{"id":5595,"date":"2021-09-28T23:08:01","date_gmt":"2021-09-28T15:08:01","guid":{"rendered":"https:\/\/damogame.cn:15443\/wordpress\/?p=5595"},"modified":"2021-09-28T23:08:01","modified_gmt":"2021-09-28T15:08:01","slug":"redis%e5%9f%ba%e7%a1%80%e3%80%81%e9%ab%98%e7%ba%a7%e7%89%b9%e6%80%a7%e4%b8%8e%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/5595","title":{"rendered":"Redis\u57fa\u7840\u3001\u9ad8\u7ea7\u7279\u6027\u4e0e\u6027\u80fd\u8c03\u4f18"},"content":{"rendered":"<p><a href=\"https:\/\/www.cnblogs.com\/276815076\/p\/7245333.html\">\u539f\u6587\u5730\u5740<\/a><\/p>\n<p>&nbsp;<\/p>\n<div class=\"postText\">\n<div id=\"cnblogs_post_body\" class=\"blogpost-body blogpost-body-html\">\n<div class=\"show-content\" data-note-content=\"\">\n<p>\u672c\u6587\u5c06\u4eceRedis\u7684\u57fa\u672c\u7279\u6027\u5165\u624b\uff0c\u901a\u8fc7\u8bb2\u8ff0Redis\u7684\u6570\u636e\u7ed3\u6784\u548c\u4e3b\u8981\u547d\u4ee4\u5bf9Redis\u7684\u57fa\u672c\u80fd\u529b\u8fdb\u884c\u76f4\u89c2\u4ecb\u7ecd\u3002\u4e4b\u540e\u6982\u89c8Redis\u63d0\u4f9b\u7684\u9ad8\u7ea7\u80fd\u529b\uff0c\u5e76\u5728\u90e8\u7f72\u3001\u7ef4\u62a4\u3001\u6027\u80fd\u8c03\u4f18\u7b49\u591a\u4e2a\u65b9\u9762\u8fdb\u884c\u66f4\u6df1\u5165\u7684\u4ecb\u7ecd\u548c\u6307\u5bfc\u3002<br \/>\n\u672c\u6587\u9002\u5408\u4f7f\u7528Redis\u7684\u666e\u901a\u5f00\u53d1\u4eba\u5458\uff0c\u4ee5\u53ca\u5bf9Redis\u8fdb\u884c\u9009\u578b\u3001\u67b6\u6784\u8bbe\u8ba1\u548c\u6027\u80fd\u8c03\u4f18\u7684\u67b6\u6784\u8bbe\u8ba1\u4eba\u5458\u3002<\/p>\n<h2>\u76ee\u5f55<\/h2>\n<ul>\n<li>\u6982\u8ff0<\/li>\n<li>Redis\u7684\u6570\u636e\u7ed3\u6784\u548c\u76f8\u5173\u5e38\u7528\u547d\u4ee4<\/li>\n<li>\u6570\u636e\u6301\u4e45\u5316<\/li>\n<li>\u5185\u5b58\u7ba1\u7406\u4e0e\u6570\u636e\u6dd8\u6c70\u673a\u5236<\/li>\n<li>Pipelining<\/li>\n<li>\u4e8b\u52a1\u4e0eScripting<\/li>\n<li>Redis\u6027\u80fd\u8c03\u4f18<\/li>\n<li>\u4e3b\u4ece\u590d\u5236\u4e0e\u96c6\u7fa4\u5206\u7247<\/li>\n<li>Redis Java\u5ba2\u6237\u7aef\u7684\u9009\u62e9<\/li>\n<\/ul>\n<h2>\u6982\u8ff0<\/h2>\n<p>Redis\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\uff0c\u57fa\u4e8e\u5185\u5b58\u7684\u7ed3\u6784\u5316\u6570\u636e\u5b58\u50a8\u5a92\u4ecb\uff0c\u53ef\u4ee5\u4f5c\u4e3a\u6570\u636e\u5e93\u3001\u7f13\u5b58\u670d\u52a1\u6216\u6d88\u606f\u670d\u52a1\u4f7f\u7528\u3002<br \/>\nRedis\u652f\u6301\u591a\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u8868\u3001\u94fe\u8868\u3001\u96c6\u5408\u3001\u6709\u5e8f\u96c6\u5408\u3001\u4f4d\u56fe\u3001Hyperloglogs\u7b49\u3002<br \/>\nRedis\u5177\u5907LRU\u6dd8\u6c70\u3001\u4e8b\u52a1\u5b9e\u73b0\u3001\u4ee5\u53ca\u4e0d\u540c\u7ea7\u522b\u7684\u786c\u76d8\u6301\u4e45\u5316\u7b49\u80fd\u529b\uff0c\u5e76\u4e14\u652f\u6301\u526f\u672c\u96c6\u548c\u901a\u8fc7Redis Sentinel\u5b9e\u73b0\u7684\u9ad8\u53ef\u7528\u65b9\u6848\uff0c\u540c\u65f6\u8fd8\u652f\u6301\u901a\u8fc7Redis Cluster\u5b9e\u73b0\u7684\u6570\u636e\u81ea\u52a8\u5206\u7247\u80fd\u529b\u3002<\/p>\n<p>Redis\u7684\u4e3b\u8981\u529f\u80fd\u90fd\u57fa\u4e8e\u5355\u7ebf\u7a0b\u6a21\u578b\u5b9e\u73b0\uff0c\u4e5f\u5c31\u662f\u8bf4Redis\u4f7f\u7528\u4e00\u4e2a\u7ebf\u7a0b\u6765\u670d\u52a1\u6240\u6709\u7684\u5ba2\u6237\u7aef\u8bf7\u6c42\uff0c\u540c\u65f6Redis\u91c7\u7528\u4e86\u975e\u963b\u585e\u5f0fIO\uff0c\u5e76\u7cbe\u7ec6\u5730\u4f18\u5316\u5404\u79cd\u547d\u4ee4\u7684\u7b97\u6cd5\u65f6\u95f4\u590d\u6742\u5ea6\uff0c\u8fd9\u4e9b\u4fe1\u606f\u610f\u5473\u7740\uff1a<\/p>\n<ul>\n<li>Redis\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff08\u56e0\u4e3a\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\uff09\uff0c\u5176\u6240\u6709\u64cd\u4f5c\u90fd\u662f\u539f\u5b50\u7684\uff0c\u4e0d\u4f1a\u56e0\u5e76\u53d1\u4ea7\u751f\u6570\u636e\u5f02\u5e38<\/li>\n<li>Redis\u7684\u901f\u5ea6\u975e\u5e38\u5feb\uff08\u56e0\u4e3a\u4f7f\u7528\u975e\u963b\u585e\u5f0fIO\uff0c\u4e14\u5927\u90e8\u5206\u547d\u4ee4\u7684\u7b97\u6cd5\u65f6\u95f4\u590d\u6742\u5ea6\u90fd\u662fO(1))<\/li>\n<li>\u4f7f\u7528\u9ad8\u8017\u65f6\u7684Redis\u547d\u4ee4\u662f\u5f88\u5371\u9669\u7684\uff0c\u4f1a\u5360\u7528\u552f\u4e00\u7684\u4e00\u