{"id":45835,"date":"2024-12-01T08:04:59","date_gmt":"2024-12-01T00:04:59","guid":{"rendered":"https:\/\/fwq.ai\/blog\/45835\/"},"modified":"2024-12-01T08:04:59","modified_gmt":"2024-12-01T00:04:59","slug":"%e5%88%a9%e7%94%a8redis%e5%ae%9e%e7%8e%b0%e5%88%86%e5%b8%83%e5%bc%8f%e7%bc%93%e5%ad%98%e7%a9%bf%e9%80%8f%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/45835\/","title":{"rendered":"\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848"},"content":{"rendered":"

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

\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848<\/h1>\n

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

\u6709\u5fd7\u8005\uff0c\u4e8b\u7adf\u6210\uff01\u5982\u679c\u4f60\u5728\u5b66\u4e60\u6570\u636e\u5e93<\/span>\uff0c\u90a3\u4e48\u672c\u6587\u300a\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848\u300b<\/span>\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff01\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec<\/span>\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/span><\/p>\n

\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848<\/p>\n

\u968f\u7740\u4e92\u8054\u7f51\u4e1a\u52a1\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u6570\u636e\u8bbf\u95ee\u91cf\u4e5f\u5728\u4e0d\u65ad\u589e\u52a0\uff0c\u4e3a\u4e86\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\uff0c\u7f13\u5b58\u6280\u672f\u9010\u6e10\u6210\u4e3a\u4e86\u5fc5\u4e0d\u53ef\u5c11\u7684\u4e00\u90e8\u5206\uff0c\u5176\u4e2dRedis\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6548\u3001\u53ef\u6269\u5c55\u7684\u7f13\u5b58\u4e2d\u95f4\u4ef6\u65b9\u6848\uff0c\u5907\u53d7\u5f00\u53d1\u8005\u7684\u9752\u7750\u3002\u5728\u4f7f\u7528Redis\u4f5c\u4e3a\u5206\u5e03\u5f0f\u7f13\u5b58\u65f6\uff0c\u4e3a\u4e86\u907f\u514d\u7f13\u5b58\u7a7f\u900f\u800c\u4ea7\u751f\u7684\u6027\u80fd\u95ee\u9898\uff0c\u6211\u4eec\u9700\u8981\u5b9e\u73b0\u4e00\u79cd\u53ef\u9760\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n

\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848\uff0c\u5e76\u4e14\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u8fdb\u884c\u8bb2\u89e3\u3002<\/p>\n

\u4e00\u3001\u4ec0\u4e48\u662f\u7f13\u5b58\u7a7f\u900f\uff1f<\/p>\n

\u5728\u4f7f\u7528\u7f13\u5b58\u6280\u672f\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u5bf9\u7f13\u5b58\u5b9e\u73b0\u4e25\u683c\u6709\u6548\u6027\u7684\u63a7\u5236\uff0c\u90a3\u4e48\u5c31\u53ef\u80fd\u51fa\u73b0\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\uff0c\u5373\u5f53\u4e00\u4e2a\u8bf7\u6c42\u4e2d\u6240\u9700\u7684\u6570\u636e\u5728\u7f13\u5b58\u4e2d\u4e0d\u5b58\u5728\uff0c\u6bcf\u6b21\u8bf7\u6c42\u90fd\u4f1a\u76f4\u63a5\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u5bfc\u81f4\u6570\u636e\u5e93\u8d44\u6e90\u8fc7\u8f7d\uff0c\u4ece\u800c\u964d\u4f4e\u6574\u4e2a\u7cfb\u7edf\u7684\u6027\u80fd\u751a\u81f3\u51fa\u73b0\u5b95\u673a\u3002<\/p>\n

