{"id":44443,"date":"2024-12-01T13:05:56","date_gmt":"2024-12-01T05:05:56","guid":{"rendered":"https:\/\/fwq.ai\/blog\/44443\/"},"modified":"2024-12-01T13:05:56","modified_gmt":"2024-12-01T05:05:56","slug":"redis%e5%ae%9e%e7%8e%b0uv%e7%bb%9f%e8%ae%a1%e7%9a%84%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/44443\/","title":{"rendered":"Redis\u5b9e\u73b0UV\u7edf\u8ba1\u7684\u793a\u4f8b\u4ee3\u7801"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Redis\u5b9e\u73b0UV\u7edf\u8ba1\u7684\u793a\u4f8b\u4ee3\u7801<\/h1>\n<p><span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4eca\u5929golang\u5b66\u4e60\u7f51\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;font-family:\">\u300aRedis\u5b9e\u73b0UV\u7edf\u8ba1\u7684\u793a\u4f8b\u4ee3\u7801\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<span style=\"color: #FF6600;font-family:\">RedisUV\u7edf\u8ba1<\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n<h2>\u4e00\u3001HyperLogLog<\/h2>\n<h3>1\u3001\u4e3a\u4ec0\u4e48\u7528HyperLogLog<\/h3>\n<p>\u5148\u4ecb\u7ecd\u4e24\u4e2a\u6982\u5ff5\uff1a<\/p>\n<p><strong>UV\uff1a<\/strong>\u5168\u79f0 Unique Visitor\uff0c\u4e5f\u53eb\u72ec\u7acb\u8bbf\u5ba2\u91cf\uff0c\u662f\u6307\u901a\u8fc7\u4e92\u8054\u7f51\u8bbf\u95ee\u3001\u6d4f\u89c8\u8fd9\u4e2a\u7f51\u9875\u7684\u81ea\u7136\u4eba\u30011 \u5929\u5185\u540c\u4e00\u4e2a\u7528\u6237\u591a\u6b21\u8bbf\u95ee\u8be5\u7f51\u7ad9\uff0c\u53ea\u8bb0\u5f55 1 \u6b21\u3002<br \/><strong>PV\uff1a<\/strong>\u5168\u79f0 Page View\uff0c\u4e5f\u53eb\u9875\u9762\u8bbf\u95ee\u91cf\u6216\u70b9\u51fb\u91cf\uff0c\u7528\u6237\u6bcf\u8bbf\u95ee\u7f51\u7ad9\u7684\u4e00\u4e2a\u9875\u9762\uff0c\u8bb0\u5f55\u4e00\u6b21 PV\uff0c\u7528\u6237\u591a\u6b21\u6253\u5f00\u9875\u9762\uff0c\u5219\u8bb0\u5f55\u591a\u6b21 PV\u3002\u5f80\u5f80\u7528\u6765\u8861\u91cf\u7f51\u7ad9\u7684\u6d41\u91cf\u3002<\/p>\n<p>UV \u7edf\u8ba1\u5728\u670d\u52a1\u7aef\u505a\u4f1a\u6bd4\u8f83\u9ebb\u70e6\uff0c\u56e0\u4e3a\u8981\u5224\u65ad\u8be5\u7528\u6237\u662f\u5426\u5df2\u7ecf\u7edf\u8ba1\u8fc7\u4e86\uff0c\u9700\u8981\u5c06\u7edf\u8ba1\u8fc7\u7684\u7528\u6237\u4fe1\u606f\u4fdd\u5b58\u3002\u4f46\u662f\u5982\u679c\u6bcf\u4e2a\u8bbf\u95ee\u7684\u7528\u6237\u90fd\u4fdd\u5b58\u5230Redis \u4e2d\uff0c\u6570\u636e\u91cf\u4f1a\u975e\u5e38\u6050\u6016\u3002<\/p>\n<p>\u90a3\u4e48\u6211\u4eec\u8981\u600e\u4e48\u66f4\u597d\u7684\u8bb0\u5f55\u5462\uff1f\u5c31\u7528\u5230 HyperLogLog<\/p>\n<h3>2\u3001HyperLogLog\u662f\u4ec0\u4e48<\/h3>\n<p>HyperLogLog\uff08HLL\uff09\u662f\u4ece Loglog \u7b97\u6cd5\u6d3e\u751f\u7684\u6982\u7387\u7b97\u6cd5\uff0c\u7528\u4e8e\u786e\u5b9a\u975e\u5e38\u5927\u7684\u96c6\u5408\u7684\u57fa\u6570\uff0c\u800c\u4e0d\u9700\u8981\u5b58\u50a8\u5176\u6240\u6709\u503c\u3002<\/p>\n<p>Redis \u4e2d\u7684 HLL \u662f\u57fa\u4e8e String \u7ed3\u6784\u5b9e\u73b0\u7684\uff0c\u5355\u4e2a HLL \u7684\u5185\u5b58\u6c38\u8fdc\u5c0f\u4e8e 