4e2a\u7ebf\u7a0b\u7684\u5927\u91cf\u5904\u7406\u65f6\u95f4\uff0c\u5bfc\u81f4\u6240\u6709\u7684\u8bf7\u6c42\u90fd\u88ab\u62d6\u6162\u3002\uff08\u4f8b\u5982\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(N)\u7684KEYS\u547d\u4ee4\uff0c\u4e25\u683c\u7981\u6b62\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u4f7f\u7528\uff09<\/li>\n<\/ul>\n<h2>Redis\u7684\u6570\u636e\u7ed3\u6784\u548c\u76f8\u5173\u5e38\u7528\u547d\u4ee4<\/h2>\n<p>\u672c\u8282\u4e2d\u5c06\u4ecb\u7ecdRedis\u652f\u6301\u7684\u4e3b\u8981\u6570\u636e\u7ed3\u6784\uff0c\u4ee5\u53ca\u76f8\u5173\u7684\u5e38\u7528Redis\u547d\u4ee4\u3002\u672c\u8282\u53ea\u5bf9Redis\u547d\u4ee4\u8fdb\u884c\u627c\u8981\u7684\u4ecb\u7ecd\uff0c\u4e14\u53ea\u5217\u51fa\u4e86\u8f83\u5e38\u7528\u7684\u547d\u4ee4\u3002\u5982\u679c\u60f3\u8981\u4e86\u89e3\u5b8c\u6574\u7684Redis\u547d\u4ee4\u96c6\uff0c\u6216\u4e86\u89e3\u67d0\u4e2a\u547d\u4ee4\u7684\u8be6\u7ec6\u4f7f\u7528\u65b9\u6cd5\uff0c\u8bf7\u53c2\u8003\u5b98\u65b9\u6587\u6863\uff1a<a href=\"https:\/\/redis.io\/commands\" target=\"_blank\" rel=\"noopener\">https:\/\/redis.io\/commands<\/a><\/p>\n<h3>Key<\/h3>\n<p>Redis\u91c7\u7528Key-Value\u578b\u7684\u57fa\u672c\u6570\u636e\u7ed3\u6784\uff0c\u4efb\u4f55\u4e8c\u8fdb\u5236\u5e8f\u5217\u90fd\u53ef\u4ee5\u4f5c\u4e3aRedis\u7684Key\u4f7f\u7528\uff08\u4f8b\u5982\u666e\u901a\u7684\u5b57\u7b26\u4e32\u6216\u4e00\u5f20JPEG\u56fe\u7247\uff09<br \/>\n\u5173\u4e8eKey\u7684\u4e00\u4e9b\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n<ul>\n<li>\u4e0d\u8981\u4f7f\u7528\u8fc7\u957f\u7684Key\u3002\u4f8b\u5982\u4f7f\u7528\u4e00\u4e2a1024\u5b57\u8282\u7684key\u5c31\u4e0d\u662f\u4e00\u4e2a\u597d\u4e3b\u610f\uff0c\u4e0d\u4ec5\u4f1a\u6d88\u8017\u66f4\u591a\u7684\u5185\u5b58\uff0c\u8fd8\u4f1a\u5bfc\u81f4\u67e5\u627e\u7684\u6548\u7387\u964d\u4f4e<\/li>\n<li>Key\u77ed\u5230\u7f3a\u5931\u4e86\u53ef\u8bfb\u6027\u4e5f\u662f\u4e0d\u597d\u7684\uff0c\u4f8b\u5982&#8221;u1000flw&#8221;\u6bd4\u8d77&#8221;user:1000:followers&#8221;\u6765\u8bf4\uff0c\u8282\u7701\u4e86\u5be5\u5be5\u7684\u5b58\u50a8\u7a7a\u95f4\uff0c\u5374\u5f15\u53d1\u4e86\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u4e0a\u7684\u9ebb\u70e6<\/li>\n<li>\u6700\u597d\u4f7f\u7528\u7edf\u4e00\u7684\u89c4\u8303\u6765\u8bbe\u8ba1Key\uff0c\u6bd4\u5982&#8221;object-type:id:attr&#8221;\uff0c\u4ee5\u8fd9\u4e00\u89c4\u8303\u8bbe\u8ba1\u51fa\u7684Key\u53ef\u80fd\u662f&#8221;user:1000&#8243;\u6216&#8221;comment:1234:reply-to&#8221;<\/li>\n<li>Redis\u5141\u8bb8\u7684\u6700\u5927Key\u957f\u5ea6\u662f512MB\uff08\u5bf9Value\u7684\u957f\u5ea6\u9650\u5236\u4e5f\u662f512MB\uff09<\/li>\n<\/ul>\n<h3>String<\/h3>\n<p>String\u662fRedis\u7684\u57fa\u7840\u6570\u636e\u7c7b\u578b\uff0cRedis\u6ca1\u6709Int\u3001Float\u3001Boolean\u7b49\u6570\u636e\u7c7b\u578b\u7684\u6982\u5ff5\uff0c\u6240\u6709\u7684\u57fa\u672c\u7c7b\u578b\u5728Redis\u4e2d\u90fd\u4ee5String\u4f53\u73b0\u3002<\/p>\n<p>\u4e0eString\u76f8\u5173\u7684\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><strong>SET<\/strong>\uff1a\u4e3a\u4e00\u4e2akey\u8bbe\u7f6evalue\uff0c\u53ef\u4ee5\u914d\u5408EX\/PX\u53c2\u6570\u6307\u5b9akey\u7684\u6709\u6548\u671f\uff0c\u901a\u8fc7NX\/XX\u53c2\u6570\u9488\u5bf9key\u662f\u5426\u5b58\u5728\u7684\u60c5\u51b5\u8fdb\u884c\u533a\u522b\u64cd\u4f5c\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>GET<\/strong>\uff1a\u83b7\u53d6\u67d0\u4e2akey\u5bf9\u5e94\u7684value\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>GETSET<\/strong>\uff1a\u4e3a\u4e00\u4e2akey\u8bbe\u7f6evalue\uff0c\u5e76\u8fd4\u56de\u8be5key\u7684\u539fvalue\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>MSET<\/strong>\uff1a\u4e3a\u591a\u4e2akey\u8bbe\u7f6evalue\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)<\/li>\n<li><strong>MSETNX<\/strong>\uff1a\u540cMSET\uff0c\u5982\u679c\u6307\u5b9a\u7684key\u4e2d\u6709\u4efb\u610f\u4e00\u4e2a\u5df2\u5b58\u5728\uff0c\u5219\u4e0d\u8fdb\u884c\u4efb\u4f55\u64cd\u4f5c\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)<\/li>\n<li><strong>MGET<\/strong>\uff1a\u83b7\u53d6\u591a\u4e2akey\u5bf9\u5e94\u7684value\