\u7f13\u5b58\u7a7f\u900f\u7684\u4e3b\u8981\u539f\u56e0\u4e3a\u7f13\u5b58\u4e2d\u65e0\u6cd5\u5b58\u50a8\u6240\u6709\u7684\u6570\u636e\uff0c\u800c\u8bf7\u6c42\u4e2d\u7684\u6570\u636e\u53c8\u6709\u53ef\u80fd\u662f\u672a\u88ab\u5b58\u50a8\u5728\u7f13\u5b58\u4e2d\u7684\uff0c\u5982\u679c\u6ca1\u6709\u8fdb\u884c\u6709\u6548\u63a7\u5236\uff0c\u90a3\u4e48\u6bcf\u6b21\u8bf7\u6c42\u90fd\u4f1a\u76f4\u63a5\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u9020\u6210\u7cfb\u7edf\u8d44\u6e90\u6781\u5ea6\u6d6a\u8d39\u3002<\/p>\n

\u4e8c\u3001\u5982\u4f55\u89e3\u51b3\u7f13\u5b58\u7a7f\u900f\u95ee\u9898<\/p>\n

\u89e3\u51b3\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4e24\u4e2a\u65b9\u6cd5\uff1a<\/p>\n

1\u3001Bloom Filter\u7b97\u6cd5<\/p>\n

Bloom Filter\u7b97\u6cd5\u662f\u4e00\u79cd\u57fa\u4e8e\u4f4d\u5411\u91cf\u7684\u9ad8\u6548\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u7528\u4e8e\u5feb\u901f\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\u4e2d\uff0c\u5177\u6709\u7a7a\u95f4\u548c\u65f6\u95f4\u590d\u6742\u5ea6\u975e\u5e38\u4f4e\u7684\u7279\u70b9\u3002\u5728\u4f7f\u7528Bloom Filter\u7b97\u6cd5\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u8bf7\u6c42\u7684\u6570\u636e\u7684\u54c8\u5e0c\u503c\u5b58\u50a8\u5728Bloom Filter\u7684\u4f4d\u5411\u91cf\u4e2d\uff0c\u5982\u679c\u8be5\u6570\u636e\u8bf7\u6c42\u7684\u54c8\u5e0c\u503c\u5728Bloom Filter\u4e2d\u4e0d\u5b58\u5728\uff0c\u90a3\u4e48\u8fd9\u4e2a\u8bf7\u6c42\u5c31\u53ef\u4ee5\u88ab\u76f4\u63a5\u62d2\u7edd\uff0c\u4ece\u800c\u907f\u514d\u4e86\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\u3002<\/p>\n

2\u3001\u7f13\u5b58\u9884\u70ed<\/p>\n

\u7f13\u5b58\u9884\u70ed\u6307\u7684\u662f\u5728\u7cfb\u7edf\u542f\u52a8\u65f6\uff0c\u63d0\u524d\u5c06\u9700\u8981\u4f7f\u7528\u7684\u6570\u636e\u52a0\u8f7d\u5230\u7f13\u5b58\u4e2d\uff0c\u4ee5\u6b64\u4fdd\u8bc1\u8bf7\u6c42\u5728\u8fdb\u5165\u540e\u53f0\u7cfb\u7edf\u524d\u5df2\u7ecf\u5b58\u5728\u4e8e\u7f13\u5b58\u4e2d\uff0c\u4ece\u800c\u907f\u514d\u4e86\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\u3002<\/p>\n

\u4e09\u3001\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848<\/p>\n

\u5728\u4f7f\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\uff1a<\/p>\n

1\u3001\u4f7f\u7528\u5206\u5e03\u5f0f\u9501<\/p>\n

\u5728\u8fdb\u884c\u7f13\u5b58\u67e5\u8be2\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5206\u5e03\u5f0f\u9501\u6765\u786e\u4fdd\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u8bbf\u95ee\u6570\u636e\u5e93\u5e76\u66f4\u65b0\u7f13\u5b58\u3002\u5047\u5982\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee\u540c\u4e00\u4e2a\u6570\u636e\uff0c\u90a3\u4e48\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u62a2\u5230\u9501\uff0c\u4ece\u800c\u907f\u514d\u4e86\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u91c7\u7528\u5206\u5e03\u5f0f\u9501\u5b9e\u73b0\u7684\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n

