{"id":201584,"date":"2025-05-10T09:41:40","date_gmt":"2025-05-10T01:41:40","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201584\/"},"modified":"2025-05-10T09:41:40","modified_gmt":"2025-05-10T01:41:40","slug":"redis%e7%9a%849%e7%a7%8d%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e7%94%a8%e6%b3%95%e8%a7%a3%e8%af%bb","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201584\/","title":{"rendered":"Redis\u76849\u79cd\u6570\u636e\u7c7b\u578b\u7528\u6cd5\u89e3\u8bfb"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Redis\u76849\u79cd\u6570\u636e\u7c7b\u578b\u7528\u6cd5\u89e3\u8bfb<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aRedis\u76849\u79cd\u6570\u636e\u7c7b\u578b\u7528\u6cd5\u89e3\u8bfb\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<p>\u5728\u5177\u4f53\u63cf\u8ff0\u8fd9\u51e0\u79cd\u6570\u636e\u7c7b\u578b\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u901a\u8fc7\u4e00\u5f20\u56fe\u4e86\u89e3\u4e0b Redis \u5185\u90e8\u5185\u5b58\u7ba1\u7406\u4e2d\u662f\u5982\u4f55\u63cf\u8ff0\u8fd9\u4e9b\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u7684\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779163f9616f7602e.png\" class=\"aligncenter\"><\/p>\n<p>\u9996\u5148Redis\u5185\u90e8\u4f7f\u7528\u4e00\u4e2aredisObject\u5bf9\u8c61\u6765\u8868\u793a\u6240\u6709\u7684key\u548cvalue,redisObject\u6700\u4e3b\u8981\u7684\u4fe1\u606f\u5982\u4e0a\u56fe\u6240\u793a\uff1atype\u4ee3\u8868\u4e00\u4e2avalue\u5bf9\u8c61\u5177\u4f53\u662f\u4f55\u79cd\u6570\u636e\u7c7b\u578b\uff0cencoding\u662f\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u5728redis\u5185\u90e8\u7684\u5b58\u50a8\u65b9\u5f0f\uff0c<\/p>\n<p>\u6bd4\u5982\uff1atype=string\u4ee3\u8868value\u5b58\u50a8\u7684\u662f\u4e00\u4e2a\u666e\u901a\u5b57\u7b26\u4e32\uff0c\u90a3\u4e48\u5bf9\u5e94\u7684encoding\u53ef\u4ee5\u662fraw\u6216\u8005\u662fint,\u5982\u679c\u662fint\u5219\u4ee3\u8868\u5b9e\u9645redis\u5185\u90e8\u662f\u6309\u6570\u503c\u578b\u7c7b\u5b58\u50a8\u548c\u8868\u793a\u8fd9\u4e2a\u5b57\u7b26\u4e32\u7684\uff0c\u5f53\u7136\u524d\u63d0\u662f\u8fd9\u4e2a\u5b57\u7b26\u4e32\u672c\u8eab\u53ef\u4ee5\u7528\u6570\u503c\u8868\u793a\uff0c\u6bd4\u5982:&#8221;123&#8243; &#8220;456&#8221;\u8fd9\u6837\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<p>\u8fd9\u9700\u8981\u7279\u6b8a\u8bf4\u660e\u4e00\u4e0bvm\u5b57\u6bb5\uff0c\u53ea\u6709\u6253\u5f00\u4e86Redis\u7684\u865a\u62df\u5185\u5b58\u529f\u80fd\uff0c\u6b64\u5b57\u6bb5\u624d\u4f1a\u771f\u6b63\u7684\u5206\u914d\u5185\u5b58\uff0c\u8be5\u529f\u80fd\u9ed8\u8ba4\u662f\u5173\u95ed\u72b6\u6001\u7684\uff0c\u8be5\u529f\u80fd\u4f1a\u5728\u540e\u9762\u5177\u4f53\u63cf\u8ff0\u3002<\/p>\n<p>\u901a\u8fc7\u4e0a\u56fe\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0Redis\u4f7f\u7528redisObject\u6765\u8868\u793a\u6240\u6709\u7684key\/value\u6570\u636e\u662f\u6bd4\u8f83\u6d6a\u8d39\u5185\u5b58\u7684\uff0c\u5f53\u7136\u8fd9\u4e9b\u5185\u5b58\u7ba1\u7406\u6210\u672c\u7684\u4ed8\u51fa\u4e3b\u8981\u4e5f\u662f\u4e3a\u4e86\u7ed9Redis\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u63d0\u4f9b\u4e00\u4e2a\u7edf\u4e00\u7684\u7ba1\u7406\u63a5\u53e3\uff0c\u5b9e\u9645\u4f5c\u8005\u4e5f\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u5e2e\u52a9\u6211\u4eec\u5c3d\u91cf\u8282\u7701\u5185\u5b58\u4f7f\u7528\uff0c\u6211\u4eec\u968f\u540e\u4f1a\u5177\u4f53\u8ba8\u8bba\u3002<\/p>\n<h2>redis\u652f\u6301\u4e30\u5bcc\u7684\u6570\u636e\u7c7b\u578b<\/h2>\n<p><strong>\u4e0d\u540c\u7684\u573a\u666f\u4f7f\u7528\u5408\u9002\u7684\u6570\u636e\u7c7b\u578b\u53ef\u4ee5\u6709\u6548\u7684\u4f18\u5316\u5185\u5b58\u6570\u636e\u7684\u5b58\u653e\u7a7a\u95f4\uff1a<\/strong><\/p>\n<ul>\n<li>string\uff1a\u6700\u57fa\u672c\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4e8c\u8fdb\u5236\u5b89\u5168\u7684\u5b57\u7b26\u4e32\uff0c\u6700\u5927512M\u3002<\/li>\n<li>list\uff1a\u6309\u7167\u6dfb\u52a0\u987a\u5e8f\u4fdd\u6301\u987a\u5e8f\u7684\u5b57\u7b26\u4e32\u5217\u8868\u3002<\/li>\n<li>set\uff1a\u65e0\u5e8f\u7684\u5b57\u7b26\u4e32\u96c6\u5408\uff0c\u4e0d\u5b58\u5728\u91cd\u590d\u7684\u5143\u7d20\u3002<\/li>\n<li>sorted set\uff1a\u5df2\u6392\u5e8f\u7684\u5b57\u7b26\u4e32\u96c6\u5408\u3002<\/li>\n<li>hash\uff1akey-value\u5bf9\u7684\u4e00\u79cd\u96c6\u5408\u3002<\/li>\n<li>bitmap\uff1a\u66f4\u7ec6\u5316\u7684\u4e00\u79cd\u64cd\u4f5c\uff0c\u4ee5bit\u4e3a\u5355\u4f4d\u3002<\/li>\n<li>hyperloglog\uff1a\u57fa\u4e8e\u6982\u7387\u7684\u6570\u636e\u7ed3\u6784\u3002 # 2.8.9\u65b0\u589e<\/li>\n<li>Geo:\u5730\u7406\u4f4d\u7f6e\u4fe1\u606f\u50a8\u5b58\u8d77\u6765\uff0c \u5e76\u5bf9\u8fd9\u4e9b\u4fe1\u606f\u8fdb\u884c\u64cd\u4f5c &nbsp; # 3.2\u65b0\u589e<\/li>\n<li>\u6d41\uff08Stream\uff09# 5.0\u65b0\u589e<\/li>\n<\/ul>\n<h2>String&nbsp;\u5b57\u7b26\u4e32<\/h2>\n<p>\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n<p>setnx,set,get,decr,incr,mget \u7b49\u3002<\/p>\n<h3>\u5e94\u7528\u573a\u666f<\/h3>\n<p>\u5b57\u7b26\u4e32\u662f\u6700\u5e38\u7528\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4ed6\u80fd\u591f\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u5b57\u7b26\u4e32\uff0c\u5f53\u7136\u4e5f\u5305\u62ec\u4e8c\u8fdb\u5236\u3001JSON\u5316\u7684\u5bf9\u8c61\u3001\u751a\u81f3\u662fBase64\u7f16\u7801\u4e4b\u540e\u7684\u56fe\u7247\u3002<\/p>\n<p>\u5728Redis\u4e2d\u4e00\u4e2a\u5b57\u7b26\u4e32\u6700\u5927\u7684\u5bb9\u91cf\u4e3a512MB\uff0c\u53ef\u4ee5\u8bf4\u662f\u65e0\u6240\u4e0d\u80fd\u4e86\u3002redis\u7684key\u548cstring\u7c7b\u578bvalue\u9650\u5236\u5747\u4e3a512MB\u3002<\/p>\n<p>\u867d\u7136Key\u7684\u5927\u5c0f\u4e0a\u9650\u4e3a512M,\u4f46\u662f\u4e00\u822c\u5efa\u8baekey\u7684\u5927\u5c0f\u4e0d\u8981\u8d85\u8fc71KB\uff0c\u8fd9\u6837\u65e2\u53ef\u4ee5\u8282\u7ea6\u5b58\u50a8\u7a7a\u95f4\uff0c\u53c8\u6709\u5229\u4e8eRedis\u8fdb\u884c\u68c0\u7d22<\/p>\n<ul>\n<li>\u7f13\u5b58\uff0c\u70ed\u70b9\u6570\u636e<\/li>\n<li>\u5206\u5e03\u5f0fsession<\/li>\n<li>\u5206\u5e03\u5f0f\u9501<\/li>\n<li>INCR\u8ba1\u6570\u5668<\/li>\n<li>\u6587\u7ae0\u7684\u9605\u8bfb\u91cf\uff0c\u5fae\u535a\u70b9\u8d5e\u6570\uff0c\u5141\u8bb8\u4e00\u5b9a\u7684\u5ef6\u8fdf\uff0c\u5148\u5199\u5165 Redis \u518d\u5b9a\u65f6\u540c\u6b65\u5230\u6570\u636e\u5e93<\/li>\n<li>\u5168\u5c40ID<\/li>\n<li>INT \u7c7b\u578b\uff0cINCRBY\uff0c\u5229\u7528\u539f\u5b50\u6027<\/li>\n<li>INCR \u9650\u6d41<\/li>\n<li>\u4ee5\u8bbf\u95ee\u8005\u7684 IP \u548c\u5176\u4ed6\u4fe1\u606f\u4f5c\u4e3a key\uff0c\u8bbf\u95ee\u4e00\u6b21\u589e\u52a0\u4e00\u6b21\u8ba1\u6570\uff0c\u8d85\u8fc7\u6b21\u6570\u5219\u8fd4\u56de false\u3002<\/li>\n<li>setbit \u4f4d\u64cd\u4f5c<\/li>\n<\/ul>\n<h3>\u5185\u90e8\u7f16\u7801<\/h3>\n<ul>\n<li>int\uff1a8 \u4e2a\u5b57\u8282\u7684\u957f\u6574\u578b\uff08long\uff0c2^63-1\uff09<\/li>\n<li>embstr\uff1a\u5c0f\u4e8e\u7b49\u4e8e44\u4e2a\u5b57\u8282\u7684\u5b57\u7b26\u4e32\uff0cembstr\u683c\u5f0f\u7684SDS\uff08Simple Dynamic String\uff09<\/li>\n<li>raw\uff1aSDS\u5927\u4e8e 44 \u4e2a\u5b57\u8282\u7684\u5b57\u7b26\u4e32<\/li>\n<\/ul>\n<p>\u63a5\u4e0b\u6765\u5c31\u662febmstr\u548craw\u4e24\u79cd\u5185\u90e8\u7f16\u7801\u7684\u957f\u5ea6\u754c\u9650\uff0c\u8bf7\u770b\u4e0b\u9762\u7684\u6e90\u7801<\/p>\n<pre>#define OBJ_ENCODING_EMBSTR_SIZE_LIMIT 44\nrobj *createStringObject(const char *ptr, size_t len) {\n    if (len \n\n<p>\u901a\u8fc7\u4e0b\u56fe\u53ef\u4ee5\u76f4\u89c2\u611f\u53d7\u4e00\u4e0b\u5b57\u7b26\u4e32\u7c7b\u578b\u548c\u54c8\u5e0c\u7c7b\u578b\u7684\u533a\u522b\uff1a<\/p>\n<p style=\"text-align:center\"><br><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779163f9616fc3128.png\" class=\"aligncenter\"><\/p>\n<p>redis \u4e3a\u4ec0\u4e48\u8981\u81ea\u5df1\u5199\u4e00\u4e2aSDS\u7684\u6570\u636e\u7c7b\u578b\uff0c<strong>\u4e3b\u8981\u662f\u4e3a\u4e86\u89e3\u51b3C\u8bed\u8a00 char[] \u7684\u56db\u4e2a\u95ee\u9898<\/strong><\/p>\n<\/pre>\n<ul>\n<li>\u5b57\u7b26\u6570\u7ec4\u5fc5\u987b\u5148\u7ed9\u76ee\u6807\u53d8\u91cf\u5206\u914d\u8db3\u591f\u7684\u7a7a\u95f4\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u6ea2\u51fa<\/li>\n<li>\u67e5\u8be2\u5b57\u7b26\u6570\u7ec4\u957f\u5ea6 \u65f6\u95f4\u590d\u6742\u5ea6O(n)<\/li>\n<li>\u957f\u5ea6\u53d8\u5316\uff0c\u9700\u8981\u91cd\u65b0\u5206\u914d\u5185\u5b58<\/li>\n<li>\u901a\u8fc7\u4ece\u5b57\u7b26\u4e32\u5f00\u59cb\u5230\u7ed3\u5c3e\u78b0\u5230\u7684\u7b2c\u4e00\u4e2a\\0\u6765\u6807\u8bb0\u5b57\u7b26\u4e32\u7684\u7ed3\u675f\uff0c\u56e0\u6b64\u4e0d\u80fd\u4fdd\u5b58\u56fe\u7247\u3001\u97f3\u9891\u3001\u89c6\u9891\u3001\u538b\u7f29\u6587\u4ef6\u7b49\u4e8c\u8fdb\u5236(bytes)\u4fdd\u5b58\u7684\u5185\u5bb9\uff0c\u4e8c\u8fdb\u5236\u4e0d\u5b89\u5168<\/li>\n<\/ul>\n<p><strong>redis SDS<\/strong><\/p>\n<ul>\n<li>\u4e0d\u7528\u62c5\u5fc3\u5185\u5b58\u6ea2\u51fa\u95ee\u9898\uff0c\u5982\u679c\u9700\u8981\u4f1a\u5bf9 SDS \u8fdb\u884c\u6269\u5bb9<\/li>\n<li>\u56e0\u4e3a\u5b9a\u4e49\u4e86 len \u5c5e\u6027\uff0c\u67e5\u8be2\u6570\u7ec4\u957f\u5ea6\u65f6\u95f4\u590d\u6742\u5ea6O(1) \u56fa\u5b9a\u957f\u5ea6<\/li>\n<li>\u7a7a\u95f4\u9884\u5206\u914d\uff0c\u60f0\u6027\u7a7a\u95f4\u91ca\u653e<\/li>\n<li>\u6839\u636e\u957f\u5ea6 len\u6765\u5224\u65ad\u662f\u7ed3\u675f\uff0c\u800c\u4e0d\u662f \\0<\/li>\n<\/ul>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779263f961700a66d.png\" class=\"aligncenter\"><\/p>\n<p><strong>\u4e3a\u4ec0\u4e48\u8981\u6709embstr\u7f16\u7801\u5462\uff1f\u4ed6\u6bd4raw\u7684\u4f18\u52bf\u5728\u54ea\u91cc\uff1f<\/strong><\/p>\n<p>embstr\u7f16\u7801\u5c06\u521b\u5efa\u5b57\u7b26\u4e32\u5bf9\u8c61\u6240\u9700\u7684\u7a7a\u95f4\u5206\u914d\u7684\u6b21\u6570\u4eceraw\u7f16\u7801\u7684\u4e24\u6b21\u964d\u4f4e\u4e3a\u4e00\u6b21\u3002<\/p>\n<p>\u56e0\u4e3aemstr\u7f16\u7801\u5b57\u7b26\u4e32\u7684\u7d20\u6709\u5bf9\u8c61\u4fdd\u6301\u5728\u4e00\u5757\u8fde\u7eed\u7684\u5185\u5b58\u91cc\u9762\uff0c\u6240\u4ee5\u90a3\u4e2a\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u5bf9\u8c61\u6bd4\u8d77raw\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u5bf9\u8c61\u80fd\u66f4\u597d\u7684\u5229\u7528\u7f13\u5b58\u3002<\/p>\n<p>\u5e76\u4e14\u91ca\u653eembstr\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u5bf9\u8c61\u53ea\u9700\u8981\u8c03\u7528\u4e00\u6b21\u5185\u5b58\u91ca\u653e\u51fd\u6570\uff0c\u800c\u91ca\u653eraw\u7f16\u7801\u5bf9\u8c61\u7684\u5b57\u7b26\u4e32\u5bf9\u8c61\u9700\u8981\u8c03\u7528\u4e24\u6b21\u5185\u5b58\u91ca\u653e\u51fd\u6570\uff0c\u5982\u56fe\u6240\u793a\uff0c\u5de6\u8fb9emstr\u7f16\u7801\uff0c\u53f3\u8fb9\u662fraw\u7f16\u7801\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779263f9617048d6c.jpg\" class=\"aligncenter\"><\/p>\n<h2>Hash&nbsp;\u54c8\u5e0c\u8868<\/h2>\n<p>\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n<p>hget,hsetnx,hset,hvals,hgetall,hmset,hmget \u7b49\u3002<\/p>\n<pre>redis&gt; HSET phone myphone nokia-1110\n(integer) 1\n \nredis&gt; HEXISTS phone myphone\n(integer) 1\n \nredis&gt; HSET people jack \"Jack Sparrow\"\n(integer) 1\n \nredis&gt; HSET people gump \"Forrest Gump\"\n(integer) 1\n \nredis&gt; HGETALL people\n1) \"jack\"          # \u57df\n2) \"Jack Sparrow\"  # \u503c\n3) \"gump\"\n4) \"Forrest Gump\"<\/pre>\n<h3>\u5e94\u7528\u573a\u666f<\/h3>\n<p>\u6211\u4eec\u7b80\u5355\u4e3e\u4e2a\u5b9e\u4f8b\u6765\u63cf\u8ff0\u4e0b Hash \u7684\u5e94\u7528\u573a\u666f\uff0c\u6bd4\u5982\u6211\u4eec\u8981\u5b58\u50a8\u4e00\u4e2a\u7528\u6237\u4fe1\u606f\u5bf9\u8c61\u6570\u636e\uff0c\u5305\u542b\u4ee5\u4e0b\u4fe1\u606f\uff1a\u7528\u6237 ID \u4e3a\u67e5\u627e\u7684 key\uff0c\u5b58\u50a8\u7684 value \u7528\u6237\u5bf9\u8c61\u5305\u542b\u59d3\u540d\uff0c\u5e74\u9f84\uff0c\u751f\u65e5\u7b49\u4fe1\u606f\uff0c\u5982\u679c\u7528\u666e\u901a\u7684 key\/value \u7ed3\u6784\u6765\u5b58\u50a8\uff0c\u4e3b\u8981\u6709\u4ee5\u4e0b2\u79cd\u5b58\u50a8\u65b9\u5f0f\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779263f96170898a9.png\" class=\"aligncenter\"><\/p>\n<p>\u7b2c\u4e00\u79cd\u65b9\u5f0f\u5c06\u7528\u6237 ID \u4f5c\u4e3a\u67e5\u627e key\uff0c\u628a\u5176\u4ed6\u4fe1\u606f\u5c01\u88c5\u6210\u4e00\u4e2a\u5bf9\u8c61\u4ee5\u5e8f\u5217\u5316\u7684\u65b9\u5f0f\u5b58\u50a8\uff0c\u8fd9\u79cd\u65b9\u5f0f\u7684\u7f3a\u70b9\u662f\uff0c\u589e\u52a0\u4e86\u5e8f\u5217\u5316\/\u53cd\u5e8f\u5217\u5316\u7684\u5f00\u9500\uff0c\u5e76\u4e14\u5728\u9700\u8981\u4fee\u6539\u5176\u4e2d\u4e00\u9879\u4fe1\u606f\u65f6\uff0c\u9700\u8981\u628a\u6574\u4e2a\u5bf9\u8c61\u53d6\u56de\uff0c\u5e76\u4e14\u4fee\u6539\u64cd\u4f5c\u9700\u8981\u5bf9\u5e76\u53d1\u8fdb\u884c\u4fdd\u62a4\uff0c\u5f15\u5165CAS\u7b49\u590d\u6742\u95ee\u9898\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779263f96170d9567.png\" class=\"aligncenter\"><\/p>\n<p>\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u662f\u8fd9\u4e2a\u7528\u6237\u4fe1\u606f\u5bf9\u8c61\u6709\u591a\u5c11\u6210\u5458\u5c31\u5b58\u6210\u591a\u5c11\u4e2a key-value \u5bf9\u513f\uff0c\u7528\u7528\u6237 ID +\u5bf9\u5e94\u5c5e\u6027\u7684\u540d\u79f0\u4f5c\u4e3a\u552f\u4e00\u6807\u8bc6\u6765\u53d6\u5f97\u5bf9\u5e94\u5c5e\u6027\u7684\u503c\uff0c\u867d\u7136\u7701\u53bb\u4e86\u5e8f\u5217\u5316\u5f00\u9500\u548c\u5e76\u53d1\u95ee\u9898\uff0c\u4f46\u662f\u7528\u6237 ID \u4e3a\u91cd\u590d\u5b58\u50a8\uff0c\u5982\u679c\u5b58\u5728\u5927\u91cf\u8fd9\u6837\u7684\u6570\u636e\uff0c\u5185\u5b58\u6d6a\u8d39\u8fd8\u662f\u975e\u5e38\u53ef\u89c2\u7684\u3002<\/p>\n<p>\u90a3\u4e48 Redis \u63d0\u4f9b\u7684 Hash \u5f88\u597d\u7684\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\uff0cRedis \u7684 Hash \u5b9e\u9645\u662f\u5185\u90e8\u5b58\u50a8\u7684 Value \u4e3a\u4e00\u4e2a HashMap\uff0c\u5e76\u63d0\u4f9b\u4e86\u76f4\u63a5\u5b58\u53d6\u8fd9\u4e2a Map \u6210\u5458\u7684\u63a5\u53e3\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779363f961713e81d.png\" class=\"aligncenter\"><\/p>\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0cKey \u4ecd\u7136\u662f\u7528\u6237 ID\uff0cvalue \u662f\u4e00\u4e2a Map\uff0c\u8fd9\u4e2a Map \u7684 key \u662f\u6210\u5458\u7684\u5c5e\u6027\u540d\uff0cvalue \u662f\u5c5e\u6027\u503c\uff0c\u8fd9\u6837\u5bf9\u6570\u636e\u7684\u4fee\u6539\u548c\u5b58\u53d6\u90fd\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7\u5176\u5185\u90e8 Map \u7684 Key\uff08Redis \u91cc\u79f0\u5185\u90e8 Map \u7684 key \u4e3a field\uff09\uff0c\u4e5f\u5c31\u662f\u901a\u8fc7 key\uff08\u7528\u6237 ID\uff09 + field\uff08\u5c5e\u6027\u6807\u7b7e\uff09\u5c31\u53ef\u4ee5\u64cd\u4f5c\u5bf9\u5e94\u5c5e\u6027\u6570\u636e\u4e86\uff0c\u65e2\u4e0d\u9700\u8981\u91cd\u590d\u5b58\u50a8\u6570\u636e\uff0c\u4e5f\u4e0d\u4f1a\u5e26\u6765\u5e8f\u5217\u5316\u548c\u5e76\u53d1\u4fee\u6539\u63a7\u5236\u7684\u95ee\u9898\u3002\u5f88\u597d\u7684\u89e3\u51b3\u4e86\u95ee\u9898\u3002<\/p>\n<p>\u8fd9\u91cc\u540c\u65f6\u9700\u8981\u6ce8\u610f\uff0cRedis \u63d0\u4f9b\u4e86\u63a5\u53e3\uff08hgetall\uff09\u53ef\u4ee5\u76f4\u63a5\u53d6\u5230\u5168\u90e8\u7684\u5c5e\u6027\u6570\u636e\uff0c\u4f46\u662f\u5982\u679c\u5185\u90e8 Map \u7684\u6210\u5458\u5f88\u591a\uff0c\u90a3\u4e48\u6d89\u53ca\u5230\u904d\u5386\u6574\u4e2a\u5185\u90e8 Map \u7684\u64cd\u4f5c\uff0c\u7531\u4e8e Redis \u5355\u7ebf\u7a0b\u6a21\u578b\u7684\u7f18\u6545\uff0c\u8fd9\u4e2a\u904d\u5386\u64cd\u4f5c\u53ef\u80fd\u4f1a\u6bd4\u8f83\u8017\u65f6\uff0c\u800c\u53e6\u5176\u5b83\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u5b8c\u5168\u4e0d\u54cd\u5e94\uff0c\u8fd9\u70b9\u9700\u8981\u683c\u5916\u6ce8\u610f\u3002<\/p>\n<p>&nbsp;\u8d2d\u7269\u8f66<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779363f961717a7f7.jpg\" class=\"aligncenter\"><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779363f96171c3803.png\" class=\"aligncenter\"><\/p>\n<h3>\u5185\u90e8\u7f16\u7801&nbsp; &nbsp; &nbsp;<\/h3>\n<ul>\n<li>ziplist\uff08\u538b\u7f29\u5217\u8868\uff09\uff1a\u5f53\u54c8\u5e0c\u7c7b\u578b\u4e2d\u5143\u7d20\u4e2a\u6570\u5c0f\u4e8e hash-max-ziplist-entries \u914d\u7f6e\uff08\u9ed8\u8ba4 512 \u4e2a\uff09\uff0c\u540c\u65f6\u6240\u6709\u503c\u90fd\u5c0f\u4e8e hash-max-ziplist-value \u914d\u7f6e\uff08\u9ed8\u8ba4 64 \u5b57\u8282\uff09\u65f6\uff0cRedis \u4f1a\u4f7f\u7528 ziplist \u4f5c\u4e3a\u54c8\u5e0c\u7684\u5185\u90e8\u5b9e\u73b0\u3002<\/li>\n<li>hashtable\uff08\u54c8\u5e0c\u8868\uff09\uff1a\u5f53\u4e0a\u8ff0\u6761\u4ef6\u4e0d\u6ee1\u8db3\u65f6\uff0cRedis \u5219\u4f1a\u91c7\u7528 hashtable \u4f5c\u4e3a\u54c8\u5e0c\u7684\u5185\u90e8\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u6211\u4eec\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u6765\u6f14\u793a\u4e00\u4e0b ziplist \u548c hashtable \u8fd9\u4e24\u79cd\u5185\u90e8\u7f16\u7801\u3002<\/p>\n<p>\u5f53 field \u4e2a\u6570\u6bd4\u8f83\u5c11\u5e76\u4e14 value \u4e5f\u4e0d\u662f\u5f88\u5927\u65f6\u5019 Redis \u54c8\u5e0c\u7c7b\u578b\u7684\u5185\u90e8\u7f16\u7801\u4e3a ziplist\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779463f96172093ad.png\" class=\"aligncenter\"><\/p>\n<p>\u5f53 value \u4e2d\u7684\u5b57\u8282\u6570\u5927\u4e8e 64 \u5b57\u8282\u65f6\uff08\u53ef\u4ee5\u901a\u8fc7 hash-max-ziplist-value \u8bbe\u7f6e\uff09\uff0c\u5185\u90e8\u7f16\u7801\u4f1a\u7531 ziplist \u53d8\u6210 hashtable\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779463f9617249df7.png\" class=\"aligncenter\"><\/p>\n<p>\u5f53 field \u4e2a\u6570\u8d85\u8fc7 512\uff08\u53ef\u4ee5\u901a\u8fc7 hash-max-ziplist-entries \u53c2\u6570\u8bbe\u7f6e\uff09\uff0c\u5185\u90e8\u7f16\u7801\u4e5f\u4f1a\u7531 ziplist \u53d8\u6210 hashtable<\/p>\n<h2>List&nbsp;\u5217\u8868<\/h2>\n<p>\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n<p>lpush,rpush,lpop,rpop,lrange\u7b49\u3002<\/p>\n<pre>127.0.0.1:6379&gt; lpush list one   # \u5c06\u4e00\u4e2a\u503c\u6216\u8005\u591a\u4e2a\u503c\uff0c\u63d2\u5165\u5230\u5217\u8868\u7684\u5934\u90e8\uff08\u5de6\uff09(integer) 1\n127.0.0.1:6379&gt; lpush list two\n(integer) 2\n127.0.0.1:6379&gt; lpush list three \n(integer) 3\n127.0.0.1:6379&gt; lrange list 0 -1   # \u67e5\u770b\u5168\u90e8\u5143\u7d20\n1) \"three\"\n2) \"two\"\n3) \"one\"\n127.0.0.1:6379&gt; lrange list 0 1    # \u901a\u8fc7\u533a\u95f4\u83b7\u53d6\u503c\n1) \"three\"\n2) \"two\"\n127.0.0.1:6379&gt; rpush list right   # \u5c06\u4e00\u4e2a\u503c\u6216\u8005\u591a\u4e2a\u503c\uff0c\u63d2\u5165\u5230\u5217\u8868\u7684\u5c3e\u90e8\uff08\u53f3\uff09(integer) 4\n127.0.0.1:6379&gt; lrange list 0 -1\n1) \"three\"\n2) \"two\"\n3) \"one\"\n4) \"right\"\n127.0.0.1:6379&gt;<\/pre>\n<p>\u5217\u8868\uff08list\uff09\u7528\u6765\u5b58\u50a8\u591a\u4e2a\u6709\u5e8f\u7684\u5b57\u7b26\u4e32\uff0c\u6bcf\u4e2a\u5b57\u7b26\u4e32\u79f0\u4e3a\u5143\u7d20\uff1b\u4e00\u4e2a\u5217\u8868\u53ef\u4ee5\u5b58\u50a82^32-1\u4e2a\u5143\u7d20\u3002Redis\u4e2d\u7684\u5217\u8868\u652f\u6301\u4e24\u7aef\u63d2\u5165\u548c\u5f39\u51fa\uff0c\u5e76\u53ef\u4ee5\u83b7\u5f97\u6307\u5b9a\u4f4d\u7f6e\uff08\u6216\u8303\u56f4\uff09\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u5145\u5f53\u6570\u7ec4\u3001\u961f\u5217\u3001\u6808\u7b49<\/p>\n<h3>\u5e94\u7528\u573a\u666f<\/h3>\n<p>\u6bd4\u5982 twitter \u7684\u5173\u6ce8\u5217\u8868\uff0c\u7c89\u4e1d\u5217\u8868\u7b49\u90fd\u53ef\u4ee5\u7528 Redis \u7684 list \u7ed3\u6784\u6765\u5b9e\u73b0\uff0c\u53ef\u4ee5\u5229\u7528lrange\u547d\u4ee4\uff0c\u505a\u57fa\u4e8eRedis\u7684\u5206\u9875\u529f\u80fd\uff0c\u6027\u80fd\u6781\u4f73\uff0c\u7528\u6237\u4f53\u9a8c\u597d\u3002<\/p>\n<p><strong>\u6d88\u606f\u961f\u5217<\/strong><\/p>\n<p>\u5217\u8868\u7c7b\u578b\u53ef\u4ee5\u4f7f\u7528 rpush \u5b9e\u73b0\u5148\u8fdb\u5148\u51fa\u7684\u529f\u80fd\uff0c\u540c\u65f6\u53c8\u53ef\u4ee5\u4f7f\u7528 lpop \u8f7b\u677e\u7684\u5f39\u51fa\uff08\u67e5\u8be2\u5e76\u5220\u9664\uff09\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u6240\u4ee5\u5217\u8868\u7c7b\u578b\u53ef\u4ee5\u7528\u6765\u5b9e\u73b0\u6d88\u606f\u961f\u5217<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779463f9617289659.png\" class=\"aligncenter\"><\/p>\n<p><strong>\u53d1\u7ea2\u5305\u7684\u573a\u666f<\/strong><\/p>\n<p>\u5728\u53d1\u7ea2\u5305\u7684\u573a\u666f\u4e2d\uff0c\u5047\u8bbe\u53d1\u4e00\u4e2a10\u5143\uff0c10\u4e2a\u7ea2\u5305\uff0c\u9700\u8981\u4fdd\u8bc1\u62a2\u7ea2\u5305\u7684\u4eba\u4e0d\u4f1a\u591a\u62a2\u5230\uff0c\u4e5f\u4e0d\u4f1a\u5c11\u62a2\u5230<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779463f96172d3809.png\" class=\"aligncenter\"><\/p>\n<p>\u4e0b\u9762\u6211\u4eec\u901a\u8fc7\u4e0b\u56fe\u6765\u770b\u4e00\u4e0b Redis \u4e2d\u5217\u8868\u7c7b\u578b\u7684\u63d2\u5165\u548c\u5f39\u51fa\u64cd\u4f5c\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779563f9617321032.png\" class=\"aligncenter\"><\/p>\n<p>\u4e0b\u9762\u6211\u4eec\u770b\u4e00\u4e0b Redis \u4e2d\u5217\u8868\u7c7b\u578b\u7684\u83b7\u53d6\u4e0e\u5220\u9664\u64cd\u4f5c\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779563f961736de1a.png\" class=\"aligncenter\"><\/p>\n<p><strong>Redis \u5217\u8868\u7c7b\u578b\u7684\u7279\u70b9\u5982\u4e0b\uff1a<\/strong><\/p>\n<ul>\n<li>\u5217\u8868\u4e2d\u6240\u6709\u7684\u5143\u7d20\u90fd\u662f\u6709\u5e8f\u7684\uff0c\u6240\u4ee5\u5b83\u4eec\u662f\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u83b7\u53d6\u7684lindex \u547d\u4ee4\u3002\u5e76\u4e14\u5728 Redis \u4e2d\u5217\u8868\u7c7b\u578b\u7684\u7d22\u5f15\u662f\u4ece 0 \u5f00\u59cb\u7684\u3002<\/li>\n<li>\u5217\u8868\u4e2d\u7684\u5143\u7d20\u662f\u53ef\u4ee5\u91cd\u590d\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\u5728 Redis \u5217\u8868\u7c7b\u578b\u4e2d\uff0c\u53ef\u4ee5\u4fdd\u5b58\u540c\u540d\u5143\u7d20<\/li>\n<\/ul>\n<h3>\u5185\u90e8\u7f16\u7801<\/h3>\n<ul>\n<li>ziplist\uff08\u538b\u7f29\u5217\u8868\uff09\uff1a\u5f53\u5217\u8868\u4e2d\u5143\u7d20\u4e2a\u6570\u5c0f\u4e8e 512\uff08\u9ed8\u8ba4\uff09\u4e2a\uff0c\u5e76\u4e14\u5217\u8868\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684\u503c\u90fd\u5c0f\u4e8e 64\uff08\u9ed8\u8ba4\uff09\u4e2a\u5b57\u8282\u65f6\uff0cRedis \u4f1a\u9009\u62e9\u7528 ziplist \u6765\u4f5c\u4e3a\u5217\u8868\u7684\u5185\u90e8\u5b9e\u73b0\u4ee5\u51cf\u5c11\u5185\u5b58\u7684\u4f7f\u7528\u3002\u5f53\u7136\u4e0a\u8ff0\u9ed8\u8ba4\u503c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u76f8\u5173\u53c2\u6570\u4fee\u6539\uff1alist-max-ziplist-entried\uff08\u5143\u7d20\u4e2a\u6570\uff09\u3001list-max-ziplist-value(\u5143\u7d20\u503c)\u3002<\/li>\n<li>linkedlist\uff08\u94fe\u8868\uff09\uff1a\u5f53\u5217\u8868\u7c7b\u578b\u65e0\u6cd5\u6ee1\u8db3 ziplist \u6761\u4ef6\u65f6\uff0cRedis \u4f1a\u9009\u62e9\u7528 linkedlist \u4f5c\u4e3a\u5217\u8868\u7684\u5185\u90e8\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n<h2>Set&nbsp;\u96c6\u5408<\/h2>\n<p>\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n<p>sadd,spop,smembers,sunion,scard,sscan,sismember\u7b49\u3002<\/p>\n<pre># \u521d\u59cb\u5316\nsadd poker T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 TJ TQ TK X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 XJ XQ XK M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 MJ MQ MK F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 FJ FQ FK XW DW\n \n# \u6570\u91cf\nscard poker\n \n# \u590d\u7528\u6251\u514b\u724c\nsunionstore pokernew poker\n \n# \u6210\u5458\nsmembers poker\n \n# \u662f\u5426\u5305\u542b\nsismember poker T1\n \n# \u968f\u673a\u8bfb\u53d6\nspop poker\n \n# \u8bbe\u7f6e\nsadd user1tag tagID1 tagID2 tagID3\nsadd user2tag tagID2 tagID3\nsadd user3tag tagID2 tagID4 tagID5\n \n# \u83b7\u53d6\u5171\u540c\u62e5\u6709\u7684tag\uff08\u4ea4\u96c6\uff09\nsinter user1tag user2tag user3tag\n \n# \u83b7\u53d6\u62e5\u6709\u7684\u6240\u6709tag\uff08\u5e76\u96c6\uff09\nsunion user1tag user2tag user3tag\n \n# \u83b7\u53d6\u4e24\u4e2a\u4e4b\u95f4\u7684\u533a\u522b\uff08\u5dee\u96c6\uff09\nsdiff user2tag user3tag<\/pre>\n<h3>\u5e94\u7528\u573a\u666f<\/h3>\n<p>Redis set \u5bf9\u5916\u63d0\u4f9b\u7684\u529f\u80fd\u4e0e list \u7c7b\u4f3c\u662f\u4e00\u4e2a\u5217\u8868\u7684\u529f\u80fd\uff0c\u7279\u6b8a\u4e4b\u5904\u5728\u4e8e set \u662f\u53ef\u4ee5\u81ea\u52a8\u6392\u91cd\u7684\uff0c\u5f53\u4f60\u9700\u8981\u5b58\u50a8\u4e00\u4e2a\u5217\u8868\u6570\u636e\uff0c\u53c8\u4e0d\u5e0c\u671b\u51fa\u73b0\u91cd\u590d\u6570\u636e\u65f6\uff0cset \u662f\u4e00\u4e2a\u5f88\u597d\u7684\u9009\u62e9\uff0c\u5e76\u4e14 set \u63d0\u4f9b\u4e86\u5224\u65ad\u67d0\u4e2a\u6210\u5458\u662f\u5426\u5728\u4e00\u4e2a set \u96c6\u5408\u5185\u7684\u91cd\u8981\u63a5\u53e3\uff0c\u8fd9\u4e2a\u4e5f\u662f list \u6240\u4e0d\u80fd\u63d0\u4f9b\u7684\u3002<\/p>\n<p>1\u77e5\u4e4e\u70b9\u8d5e\u6570<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779563f96173bb6ef.jpg\" class=\"aligncenter\"><\/p>\n<p>2\u4eac\u4e1c\u7684\u5546\u54c1\u7b5b\u9009<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779663f9617416d4b.png\" class=\"aligncenter\"><\/p>\n<pre>127.0.0.1:6379&gt; sadd brand:apple iPhone11\n(integer) 1\n127.0.0.1:6379&gt; sadd brand:ios iPhone11\n(integer) 1\n127.0.0.1:6379&gt; sadd screensize:6.0-6.24 iPhone11\n(integer) 1\n127.0.0.1:6379&gt; sadd memorysize:256GB iPhone11\n(integer) 1\n127.0.0.1:6379&gt; sinter brand:apple brand:ios screensize:6.0-6.24 memorysize:256GB\n1) \"iPhone11\"<\/pre>\n<p>\u7b5b\u9009\u5546\u54c1\uff0c\u82f9\u679c\uff0cIOS\uff0c\u5c4f\u5e556.0-6.24\uff0c\u5185\u5b58\u5927\u5c0f256G<\/p>\n<blockquote>\n<p>sinter brand:apple brand:ios screensize:6.0-6.24 memorysize:256GB<\/p>\n<\/blockquote>\n<p>3.\u5b58\u50a8\u793e\u4ea4\u5173\u7cfb<\/p>\n<p>\u7528\u6237(\u7f16\u53f7user001)\u5173\u6ce8<\/p>\n<blockquote>\n<p>sadd focus:user001 user003<\/p>\n<p>sadd focus:user002 user003 user004<\/p>\n<\/blockquote>\n<p>\u76f8\u4e92\u5173\u6ce8<\/p>\n<blockquote>\n<p>sadd focus:user001 user002<\/p>\n<p>sadd focus:user002 user001<\/p>\n<\/blockquote>\n<pre>#\u5224\u65ad\u7528\u62372\u662f\u5426\u5173\u6ce8\u4e86\u7528\u62371\n127.0.0.1:6379&gt; SISMEMBER focus:user002 user001\n(integer) 1<\/pre>\n<p>\u6211\u5173\u6ce8\u5f97\u5230\u4eba\u4e5f\u5173\u6ce8\u4e86\u4ed6(\u5171\u540c\u5173\u6ce8)&nbsp;<\/p>\n<pre>#\u83b7\u53d6\u5173\u6ce8\u7684\u4ea4\u96c6\n127.0.0.1:6379&gt; sinter focus:user001 focus:user002\n1) \"user003\"<\/pre>\n<p>\u53ef\u80fd\u8ba4\u8bc6\u7684\u4eba<\/p>\n<pre>#\u5c06\u6240\u6709\u7684\u4eba\u5b58\u653e\u5230allusers\u96c6\u5408\n127.0.0.1:6379&gt; SUNIONSTORE alluser:user001 focus:user001 focus:user002\n(integer) 4\n127.0.0.1:6379&gt; SDIFF alluser:user001 focus:user001\n1) \"user004\"\n2) \"user001\"\n#\u5254\u9664\u6389\u81ea\u5df1\n127.0.0.1:6379&gt; SREM alluser:user001 user001\n(integer) 1\n127.0.0.1:6379&gt; SDIFF alluser:user001 focus:user001\n1) \"user004\"<\/pre>\n<p>\u5b9e\u73b0\u65b9\u5f0f\uff1a<\/p>\n<p>set \u7684\u5185\u90e8\u5b9e\u73b0\u662f\u4e00\u4e2a value \u6c38\u8fdc\u4e3a null \u7684 HashMap\uff0c\u5b9e\u9645\u5c31\u662f\u901a\u8fc7\u8ba1\u7b97 hash \u7684\u65b9\u5f0f\u6765\u5feb\u901f\u6392\u91cd\u7684\uff0c\u8fd9\u4e5f\u662f set \u80fd\u63d0\u4f9b\u5224\u65ad\u4e00\u4e2a\u6210\u5458\u662f\u5426\u5728\u96c6\u5408\u5185\u7684\u539f\u56e0\u3002<\/p>\n<p>Redis \u4e2d\u7684\u96c6\u5408\u7c7b\u578b\uff0c\u4e5f\u5c31\u662f set\u3002\u5728 Redis \u4e2d set \u4e5f\u662f\u53ef\u4ee5\u4fdd\u5b58\u591a\u4e2a\u5b57\u7b26\u4e32\u7684\uff0c\u7ecf\u5e38\u6709\u4eba\u4f1a\u5206\u4e0d\u6e05 list \u4e0e set\uff0c\u4e0b\u9762\u6211\u4eec\u91cd\u70b9\u4ecb\u7ecd\u4e00\u4e0b\u5b83\u4eec\u4e4b\u95f4\u7684\u4e0d\u540c\uff1a<\/p>\n<ul>\n<li>set \u4e2d\u7684\u5143\u7d20\u662f\u4e0d\u53ef\u4ee5\u91cd\u590d\u7684\uff0c\u800c list \u662f\u53ef\u4ee5\u4fdd\u5b58\u91cd\u590d\u5143\u7d20\u7684\u3002<\/li>\n<li>set \u4e2d\u7684\u5143\u7d20\u662f\u65e0\u5e8f\u7684\uff0c\u800c list \u4e2d\u7684\u5143\u7d20\u662f\u6709\u5e8f\u7684\u3002<\/li>\n<li>set \u4e2d\u7684\u5143\u7d20\u4e0d\u80fd\u901a\u8fc7\u7d22\u5f15\u4e0b\u6807\u83b7\u53d6\u5143\u7d20\uff0c\u800c list \u4e2d\u7684\u5143\u7d20\u5219\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u4e0b\u6807\u83b7\u53d6\u5143\u7d20\u3002<\/li>\n<li>\u9664\u6b64\u4e4b\u5916 set \u8fd8\u652f\u6301\u66f4\u9ad8\u7ea7\u7684\u529f\u80fd\uff0c\u4f8b\u5982\u591a\u4e2a set \u53d6\u4ea4\u96c6\u3001\u5e76\u96c6\u3001\u5dee\u96c6\u7b49<\/li>\n<\/ul>\n<p>\u4e3a\u4ec0\u4e48 Redis \u8981\u63d0\u4f9b sinterstore\u3001sunionstore\u3001sdiffstore \u547d\u4ee4\u6765\u5c06\u96c6\u5408\u7684\u4ea4\u96c6\u3001\u5e76\u96c6\u3001\u5dee\u96c6\u7684\u7ed3\u679c\u4fdd\u5b58\u8d77\u6765\u5462\uff1f\u8fd9\u662f\u56e0\u4e3a Redis \u5728\u8fdb\u884c\u4e0a\u8ff0\u6bd4\u8f83\u65f6\uff0c\u4f1a\u6bd4\u8f83\u8017\u8d39\u65f6\u95f4\uff0c\u6240\u4ee5\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\u53ef\u4ee5\u5c06\u4ea4\u96c6\u3001\u5e76\u96c6\u3001\u5dee\u96c6\u7684\u7ed3\u679c\u63d0\u524d\u4fdd\u5b58\u8d77\u6765\uff0c\u8fd9\u6837\u5728\u9700\u8981\u4f7f\u7528\u65f6\uff0c\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7 smembers \u547d\u4ee4\u83b7\u53d6\u3002<\/p>\n<h3>\u5185\u90e8\u7f16\u7801 &nbsp;&nbsp;&nbsp;<\/h3>\n<ul>\n<li>intset(\u6574\u6570\u96c6\u5408)\uff1a\u5f53\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u90fd\u662f\u6574\u6570\uff0c\u5e76\u4e14\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u5c0f\u4e8eset-max-intset-entries \u53c2\u6570\u65f6\uff0c\u9ed8\u8ba4512\uff0cRedis \u4f1a\u9009\u7528 intset \u4f5c\u4e3a\u5e95\u5c42\u5185\u90e8\u5b9e\u73b0\u3002&nbsp;&nbsp;&nbsp;<\/li>\n<li>hashtable(\u54c8\u5e0c\u8868)\uff1a\u5f53\u4e0a\u8ff0\u6761\u4ef6\u4e0d\u6ee1\u8db3\u65f6\uff0cRedis \u4f1a\u91c7\u7528 hashtable \u4f5c\u4e3a\u5e95\u5c42\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n<h2>Sorted set&nbsp;\u6709\u5e8f\u96c6\u5408<\/h2>\n<p>\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n<p>zadd,zrange,zrem,zcard,zscore,zcount,zlexcount\u7b49<\/p>\n<pre>redis&gt; ZRANGE salary 0 -1 WITHSCORES    # \u6d4b\u8bd5\u6570\u636e\n1) \"tom\"\n2) \"2000\"\n3) \"peter\"\n4) \"3500\"\n5) \"jack\"\n6) \"5000\"\n \nredis&gt; ZSCORE salary peter              # \u6ce8\u610f\u8fd4\u56de\u503c\u662f\u5b57\u7b26\u4e32\n\"3500\"\n \nredis&gt; ZCOUNT salary 2000 5000          # \u8ba1\u7b97\u85aa\u6c34\u5728 2000-5000 \u4e4b\u95f4\u7684\u4eba\u6570\n(integer) 3\n \n# rank\uff1akey 100: \u5206\u6570 u1: ID\n# \u521d\u59cb\u5316 \u65f6\u95f4\u590d\u6742\u5ea6: O(log(N))\nzadd rank 100 u1\nzadd rank 200 u2\nzadd rank 300 u3\nzadd rank 400 u4\nzadd rank 500 u5\n \n# \u6570\u91cf\nzcard rank\n \n# \u5185\u5bb9\uff08\u6b63\u5e8f\u3001\u5012\u5e8f\uff09\u65f6\u95f4\u590d\u6742\u5ea6: O(log(N)+M)\nzrange rank 0 -1\nzrange rank 0 -1 withscores\n \nzrevrange rank 0 -1 withscores\nzrevrange rank 0 -2 withscores\nzrevrange rank 0 -1\n \n# \u83b7\u53d6\u7528\u6237\u5206\u6570\uff08\u4e0d\u5b58\u5728\u8fd4\u56de\u7a7a\uff09 \u65f6\u95f4\u590d\u6742\u5ea6: O(1)\nzscore rank u1\n \n# \u4fee\u6539\u5206\u6570\nzadd rank 800 u3\n \n# \u4fee\u6539\u5206\u6570\uff08\u7d2f\u52a0\uff1a\u65b0\u589e\u6216\u51cf\u5c11\uff0c\u8fd4\u56de\u4fee\u6539\u540e\u7684\u5206\u6570\uff09\nzincrby rank 100 u3\nzincrby rank -100 u3\n \n# \u67e5\u8be2\u5206\u6570\u8303\u56f4\u5185\u5bb9\uff08\u6b63\u5e8f\u3001\u5012\u5e8f\uff09\nzrangebyscore rank (200 800 withscores\nzrevrangebyscore rank (200 800 withscores\n \n# \u79fb\u9664\u5143\u7d20\nzrem rank u3<\/pre>\n<p>\u4e0b\u9762\u5148\u770b\u4e00\u4e0b\u5217\u8868\u3001\u96c6\u5408\u3001\u6709\u5e8f\u96c6\u5408\u4e09\u79cd\u6570\u636e\u7c7b\u578b\u4e4b\u95f4\u7684\u533a\u522b\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779663f961746e1d1.png\" class=\"aligncenter\"><\/p>\n<h3>\u5185\u90e8\u7f16\u7801&nbsp;<\/h3>\n<ul>\n<li>ziplist(\u538b\u7f29\u5217\u8868)\uff1a\u5f53\u6709\u5e8f\u96c6\u5408\u7684\u5143\u7d20\u4e2a\u6570\u5c0f\u4e8e 128 \u4e2a(\u9ed8\u8ba4\u8bbe\u7f6e)\uff0c\u540c\u65f6\u6bcf\u4e2a\u5143\u7d20\u7684\u503c\u90fd\u5c0f\u4e8e 64 \u5b57\u8282(\u9ed8\u8ba4\u8bbe\u7f6e)\uff0cRedis \u4f1a\u91c7\u7528 ziplist \u4f5c\u4e3a\u6709\u5e8f\u96c6\u5408\u7684\u5185\u90e8\u5b9e\u73b0\u3002<\/li>\n<li>skiplist(\u8df3\u8dc3\u8868)\uff1a\u5f53\u4e0a\u8ff0\u6761\u4ef6\u4e0d\u6ee1\u8db3\u65f6\uff0cRedis \u4f1a\u91c7\u7528 skiplist \u4f5c\u4e3a\u5185\u90e8\u7f16\u7801\u3002<\/li>\n<\/ul>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779663f96174aff72.jpg\" class=\"aligncenter\"><\/p>\n<p>\u5907\u6ce8\uff1a\u4e0a\u8ff0\u4e2d\u7684\u9ed8\u8ba4\u503c\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u53c2\u6570\u8bbe\u7f6e\uff1azset-max-ziplist-entries \u548c zset-max-ziplist-value\u3002<\/p>\n<h3>\u5e94\u7528\u573a\u666f<\/h3>\n<p>Redis sorted set \u7684\u4f7f\u7528\u573a\u666f\u4e0e set \u7c7b\u4f3c\uff0c\u533a\u522b\u662f set \u4e0d\u662f\u81ea\u52a8\u6709\u5e8f\u7684\uff0c\u800c sorted set \u53ef\u4ee5\u901a\u8fc7\u7528\u6237\u989d\u5916\u63d0\u4f9b\u4e00\u4e2a\u4f18\u5148\u7ea7\uff08score\uff09\u7684\u53c2\u6570\u6765\u4e3a\u6210\u5458\u6392\u5e8f\uff0c\u5e76\u4e14\u662f\u63d2\u5165\u6709\u5e8f\u7684\uff0c\u5373\u81ea\u52a8\u6392\u5e8f\u3002<\/p>\n<p>\u5f53\u4f60\u9700\u8981\u4e00\u4e2a\u6709\u5e8f\u7684\u5e76\u4e14\u4e0d\u91cd\u590d\u7684\u96c6\u5408\u5217\u8868\uff0c\u90a3\u4e48\u53ef\u4ee5\u9009\u62e9 sorted set \u6570\u636e\u7ed3\u6784\uff0c\u6bd4\u5982 twitter \u7684 public timeline \u53ef\u4ee5\u4ee5\u53d1\u8868\u65f6\u95f4\u4f5c\u4e3a score \u6765\u5b58\u50a8\uff0c\u8fd9\u6837\u83b7\u53d6\u65f6\u5c31\u662f\u81ea\u52a8\u6309\u65f6\u95f4\u6392\u597d\u5e8f\u7684\u3002\u70b9\u51fb\u6570\u505a\u51fa\u6392\u884c\u699c\u3002<\/p>\n<p>1.\u5546\u54c1\u7684\u8bc4\u4ef7\u6807\u7b7e\uff0c\u53ef\u4ee5\u8bb0\u5f55\u5546\u54c1\u7684\u6807\u7b7e\uff0c\u7edf\u8ba1\u6807\u7b7e\u6b21\u6570\uff0c\u589e\u52a0\u6807\u7b7e\u6b21\u6570\uff0c\u6309\u6807\u7b7e\u7684\u5206\u503c\u8fdb\u884c\u6392\u5e8f<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779663f96174e6b85.png\" class=\"aligncenter\"><\/p>\n<pre>#\u6dfb\u52a0\u5546\u54c1(\u7f16\u53f7i5001)\u7684\u6807\u7b7etag\u548c\u5bf9\u5e94\u6807\u7b7e\u7684\u8bc4\u4ef7\u6b21\u6570\n127.0.0.1:6379&gt; zadd goods_tag:i5001 442 tag1 265 tag2 264 tag3\n(integer) 3\n#\u4e0d\u5e26\u5206\u6570\n127.0.0.1:6379&gt; zrange goods_tag:i5001 0 -1\n1) \"tag3\"\n2) \"tag2\"\n3) \"tag1\"\n#\u5e26\u5206\u6570\n127.0.0.1:6379&gt; zrange goods_tag:i5001 0 -1 withscores\n1) \"tag3\"\n2) \"264\"\n3) \"tag2\"\n4) \"265\"\n5) \"tag1\"\n6) \"442\"<\/pre>\n<p>2.\u767e\u5ea6\u641c\u7d22\u70ed\u70b9<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779763f9617532c5d.jpg\" class=\"aligncenter\"><\/p>\n<pre>#\u7ef4\u62a42020\u5e741\u670821\u53f7\u7684\u70ed\u70b9\u65b0\u95fb\n127.0.0.1:6379&gt; zadd hotspot:20200121 520 pot1 263 pot2 244 pot3\n(integer) 3\n127.0.0.1:6379&gt; zrange hotspot:20200121 0 -1 withscores\n1) \"pot3\"\n2) \"244\"\n3) \"pot2\"\n4) \"263\"\n5) \"pot1\"\n6) \"520\"\n#\u589e\u52a0\u70b9\u51fb\u6b21\u6570\n127.0.0.1:6379&gt; ZINCRBY hotspot 1 pot1\n\"521\"<\/pre>\n<p>3.\u53cdspam\u7cfb\u7edf<\/p>\n<p>\u4f5c\u4e3a\u4e00\u4e2a\u7535\u5546\u7f51\u7ad9\u88ab\u5404\u79cdspam\u653b\u51fb\u662f\u5c11\u4e0d\u514d\uff08\u5783\u573e\u8bc4\u8bba\u3001\u53d1\u5e03\u5783\u573e\u5546\u54c1\u3001\u5e7f\u544a\u3001\u5237\u81ea\u5bb6\u5546\u54c1\u6392\u540d\u7b49\uff09\u9488\u5bf9\u8fd9\u4e9bspam\u5236\u5b9a\u4e00\u7cfb\u5217anti-spam\u89c4\u5219\uff0c\u5176\u4e2d\u6709\u4e9b\u89c4\u5219\u53ef\u4ee5\u5229\u7528redis\u505a\u5b9e\u65f6\u5206\u6790<br \/>\u8b6c\u5982\uff1a1\u5206\u949f\u8bc4\u8bba\u4e0d\u5f97\u8d85\u8fc72\u6b21\u30015\u5206\u949f\u8bc4\u8bba\u5c11\u4e8e5\u6b21\u7b49<\/p>\n<pre>#\u83b7\u53d65\u79d2\u5185\u64cd\u4f5c\u8bb0\u5f55\n$res = $redis-&gt;zRangeByScore('user:1000:comment', time() - 5, time());\n#\u5224\u65ad5\u79d2\u5185\u4e0d\u80fd\u8bc4\u8bba\nif (!