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)<\/li>\n<\/ul>\n<p>\u4e0a\u6587\u63d0\u5230\u8fc7\uff0cRedis\u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\u53ea\u6709String\uff0c\u4f46Redis\u53ef\u4ee5\u628aString\u4f5c\u4e3a\u6574\u578b\u6216\u6d6e\u70b9\u578b\u6570\u5b57\u6765\u4f7f\u7528\uff0c\u4e3b\u8981\u4f53\u73b0\u5728INCR\u3001DECR\u7c7b\u7684\u547d\u4ee4\u4e0a\uff1a<\/p>\n<ul>\n<li><strong>INCR<\/strong>\uff1a\u5c06key\u5bf9\u5e94\u7684value\u503c\u81ea\u589e1\uff0c\u5e76\u8fd4\u56de\u81ea\u589e\u540e\u7684\u503c\u3002\u53ea\u5bf9\u53ef\u4ee5\u8f6c\u6362\u4e3a\u6574\u578b\u7684String\u6570\u636e\u8d77\u4f5c\u7528\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>INCRBY<\/strong>\uff1a\u5c06key\u5bf9\u5e94\u7684value\u503c\u81ea\u589e\u6307\u5b9a\u7684\u6574\u578b\u6570\u503c\uff0c\u5e76\u8fd4\u56de\u81ea\u589e\u540e\u7684\u503c\u3002\u53ea\u5bf9\u53ef\u4ee5\u8f6c\u6362\u4e3a\u6574\u578b\u7684String\u6570\u636e\u8d77\u4f5c\u7528\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>DECR\/DECRBY<\/strong>\uff1a\u540cINCR\/INCRBY\uff0c\u81ea\u589e\u6539\u4e3a\u81ea\u51cf\u3002<\/li>\n<\/ul>\n<p>INCR\/DECR\u7cfb\u5217\u547d\u4ee4\u8981\u6c42\u64cd\u4f5c\u7684value\u7c7b\u578b\u4e3aString\uff0c\u5e76\u53ef\u4ee5\u8f6c\u6362\u4e3a64\u4f4d\u5e26\u7b26\u53f7\u7684\u6574\u578b\u6570\u5b57\uff0c\u5426\u5219\u4f1a\u8fd4\u56de\u9519\u8bef\u3002<br \/>\n\u4e5f\u5c31\u662f\u8bf4\uff0c\u8fdb\u884cINCR\/DECR\u7cfb\u5217\u547d\u4ee4\u7684value\uff0c\u5fc5\u987b\u5728[-2^63 ~ 2^63 &#8211; 1]\u8303\u56f4\u5185\u3002<\/p>\n<p>\u524d\u6587\u63d0\u5230\u8fc7\uff0cRedis\u91c7\u7528\u5355\u7ebf\u7a0b\u6a21\u578b\uff0c\u5929\u7136\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u8fd9\u4f7f\u5f97INCR\/DECR\u547d\u4ee4\u53ef\u4ee5\u975e\u5e38\u4fbf\u5229\u7684\u5b9e\u73b0\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u7684\u7cbe\u786e\u63a7\u5236\u3002<\/p>\n<h4>\u4f8b1\uff1a\u5e93\u5b58\u63a7\u5236<\/h4>\n<p>\u5728\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u5b9e\u73b0\u5e93\u5b58\u4f59\u91cf\u7684\u7cbe\u51c6\u6821\u9a8c\uff0c\u786e\u4fdd\u4e0d\u51fa\u73b0\u8d85\u5356\u7684\u60c5\u51b5\u3002<\/p>\n<p>\u8bbe\u7f6e\u5e93\u5b58\u603b\u91cf\uff1a<\/p>\n<pre class=\"hljs bash\"><code class=\"bash hljs\">SET inv:remain <span class=\"hljs-string\">\"100\"<\/span><\/code><\/pre>\n<p>\u5e93\u5b58\u6263\u51cf+\u4f59\u91cf\u6821\u9a8c\uff1a<\/p>\n<pre class=\"hljs bash\"><code class=\"bash hljs\">DECR inv:remain<\/code><\/pre>\n<p>\u5f53DECR\u547d\u4ee4\u8fd4\u56de\u503c\u5927\u4e8e\u7b49\u4e8e0\u65f6\uff0c\u8bf4\u660e\u5e93\u5b58\u4f59\u91cf\u6821\u9a8c\u901a\u8fc7\uff0c\u5982\u679c\u8fd4\u56de\u5c0f\u4e8e0\u7684\u503c\uff0c\u5219\u8bf4\u660e\u5e93\u5b58\u5df2\u8017\u5c3d\u3002<\/p>\n<p>\u5047\u8bbe\u540c\u65f6\u6709300\u4e2a\u5e76\u53d1\u8bf7\u6c42\u8fdb\u884c\u5e93\u5b58\u6263\u51cf\uff0cRedis\u80fd\u591f\u786e\u4fdd\u8fd9300\u4e2a\u8bf7\u6c42\u5206\u522b\u5f97\u523099\u5230-200\u7684\u8fd4\u56de\u503c\uff0c\u6bcf\u4e2a\u8bf7\u6c42\u5f97\u5230\u7684\u8fd4\u56de\u503c\u90fd\u662f\u552f\u4e00\u7684\uff0c\u7edd\u5bf9\u4e0d\u4f1a\u627e\u51fa\u73b0\u4e24\u4e2a\u8bf7\u6c42\u5f97\u5230\u4e00\u6837\u7684\u8fd4\u56de\u503c\u7684\u60c5\u51b5\u3002<\/p>\n<h4>\u4f8b2\uff1a\u81ea\u589e\u5e8f\u5217\u751f\u6210<\/h4>\n<p>\u5b9e\u73b0\u7c7b\u4f3c\u4e8eRDBMS\u7684Sequence\u529f\u80fd\uff0c\u751f\u6210\u4e00\u7cfb\u5217\u552f\u4e00\u7684\u5e8f\u5217\u53f7<\/p>\n<p>\u8bbe\u7f6e\u5e8f\u5217\u8d77\u59cb\u503c\uff1a<\/p>\n<pre class=\"hljs bash\"><code class=\"bash hljs\">SET sequence <span class=\"hljs-string\">\"10000\"<\/span><\/code><\/pre>\n<p>\u83b7\u53d6\u4e00\u4e2a\u5e8f\u5217\u503c\uff1a<\/p>\n<pre class=\"hljs bash\"><code class=\"bash hljs\">INCR sequence<\/code><\/pre>\n<p>\u76f4\u63a5\u5c06\u8fd4\u56de\u503c\u4f5c\u4e3a\u5e8f\u5217\u4f7f\u7528\u5373\u53ef\u3002<\/p>\n<p>\u83b7\u53d6\u4e00\u6279\uff08\u5982100\u4e2a\uff09\u5e8f\u5217\u503c\uff1a<\/p>\n<pre class=\"hljs bash\"><code class=\"bash hljs\">INCRBY sequence 100<\/code><\/pre>\n<p>\u5047\u8bbe\u8fd4\u56de\u503c\u4e3aN\uff0c\u90a3\u4e48[N &#8211; 99 ~ N]\u7684\u6570\u503c\u90fd\u662f\u53ef\u7528\u7684\u5e8f\u5217\u503c\u3002<\/p>\n<p>\u5f53\u591a\u4e2a\u5ba2\u6237\u7aef\u540c\u65f6\u5411Redis\u7533\u8bf7\u81ea\u589e\u5e8f\u5217\u65f6\uff0cRedis\u80fd\u591f\u786e\u4fdd\u6bcf\u4e2a\u5ba2\u6237\u7aef\u5f97\u5230\u7684\u5e8f\u5217\u503c\u6216\u5e8f\u5217\u8303\u56f4\u90fd\u662f\u5168\u5c40\u552f\u4e00\u7684\uff0c\u7edd\u5bf9\u4e0d\u4f1a\u51fa\u73b0\u4e0d\u540c\u5ba2\u6237\u7aef\u5f97\u5230\u4e86\u91cd\u590d\u7684\u5e8f\u5217\u503c\u7684\u60c5\u51b5\u3002<\/p>\n<h3>List<\/h3>\n<p>Redis\u7684List\u662f\u94fe\u8868\u578b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u4f7f\u7528LPUSH\/RPUSH\/LPOP\/RPOP\u7b49\u547d\u4ee4\u5728List\u7684\u4e24\u7aef\u6267\u884c\u63d2\u5165\u5143\u7d20\u548c\u5f39\u51fa\u5143\u7d20\u7684\u64cd\u4f5c\u3002\u867d\u7136List\u4e5f\u652f\u6301\u5728\u7279\u5b9aindex\u4e0a\u63d2\u5165\u548c\u8bfb\u53d6\u5143\u7d20\u7684\u529f\u80fd\uff0c\u4f46\u5176\u65f6\u95f4\u590d\u6742\u5ea6\u8f83\u9ad8\uff08O(N)\uff09\uff0c\u5e94\u5c0f\u5fc3\u4f7f\u7528\u3002<\/p>\n<p>\u4e0eList\u76f8\u5173\u7684\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><strong>LPUSH<\/strong>\uff1a\u5411\u6307\u5b9aList\u7684\u5de6\u4fa7\uff08\u5373\u5934\u90e8\uff09\u63d2\u51651\u4e2a\u6216\u591a\u4e2a\u5143\u7d20\uff0c\u8fd4\u56de\u63d2\u5165\u540e\u7684List\u957f\u5ea6\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(N)\uff0cN\u4e3a\u63d2\u5165\u5143\u7d20\u7684\u6570\u91cf<\/li>\n<li><strong>RPUSH<\/strong>\uff1a\u540cLPUSH\uff0c\u5411\u6307\u5b9aList\u7684\u53f3\u4fa7\uff08\u5373\u5c3e\u90e8\uff09\u63d2\u51651\u6216\u591a\u4e2a\u5143\u7d20<\/li>\n<li><strong>LPOP<\/strong>\uff1a\u4ece\u6307\u5b9aList\u7684\u5de6\u4fa7\uff08\u5373\u5934\u90e8\uff09\u79fb\u9664\u4e00\u4e2a\u5143\u7d20\u5e76\u8fd4\u56de\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>RPOP<\/strong>\uff1a\u540cLPOP\uff0c\u4ece\u6307\u5b9aList\u7684\u53f3\u4fa7\uff08\u5373\u5c3e\u90e8\uff09\u79fb\u96641\u4e2a\u5143\u7d20\u5e76\u8fd4\u56de<\/li>\n<li><strong>LPUSHX\/RPUSHX<\/strong>\uff1a\u4e0eLPUSH\/RPUSH\u7c7b\u4f3c\uff0c\u533a\u522b\u5728\u4e8e\uff0cLPUSHX\/RPUSHX\u64cd\u4f5c\u7684key\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u4f1a\u8fdb\u884c\u4efb\u4f55\u64cd\u4f5c<\/li>\n<li><strong>LLEN<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aList\u7684\u957f\u5ea6\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>LRANGE<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aList\u4e2d\u6307\u5b9a\u8303\u56f4\u7684\u5143\u7d20\uff08\u53cc\u7aef\u5305\u542b\uff0c\u5373LRANGE key 0 10\u4f1a\u8fd4\u56de11\u4e2a\u5143\u7d20\uff09\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)\u3002\u5e94\u5c3d\u53ef\u80fd\u63a7\u5236\u4e00\u6b21\u83b7\u53d6\u7684\u5143\u7d20\u6570\u91cf\uff0c\u4e00\u6b21\u83b7\u53d6\u8fc7\u5927\u8303\u56f4\u7684List\u5143\u7d20\u4f1a\u5bfc\u81f4\u5ef6\u8fdf\uff0c\u540c\u65f6\u5bf9\u957f\u5ea6\u4e0d\u53ef\u9884\u77e5\u7684List\uff0c\u907f\u514d\u4f7f\u7528LRANGE key 0 -1\u8fd9\u6837\u7684\u5b8c\u6574\u904d\u5386\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<p>\u5e94\u8c28\u614e\u4f7f\u7528\u7684List\u76f8\u5173\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><strong>LINDEX<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aList\u6307\u5b9aindex\u4e0a\u7684\u5143\u7d20\uff0c\u5982\u679cindex\u8d8a\u754c\uff0c\u8fd4\u56denil\u3002index\u6570\u503c\u662f\u56de\u73af\u7684\uff0c\u5373-1\u4ee3\u8868List\u6700\u540e\u4e00\u4e2a\u4f4d\u7f6e\uff0c-2\u4ee3\u8868List\u5012\u6570\u7b2c\u4e8c\u4e2a\u4f4d\u7f6e\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(N)<\/li>\n<li><strong>LSET<\/strong>\uff1a\u5c06\u6307\u5b9aList\u6307\u5b9aindex\u4e0a\u7684\u5143\u7d20\u8bbe\u7f6e\u4e3avalue\uff0c\u5982\u679cindex\u8d8a\u754c\u5219\u8fd4\u56de\u9519\u8bef\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)\uff0c\u5982\u679c\u64cd\u4f5c\u7684\u662f\u5934\/\u5c3e\u90e8\u7684\u5143\u7d20\uff0c\u5219\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(1)<\/li>\n<li><strong>LINSERT<\/strong>\uff1a\u5411\u6307\u5b9aList\u4e2d\u6307\u5b9a\u5143\u7d20\u4e4b