def query_data(key):\n    #\u5148\u5c1d\u8bd5\u4ece\u7f13\u5b58\u4e2d\u8bfb\u53d6\u6570\u636e\n    data = cache.get(key)\n    #\u5982\u679c\u7f13\u5b58\u4e2d\u6ca1\u6709\u8be5\u6570\u636e\uff0c\u5219\u83b7\u53d6\u5206\u5e03\u5f0f\u9501\n    if not data:\n        lock_key = 'lock:' + key\n        #\u5c1d\u8bd5\u83b7\u53d6\u9501\n        if cache.setnx(lock_key, 1):\n            #\u82e5\u83b7\u53d6\u5230\u9501\uff0c\u5219\u4ece\u6570\u636e\u5e93\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u5e76\u66f4\u65b0\u5230\u7f13\u5b58\u4e2d\n            data = db.query(key)\n            cache.set(key, data)\n            #\u91ca\u653e\u9501\n            cache.delete(lock_key)\n        else:\n            #\u5982\u679c\u672a\u83b7\u53d6\u5230\u9501\uff0c\u5219\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e\u91cd\u8bd5\n            time.sleep(0.1)\n            data = query_data(key)\n    return data<\/pre>\n
2\u3001\u4f7f\u7528\u5e03\u9686\u8fc7\u6ee4\u5668<\/p>\n
\u5728\u8fdb\u884c\u7f13\u5b58\u67e5\u8be2\u524d\uff0c\u6211\u4eec\u53ef\u4ee5\u5148\u5c06\u6570\u636e\u7684\u54c8\u5e0c\u503c\u5b58\u50a8\u5230\u5e03\u9686\u8fc7\u6ee4\u5668\u4e2d\uff0c\u5982\u679c\u54c8\u5e0c\u503c\u5bf9\u5e94\u7684\u6570\u636e\u4e0d\u5b58\u5728\uff0c\u90a3\u4e48\u8bf7\u6c42\u5c31\u53ef\u4ee5\u76f4\u63a5\u88ab\u62d2\u7edd\uff0c\u4ece\u800c\u907f\u514d\u4e86\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u91c7\u7528\u5e03\u9686\u8fc7\u6ee4\u5668\u5b9e\u73b0\u7684\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n
import redis\nfrom pybloom_live import BloomFilter\n\n#\u521d\u59cb\u5316\u5e03\u9686\u8fc7\u6ee4\u5668\nbf = BloomFilter(capacity=1000000, error_rate=0.001)\n#\u521d\u59cb\u5316Redis\u8fde\u63a5\u6c60\npool = redis.ConnectionPool(host='127.0.0.1', port=6379)\ncache = redis.Redis(connection_pool=pool)\n\ndef query_data(key):\n    #\u5148\u5c1d\u8bd5\u4ece\u7f13\u5b58\u4e2d\u8bfb\u53d6\u6570\u636e\n    data = cache.get(key)\n    #\u5982\u679c\u7f13\u5b58\u4e2d\u6ca1\u6709\u8be5\u6570\u636e\uff0c\u5219\u68c0\u67e5\u5e03\u9686\u8fc7\u6ee4\u5668\uff0c\u5982\u679c\u5e03\u9686\u8fc7\u6ee4\u5668\u4e2d\u4e0d\u5b58\u5728\u8be5\u6570\u636e\uff0c\u5219\u76f4\u63a5\u8fd4\u56deNone\n    if not data and (key not in bf):\n        return None\n    #\u5982\u679c\u7f13\u5b58\u4e2d\u6ca1\u6709\u8be5\u6570\u636e\uff0c\u4f46\u662f\u5b58\u5728\u4e8e\u5e03\u9686\u8fc7\u6ee4\u5668\u4e2d\uff0c\u5219\u83b7\u53d6\u5206\u5e03\u5f0f\u9501\n    if not data:\n        lock_key = 'lock:' + key\n        #\u5c1d\u8bd5\u83b7\u53d6\u9501\n        if cache.setnx(lock_key, 1):\n            #\u82e5\u83b7\u53d6\u5230\u9501\uff0c\u5219\u4ece\u6570\u636e\u5e93\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u5e76\u66f4\u65b0\u5230\u7f13\u5b58\u4e2d\n            