16kb\uff0c\u5185\u5b58\u5360\u7528\u4f4e\u7684\u4ee4\u4eba\u53d1\u6307\uff01\u4f5c\u4e3a\u4ee3\u4ef7\uff0c\u5176\u6d4b\u91cf\u7ed3\u679c\u662f\u6982\u7387\u6027\u7684\uff0c\u6709\u5c0f\u4e8e 0.81% \u7684\u8bef\u5dee\u3002\u4e0d\u8fc7\u5bf9\u4e8e UV \u7edf\u8ba1\u6765\u8bf4\uff0c\u8fd9\u5b8c\u5168\u53ef\u4ee5\u5ffd\u7565\u3002<\/p>\n<p>\u4e0d\u7ba1\u52a0\u5165\u591a\u5c11\u91cd\u590d\u5143\u7d20\uff0cHyperLogLog\u90fd\u53ea\u8bb0\u5f55\u4e00\u6b21\uff0c\u5929\u751f\u9002\u5408\u505auv\u7684\u7edf\u8ba1<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728771363f9612105f35.jpg\" class=\"aligncenter\" title=\"Redis\u5b9e\u73b0UV\u7edf\u8ba1\u7684\u793a\u4f8b\u4ee3\u7801\u63d2\u56fe\" alt=\"Redis\u5b9e\u73b0UV\u7edf\u8ba1\u7684\u793a\u4f8b\u4ee3\u7801\u63d2\u56fe\" \/><\/p>\n<h2>\u4e8c\u3001\u5b9e\u73b0UV\u7edf\u8ba1<\/h2>\n<p>\u6211\u4eec\u76f4\u63a5\u7528\u5355\u5143\u6d4b\u8bd5\uff0c\u5411 HyperLogLog \u4e2d\u6dfb\u52a0 100 \u4e07\u6761\u6570\u636e\uff0c\u770b\u770b\u5185\u5b58\u5360\u7528\u548c\u7edf\u8ba1\u6548\u679c\u5982\u4f55\uff1a<\/p>\n<pre>@Test\nvoid testHyperLogLog() {\n    String[] values = new String[1000];\n    int j = 0;\n    for (int i = 0; i \n<p>\u6d4b\u8bd5\u7ed3\u679c\uff1a<\/p>\n<p>\u6211\u4eec\u7edf\u8ba1\u51fa\u6765\u7684\u6570\u636e\u8ddf100\u4e07\u975e\u5e38\u63a5\u8fd1\uff0c\u8bef\u5dee\u57280.02\u3002\u800c\u4e14\u53d1\u73b0\u5185\u5b58\u53ea\u6d88\u8017\u4e8614kb\u975e\u5e38\u975e\u5e38\u4f4e<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aRedis\u5b9e\u73b0UV\u7edf\u8ba1\u7684\u793a\u4f8b\u4ee3\u7801\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~golang\u5b66\u4e60\u7f51\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6570\u636e\u5e93\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p><\/pre>\n<p>   \u7248\u672c\u58f0\u660e \u672c\u6587\u8f6c\u8f7d\u4e8e\uff1a\u811a\u672c\u4e4b\u5bb6 \u5982\u6709\u4fb5\u72af\uff0c\u8bf7\u8054\u7cfb \u5220\u9664  <\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Redis\u7b14\u8bb0\u70b9\u8d5e\u6392\u884c\u699c\u7684\u5b9e\u73b0\u793a\u4f8b\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Redis\u7f13\u5b58\u7684\u4e3b\u8981\u5f02\u5e38\u53ca\u89e3\u51b3\u65b9\u6848\u5b9e\u4f8b\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u5b9e\u73b0UV\u7edf\u8ba1\u7684\u793a\u4f8b\u4ee3\u7801 0\u6d4f\u89c8 \u6536\u85cf \u4eca\u5929golang\u5b66\u4e60\u7f51\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300aRedis\u5b9e\u73b0UV\u7edf\u8ba1\u7684\u793a\u4f8b\u4ee3\u7801\u300b\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ecRedisUV\u7edf\u8ba1\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~ \u4e00\u3001HyperLogLog 1\u3001\u4e3a\u4ec0\u4e48\u7528HyperLogLog \u5148\u4ecb\u7ecd\u4e24\u4e2a\u6982\u5ff5\uff1a UV\uff1a\u5168\u79f0 Unique Visitor\uff0c\u4e5f\u53eb\u72ec\u7acb\u8bbf\u5ba2\u91cf\uff0c\u662f\u6307\u901a\u8fc7\u4e92\u8054\u7f51\u8bbf\u95ee\u3001\u6d4f\u89c8\u8fd9\u4e2a\u7f51\u9875\u7684\u81ea\u7136\u4eba\u30011 \u5929\u5185\u540c\u4e00\u4e2a\u7528\u6237\u591a\u6b21\u8bbf\u95ee\u8be5\u7f51\u7ad9\uff0c\u53ea\u8bb0\u5f55 1 \u6b21\u3002PV\uff1a\u5168\u79f0 Page View\uff0c\u4e5f\u53eb\u9875\u9762\u8bbf\u95ee\u91cf\u6216\u70b9\u51fb\u91cf\uff0c\u7528\u6237\u6bcf\u8bbf\u95ee\u7f51\u7ad9\u7684\u4e00\u4e2a\u9875\u9762\uff0c\u8bb0\u5f55\u4e00\u6b21 PV\uff0c\u7528\u6237\u591a\u6b21\u6253\u5f00\u9875\u9762\uff0c\u5219\u8bb0\u5f55\u591a\u6b21 PV\u3002\u5f80\u5f80\u7528\u6765\u8861\u91cf\u7f51\u7ad9\u7684\u6d41\u91cf\u3002 UV \u7edf\u8ba1\u5728\u670d\u52a1\u7aef\u505a\u4f1a\u6bd4\u8f83\u9ebb\u70e6\uff0c\u56e0\u4e3a\u8981\u5224\u65ad\u8be5\u7528\u6237\u662f\u5426\u5df2\u7ecf\u7edf\u8ba1\u8fc7\u4e86\uff0c\u9700\u8981\u5c06\u7edf\u8ba1\u8fc7\u7684\u7528\u6237\u4fe1\u606f\u4fdd\u5b58\u3002\u4f46\u662f\u5982\u679c\u6bcf\u4e2a\u8bbf\u95ee\u7684\u7528\u6237\u90fd\u4fdd\u5b58\u5230Redis \u4e2d\uff0c\u6570\u636e\u91cf\u4f1a\u975e\u5e38\u6050\u6016\u3002 \u90a3\u4e48\u6211\u4eec\u8981\u600e\u4e48\u66f4\u597d\u7684\u8bb0\u5f55\u5462\uff1f\u5c31\u7528\u5230 HyperLogLog 2\u3001HyperLogLog\u662f\u4ec0\u4e48 HyperLogLog\uff08HLL\uff09\u662f\u4ece Loglog \u7b97\u6cd5\u6d3e\u751f\u7684\u6982\u7387\u7b97\u6cd5\uff0c\u7528\u4e8e\u786e\u5b9a\u975e\u5e38\u5927\u7684\u96c6\u5408\u7684\u57fa\u6570\uff0c\u800c\u4e0d\u9700\u8981\u5b58\u50a8\u5176\u6240\u6709\u503c\u3002 Redis \u4e2d\u7684 HLL \u662f\u57fa\u4e8e String \u7ed3\u6784\u5b9e\u73b0\u7684\uff0c\u5355\u4e2a HLL \u7684\u5185\u5b58\u6c38\u8fdc\u5c0f\u4e8e 16kb\uff0c\u5185\u5b58\u5360\u7528\u4f4e\u7684\u4ee4\u4eba\u53d1\u6307\uff01\u4f5c\u4e3a\u4ee3\u4ef7\uff0c\u5176\u6d4b\u91cf\u7ed3\u679c\u662f\u6982\u7387\u6027\u7684\uff0c\u6709\u5c0f\u4e8e 0.81% \u7684\u8bef\u5dee\u3002\u4e0d\u8fc7\u5bf9\u4e8e UV \u7edf\u8ba1\u6765\u8bf4\uff0c\u8fd9\u5b8c\u5168\u53ef\u4ee5\u5ffd\u7565\u3002 \u4e0d\u7ba1\u52a0\u5165\u591a\u5c11\u91cd\u590d\u5143\u7d20\uff0cHyperLogLog\u90fd\u53ea\u8bb0\u5f55\u4e00\u6b21\uff0c\u5929\u751f\u9002\u5408\u505auv\u7684\u7edf\u8ba1 \u4e8c\u3001\u5b9e\u73b0UV\u7edf\u8ba1 \u6211\u4eec\u76f4\u63a5\u7528\u5355\u5143\u6d4b\u8bd5\uff0c\u5411 HyperLogLog \u4e2d\u6dfb\u52a0 100 \u4e07\u6761\u6570\u636e\uff0c\u770b\u770b\u5185\u5b58\u5360\u7528\u548c\u7edf\u8ba1\u6548\u679c\u5982\u4f55\uff1a @Test void testHyperLogLog() { String[] values = new String[1000]; [&hellip;]<\/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-44443","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/44443","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=44443"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/44443\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=44443"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=44443"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=44443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}