f\u4e00\u4e2a\u7528\u6237\u7684\u7528\u6237\u540d\uff0c\u5176\u4e2d\u7684\u6bcf\u4e00\u9879\u90fd\u662f\u4e00\u4e2a\u5355\u72ec\u7684 key\u3002\u8fd9\u5c31\u589e\u52a0\u4e86 \u72af\u9519\u7684\u7a7a\u95f4\uff0c\u548c\u4e00\u4e9b\u4e0d\u5fc5\u8981\u7684 key\u3002\u4f7f\u7528 hash \u4ee3\u66ff\u5427\uff0c\u4f60\u4f1a\u60ca\u5947\u5730\u53d1\u73b0\u7adf\u7136\u53ea\u9700\u8981\u4e00\u4e2a key \uff1a<\/p>\n
    \n127.0.0.1:6379> HSET foo first_name \"Joe\" \n(integer) 1 \n127.0.0.1:6379> HSET foo last_name \"Engel\" \n(integer) 1 \n127.0.0.1:6379> HSET foo address \"1 Fanatical Pl\" \n(integer) 1 \n127.0.0.1:6379> HGETALL foo \n1) \"first_name\" \n2) \"Joe\" \n3) \"last_name\" \n4) \"Engel\" \n5) \"address\" \n6) \"1 Fanatical Pl\" \n127.0.0.1:6379> HGET foo first_name \n\"Joe\" \n<\/pre>\n
    5\u3001\u8bbe\u7f6e key \u503c\u7684\u5b58\u6d3b\u65f6\u95f4<\/strong><\/p>\n
    \u65e0\u8bba\u4ec0\u4e48\u65f6\u5019\uff0c\u53ea\u8981\u6709\u53ef\u80fd\u5c31\u5229\u7528key\u8d85\u65f6\u7684\u4f18\u52bf\u3002\u4e00\u4e2a\u5f88\u597d\u7684\u4f8b\u5b50\u5c31\u662f\u50a8\u5b58\u4e00\u4e9b\u8bf8\u5982\u4e34\u65f6\u8ba4\u8bc1key\u4e4b\u7c7b\u7684\u4e1c\u897f\u3002\u5f53\u4f60\u53bb\u67e5\u627e\u4e00\u4e2a\u6388\u6743key\u65f6\u2014\u2014\u4ee5 OAUTH\u4e3a\u4f8b\u2014\u2014\u901a\u5e38\u4f1a\u5f97\u5230\u4e00\u4e2a\u8d85\u65f6\u65f6\u95f4\u3002\u8fd9\u6837\u5728\u8bbe\u7f6ekey\u7684\u65f6\u5019\uff0c\u8bbe\u6210\u540c\u6837\u7684\u8d85\u65f6\u65f6\u95f4\uff0cRedis\u5c31\u4f1a\u81ea\u52a8\u4e3a\u4f60\u6e05\u9664\uff01\u800c\u4e0d\u518d\u9700\u8981\u4f7f\u7528KEYS *\u6765\u904d\u5386\u6240\u6709\u7684key\u4e86\uff0c\u600e\u4e48\u6837\u5f88\u65b9\u4fbf\u5427\uff1f<\/p>\n
    6\u3001\u9009\u62e9\u5408\u9002\u7684\u56de\u6536\u7b56\u7565<\/strong><\/p>\n
    \u65e2\u7136\u8c08\u5230\u4e86\u6e05\u9664key\u8fd9\u4e2a\u8bdd\u9898\uff0c\u90a3\u6211\u4eec\u5c31\u6765\u804a\u804a\u56de\u6536\u7b56\u7565\u3002\u5f53 Redis \u7684\u5b9e\u4f8b\u7a7a\u95f4\u88ab\u586b\u6ee1\u4e86\u4e4b\u540e\uff0c\u5c06\u4f1a\u5c1d\u8bd5\u56de\u6536\u4e00\u90e8\u5206key\u3002\u6839\u636e\u4f60\u7684\u4f7f\u7528\u65b9\u5f0f\uff0c\u6211\u5f3a\u70c8\u5efa\u8bae\u4f7f\u7528 Volatile-lru \u7b56\u7565\u2014\u2014\u524d\u63d0\u662f\u4f60\u5bf9key\u5df2\u7ecf\u8bbe\u7f6e\u4e86\u8d85\u65f6\u3002\u4f46\u5982\u679c\u4f60\u8fd0\u884c\u7684\u662f\u4e00\u4e9b\u7c7b\u4f3c\u4e8e cache \u7684\u4e1c\u897f\uff0c\u5e76\u4e14\u6ca1\u6709\u5bf9 key \u8bbe\u7f6e\u8d85\u65f6\u673a\u5236\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528 allkeys-lru \u56de\u6536\u673a\u5236\u3002\u6211\u7684\u5efa\u8bae\u662f\u5148\u5728\u8fd9\u91cc\u67e5\u770b\u4e00\u4e0b\u53ef\u884c\u7684\u65b9\u6848\u3002<\/p>\n
    7\u3001\u5982\u679c\u4f60\u7684\u6570\u636e\u5f88\u91cd\u8981\uff0c\u8bf7\u4f7f\u7528 Try\/Except<\/strong><\/p>\n
    \u5982\u679c\u5fc5\u987b\u786e\u4fdd\u5173\u952e\u6027\u7684\u6570\u636e\u53ef\u4ee5\u88ab\u653e\u5165\u5230 Redis \u7684\u5b9e\u4f8b\u4e2d\uff0c\u6211\u5f3a\u70c8\u5efa\u8bae\u5c06\u5176\u653e\u5165 try\/except \u5757\u4e2d\u3002\u51e0\u4e4e\u6240\u6709\u7684Redis\u5ba2\u6237\u7aef\u91c7\u7528\u7684\u90fd\u662f\u201c\u53d1\u9001\u5373\u5fd8\u201d\u7b56\u7565\uff0c\u56e0\u6b64\u7ecf\u5e38\u9700\u8981\u8003\u8651\u4e00\u4e2a key \u662f\u5426\u771f\u6b63\u88ab\u653e\u5230 Redis \u6570\u636e\u5e93\u4e2d\u4e86\u3002\u81f3\u4e8e\u5c06 try\/expect \u653e\u5230 Redis \u547d\u4ee4\u4e2d\u7684\u590d\u6742\u6027\u5e76\u4e0d\u662f\u672c\u6587\u8981\u8bb2\u7684\uff0c\u4f60\u53ea\u9700\u8981\u77e5\u9053\u8fd9\u6837\u505a\u53ef\u4ee5\u786e\u4fdd\u91cd\u8981\u7684\u6570\u636e\u653e\u5230\u8be5\u653e\u7684\u5730\u65b9\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n
    8\u3001\u4e0d\u8981\u8017\u5c3d\u4e00\u4e2a\u5b9e\u4f8b<\/strong><\/p>\n
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    9\u3001\u5185\u6838\u8d8a\u591a\u8d8a\u597d\u5417\uff1f<\/strong><\/p>\n
    \u5f53\u7136\u662f\u9519\u7684\u3002Redis \u662f\u4e00\u4e2a\u5355\u7ebf\u7a0b\u8fdb\u7a0b\uff0c\u5373\u4f7f\u542f\u7528\u4e86\u6301\u4e45\u5316\u6700\u591a\u4e5f\u53ea\u4f1a\u6d88\u8017\u4e24\u4e2a\u5185\u6838\u3002\u9664\u975e\u4f60\u8ba1\u5212\u5728\u4e00\u53f0\u4e3b\u673a\u4e0a\u8fd0\u884c\u591a\u4e2a\u5b9e\u4f8b\u2014\u2014\u5e0c\u671b\u53ea\u4f1a\u662f\u5728\u5f00\u53d1\u6d4b\u8bd5\u7684\u73af\u5883\u4e0b\uff01\u2014\u2014\u5426\u5219\u7684\u8bdd\u5bf9\u4e8e\u4e00\u4e2a Redis \u5b9e\u4f8b\u662f\u4e0d\u9700\u89812\u4e2a\u4ee5\u4e0a\u5185\u6838\u7684\u3002<\/p>\n
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