data = db.query(key)\n            cache.set(key, data)\n            #\u5c06\u54c8\u5e0c\u503c\u6dfb\u52a0\u5230\u5e03\u9686\u8fc7\u6ee4\u5668\u4e2d\n            bf.add(key)\n            #\u91ca\u653e\u9501\n            cache.delete(lock_key)\n        else:\n            #\u5982\u679c\u672a\u83b7\u53d6\u5230\u9501\uff0c\u5219\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e\u91cd\u8bd5\n            time.sleep(0.1)\n            data = query_data(key)\n    return data<\/pre>\n
\u4ee5\u4e0a\u662f\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848\u7684\u5177\u4f53\u5b9e\u73b0\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n
\u603b\u7ed3\uff1a<\/p>\n
\u5728\u4f7f\u7528Redis\u4f5c\u4e3a\u5206\u5e03\u5f0f\u7f13\u5b58\u4e2d\u95f4\u4ef6\u65b9\u6848\u65f6\uff0c\u4e3a\u907f\u514d\u7f13\u5b58\u7a7f\u900f\u800c\u4ea7\u751f\u7684\u6027\u80fd\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5206\u5e03\u5f0f\u9501\u6216\u8005\u5e03\u9686\u8fc7\u6ee4\u5668\u7684\u65b9\u6cd5\u8fdb\u884c\u89e3\u51b3\u3002\u5728\u4f7f\u7528\u5e03\u9686\u8fc7\u6ee4\u5668\u7684\u540c\u65f6\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u7ed3\u5408\u7f13\u5b58\u9884\u70ed\u7684\u65b9\u6cd5\uff0c\u63d0\u524d\u5c06\u9700\u8981\u7528\u5230\u7684\u6570\u636e\u52a0\u8f7d\u5230Redis\u7f13\u5b58\u4e2d\uff0c\u4ee5\u6b64\u4fdd\u8bc1\u8bf7\u6c42\u5728\u8fdb\u5165\u540e\u53f0\u7cfb\u7edf\u524d\u5df2\u7ecf\u5b58\u5728\u4e8e\u7f13\u5b58\u4e2d\uff0c\u4ece\u800c\u907f\u514d\u4e86\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300a\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8eredis,\u5206\u5e03\u5f0f\u7f13\u5b58,\u7f13\u5b58\u7a7f\u900f\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8golang\u5b66\u4e60\u7f51\u516c\u4f17\u53f7\uff01<\/p>\n
\n
\n <\/dt>\n
\n   Redis\uff1a\u5b9e\u65f6\u6570\u636e\u5904\u7406\u7684\u4e0d\u4e8c\u9009\u62e9\n <\/dd>\n<\/dl>\n
\n
\n <\/dt>\n
\n   Redis\uff1a\u6784\u5efa\u5b9e\u65f6\u6570\u636e\u5206\u6790\u7cfb\u7edf\u7684\u5173\u952e\u6280\u672f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848 \u6536\u85cf \u6709\u5fd7\u8005\uff0c\u4e8b\u7adf\u6210\uff01\u5982\u679c\u4f60\u5728\u5b66\u4e60\u6570\u636e\u5e93\uff0c\u90a3\u4e48\u672c\u6587\u300a\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848\u300b\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff01\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~ \u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848 \u968f\u7740\u4e92\u8054\u7f51\u4e1a\u52a1\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u6570\u636e\u8bbf\u95ee\u91cf\u4e5f\u5728\u4e0d\u65ad\u589e\u52a0\uff0c\u4e3a\u4e86\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\uff0c\u7f13\u5b58\u6280\u672f\u9010\u6e10\u6210\u4e3a\u4e86\u5fc5\u4e0d\u53ef\u5c11\u7684\u4e00\u90e8\u5206\uff0c\u5176\u4e2dRedis\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6548\u3001\u53ef\u6269\u5c55\u7684\u7f13\u5b58\u4e2d\u95f4\u4ef6\u65b9\u6848\uff0c\u5907\u53d7\u5f00\u53d1\u8005\u7684\u9752\u7750\u3002\u5728\u4f7f\u7528Redis\u4f5c\u4e3a\u5206\u5e03\u5f0f\u7f13\u5b58\u65f6\uff0c\u4e3a\u4e86\u907f\u514d\u7f13\u5b58\u7a7f\u900f\u800c\u4ea7\u751f\u7684\u6027\u80fd\u95ee\u9898\uff0c\u6211\u4eec\u9700\u8981\u5b9e\u73b0\u4e00\u79cd\u53ef\u9760\u7684\u89e3\u51b3\u65b9\u6848\u3002 \u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848\uff0c\u5e76\u4e14\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u8fdb\u884c\u8bb2\u89e3\u3002 \u4e00\u3001\u4ec0\u4e48\u662f\u7f13\u5b58\u7a7f\u900f\uff1f \u5728\u4f7f\u7528\u7f13\u5b58\u6280\u672f\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u5bf9\u7f13\u5b58\u5b9e\u73b0\u4e25\u683c\u6709\u6548\u6027\u7684\u63a7\u5236\uff0c\u90a3\u4e48\u5c31\u53ef\u80fd\u51fa\u73b0\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\uff0c\u5373\u5f53\u4e00\u4e2a\u8bf7\u6c42\u4e2d\u6240\u9700\u7684\u6570\u636e\u5728\u7f13\u5b58\u4e2d\u4e0d\u5b58\u5728\uff0c\u6bcf\u6b21\u8bf7\u6c42\u90fd\u4f1a\u76f4\u63a5\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u5bfc\u81f4\u6570\u636e\u5e93\u8d44\u6e90\u8fc7\u8f7d\uff0c\u4ece\u800c\u964d\u4f4e\u6574\u4e2a\u7cfb\u7edf\u7684\u6027\u80fd\u751a\u81f3\u51fa\u73b0\u5b95\u673a\u3002 \u7f13\u5b58\u7a7f\u900f\u7684\u4e3b\u8981\u539f\u56e0\u4e3a\u7f13\u5b58\u4e2d\u65e0\u6cd5\u5b58\u50a8\u6240\u6709\u7684\u6570\u636e\uff0c\u800c\u8bf7\u6c42\u4e2d\u7684\u6570\u636e\u53c8\u6709\u53ef\u80fd\u662f\u672a\u88ab\u5b58\u50a8\u5728\u7f13\u5b58\u4e2d\u7684\uff0c\u5982\u679c\u6ca1\u6709\u8fdb\u884c\u6709\u6548\u63a7\u5236\uff0c\u90a3\u4e48\u6bcf\u6b21\u8bf7\u6c42\u90fd\u4f1a\u76f4\u63a5\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u9020\u6210\u7cfb\u7edf\u8d44\u6e90\u6781\u5ea6\u6d6a\u8d39\u3002 \u4e8c\u3001\u5982\u4f55\u89e3\u51b3\u7f13\u5b58\u7a7f\u900f\u95ee\u9898 \u89e3\u51b3\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4e24\u4e2a\u65b9\u6cd5\uff1a 1\u3001Bloom Filter\u7b97\u6cd5 Bloom Filter\u7b97\u6cd5\u662f\u4e00\u79cd\u57fa\u4e8e\u4f4d\u5411\u91cf\u7684\u9ad8\u6548\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u7528\u4e8e\u5feb\u901f\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\u4e2d\uff0c\u5177\u6709\u7a7a\u95f4\u548c\u65f6\u95f4\u590d\u6742\u5ea6\u975e\u5e38\u4f4e\u7684\u7279\u70b9\u3002\u5728\u4f7f\u7528Bloom Filter\u7b97\u6cd5\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u8bf7\u6c42\u7684\u6570\u636e\u7684\u54c8\u5e0c\u503c\u5b58\u50a8\u5728Bloom Filter\u7684\u4f4d\u5411\u91cf\u4e2d\uff0c\u5982\u679c\u8be5\u6570\u636e\u8bf7\u6c42\u7684\u54c8\u5e0c\u503c\u5728Bloom