\u524d\/\u4e4b\u540e\u63d2\u5165\u4e00\u4e2a\u65b0\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u64cd\u4f5c\u540e\u7684List\u957f\u5ea6\u3002\u5982\u679c\u6307\u5b9a\u7684\u5143\u7d20\u4e0d\u5b58\u5728\uff0c\u8fd4\u56de-1\u3002\u5982\u679c\u6307\u5b9akey\u4e0d\u5b58\u5728\uff0c\u4e0d\u4f1a\u8fdb\u884c\u4efb\u4f55\u64cd\u4f5c\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)<\/li>\n<\/ul>\n<p>\u7531\u4e8eRedis\u7684List\u662f\u94fe\u8868\u7ed3\u6784\u7684\uff0c\u4e0a\u8ff0\u7684\u4e09\u4e2a\u547d\u4ee4\u7684\u7b97\u6cd5\u6548\u7387\u8f83\u4f4e\uff0c\u9700\u8981\u5bf9List\u8fdb\u884c\u904d\u5386\uff0c\u547d\u4ee4\u7684\u8017\u65f6\u65e0\u6cd5\u9884\u4f30\uff0c\u5728List\u957f\u5ea6\u5927\u7684\u60c5\u51b5\u4e0b\u8017\u65f6\u4f1a\u660e\u663e\u589e\u52a0\uff0c\u5e94\u8c28\u614e\u4f7f\u7528\u3002<\/p>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0cRedis\u7684List\u5b9e\u9645\u662f\u8bbe\u8ba1\u6765\u7528\u4e8e\u5b9e\u73b0\u961f\u5217\uff0c\u800c\u4e0d\u662f\u7528\u4e8e\u5b9e\u73b0\u7c7b\u4f3cArrayList\u8fd9\u6837\u7684\u5217\u8868\u7684\u3002\u5982\u679c\u4f60\u4e0d\u662f\u60f3\u8981\u5b9e\u73b0\u4e00\u4e2a\u53cc\u7aef\u51fa\u5165\u7684\u961f\u5217\uff0c\u90a3\u4e48\u8bf7\u5c3d\u91cf\u4e0d\u8981\u4f7f\u7528Redis\u7684List\u6570\u636e\u7ed3\u6784\u3002<\/p>\n<p>\u4e3a\u4e86\u66f4\u597d\u652f\u6301\u961f\u5217\u7684\u7279\u6027\uff0cRedis\u8fd8\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u963b\u585e\u5f0f\u7684\u64cd\u4f5c\u547d\u4ee4\uff0c\u5982BLPOP\/BRPOP\u7b49\uff0c\u80fd\u591f\u5b9e\u73b0\u7c7b\u4f3c\u4e8eBlockingQueue\u7684\u80fd\u529b\uff0c\u5373\u5728List\u4e3a\u7a7a\u65f6\uff0c\u963b\u585e\u8be5\u8fde\u63a5\uff0c\u76f4\u5230List\u4e2d\u6709\u5bf9\u8c61\u53ef\u4ee5\u51fa\u961f\u65f6\u518d\u8fd4\u56de\u3002\u9488\u5bf9\u963b\u585e\u7c7b\u7684\u547d\u4ee4\uff0c\u6b64\u5904\u4e0d\u505a\u8be6\u7ec6\u63a2\u8ba8\uff0c\u8bf7\u53c2\u8003\u5b98\u65b9\u6587\u6863\uff08<a href=\"https:\/\/redis.io\/topics\/data-types-intro%EF%BC%89\" target=\"_blank\" rel=\"noopener\">https:\/\/redis.io\/topics\/data-types-intro\uff09<\/a>\u00a0\u4e2d&#8221;Blocking operations on lists&#8221;\u4e00\u8282\u3002<\/p>\n<h3>Hash<\/h3>\n<p>Hash\u5373\u54c8\u5e0c\u8868\uff0cRedis\u7684Hash\u548c\u4f20\u7edf\u7684\u54c8\u5e0c\u8868\u4e00\u6837\uff0c\u662f\u4e00\u79cdfield-value\u578b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u7406\u89e3\u6210\u5c06HashMap\u642c\u5165Redis\u3002<br \/>\nHash\u975e\u5e38\u9002\u5408\u7528\u4e8e\u8868\u73b0\u5bf9\u8c61\u7c7b\u578b\u7684\u6570\u636e\uff0c\u7528Hash\u4e2d\u7684field\u5bf9\u5e94\u5bf9\u8c61\u7684field\u5373\u53ef\u3002<br \/>\nHash\u7684\u4f18\u70b9\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u53ef\u4ee5\u5b9e\u73b0\u4e8c\u5143\u67e5\u627e\uff0c\u5982&#8221;\u67e5\u627eID\u4e3a1000\u7684\u7528\u6237\u7684\u5e74\u9f84&#8221;<\/li>\n<li>\u6bd4\u8d77\u5c06\u6574\u4e2a\u5bf9\u8c61\u5e8f\u5217\u5316\u540e\u4f5c\u4e3aString\u5b58\u50a8\u7684\u65b9\u6cd5\uff0cHash\u80fd\u591f\u6709\u6548\u5730\u51cf\u5c11\u7f51\u7edc\u4f20\u8f93\u7684\u6d88\u8017<\/li>\n<li>\u5f53\u4f7f\u7528Hash\u7ef4\u62a4\u4e00\u4e2a\u96c6\u5408\u65f6\uff0c\u63d0\u4f9b\u4e86\u6bd4List\u6548\u7387\u9ad8\u5f97\u591a\u7684\u968f\u673a\u8bbf\u95ee\u547d\u4ee4<\/li>\n<\/ul>\n<p>\u4e0eHash\u76f8\u5173\u7684\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><strong>HSET<\/strong>\uff1a\u5c06key\u5bf9\u5e94\u7684Hash\u4e2d\u7684field\u8bbe\u7f6e\u4e3avalue\u3002\u5982\u679c\u8be5Hash\u4e0d\u5b58\u5728\uff0c\u4f1a\u81ea\u52a8\u521b\u5efa\u4e00\u4e2a\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>HGET<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aHash\u4e2dfield\u5b57\u6bb5\u7684\u503c\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>HMSET\/HMGET<\/strong>\uff1a\u540cHSET\u548cHGET\uff0c\u53ef\u4ee5\u6279\u91cf\u64cd\u4f5c\u540c\u4e00\u4e2akey\u4e0b\u7684\u591a\u4e2afield\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(N)\uff0cN\u4e3a\u4e00\u6b21\u64cd\u4f5c\u7684field\u6570\u91cf<\/li>\n<li><strong>HSETNX<\/strong>\uff1a\u540cHSET\uff0c\u4f46\u5982field\u5df2\u7ecf