$res) {\n    $redis-&gt;zAdd('user:1000:comment', time(), '\u8bc4\u8bba\u5185\u5bb9');\n} else {\n    echo '5\u79d2\u4e4b\u5185\u4e0d\u80fd\u8bc4\u8bba';\n}\n \n#5\u79d2\u5185\u8bc4\u8bba\u4e0d\u5f97\u8d85\u8fc72\u6b21\nif($redis-&gt;zRangeByScore('user:1000:comment',time()-5 ,time())==1)\necho '5\u79d2\u4e4b\u5185\u4e0d\u80fd\u8bc4\u8bba2\u6b21';\n \n#5\u79d2\u5185\u8bc4\u8bba\u4e0d\u5f97\u5c11\u4e8e2\u6b21\nif(count($redis-&gt;zRangeByScore('user:1000:comment',time()-5 ,time()))\n\n\n<h2>BitMap&nbsp;\u4f4d\u56fe<\/h2>\n<p>\u5728\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u6709\u4e00\u4e9b\u6570\u636e\u53ea\u6709\u4e24\u4e2a\u5c5e\u6027\uff0c\u6bd4\u5982\u662f\u5426\u662f\u5b66\u751f\uff0c\u662f\u5426\u662f\u515a\u5458\u7b49\u7b49\uff0c\u5bf9\u4e8e\u8fd9\u4e9b\u6570\u636e\uff0c\u6700\u8282\u7ea6\u5185\u5b58\u7684\u65b9\u5f0f\u5c31\u662f\u7528bit\u53bb\u8bb0\u5f55\uff0c\u4ee5\u662f\u5426\u662f\u5b66\u751f\u4e3a\u4f8b\uff0c1\u4ee3\u8868\u662f\u5b66\u751f\uff0c0\u4ee3\u8868\u4e0d\u662f\u5b66\u751f\u3002\u90a3\u4e481000110\u5c31\u4ee3\u88687\u4e2a\u4eba\u4e2d3\u4e2a\u662f\u5b66\u751f\uff0c\u8fd9\u5c31\u662fBitMaps\u7684\u5b58\u50a8\u9700\u6c42\u3002<\/p>\n<p>Bitmaps\u662f\u4e00\u4e2a\u53ef\u4ee5\u5bf9\u4f4d\u8fdb\u884c\u64cd\u4f5c\u7684\u5b57\u7b26\u4e32\uff0c\u6211\u4eec\u53ef\u4ee5\u628aBitmaps\u60f3\u8c61\u6210\u662f\u4e00\u4e32\u4e8c\u8fdb\u5236\u6570\u5b57\uff0c\u6bcf\u4e2a\u4f4d\u7f6e\u53ea\u5b58\u50a80\u548c1\u3002\u4e0b\u6807\u662fBitmaps\u7684\u504f\u79fb\u91cf\u3002<\/p>\n<p>BitMap \u5c31\u662f\u901a\u8fc7\u4e00\u4e2a bit \u4f4d\u6765\u8868\u793a\u67d0\u4e2a\u5143\u7d20\u5bf9\u5e94\u7684\u503c\u6216\u8005\u72b6\u6001, \u5176\u4e2d\u7684 key \u5c31\u662f\u5bf9\u5e94\u5143\u7d20\u672c\u8eab\uff0c\u5b9e\u9645\u4e0a\u5e95\u5c42\u4e5f\u662f\u901a\u8fc7\u5bf9\u5b57\u7b26\u4e32\u7684\u64cd\u4f5c\u6765\u5b9e\u73b0\u3002Redis\u4ece2.2.0\u7248\u672c\u5f00\u59cb\u65b0\u589e\u4e86<code>setbit<\/code>,<code>getbit<\/code>,<code>bitcount<\/code>\u7b49\u51e0\u4e2abitmap\u76f8\u5173\u547d\u4ee4\u3002<\/p>\n<p>\u867d\u7136\u662f\u65b0\u547d\u4ee4\uff0c\u4f46\u662f\u5e76\u6ca1\u6709\u65b0\u589e\u65b0\u7684\u6570\u636e\u7c7b\u578b\uff0c\u56e0\u4e3a<code>setbit<\/code>\u7b49\u547d\u4ee4\u53ea\u4e0d\u8fc7\u662f\u5728<code>set<\/code>\u4e0a\u7684\u6269\u5c55\u3002<\/p>\n<h3>\u4f7f\u7528\u573a\u666f\u4e00\uff1a\u7528\u6237\u7b7e\u5230<\/h3>\n<p>\u5f88\u591a\u7f51\u7ad9\u90fd\u63d0\u4f9b\u4e86\u7b7e\u5230\u529f\u80fd(\u8fd9\u91cc\u4e0d\u8003\u8651\u6570\u636e\u843d\u5730\u4e8b\u5b9c)\uff0c\u5e76\u4e14\u9700\u8981\u5c55\u793a\u6700\u8fd1\u4e00\u4e2a\u6708\u7684\u7b7e\u5230\u60c5\u51b5<\/p>\n<pre>\n    connect('127.0.0.1');\n \n\/\/\u7528\u6237uid\n$uid = 1;\n \n\/\/\u8bb0\u5f55\u6709uid\u7684key\n$cacheKey = sprintf(\"sign_%d\", $uid);\n \n\/\/\u5f00\u59cb\u6709\u7b7e\u5230\u529f\u80fd\u7684\u65e5\u671f\n$startDate = '2017-01-01';\n \n\/\/\u4eca\u5929\u7684\u65e5\u671f\n$todayDate = '2017-01-21';\n \n\/\/\u8ba1\u7b97offset\n$startTime = strtotime($startDate);\n$todayTime = strtotime($todayDate);\n$offset = floor(($todayTime - $startTime) \/ 86400);\n \necho \"\u4eca\u5929\u662f\u7b2c{$offset}\u5929\" . PHP_EOL;\n \n\/\/\u7b7e\u5230\n\/\/\u4e00\u5e74\u4e00\u4e2a\u7528\u6237\u4f1a\u5360\u7528\u591a\u5c11\u7a7a\u95f4\u5462\uff1f\u5927\u7ea6365\/8=45.625\u4e2a\u5b57\u8282\uff0c\u597d\u5c0f\uff0c\u6709\u6728\u6709\u88ab\u60ca\u5446\uff1f\n$redis-&gt;setBit($cacheKey, $offset, 1);\n \n\/\/\u67e5\u8be2\u7b7e\u5230\u60c5\u51b5\n$bitStatus = $redis-&gt;getBit($cacheKey, $offset);\necho 1 == $bitStatus ? '\u4eca\u5929\u5df2\u7ecf\u7b7e\u5230\u5566' : '\u8fd8\u6ca1\u6709\u7b7e\u5230\u5462';\necho PHP_EOL;\n \n\/\/\u8ba1\u7b97\u603b\u7b7e\u5230\u6b21\u6570\necho $redis-&gt;bitCount($cacheKey) . PHP_EOL;\n \n\/**\n * \u8ba1\u7b97\u67d0\u6bb5\u65f6\u95f4\u5185\u7684\u7b7e\u5230\u6b21\u6570\n * \u5f88\u4e0d\u5e78\u554a,bitCount\u867d\u7136\u63d0\u4f9b\u4e86start\u548cend\u53c2\u6570\uff0c\u4f46\u662f\u8fd9\u4e2a\u8bf4\u7684\u662f\u5b57\u7b26\u4e32\u7684\u4f4d\u7f6e\uff0c\u800c\u4e0d\u662f\u5bf9\u5e94\"\u4f4d\"\u7684\u4f4d\u7f6e\n * \u5e78\u8fd0\u7684\u662f\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7get\u547d\u4ee4\u5c06value\u53d6\u51fa\u6765\uff0c\u81ea\u5df1\u89e3\u6790\u3002\u5e76\u4e14\u8fd9\u4e2avalue\u4e0d\u4f1a\u592a\u5927\uff0c\u4e0a\u9762\u8ba1\u7b97\u8fc7\u4e00\u5e74\u4e00\u4e2a\u7528\u6237\u53ea\u9700\u898145\u4e2a\u5b57\u8282\n * \u7ed9\u6211\u4eec\u7684\u7f51\u7ad9\u5b9a\u4e00\u4e2a\u5c0f\u76ee\u6807\uff0c\u8fd0\u884c30\u5e74\uff0c\u90a3\u4e48\u4e00\u5171\u9700\u89811.31KB(\u5c31\u95ee\u4f60\u5c4c\u4e0d\u5c4c\uff1f)\n *\/\n\/\/\u8fd9\u662f\u4e2a\u9519\u8bef\u7684\u8ba1\u7b97\u65b9\u5f0f\necho $redis-&gt;bitCount($cacheKey, 0, 20) . PHP_EOL;<\/pre>\n<h3>\u4f7f\u7528\u573a\u666f\u4e8c\uff1a\u7edf\u8ba1\u6d3b\u8dc3\u7528\u6237<\/h3>\n<p>\u4f7f\u7528\u65f6\u95f4\u4f5c\u4e3acacheKey\uff0c\u7136\u540e\u7528\u6237ID\u4e3aoffset\uff0c\u5982\u679c\u5f53\u65e5\u6d3b\u8dc3\u8fc7\u5c31\u8bbe\u7f6e\u4e3a1<\/p>\n<p>\u90a3\u4e48\u6211\u8be5\u5982\u679c\u8ba1\u7b97\u67d0\u51e0\u5929\/\u6708\/\u5e74\u7684\u6d3b\u8dc3\u7528\u6237\u5462(\u6682\u4e14\u7ea6\u5b9a\uff0c\u7edf\u8ba1\u65f6\u95f4\u5185\u53ea\u6709\u6709\u4e00\u5929\u5728\u7ebf\u5c31\u79f0\u4e3a\u6d3b\u8dc3)\uff0c\u6709\u8bf7\u4e0b\u4e00\u4e2aredis\u7684\u547d\u4ee4<\/p>\n<p>\u547d\u4ee4 <code>BITOP operation destkey key [key ...]<\/code><\/p>\n<p>\u8bf4\u660e\uff1a\u5bf9\u4e00\u4e2a\u6216\u591a\u4e2a\u4fdd\u5b58\u4e8c\u8fdb\u5236\u4f4d\u7684\u5b57\u7b26\u4e32 key \u8fdb\u884c\u4f4d\u5143\u64cd\u4f5c\uff0c\u5e76\u5c06\u7ed3\u679c\u4fdd\u5b58\u5230 destkey \u4e0a\u3002<\/p>\n<p>\u8bf4\u660e\uff1aBITOP \u547d\u4ee4\u652f\u6301 AND \u3001 OR \u3001 NOT \u3001 XOR \u8fd9\u56db\u79cd\u64cd\u4f5c\u4e2d\u7684\u4efb\u610f\u4e00\u79cd\u53c2\u6570<\/p>\n<pre>bitop and destKey key1 key2....  \/\/\u4ea4\nbitop or destKey key1 key2....   \/\/\u5e76\nbitop not destKey key1 key2....  \/\/\u975e\nbitop xor destKey key1 key2....  \/\/\u5f02\u6216<\/pre>\n<pre>\n     array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10),\u2028\n    '2017-01-11' =&gt; array(1, 2, 3, 4, 5, 6, 7, 8),\u2028\n    '2017-01-12' =&gt; array(1, 2, 3, 4, 5, 6),\u2028\n    '2017-01-13' =&gt; array(1, 2, 3, 4),\n    '2017-01-14' =&gt; array(1, 2)\u2028\n);\n\/\/\u6279\u91cf\u8bbe\u7f6e\u6d3b\u8dc3\u72b6\u6001\u2028\nforeach ($data as $date =&gt; $uids) {\n    $cacheKey = sprintf(\"stat_%s\", $date);\n    foreach ($uids as $uid) {\n        $redis-&gt;setBit($cacheKey, $uid, 1);\n    }\n}\n$redis-&gt;bitOp('AND', 'stat', 'stat_2017-01-10', 'stat_2017-01-11', 'stat_2017-01-12') . PHP_EOL;\n\/\/\u603b\u6d3b\u8dc3\u7528\u6237\uff1a6\u2028\necho \"\u603b\u6d3b\u8dc3\u7528\u6237\uff1a\" . $redis-&gt;bitCount('stat') . PHP_EOL;\n \n$redis-&gt;bitOp('AND', 'stat1', 'stat_2017-01-10', 'stat_2017-01-11', 'stat_2017-01-14') . PHP_EOL;\n\u2028\n\/\/\u603b\u6d3b\u8dc3\u7528\u6237\uff1a2\u2028\necho \"\u603b\u6d3b\u8dc3\u7528\u6237\uff1a\" . $redis-&gt;bitCount('stat1') . PHP_EOL;\n \n$redis-&gt;bitOp('AND', 'stat2', 'stat_2017-01-10', 'stat_2017-01-11') . PHP_EOL; \/\/\u603b\u6d3b\u8dc3\u7528\u6237\uff1a8\u2028\necho \"\u603b\u6d3b\u8dc3\u7528\u6237\uff1a\" . $redis-&gt;bitCount('stat2') . PHP_EOL;<\/pre>\n<h3>\u4f7f\u7528\u573a\u666f\u4e09\uff1a\u7528\u6237\u5728\u7ebf\u72b6\u6001<\/h3>\n<p>\u524d\u6bb5\u65f6\u95f4\u5f00\u53d1\u4e00\u4e2a\u9879\u76ee\uff0c\u5bf9\u65b9\u7ed9\u6211\u63d0\u4f9b\u4e86\u4e00\u4e2a\u67e5\u8be2\u5f53\u524d\u7528\u6237\u662f\u5426\u5728\u7ebf\u7684\u63a5\u53e3\u3002\u4e0d\u4e86\u89e3\u5bf9\u65b9\u662f\u600e\u4e48\u505a\u7684\uff0c\u81ea\u5df1\u8003\u8651\u4e86\u4e00\u4e0b\uff0c\u4f7f\u7528bitmap\u662f\u4e00\u4e2a\u8282\u7ea6\u7a7a\u95f4\u6548\u7387\u53c8\u9ad8\u7684\u4e00\u79cd\u65b9\u6cd5\uff0c\u53ea\u9700\u8981\u4e00\u4e2akey\uff0c\u7136\u540e\u7528\u6237ID\u4e3aoffset\uff0c\u5982\u679c\u5728\u7ebf\u5c31\u8bbe\u7f6e\u4e3a1\uff0c\u4e0d\u5728\u7ebf\u5c31\u8bbe\u7f6e\u4e3a0\uff0c\u548c\u4e0a\u9762\u7684\u573a\u666f\u4e00\u6837\uff0c5000W\u7528\u6237\u53ea\u9700\u89816MB\u7684\u7a7a\u95f4\u3002<\/p>\n<pre>\n    setBit('online', $uid, $uid % 2);\n}\n\/\/\u4e00\u4e2a\u4e00\u4e2a\u83b7\u53d6\u72b6\u6001\n$uids = range(1, 500000);\n$startTime = microtime(true);\nforeach ($uids as $uid) {\n    echo $redis-&gt;getBit('online', $uid) . PHP_EOL;\n}\n$endTime = microtime(true);\n \n\/\/\u5728\u6211\u7684\u7535\u8111\u4e0a\uff0c\u83b7\u53d650W\u4e2a\u7528\u6237\u7684\u72b6\u6001\u9700\u898125\u79d2\u2028\necho \"total:\" . ($endTime - $startTime) . \"s\";<\/pre>\n<h3>\u5185\u90e8\u7f16\u7801<\/h3>\n<p>\u8fd9\u4e2a\u5c31\u662fRedis\u5b9e\u73b0\u7684BloomFilter\uff0cBloomFilter\u975e\u5e38\u7b80\u5355\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u5047\u8bbe\u5df2\u7ecf\u67093\u4e2a\u5143\u7d20a\u3001b\u548cc\uff0c\u5206\u522b\u901a\u8fc73\u4e2ahash\u7b97\u6cd5h1()\u3001h2()\u548ch2()\u8ba1\u7b97\u7136\u540e\u5bf9\u4e00\u4e2abit\u8fdb\u884c\u8d4b\u503c\uff0c\u63a5\u4e0b\u6765\u5047\u8bbe\u9700\u8981\u5224\u65add\u662f\u5426\u5df2\u7ecf\u5b58\u5728\uff0c\u90a3\u4e48\u4e5f\u9700\u8981\u4f7f\u75283\u4e2ahash\u7b97\u6cd5h1()\u3001h2()\u548ch2()\u5bf9d\u8fdb\u884c\u8ba1\u7b97\uff0c\u7136\u540e\u5f97\u52303\u4e2abit\u7684\u503c\uff0c\u6070\u597d\u8fd93\u4e2abit\u7684\u503c\u4e3a1\uff0c\u8fd9\u5c31\u80fd\u591f\u8bf4\u660e\uff1ad\u53ef\u80fd\u5b58\u5728\u96c6\u5408\u4e2d\u3002\u518d\u5224\u65ade\uff0c\u7531\u4e8eh1(e)\u7b97\u51fa\u6765\u7684bit\u4e4b\u524d\u7684\u503c\u662f0\uff0c\u90a3\u4e48\u8bf4\u660e\uff1ae\u4e00\u5b9a\u4e0d\u5b58\u5728\u96c6\u5408\u4e2d\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779763f961757318c.jpg\" class=\"aligncenter\"><\/p>\n<p>\u9700\u8981\u8bf4\u660e\u7684\u662f\uff0cbitmap\u5e76\u4e0d\u662f\u4e00\u79cd\u771f\u5b9e\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u672c\u8d28\u4e0a\u662fString\u6570\u636e\u7ed3\u6784\uff0c\u53ea\u4e0d\u8fc7\u64cd\u4f5c\u7684\u7c92\u5ea6\u53d8\u6210\u4e86\u4f4d\uff0c\u5373bit\u3002\u56e0\u4e3aString\u7c7b\u578b\u6700\u5927\u957f\u5ea6\u4e3a512MB\uff0c\u6240\u4ee5bitmap\u6700\u591a\u53ef\u4ee5\u5b58\u50a82^32\u4e2abit\u3002&nbsp;<\/p>\n<h2>HyperLogLog&nbsp;\u57fa\u6570\u7edf\u8ba1<\/h2>\n<p>HyperLogLog\u7b97\u6cd5\u65f6\u4e00\u79cd\u975e\u5e38\u5de7\u5999\u7684\u8fd1\u4f3c\u7edf\u8ba1\u5927\u91cf\u53bb\u91cd\u5143\u7d20\u6570\u91cf\u7684\u7b97\u6cd5\uff0c\u5b83\u5185\u90e8\u7ef4\u62a4\u4e8616384\u4e2a\u6876\u6765\u8bb0\u5f55\u5404\u81ea\u6876\u7684\u5143\u7d20\u6570\u91cf\uff0c\u5f53\u4e00\u4e2a\u5143\u7d20\u8fc7\u6765\uff0c\u5b83\u4f1a\u6563\u5217\u5230\u5176\u4e2d\u4e00\u4e2a\u6876\u3002<\/p>\n<p>\u5f53\u5143\u7d20\u5230\u6765\u65f6\uff0c\u901a\u8fc7 hash \u7b97\u6cd5\u5c06\u8fd9\u4e2a\u5143\u7d20\u5206\u6d3e\u5230\u5176\u4e2d\u7684\u4e00\u4e2a\u5c0f\u96c6\u5408\u5b58\u50a8\uff0c\u540c\u6837\u7684\u5143\u7d20\u603b\u662f\u4f1a\u6563\u5217\u5230\u540c\u6837\u7684\u5c0f\u96c6\u5408\u3002\u8fd9\u6837\u603b\u7684\u8ba1\u6570\u5c31\u662f\u6240\u6709\u5c0f\u96c6\u5408\u5927\u5c0f\u7684\u603b\u548c\u3002<\/p>\n<p>\u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f\u7cbe\u786e\u8ba1\u6570\u9664\u4e86\u53ef\u4ee5\u589e\u52a0\u5143\u7d20\u5916\uff0c\u8fd8\u53ef\u4ee5\u51cf\u5c11\u5143\u7d20<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779763f96175bc4d8.png\" class=\"aligncenter\"><\/p>\n<p>\u4e00\u4e2aHyperLogLog\u5b9e\u9645\u5360\u7528\u7684\u7a7a\u95f4\u5927\u7ea6\u662f 13684 * 6bit \/ 8 = 12k \u5b57\u8282\u3002\u4f46\u662f\u5728\u8ba1\u6570\u6bd4\u8f83\u5c0f\u7684\u65f6\u5019\uff0c\u5927\u591a\u6570\u6876\u7684\u8ba1\u6570\u503c\u90fd\u662f\u96f6\u3002\u5982\u679c 12k \u5b57\u8282\u91cc\u9762\u592a\u591a\u7684\u5b57\u8282\u90fd\u662f\u96f6\uff0c\u90a3\u4e48\u8fd9\u4e2a\u7a7a\u95f4\u662f\u53ef\u4ee5\u9002\u5f53\u8282\u7ea6\u4e00\u4e0b\u7684\u3002Redis \u5728\u8ba1\u6570\u503c\u6bd4\u8f83\u5c0f\u7684\u60c5\u51b5\u4e0b\u91c7\u7528\u4e86\u7a00\u758f\u5b58\u50a8\uff0c\u7a00\u758f\u5b58\u50a8\u7684\u7a7a\u95f4\u5360\u7528\u8fdc\u8fdc\u5c0f\u4e8e 12k \u5b57\u8282\u3002\u76f8\u5bf9\u4e8e\u7a00\u758f\u5b58\u50a8\u7684\u5c31\u662f\u5bc6\u96c6\u5b58\u50a8\uff0c\u5bc6\u96c6\u5b58\u50a8\u4f1a\u6052\u5b9a\u5360\u7528 12k \u5b57\u8282\u3002<\/p>\n<h3>\u5185\u90e8\u7f16\u7801<\/h3>\n<p>HyperLogLog \u6574\u4f53\u7684\u5185\u90e8\u7ed3\u6784\u5c31\u662f HLL \u5bf9\u8c61\u5934 \u52a0\u4e0a 16384 \u4e2a\u6876\u7684\u8ba1\u6570\u503c\u4f4d\u56fe\u3002\u5b83\u5728 Redis \u7684\u5185\u90e8\u7ed3\u6784\u8868\u73b0\u5c31\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\u4f4d\u56fe\u3002\u4f60\u53ef\u4ee5\u628a HyperLogLog \u5bf9\u8c61\u5f53\u6210\u666e\u901a\u7684\u5b57\u7b26\u4e32\u6765\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<h3>\u5e94\u7528\u573a\u666f<\/h3>\n<p>Redis \u7684\u57fa\u6570\u7edf\u8ba1\uff0c\u8fd9\u4e2a\u7ed3\u6784\u53ef\u4ee5\u975e\u5e38\u7701\u5185\u5b58\u7684\u53bb\u7edf\u8ba1\u5404\u79cd\u8ba1\u6570\uff0c\u6bd4\u5982\u6ce8\u518c IP \u6570\u3001\u6bcf\u65e5\u8bbf\u95ee IP \u6570\u3001\u9875\u9762\u5b9e\u65f6UV\uff09\u3001\u5728\u7ebf\u7528\u6237\u6570\u7b49\u3002\u4f46\u662f\u5b83\u4e5f\u6709\u5c40\u9650\u6027\uff0c\u5c31\u662f\u53ea\u80fd\u7edf\u8ba1\u6570\u91cf\uff0c\u800c\u6ca1\u529e\u6cd5\u53bb\u77e5\u9053\u5177\u4f53\u7684\u5185\u5bb9\u662f\u4ec0\u4e48\u3002\u5f53\u7136\u7528\u96c6\u5408\u4e5f\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u4f46\u662f\u4e00\u4e2a\u5927\u578b\u7684\u7f51\u7ad9\uff0c\u6bcf\u5929 IP \u6bd4\u5982\u6709 100 \u4e07\uff0c\u7c97\u7b97\u4e00\u4e2a IP \u6d88\u8017 15 \u5b57\u8282\uff0c\u90a3\u4e48 100 \u4e07\u4e2a IP \u5c31\u662f 15M\u3002\u800c HyperLogLog \u5728 Redis \u4e2d\u6bcf\u4e2a\u952e\u5360\u7528\u7684\u5185\u5bb9\u90fd\u662f 12K\uff0c\u7406\u8bba\u5b58\u50a8\u8fd1\u4f3c\u63a5\u8fd1 2^64 \u4e2a\u503c\uff0c\u4e0d\u7ba1\u5b58\u50a8\u7684\u5185\u5bb9\u662f\u4ec0\u4e48\uff0c\u5b83\u4e00\u4e2a\u57fa\u4e8e\u57fa\u6570\u4f30\u7b97\u7684\u7b97\u6cd5\uff0c\u53ea\u80fd\u6bd4\u8f83\u51c6\u786e\u7684\u4f30\u7b97\u51fa\u57fa\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u5c11\u91cf\u56fa\u5b9a\u7684\u5185\u5b58\u53bb\u5b58\u50a8\u5e76\u8bc6\u522b\u96c6\u5408\u4e2d\u7684\u552f\u4e00\u5143\u7d20\u3002\u800c\u4e14\u8fd9\u4e2a\u4f30\u7b97\u7684\u57fa\u6570\u5e76\u4e0d\u4e00\u5b9a\u51c6\u786e\uff0c\u662f\u4e00\u4e2a\u5e26\u6709 0.81% \u6807\u51c6\u9519\u8bef\u7684\u8fd1\u4f3c\u503c\u3002<\/p>\n<p>HyperLogLog \u4e3b\u8981\u7684\u5e94\u7528\u573a\u666f\u5c31\u662f\u8fdb\u884c\u57fa\u6570\u7edf\u8ba1\u3002\u8fd9\u4e2a\u95ee\u9898\u7684\u5e94\u7528\u573a\u666f\u5176\u5b9e\u662f\u5341\u5206\u5e7f\u6cdb\u7684\u3002\u4f8b\u5982\uff1a\u5bf9\u4e8e Google \u4e3b\u9875\u9762\u800c\u8a00\uff0c\u540c\u4e00\u4e2a\u8d26\u6237\u53ef\u80fd\u4f1a\u8bbf\u95ee Google \u4e3b\u9875\u9762\u591a\u6b21\u3002\u4e8e\u662f\uff0c\u5728\u8bf8\u591a\u7684\u8bbf\u95ee\u6d41\u6c34\u4e2d\uff0c\u5982\u4f55\u8ba1\u7b97\u51fa Google \u4e3b\u9875\u9762\u6bcf\u5929\u88ab\u591a\u5c11\u4e2a\u4e0d\u540c\u7684\u8d26\u6237\u8bbf\u95ee\u8fc7\u5c31\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u95ee\u9898\u3002\u90a3\u4e48\u5bf9\u4e8e Google \u8fd9\u79cd\u8bbf\u95ee\u91cf\u5de8\u5927\u7684\u7f51\u9875\u800c\u8a00\uff0c\u5176\u5b9e\u7edf\u8ba1\u51fa\u6709\u5341\u4ebf \u7684\u8bbf\u95ee\u91cf\u6216\u8005\u5341\u4ebf\u96f6\u5341\u4e07\u7684\u8bbf\u95ee\u91cf\u5176\u5b9e\u662f\u6ca1\u6709\u592a\u591a\u7684\u533a\u522b\u7684\uff0c\u56e0\u6b64\uff0c\u5728\u8fd9\u79cd\u4e1a\u52a1\u573a\u666f\u4e0b\uff0c\u4e3a\u4e86\u8282\u7701\u6210\u672c\uff0c\u5176\u5b9e\u53ef\u4ee5\u53ea\u8ba1\u7b97\u51fa\u4e00\u4e2a\u5927\u6982\u7684\u503c\uff0c\u800c\u6ca1\u6709\u5fc5\u8981\u8ba1\u7b97\u51fa\u7cbe\u51c6\u7684\u503c<\/p>\n<p>\u8fd9\u4e2a\u6570\u636e\u7ed3\u6784\u7684\u547d\u4ee4\u6709\u4e09\u4e2a\uff1aPFADD\u3001PFCOUNT\u3001PFMERGE<\/p>\n<pre>redis&gt; PFADD databases \"Redis\" \"MongoDB\" \"MySQL\"\n(integer) 1\n \nredis&gt; PFADD databases \"Redis\"  # Redis \u5df2\u7ecf\u5b58\u5728\uff0c\u4e0d\u5fc5\u5bf9\u4f30\u8ba1\u6570\u91cf\u8fdb\u884c\u66f4\u65b0\n(integer) 0\n \nredis&gt; PFCOUNT databases\n(integer) 3<\/pre>\n<h2>Geo&nbsp;\u5730\u7406\u4f4d\u7f6e<\/h2>\n<p>Redis \u7684 GEO \u7279\u6027\u5728 Redis 3.2 \u7248\u672c\u4e2d\u63a8\u51fa\uff0c \u8fd9\u4e2a\u529f\u80fd\u53ef\u4ee5\u5c06\u7528\u6237\u7ed9\u5b9a\u7684\u5730\u7406\u4f4d\u7f6e\u4fe1\u606f\u50a8\u5b58\u8d77\u6765\uff0c \u5e76\u5bf9\u8fd9\u4e9b\u4fe1\u606f\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<p>GEO\u7684\u6570\u636e\u7ed3\u6784\u603b\u5171\u6709\u516d\u4e2a\u547d\u4ee4\uff1ageoadd\u3001geopos\u3001geodist\u3001georadius\u3001georadiusbymember\u3001gethash,GEO\u4f7f\u7528\u7684\u662f\u56fd\u9645\u901a\u7528\u5750\u6807\u7cfbWGS-84\u3002<\/p>\n<ul>\n<li>1.GEOADD:\u6dfb\u52a0\u5730\u7406\u4f4d\u7f6e<\/li>\n<li>2.GEOPOS\uff1a\u67e5\u8be2\u5730\u7406\u4f4d\u7f6e\uff08\u7ecf\u7eac\u5ea6\uff09\uff0c\u8fd4\u56de\u6570\u7ec4<\/li>\n<li>3.GEODIST\uff1a\u8ba1\u7b97\u4e24\u4f4d\u4f4d\u7f6e\u95f4\u7684\u8ddd\u79bb<\/li>\n<li>4.GEORADIUS\uff1a\u4ee5\u7ed9\u5b9a\u7684\u7ecf\u7eac\u5ea6\u4e3a\u4e2d\u5fc3\uff0c \u8fd4\u56de\u952e\u5305\u542b\u7684\u4f4d\u7f6e\u5143\u7d20\u5f53\u4e2d\uff0c \u4e0e\u4e2d\u5fc3\u7684\u8ddd\u79bb\u4e0d\u8d85\u8fc7\u7ed9\u5b9a\u6700\u5927\u8ddd\u79bb\u7684\u6240\u6709\u4f4d\u7f6e\u5143\u7d20\u3002<\/li>\n<li>5.GEORADIUSBYMEMBER\uff1a\u4ee5\u7ed9\u5b9a\u7684\u5730\u7406\u4f4d\u7f6e\u4e3a\u4e2d\u5fc3\uff0c \u8fd4\u56de\u952e\u5305\u542b\u7684\u4f4d\u7f6e\u5143\u7d20\u5f53\u4e2d\uff0c \u4e0e\u4e2d\u5fc3\u7684\u8ddd\u79bb\u4e0d\u8d85\u8fc7\u7ed9\u5b9a\u6700\u5927\u8ddd\u79bb\u7684\u6240\u6709\u4f4d\u7f6e\u5143\u7d20\u3002<\/li>\n<\/ul>\n<pre>127.0.0.1:6379&gt; geoadd kcityGeo 116.405285 39.904989 \"beijing\"\n(integer) 1\n127.0.0.1:6379&gt; geoadd kcityGeo 121.472644 31.231706 \"shanghai\"\n(integer) 1 \n127.0.0.1:6379&gt; geodist kcityGeo beijing shanghai km\n\"1067.5980\"\n127.0.0.1:6379&gt; geopos kcityGeo beijing\n1) 1) \"116.40528291463851929\"\n   2) \"39.9049884229125027\"\n127.0.0.1:6379&gt; geohash kcityGeo