Filter\u4e2d\u4e0d\u5b58\u5728\uff0c\u90a3\u4e48\u8fd9\u4e2a\u8bf7\u6c42\u5c31\u53ef\u4ee5\u88ab\u76f4\u63a5\u62d2\u7edd\uff0c\u4ece\u800c\u907f\u514d\u4e86\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\u3002 2\u3001\u7f13\u5b58\u9884\u70ed \u7f13\u5b58\u9884\u70ed\u6307\u7684\u662f\u5728\u7cfb\u7edf\u542f\u52a8\u65f6\uff0c\u63d0\u524d\u5c06\u9700\u8981\u4f7f\u7528\u7684\u6570\u636e\u52a0\u8f7d\u5230\u7f13\u5b58\u4e2d\uff0c\u4ee5\u6b64\u4fdd\u8bc1\u8bf7\u6c42\u5728\u8fdb\u5165\u540e\u53f0\u7cfb\u7edf\u524d\u5df2\u7ecf\u5b58\u5728\u4e8e\u7f13\u5b58\u4e2d\uff0c\u4ece\u800c\u907f\u514d\u4e86\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\u3002 \u4e09\u3001\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u7a7f\u900f\u89e3\u51b3\u65b9\u6848 \u5728\u4f7f\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\uff1a 1\u3001\u4f7f\u7528\u5206\u5e03\u5f0f\u9501 \u5728\u8fdb\u884c\u7f13\u5b58\u67e5\u8be2\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5206\u5e03\u5f0f\u9501\u6765\u786e\u4fdd\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u8bbf\u95ee\u6570\u636e\u5e93\u5e76\u66f4\u65b0\u7f13\u5b58\u3002\u5047\u5982\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee\u540c\u4e00\u4e2a\u6570\u636e\uff0c\u90a3\u4e48\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u62a2\u5230\u9501\uff0c\u4ece\u800c\u907f\u514d\u4e86\u7f13\u5b58\u7a7f\u900f\u7684\u95ee\u9898\u3002 \u4ee5\u4e0b\u662f\u91c7\u7528\u5206\u5e03\u5f0f\u9501\u5b9e\u73b0\u7684\u4ee3\u7801\u793a\u4f8b\uff1a def query_data(key): #\u5148\u5c1d\u8bd5\u4ece\u7f13\u5b58\u4e2d\u8bfb\u53d6\u6570\u636e data = cache.get(key) #\u5982\u679c\u7f13\u5b58\u4e2d\u6ca1\u6709\u8be5\u6570\u636e\uff0c\u5219\u83b7\u53d6\u5206\u5e03\u5f0f\u9501 if not data: lock_key = ‘lock:’ + key #\u5c1d\u8bd5\u83b7\u53d6\u9501 if cache.setnx(lock_key, 1): #\u82e5\u83b7\u53d6\u5230\u9501\uff0c\u5219\u4ece\u6570\u636e\u5e93\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u5e76\u66f4\u65b0\u5230\u7f13\u5b58\u4e2d data = db.query(key) cache.set(key, data) #\u91ca\u653e\u9501 cache.delete(lock_key) else: #\u5982\u679c\u672a\u83b7\u53d6\u5230\u9501\uff0c\u5219\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e\u91cd\u8bd5 time.sleep(0.1) […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-45835","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/45835","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=45835"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/45835\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=45835"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=45835"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=45835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}