\u5b58\u5728\uff0cHSETNX\u4e0d\u4f1a\u8fdb\u884c\u4efb\u4f55\u64cd\u4f5c\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>HEXISTS<\/strong>\uff1a\u5224\u65ad\u6307\u5b9aHash\u4e2dfield\u662f\u5426\u5b58\u5728\uff0c\u5b58\u5728\u8fd4\u56de1\uff0c\u4e0d\u5b58\u5728\u8fd4\u56de0\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>HDEL<\/strong>\uff1a\u5220\u9664\u6307\u5b9aHash\u4e2d\u7684field\uff081\u4e2a\u6216\u591a\u4e2a\uff09\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(N)\uff0cN\u4e3a\u64cd\u4f5c\u7684field\u6570\u91cf<\/li>\n<li><strong>HINCRBY<\/strong>\uff1a\u540cINCRBY\u547d\u4ee4\uff0c\u5bf9\u6307\u5b9aHash\u4e2d\u7684\u4e00\u4e2afield\u8fdb\u884cINCRBY\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<\/ul>\n<p>\u5e94\u8c28\u614e\u4f7f\u7528\u7684Hash\u76f8\u5173\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><strong>HGETALL<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aHash\u4e2d\u6240\u6709\u7684field-value\u5bf9\u3002\u8fd4\u56de\u7ed3\u679c\u4e3a\u6570\u7ec4\uff0c\u6570\u7ec4\u4e2dfield\u548cvalue\u4ea4\u66ff\u51fa\u73b0\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(N)<\/li>\n<li><strong>HKEYS\/HVALS<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aHash\u4e2d\u6240\u6709\u7684field\/value\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)<\/li>\n<\/ul>\n<p>\u4e0a\u8ff0\u4e09\u4e2a\u547d\u4ee4\u90fd\u4f1a\u5bf9Hash\u8fdb\u884c\u5b8c\u6574\u904d\u5386\uff0cHash\u4e2d\u7684field\u6570\u91cf\u4e0e\u547d\u4ee4\u7684\u8017\u65f6\u7ebf\u6027\u76f8\u5173\uff0c\u5bf9\u4e8e\u5c3a\u5bf8\u4e0d\u53ef\u9884\u77e5\u7684Hash\uff0c\u5e94\u4e25\u683c\u907f\u514d\u4f7f\u7528\u4e0a\u9762\u4e09\u4e2a\u547d\u4ee4\uff0c\u800c\u6539\u4e3a\u4f7f\u7528HSCAN\u547d\u4ee4\u8fdb\u884c\u6e38\u6807\u5f0f\u7684\u904d\u5386\uff0c\u5177\u4f53\u8bf7\u89c1\u00a0<a href=\"https:\/\/redis.io\/commands\/scan\" target=\"_blank\" rel=\"noopener\">https:\/\/redis.io\/commands\/scan<\/a><\/p>\n<h3>Set<\/h3>\n<p>Redis Set\u662f\u65e0\u5e8f\u7684\uff0c\u4e0d\u53ef\u91cd\u590d\u7684String\u96c6\u5408\u3002<\/p>\n<p>\u4e0eSet\u76f8\u5173\u7684\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><strong>SADD<\/strong>\uff1a\u5411\u6307\u5b9aSet\u4e2d\u6dfb\u52a01\u4e2a\u6216\u591a\u4e2amember\uff0c\u5982\u679c\u6307\u5b9aSet\u4e0d\u5b58\u5728\uff0c\u4f1a\u81ea\u52a8\u521b\u5efa\u4e00\u4e2a\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(N)\uff0cN\u4e3a\u6dfb\u52a0\u7684member\u4e2a\u6570<\/li>\n<li><strong>SREM<\/strong>\uff1a\u4ece\u6307\u5b9aSet\u4e2d\u79fb\u96641\u4e2a\u6216\u591a\u4e2amember\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)\uff0cN\u4e3a\u79fb\u9664\u7684member\u4e2a\u6570<\/li>\n<li><strong>SRANDMEMBER<\/strong>\uff1a\u4ece\u6307\u5b9aSet\u4e2d\u968f\u673a\u8fd4\u56de1\u4e2a\u6216\u591a\u4e2amember\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)\uff0cN\u4e3a\u8fd4\u56de\u7684member\u4e2a\u6570<\/li>\n<li><strong>SPOP<\/strong>\uff1a\u4ece\u6307\u5b9aSet\u4e2d\u968f\u673a\u79fb\u9664\u5e76\u8fd4\u56decount\u4e2amember\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)\uff0cN\u4e3a\u79fb\u9664\u7684member\u4e2a\u6570<\/li>\n<li><strong>SCARD<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aSet\u4e2d\u7684member\u4e2a\u6570\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>SISMEMBER<\/strong>\uff1a\u5224\u65ad\u6307\u5b9a\u7684value\u662f\u5426\u5b58\u5728\u4e8e\u6307\u5b9aSet\u4e2d\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>SMOVE<\/strong>\uff1a\u5c06\u6307\u5b9amember\u4ece\u4e00\u4e2aSet\u79fb\u81f3\u53e6\u4e00\u4e2aSet<\/li>\n<\/ul>\n<p>\u614e\u7528\u7684Set\u76f8\u5173\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><strong>SMEMBERS<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aHash\u4e2d\u6240\u6709\u7684member\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)<\/li>\n<li><strong>SUNION\/SUNIONSTORE<\/strong>\uff1a\u8ba1\u7b97\u591a\u4e2aSet\u7684\u5e76\u96c6\u5e76\u8fd4\u56de\/\u5b58\u50a8\u81f3\u53e6\u4e00\u4e2aSet\u4e2d\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)\uff0cN\u4e3a\u53c2\u4e0e\u8ba