beijing\n1) \"wx4g0b7xrt0\"\n127.0.0.1:6379&gt; georadiusbymember kcityGeo beijing 1200 km withdist withcoord asc count 5\n1) 1) \"beijing\"\n   2) \"0.0000\"\n   3) 1) \"116.40528291463851929\"\n      2) \"39.9049884229125027\"\n2) 1) \"shanghai\"\n   2) \"1067.5980\"\n   3) 1) \"121.47264629602432251\"\n      2) \"31.23170490709807012\"<\/pre>\n<h3>\u5185\u90e8\u7f16\u7801<\/h3>\n<p>\u4f46\u662f\uff0c\u9700\u8981\u8bf4\u660e\u7684\u662f\uff0cGeo\u672c\u8eab\u4e0d\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u672c\u8d28\u4e0a\u8fd8\u662f\u501f\u52a9\u4e8eSorted Set\uff08ZSET\uff09\uff0c\u5e76\u4e14\u4f7f\u7528GeoHash\u6280\u672f\u8fdb\u884c\u586b\u5145\u3002Redis\u4e2d\u5c06\u7ecf\u7eac\u5ea6\u4f7f\u752852\u4f4d\u7684\u6574\u6570\u8fdb\u884c\u7f16\u7801\uff0c\u653e\u8fdbzset\u4e2d\uff0cscore\u5c31\u662fGeoHash\u768452\u4f4d\u6574\u6570\u503c\u3002\u5728\u4f7f\u7528Redis\u8fdb\u884cGeo\u67e5\u8be2\u65f6\uff0c\u5176\u5185\u90e8\u5bf9\u5e94\u7684\u64cd\u4f5c\u5176\u5b9e\u5c31\u662fzset(skiplist)\u7684\u64cd\u4f5c\u3002\u901a\u8fc7zset\u7684score\u8fdb\u884c\u6392\u5e8f\u5c31\u53ef\u4ee5\u5f97\u5230\u5750\u6807\u9644\u8fd1\u7684\u5176\u5b83\u5143\u7d20\uff0c\u901a\u8fc7\u5c06score\u8fd8\u539f\u6210\u5750\u6807\u503c\u5c31\u53ef\u4ee5\u5f97\u5230\u5143\u7d20\u7684\u539f\u59cb\u5750\u6807\u3002<\/p>\n<p>\u603b\u4e4b\uff0cRedis\u4e2d\u5904\u7406\u8fd9\u4e9b\u5730\u7406\u4f4d\u7f6e\u5750\u6807\u70b9\u7684\u601d\u60f3\u662f\uff1a\u4e8c\u7ef4\u5e73\u9762\u5750\u6807\u70b9 &#8211;&gt; \u4e00\u7ef4\u6574\u6570\u7f16\u7801\u503c &#8211;&gt; zset(score\u4e3a\u7f16\u7801\u503c) &#8211;&gt; zrangebyrank(\u83b7\u53d6score\u76f8\u8fd1\u7684\u5143\u7d20)\u3001zrangebyscore &#8211;&gt; \u901a\u8fc7score(\u6574\u6570\u7f16\u7801\u503c)\u53cd\u89e3\u5750\u6807\u70b9 &#8211;&gt; \u9644\u8fd1\u70b9\u7684\u5730\u7406\u4f4d\u7f6e\u5750\u6807\u3002<\/p>\n<h3>\u5e94\u7528\u573a\u666f<\/h3>\n<p>\u6bd4\u5982\u73b0\u5728\u6bd4\u8f83\u706b\u7684\u76f4\u64ad\u4e1a\u52a1\uff0c\u6211\u4eec\u9700\u8981\u68c0\u7d22\u9644\u8fd1\u7684\u4e3b\u64ad\uff0c\u90a3\u4e48GEO\u5c31\u53ef\u4ee5\u5f88\u597d\u7684\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\u3002<\/p>\n<ul>\n<li>\u4e00\u662f\u4e3b\u64ad\u5f00\u64ad\u7684\u65f6\u5019\u5199\u5165\u4e3b\u64adId\u7684\u7ecf\u7eac\u5ea6<\/li>\n<li>\u4e8c\u662f\u4e3b\u64ad\u5173\u64ad\u7684\u65f6\u5019\u5220\u9664\u4e3b\u64adId\u5143\u7d20\uff0c\u8fd9\u6837\u5c31\u7ef4\u62a4\u4e86\u4e00\u4e2a\u5177\u6709\u4f4d\u7f6e\u4fe1\u606f\u7684\u5728\u7ebf\u4e3b\u64ad\u96c6\u5408\u63d0\u4f9b\u7ed9\u7ebf\u4e0a\u68c0\u7d22<\/li>\n<\/ul>\n<h2>Streams&nbsp;\u6d41<\/h2>\n<p>\u8fd9\u662fRedis5.0\u5f15\u5165\u7684\u5168\u65b0\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e00\u53e5\u8bdd\u6982\u62ecStreams\u5c31\u662fRedis\u5b9e\u73b0\u7684\u5185\u5b58\u7248kafka\u3002\u652f\u6301\u591a\u64ad\u7684\u53ef\u6301\u4e45\u5316\u7684\u6d88\u606f\u961f\u5217\uff0c\u7528\u4e8e\u5b9e\u73b0\u53d1\u5e03\u8ba2\u9605\u529f\u80fd\uff0c\u501f\u9274\u4e86 kafka \u7684\u8bbe\u8ba1\u3002<\/p>\n<p>Redis Stream\u7684\u7ed3\u6784\u6709\u4e00\u4e2a\u6d88\u606f\u94fe\u8868\uff0c\u5c06\u6240\u6709\u52a0\u5165\u7684\u6d88\u606f\u90fd\u4e32\u8d77\u6765\uff0c\u6bcf\u4e2a\u6d88\u606f\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684ID\u548c\u5bf9\u5e94\u7684\u5185\u5bb9\u3002\u6d88\u606f\u662f\u6301\u4e45\u5316\u7684\uff0cRedis\u91cd\u542f\u540e\uff0c\u5185\u5bb9\u8fd8\u5728\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779863f9617608d8a.png\" class=\"aligncenter\"><\/p>\n<p>\u6bcf\u4e2aStream\u90fd\u6709\u552f\u4e00\u7684\u540d\u79f0\uff0c\u5b83\u5c31\u662fRedis\u7684key\uff0c\u5728\u6211\u4eec\u9996\u6b21\u4f7f\u7528xadd\u6307\u4ee4\u8ffd\u52a0\u6d88\u606f\u65f6\u81ea\u52a8\u521b\u5efa\u3002<\/p>\n<p>\u6bcf\u4e2aStream\u90fd\u53ef\u4ee5\u6302\u591a\u4e2a\u6d88\u8d39\u7ec4\uff0c\u6bcf\u4e2a\u6d88\u8d39\u7ec4\u4f1a\u6709\u4e2a\u6e38\u6807last_delivered_id\u5728Stream\u6570\u7ec4\u4e4b\u4e0a\u5f80\u524d\u79fb\u52a8\uff0c\u8868\u793a\u5f53\u524d\u6d88\u8d39\u7ec4\u5df2\u7ecf\u6d88\u8d39\u5230\u54ea\u6761\u6d88\u606f\u4e86\u3002\u6bcf\u4e2a\u6d88\u8d39\u7ec4\u90fd\u6709\u4e00\u4e2aStream\u5185\u552f\u4e00\u7684\u540d\u79f0\uff0c\u6d88\u8d39\u7ec4\u4e0d\u4f1a\u81ea\u52a8\u521b\u5efa\uff0c\u5b83\u9700\u8981\u5355\u72ec\u7684\u6307\u4ee4xgroup create\u8fdb\u884c\u521b\u5efa\uff0c\u9700\u8981\u6307\u5b9a\u4eceStream\u7684\u67d0\u4e2a\u6d88\u606fID\u5f00\u59cb\u6d88\u8d39\uff0c\u8fd9\u4e2aID\u7528\u6765\u521d\u59cb\u5316last_delivered_id\u53d8\u91cf\u3002<\/p>\n<p>\u6bcf\u4e2a\u6d88\u8d39\u7ec4(Consumer Group)\u7684\u72b6\u6001\u90fd\u662f\u72ec\u7acb\u7684\uff0c\u76f8\u4e92\u4e0d\u53d7\u5f71\u54cd\u3002\u4e5f\u5c31\u662f\u8bf4\u540c\u4e00\u4efdStream\u5185\u90e8\u7684\u6d88\u606f\u4f1a\u88ab\u6bcf\u4e2a\u6d88\u8d39\u7ec4\u90fd\u6d88\u8d39\u5230\u3002<\/p>\n<p>\u540c\u4e00\u4e2a\u6d88\u8d39\u7ec4(Consumer Group)\u53ef\u4ee5\u6302\u63a5\u591a\u4e2a\u6d88\u8d39\u8005(Consumer)\uff0c\u8fd9\u4e9b\u6d88\u8d39\u8005\u4e4b\u95f4\u662f\u7ade\u4e89\u5173\u7cfb\uff0c\u4efb\u610f\u4e00\u4e2a\u6d88\u8d39\u8005\u8bfb\u53d6\u4e86\u6d88\u606f\u90fd\u4f1a\u4f7f\u6e38\u6807last_delivered_id\u5f80\u524d\u79fb\u52a8\u3002\u6bcf\u4e2a\u6d88\u8d39\u8005\u8005\u6709\u4e00\u4e2a\u7ec4\u5185\u552f\u4e00\u540d\u79f0\u3002<\/p>\n<p>\u6d88\u8d39\u8005(Consumer)\u5185\u90e8\u4f1a\u6709\u4e2a\u72b6\u6001\u53d8\u91cfpending_ids\uff0c\u5b83\u8bb0\u5f55\u4e86\u5f53\u524d\u5df2\u7ecf\u88ab\u5ba2\u6237\u7aef\u8bfb\u53d6\u7684\u6d88\u606f\uff0c\u4f46\u662f\u8fd8\u6ca1\u6709ack\u3002\u5982\u679c\u5ba2\u6237\u7aef\u6ca1\u6709ack\uff0c\u8fd9\u4e2a\u53d8\u91cf\u91cc\u9762\u7684\u6d88\u606fID\u4f1a\u8d8a\u6765\u8d8a\u591a\uff0c\u4e00\u65e6\u67d0\u4e2a\u6d88\u606f\u88aback\uff0c\u5b83\u5c31\u5f00\u59cb\u51cf\u5c11\u3002\u8fd9\u4e2apending_ids\u53d8\u91cf\u5728Redis\u5b98\u65b9\u88ab\u79f0\u4e4b\u4e3aPEL\uff0c\u4e5f\u5c31\u662fPending Entries List\uff0c\u8fd9\u662f\u4e00\u4e2a\u5f88\u6838\u5fc3\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u7528\u6765\u786e\u4fdd\u5ba2\u6237\u7aef\u81f3\u5c11\u6d88\u8d39\u4e86\u6d88\u606f\u4e00\u6b21\uff0c\u800c\u4e0d\u4f1a\u5728\u7f51\u7edc\u4f20\u8f93\u7684\u4e2d\u9014\u4e22\u5931\u4e86\u6ca1\u5904\u7406\u3002<\/p>\n<ul>\n<li>\u6d88\u606fID\uff1a\u6d88\u606fID\u7684\u5f62\u5f0f\u662ftimestampInMillis-sequence\uff0c\u4f8b\u59821527846880572-5\uff0c\u5b83\u8868\u793a\u5f53\u524d\u7684\u6d88\u606f\u5728\u6beb\u7c73\u65f6\u95f4\u62331527846880572\u65f6\u4ea7\u751f\uff0c\u5e76\u4e14\u662f\u8be5\u6beb\u79d2\u5185\u4ea7\u751f\u7684\u7b2c5\u6761\u6d88\u606f\u3002\u6d88\u606fID\u53ef\u4ee5\u7531\u670d\u52a1\u5668\u81ea\u52a8\u751f\u6210\uff0c\u4e5f\u53ef\u4ee5\u7531\u5ba2\u6237\u7aef\u81ea\u5df1\u6307\u5b9a\uff0c\u4f46\u662f\u5f62\u5f0f\u5fc5\u987b\u662f\u6574\u6570-\u6574\u6570\uff0c\u800c\u4e14\u5fc5\u987b\u662f\u540e\u9762\u52a0\u5165\u7684\u6d88\u606f\u7684ID\u8981\u5927\u4e8e\u524d\u9762\u7684\u6d88\u606fID\u3002<\/li>\n<li>\u6d88\u606f\u5185\u5bb9\uff1a\u6d88\u606f\u5185\u5bb9\u5c31\u662f\u952e\u503c\u5bf9\uff0c\u5f62\u5982hash\u7ed3\u6784\u7684\u952e\u503c\u5bf9\uff0c\u8fd9\u6ca1\u4ec0\u4e48\u7279\u522b\u4e4b\u5904\u3002<\/li>\n<\/ul>\n<pre>127.0.0.1:6379&gt; XADD mystream * field1 value1 field2 value2 field3 value3\n\"1588491680862-0\"\n127.0.0.1:6379&gt; XADD mystream * username lisi age 18\n\"1588491854070-0\"\n127.0.0.1:6379&gt; xlen mystream\n(integer) 2\n127.0.0.1:6379&gt; XADD mystream * username lisi age 18\n\"1588491861215-0\"\n127.0.0.1:6379&gt; xrange mystream - + \n1) 1) \"1588491680862-0\"\n   2) 1) \"field1\"\n      2) \"value1\"\n      3) \"field2\"\n      4) \"value2\"\n      5) \"field3\"\n      6) \"value3\"\n2) 1) \"1588491854070-0\"\n   2) 1) \"username\"\n      2) \"lisi\"\n      3) \"age\"\n      4) \"18\"\n3) 1) \"1588491861215-0\"\n   2) 1) \"username\"\n      2) \"lisi\"\n      3) \"age\"\n      4) \"18\"\n127.0.0.1:6379&gt; xdel mystream 1588491854070-0 \n(integer) 1\n127.0.0.1:6379&gt; xrange mystream - + \n1) 1) \"1588491680862-0\"\n   2) 1) \"field1\"\n      2) \"value1\"\n      3) \"field2\"\n      4) \"value2\"\n      5) \"field3\"\n      6) \"value3\"\n2) 1) \"1588491861215-0\"\n   2) 1) \"username\"\n      2) \"lisi\"\n      3) \"age\"\n      4) \"18\"\n127.0.0.1:6379&gt; xlen mystream\n(integer) 2<\/pre>\n<h3>\u5185\u90e8\u7f16\u7801<\/h3>\n<p>streams\u5e95\u5c42\u7684\u6570\u636e\u7ed3\u6784\u662fradix tree\uff1aRadix Tree(\u57fa\u6570\u6811) \u4e8b\u5b9e\u4e0a\u5c31\u51e0\u4e4e\u76f8\u540c\u662f\u4f20\u7edf\u7684\u4e8c\u53c9\u6811\u3002\u4ec5\u4ec5\u662f\u5728\u5bfb\u627e\u65b9\u5f0f\u4e0a\uff0c\u4ee5\u4e00\u4e2aunsigned int\u7c7b\u578b\u6570\u4e3a\u4f8b\uff0c\u5229\u7528\u8fd9\u4e2a\u6570\u7684\u6bcf\u4e2a\u6bd4\u7279\u4f4d\u4f5c\u4e3a\u6811\u8282\u70b9\u7684\u63a8\u65ad\u3002<\/p>\n<p>\u80fd\u591f\u8fd9\u6837\u8bf4\uff0c\u6bd4\u65b9\u4e00\u4e2a\u657010001010101010110101010\uff0c\u90a3\u4e48\u4f9d\u7167Radix \u6811\u7684\u63d2\u5165\u5c31\u662f\u5728\u6839\u8282\u70b9\uff0c\u5047\u8bbe\u9047\u52300\uff0c\u5c31\u6307\u5411\u5de6\u8282\u70b9\uff0c\u5047\u8bbe\u9047\u52301\u5c31\u6307\u5411\u53f3\u8282\u70b9\uff0c\u5728\u63d2\u5165\u8fc7\u7a0b\u4e2d\u6784\u9020\u6811\u8282\u70b9\uff0c\u5728\u5220\u9664\u8fc7\u7a0b\u4e2d\u5220\u9664\u6811\u8282\u70b9\u3002\u5982\u4e0b\u662f\u4e00\u4e2a\u4fdd\u5b58\u4e867\u4e2a\u5355\u8bcd\u7684Radix Tree\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" style=\"max-width:100%\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779863f961766d8c9.jpg\" class=\"aligncenter\"><\/p>\n<h2>\u5e94\u7528\u573a\u666f\u603b\u7ed3<\/h2>\n<p>\u5b9e\u9645\u4e0a\uff0c\u6240\u8c13\u7684\u5e94\u7528\u573a\u666f\uff0c\u5176\u5b9e\u5c31\u662f\u5408\u7406\u7684\u5229\u7528Redis\u672c\u8eab\u7684\u6570\u636e\u7ed3\u6784\u7684\u7279\u6027\u6765\u5b8c\u6210\u76f8\u5173\u4e1a\u52a1\u529f\u80fd<\/p>\n<p style=\"text-align:center\"><strong><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167728779863f96176bea91.jpg\" class=\"aligncenter\"><\/strong><\/p>\n<h3>\u5e38\u7528\u5185\u5b58\u4f18\u5316\u624b\u6bb5\u4e0e\u53c2\u6570<\/h3>\n<p>\u901a\u8fc7\u6211\u4eec\u4e0a\u9762\u7684\u4e00\u4e9b\u5b9e\u73b0\u4e0a\u7684\u5206\u6790\u53ef\u4ee5\u770b\u51fa redis \u5b9e\u9645\u4e0a\u7684\u5185\u5b58\u7ba1\u7406\u6210\u672c\u975e\u5e38\u9ad8\uff0c\u5373\u5360\u7528\u4e86\u8fc7\u591a\u7684\u5185\u5b58\uff0c\u4f5c\u8005\u5bf9\u8fd9\u70b9\u4e5f\u975e\u5e38\u6e05\u695a\uff0c\u6240\u4ee5\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7684\u53c2\u6570\u548c\u624b\u6bb5\u6765\u63a7\u5236\u548c\u8282\u7701\u5185\u5b58\uff0c\u6211\u4eec\u5206\u522b\u6765\u8ba8\u8bba\u4e0b\u3002<\/p>\n<p>\u9996\u5148\u6700\u91cd\u8981\u7684\u4e00\u70b9\u662f\u4e0d\u8981\u5f00\u542f Redis \u7684 VM \u9009\u9879\uff0c\u5373\u865a\u62df\u5185\u5b58\u529f\u80fd\uff0c\u8fd9\u4e2a\u672c\u6765\u662f\u4f5c\u4e3a Redis \u5b58\u50a8\u8d85\u51fa\u7269\u7406\u5185\u5b58\u6570\u636e\u7684\u4e00\u79cd\u6570\u636e\u5728\u5185\u5b58\u4e0e\u78c1\u76d8\u6362\u5165\u6362\u51fa\u7684\u4e00\u4e2a\u6301\u4e45\u5316\u7b56\u7565\uff0c\u4f46\u662f\u5176\u5185\u5b58\u7ba1\u7406\u6210\u672c\u4e5f\u975e\u5e38\u7684\u9ad8\uff0c\u5e76\u4e14\u6211\u4eec\u540e\u7eed\u4f1a\u5206\u6790\u6b64\u79cd\u6301\u4e45\u5316\u7b56\u7565\u5e76\u4e0d\u6210\u719f\uff0c\u6240\u4ee5\u8981\u5173\u95ed VM \u529f\u80fd\uff0c\u8bf7\u68c0\u67e5\u4f60\u7684 redis.conf \u6587\u4ef6\u4e2d vm-enabled \u4e3a no\u3002<\/p>\n<p>&nbsp;\u5176\u6b21\u6700\u597d\u8bbe\u7f6e\u4e0b redis.conf \u4e2d\u7684 maxmemory \u9009\u9879\uff0c\u8be5\u9009\u9879\u662f\u544a\u8bc9 Redis \u5f53\u4f7f\u7528\u4e86\u591a\u5c11\u7269\u7406\u5185\u5b58\u540e\u5c31\u5f00\u59cb\u62d2\u7edd\u540e\u7eed\u7684\u5199\u5165\u8bf7\u6c42\uff0c\u8be5\u53c2\u6570\u80fd\u5f88\u597d\u7684\u4fdd\u62a4\u597d\u4f60\u7684 Redis \u4e0d\u4f1a\u56e0\u4e3a\u4f7f\u7528\u4e86\u8fc7\u591a\u7684\u7269\u7406\u5185\u5b58\u800c\u5bfc\u81f4 swap\uff0c\u6700\u7ec8\u4e25\u91cd\u5f71\u54cd\u6027\u80fd\u751a\u81f3\u5d29\u6e83\u3002<\/p>\n<p>&nbsp;\u53e6\u5916 Redis \u4e3a\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u5206\u522b\u63d0\u4f9b\u4e86\u4e00\u7ec4\u53c2\u6570\u6765\u63a7\u5236\u5185\u5b58\u4f7f\u7528\uff0c\u6211\u4eec\u5728\u524d\u9762\u8be6\u7ec6\u5206\u6790\u8fc7 Redis Hash \u662f value \u5185\u90e8\u4e3a\u4e00\u4e2a HashMap\uff0c\u5982\u679c\u8be5 Map \u7684\u6210\u5458\u6570\u6bd4\u8f83\u5c11\uff0c\u5219\u4f1a\u91c7\u7528\u7c7b\u4f3c\u4e00\u7ef4\u7ebf\u6027\u7684\u7d27\u51d1\u683c\u5f0f\u6765\u5b58\u50a8\u8be5 Map\uff0c\u5373\u7701\u53bb\u4e86\u5927\u91cf\u6307\u9488\u7684\u5185\u5b58\u5f00\u9500\uff0c\u8fd9\u4e2a\u53c2\u6570\u63a7\u5236\u5bf9\u5e94\u5728 redis.conf \u914d\u7f6e\u6587\u4ef6\u4e2d\u4e0b\u97622\u9879\uff1a<\/p>\n<pre>hash-max-ziplist-entries 64\nhash-max-zipmap-value    512<\/pre>\n<p>\u542b\u4e49\u662f\u5f53 value \u8fd9\u4e2a Map \u5185\u90e8\u4e0d\u8d85\u8fc7\u591a\u5c11\u4e2a\u6210\u5458\u65f6\u4f1a\u91c7\u7528\u7ebf\u6027\u7d27\u51d1\u683c\u5f0f\u5b58\u50a8\uff0c\u9ed8\u8ba4\u662f64\uff0c\u5373 value \u5185\u90e8\u670964\u4e2a\u4ee5\u4e0b\u7684\u6210\u5458\u5c31\u662f\u4f7f\u7528\u7ebf\u6027\u7d27\u51d1\u5b58\u50a8\uff0c\u8d85\u8fc7\u8be5\u503c\u81ea\u52a8\u8f6c\u6210\u771f\u6b63\u7684 HashMap\u3002<\/p>\n<p>hash-max-zipmap-value \u542b\u4e49\u662f\u5f53 value \u8fd9\u4e2a Map \u5185\u90e8\u7684\u6bcf\u4e2a\u6210\u5458\u503c\u957f\u5ea6\u4e0d\u8d85\u8fc7\u591a\u5c11\u5b57\u8282\u5c31\u4f1a\u91c7\u7528\u7ebf\u6027\u7d27\u51d1\u5b58\u50a8\u6765\u8282\u7701\u7a7a\u95f4\u3002<\/p>\n<p>\u4ee5\u4e0a2\u4e2a\u6761\u4ef6\u4efb\u610f\u4e00\u4e2a\u6761\u4ef6\u8d85\u8fc7\u8bbe\u7f6e\u503c\u90fd\u4f1a\u8f6c\u6362\u6210\u771f\u6b63\u7684 HashMap\uff0c\u4e5f\u5c31\u4e0d\u4f1a\u518d\u8282\u7701\u5185\u5b58\u4e86\uff0c\u90a3\u4e48\u8fd9\u4e2a\u503c\u662f\u4e0d\u662f\u8bbe\u7f6e\u7684\u8d8a\u5927\u8d8a\u597d\u5462\uff0c\u7b54\u6848\u5f53\u7136\u662f\u5426\u5b9a\u7684\uff0cHashMap \u7684\u4f18\u52bf\u5c31\u662f\u67e5\u627e\u548c\u64cd\u4f5c\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u90fd\u662f O(1) \u7684\uff0c\u800c\u653e\u5f03 Hash \u91c7\u7528\u4e00\u7ef4\u5b58\u50a8\u5219\u662f O(n) \u7684\u65f6\u95f4\u590d\u6742\u5ea6\uff0c\u5982\u679c\u6210\u5458\u6570\u91cf\u5f88\u5c11\uff0c\u5219\u5f71\u54cd\u4e0d\u5927\uff0c\u5426\u5219\u4f1a\u4e25\u91cd\u5f71\u54cd\u6027\u80fd\uff0c\u6240\u4ee5\u8981\u6743\u8861\u597d\u8fd9\u4e2a\u503c\u7684\u8bbe\u7f6e\uff0c\u603b\u4f53\u4e0a\u8fd8\u662f\u6700\u6839\u672c\u7684\u65f6\u95f4\u6210\u672c\u548c\u7a7a\u95f4\u6210\u672c\u4e0a\u7684\u6743\u8861\u3002<\/p>\n<p>\u540c\u6837\u7c7b\u4f3c\u7684\u53c2\u6570\u8fd8\u6709<\/p>\n<pre>list-max-ziplist-entries 512  <\/pre>\n<p>\u8bf4\u660e\uff1alist \u6570\u636e\u7c7b\u578b\u591a\u5c11\u8282\u70b9\u4ee5\u4e0b\u4f1a\u91c7\u7528\u53bb\u6307\u9488\u7684\u7d27\u51d1\u5b58\u50a8\u683c\u5f0f\u3002<\/p>\n<pre>list-max-ziplist-value   64 <\/pre>\n<p>\u8bf4\u660e\uff1alist \u6570\u636e\u7c7b\u578b\u8282\u70b9\u503c\u5927\u5c0f\u5c0f\u4e8e\u591a\u5c11\u5b57\u8282\u4f1a\u91c7\u7528\u7d27\u51d1\u5b58\u50a8\u683c\u5f0f\u3002<\/p>\n<pre>set-max-intset-entries 512<\/pre>\n<p>\u8bf4\u660e\uff1aset \u6570\u636e\u7c7b\u578b\u5185\u90e8\u6570\u636e\u5982\u679c\u5168\u90e8\u662f\u6570\u503c\u578b\uff0c\u4e14\u5305\u542b\u591a\u5c11\u8282\u70b9\u4ee5\u4e0b\u4f1a\u91c7\u7528\u7d27\u51d1\u683c\u5f0f\u5b58\u50a8\u3002<\/p>\n<p>\u6700\u540e\u60f3\u8bf4\u7684\u662f Redis \u5185\u90e8\u5b9e\u73b0\u6ca1\u6709\u5bf9\u5185\u5b58\u5206\u914d\u65b9\u9762\u505a\u8fc7\u591a\u7684\u4f18\u5316\uff0c\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u4f1a\u5b58\u5728\u5185\u5b58\u788e\u7247\uff0c\u4e0d\u8fc7\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u8fd9\u4e2a\u4e0d\u4f1a\u6210\u4e3a Redis \u7684\u6027\u80fd\u74f6 \u9888\uff0c\u4e0d\u8fc7\u5982\u679c\u5728 Redis \u5185\u90e8\u5b58\u50a8\u7684\u5927\u90e8\u5206\u6570\u636e\u662f\u6570\u503c\u578b\u7684\u8bdd\uff0cRedis \u5185\u90e8\u91c7\u7528\u4e86\u4e00\u4e2a shared integer \u7684\u65b9\u5f0f\u6765\u7701\u53bb\u5206\u914d\u5185\u5b58\u7684\u5f00\u9500\uff0c\u5373\u5728\u7cfb\u7edf\u542f\u52a8\u65f6\u5148\u5206\u914d\u4e00\u4e2a\u4ece 1~n \u90a3\u4e48\u591a\u4e2a\u6570\u503c\u5bf9\u8c61\u653e\u5728\u4e00\u4e2a\u6c60\u5b50\u4e2d\uff0c\u5982\u679c\u5b58\u50a8\u7684\u6570\u636e\u6070\u597d\u662f\u8fd9\u4e2a\u6570\u503c\u8303\u56f4\u5185\u7684\u6570\u636e\uff0c\u5219\u76f4\u63a5\u4ece\u6c60\u5b50\u91cc\u53d6\u51fa\u8be5\u5bf9\u8c61\uff0c\u5e76\u4e14\u901a\u8fc7\u5f15\u7528\u8ba1\u6570\u7684\u65b9\u5f0f\u6765\u5171\u4eab\uff0c\u8fd9\u6837\u5728\u7cfb\u7edf\u5b58\u50a8\u4e86\u5927\u91cf\u6570\u503c\u4e0b\uff0c\u4e5f\u80fd\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u8282\u7701\u5185\u5b58\u5e76\u4e14\u63d0\u9ad8\u6027\u80fd\uff0c\u8fd9\u4e2a\u53c2\u6570\u503c n \u7684\u8bbe\u7f6e\u9700\u8981\u4fee\u6539\u6e90\u4ee3\u7801\u4e2d\u7684\u4e00\u884c\u5b8f\u5b9a\u4e49 REDIS_SHARED_INTEGERS\uff0c\u8be5\u503c \u9ed8\u8ba4\u662f 10000\uff0c\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u8fdb\u884c\u4fee\u6539\uff0c\u4fee\u6539\u540e\u91cd\u65b0\u7f16\u8bd1\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u4ee5\u4e0a\u4e3a\u4e2a\u4eba\u7ecf\u9a8c\uff0c\u5e0c\u671b\u80fd\u7ed9\u5927\u5bb6\u4e00\u4e2a\u53c2\u8003\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u591a\u591a\u652f\u6301golang\u5b66\u4e60\u7f51\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u76849\u79cd\u6570\u636e\u7c7b\u578b\u7528\u6cd5\u89e3\u8bfb&#46;&#46;&#46;<\/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-201584","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201584","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=201584"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201584\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}