1\u7b97\u7684\u6240\u6709\u96c6\u5408\u7684\u603bmember\u6570<\/li>\n<li><strong>SINTER\/SINTERSTORE<\/strong>\uff1a\u8ba1\u7b97\u591a\u4e2aSet\u7684\u4ea4\u96c6\u5e76\u8fd4\u56de\/\u5b58\u50a8\u81f3\u53e6\u4e00\u4e2aSet\u4e2d\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)\uff0cN\u4e3a\u53c2\u4e0e\u8ba1\u7b97\u7684\u6240\u6709\u96c6\u5408\u7684\u603bmember\u6570<\/li>\n<li><strong>SDIFF\/SDIFFSTORE<\/strong>\uff1a\u8ba1\u7b971\u4e2aSet\u4e0e1\u6216\u591a\u4e2aSet\u7684\u5dee\u96c6\u5e76\u8fd4\u56de\/\u5b58\u50a8\u81f3\u53e6\u4e00\u4e2aSet\u4e2d\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)\uff0cN\u4e3a\u53c2\u4e0e\u8ba1\u7b97\u7684\u6240\u6709\u96c6\u5408\u7684\u603bmember\u6570<\/li>\n<\/ul>\n<p>\u4e0a\u8ff0\u51e0\u4e2a\u547d\u4ee4\u6d89\u53ca\u7684\u8ba1\u7b97\u91cf\u5927\uff0c\u5e94\u8c28\u614e\u4f7f\u7528\uff0c\u7279\u522b\u662f\u5728\u53c2\u4e0e\u8ba1\u7b97\u7684Set\u5c3a\u5bf8\u4e0d\u53ef\u77e5\u7684\u60c5\u51b5\u4e0b\uff0c\u5e94\u4e25\u683c\u907f\u514d\u4f7f\u7528\u3002\u53ef\u4ee5\u8003\u8651\u901a\u8fc7SSCAN\u547d\u4ee4\u904d\u5386\u83b7\u53d6\u76f8\u5173Set\u7684\u5168\u90e8member\uff08\u5177\u4f53\u8bf7\u89c1\u00a0<a href=\"https:\/\/redis.io\/commands\/scan\" target=\"_blank\" rel=\"noopener\">https:\/\/redis.io\/commands\/scan<\/a>\u00a0\uff09\uff0c\u5982\u679c\u9700\u8981\u505a\u5e76\u96c6\/\u4ea4\u96c6\/\u5dee\u96c6\u8ba1\u7b97\uff0c\u53ef\u4ee5\u5728\u5ba2\u6237\u7aef\u8fdb\u884c\uff0c\u6216\u5728\u4e0d\u670d\u52a1\u5b9e\u65f6\u67e5\u8be2\u8bf7\u6c42\u7684Slave\u4e0a\u8fdb\u884c\u3002<\/p>\n<h3>Sorted Set<\/h3>\n<p>Redis Sorted Set\u662f\u6709\u5e8f\u7684\u3001\u4e0d\u53ef\u91cd\u590d\u7684String\u96c6\u5408\u3002Sorted Set\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u9700\u8981\u6307\u6d3e\u4e00\u4e2a\u5206\u6570(score)\uff0cSorted Set\u4f1a\u6839\u636escore\u5bf9\u5143\u7d20\u8fdb\u884c\u5347\u5e8f\u6392\u5e8f\u3002\u5982\u679c\u591a\u4e2amember\u62e5\u6709\u76f8\u540c\u7684score\uff0c\u5219\u4ee5\u5b57\u5178\u5e8f\u8fdb\u884c\u5347\u5e8f\u6392\u5e8f\u3002<\/p>\n<p>Sorted Set\u975e\u5e38\u9002\u5408\u7528\u4e8e\u5b9e\u73b0\u6392\u540d\u3002<\/p>\n<p>Sorted Set\u7684\u4e3b\u8981\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><strong>ZADD<\/strong>\uff1a\u5411\u6307\u5b9aSorted Set\u4e2d\u6dfb\u52a01\u4e2a\u6216\u591a\u4e2amember\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(Mlog(N))\uff0cM\u4e3a\u6dfb\u52a0\u7684member\u6570\u91cf\uff0cN\u4e3aSorted Set\u4e2d\u7684member\u6570\u91cf<\/li>\n<li><strong>ZREM<\/strong>\uff1a\u4ece\u6307\u5b9aSorted Set\u4e2d\u5220\u96641\u4e2a\u6216\u591a\u4e2amember\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(Mlog(N))\uff0cM\u4e3a\u5220\u9664\u7684member\u6570\u91cf\uff0cN\u4e3aSorted Set\u4e2d\u7684member\u6570\u91cf<\/li>\n<li><strong>ZCOUNT<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aSorted Set\u4e2d\u6307\u5b9ascore\u8303\u56f4\u5185\u7684member\u6570\u91cf\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(log(N))<\/li>\n<li><strong>ZCARD<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aSorted Set\u4e2d\u7684member\u6570\u91cf\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>ZSCORE<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aSorted Set\u4e2d\u6307\u5b9amember\u7684score\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>ZRANK\/ZREVRANK<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9amember\u5728Sorted Set\u4e2d\u7684\u6392\u540d\uff0cZRANK\u8fd4\u56de\u6309\u5347\u5e8f\u6392\u5e8f\u7684\u6392\u540d\uff0cZREVRANK\u5219\u8fd4\u56de\u6309\u964d\u5e8f\u6392\u5e8f\u7684\u6392\u540d\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(log(N))<\/li>\n<li><strong>ZINCRBY<\/strong>\uff1a\u540cINCRBY\uff0c\u5bf9\u6307\u5b9aSorted Set\u4e2d\u7684\u6307\u5b9amember\u7684score\u8fdb\u884c\u81ea\u589e\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(log(N))<\/li>\n<\/ul>\n<p>\u614e\u7528\u7684Sorted Set\u76f8\u5173\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><strong>ZRANGE\/ZREVRANGE<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aSorted Set\u4e2d\u6307\u5b9a\u6392\u540d\u8303\u56f4\u5185\u7684\u6240\u6709member\uff0cZRANGE\u4e3a\u6309score\u5347\u5e8f\u6392\u5e8f\uff0cZREVRANGE\u4e3a\u6309score\u964d\u5e8f\u6392\u5e8f\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(log(N)+M)\uff0cM\u4e3a\u672c\u6b21\u8fd4\u56de\u7684member\u6570<\/li>\n<li><strong>ZRANGEBYSCORE\/ZREVRANGEBYSCORE<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9aSorted Set\u4e2d\u6307\u5b9ascore\u8303\u56f4\u5185\u7684\u6240\u6709member\uff0c\u8fd4\u56de\u7ed3\u679c\u4ee5\u5347\u5e8f\/\u964d\u5e8f\u6392\u5e8f\uff0cmin\u548cmax\u53ef\u4ee5\u6307\u5b9a\u4e3a-inf\u548c+inf\uff0c\u4ee3\u8868\u8fd4\u56de\u6240\u6709\u7684member\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(log(N)+M)<\/li>\n<li><strong>ZREMRANGEBYRANK\/ZREMRANGEBYSCORE<\/strong>\uff1a\u79fb\u9664Sorted Set\u4e2d\u6307\u5b9a\u6392\u540d\u8303\u56f4\/\u6307\u5b9ascore\u8303\u56f4\u5185\u7684\u6240\u6709member\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(log(N)+M)<\/li>\n<\/ul>\n<p>\u4e0a\u8ff0\u51e0\u4e2a\u547d\u4ee4\uff0c\u5e94\u5c3d\u91cf\u907f\u514d\u4f20\u9012[0 -1]\u6216[-inf +inf]\u8fd9\u6837\u7684\u53c2\u6570\uff0c\u6765\u5bf9Sorted Set\u505a\u4e00\u6b21\u6027\u7684\u5b8c\u6574\u904d\u5386\uff0c\u7279\u522b\u662f\u5728Sorted Set\u7684\u5c3a\u5bf8\u4e0d\u53ef\u9884\u77e5\u7684\u60c5\u51b5\u4e0b\u3002\u53ef\u4ee5\u901a\u8fc7ZSCAN\u547d\u4ee4\u6765\u8fdb\u884c\u6e38\u6807\u5f0f\u7684\u904d\u5386\uff08\u5177\u4f53\u8bf7\u89c1\u00a0<a href=\"https:\/\/redis.io\/commands\/scan\" target=\"_blank\" rel=\"noopener\">https:\/\/redis.io\/commands\/scan<\/a>\u00a0\uff09\uff0c\u6216\u901a\u8fc7LIMIT\u53c2\u6570\u6765\u9650\u5236\u8fd4\u56demember\u7684\u6570\u91cf\uff08\u9002\u7528\u4e8eZRANGEBYSCORE\u548cZREVRANGEBYSCORE\u547d\u4ee4\uff09\uff0c\u4ee5\u5b9e\u73b0\u6e38\u6807\u5f0f\u7684\u904d\u5386\u3002<\/p>\n<h3>Bitmap\u548cHyperLogLog<\/h3>\n<p>Redis\u7684\u8fd9\u4e24\u79cd\u6570\u636e\u7ed3\u6784\u76f8\u8f83\u4e4b\u524d\u7684\u5e76\u4e0d\u5e38\u7528\uff0c\u5728\u672c\u6587\u4e2d\u53ea\u505a\u7b80\u8981\u4ecb\u7ecd\uff0c\u5982\u60f3\u8981\u8be6\u7ec6\u4e86\u89e3\u8fd9\u4e24\u79cd\u6570\u636e\u7ed3\u6784\u4e0e\u5176\u76f8\u5173\u7684\u547d\u4ee4\uff0c\u8bf7\u53c2\u8003\u5b98\u65b9\u6587\u6863<a href=\"https:\/\/redis.io\/topics\/data-types-intro\" target=\"_blank\" rel=\"noopener\">https:\/\/redis.io\/topics\/data-types-intro<\/a>\u00a0\u4e2d\u7684\u76f8\u5173\u7ae0\u8282<\/p>\n<p>Bitmap\u5728Redis\u4e2d\u4e0d\u662f\u4e00\u79cd\u5b9e\u9645\u7684\u6570\u636e\u7c7b\u578b\uff0c\u800c\u662f\u4e00\u79cd\u5c06String\u4f5c\u4e3aBitmap\u4f7f\u7528\u7684\u65b9\u6cd5\u3002\u53ef\u4ee5\u7406\u89e3\u4e3a\u5c06String\u8f6c\u6362\u4e3abit\u6570\u7ec4\u3002\u4f7f\u7528Bitmap\u6765\u5b58\u50a8true\/false\u7c7b\u578b\u7684\u7b80\u5355\u6570\u636e\u6781\u4e3a\u8282\u7701\u7a7a\u95f4\u3002<\/p>\n<p>HyperLogLogs\u662f\u4e00\u79cd\u4e3b\u8981\u7528\u4e8e\u6570\u91cf\u7edf\u8ba1\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u548cSet\u7c7b\u4f3c\uff0c\u7ef4\u62a4\u4e00\u4e2a\u4e0d\u53ef\u91cd\u590d\u7684String\u96c6\u5408\uff0c\u4f46\u662fHyperLogLogs\u5e76\u4e0d\u7ef4\u62a4\u5177\u4f53\u7684member\u5185\u5bb9\uff0c\u53ea\u7ef4\u62a4member\u7684\u4e2a\u6570\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cHyperLogLogs\u53ea\u80fd\u7528\u4e8e\u8ba1\u7b97\u4e00\u4e2a\u96c6\u5408\u4e2d\u4e0d\u91cd\u590d\u7684\u5143\u7d20\u6570\u91cf\uff0c\u6240\u4ee5\u5b83\u6bd4Set\u8981\u8282\u7701\u5f88\u591a\u5185\u5b58\u7a7a\u95f4\u3002<\/p>\n<h3>\u5176\u4ed6\u5e38\u7528\u547d\u4ee4<\/h3>\n<ul>\n<li><strong>EXISTS<\/strong>\uff1a\u5224\u65ad\u6307\u5b9a\u7684key\u662f\u5426\u5b58\u5728\uff0c\u8fd4\u56de1\u4ee3\u8868\u5b58\u5728\uff0c0\u4ee3\u8868\u4e0d\u5b58\u5728\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>DEL<\/strong>\uff1a\u5220\u9664\u6307\u5b9a\u7684key\u53ca\u5176\u5bf9\u5e94\u7684value\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(N)\uff0cN\u4e3a\u5220\u9664\u7684key\u6570\u91cf<\/li>\n<li><strong>EXPIRE\/PEXPIRE<\/strong>\uff1a\u4e3a\u4e00\u4e2akey\u8bbe\u7f6e\u6709\u6548\u671f\uff0c\u5355\u4f4d\u4e3a\u79d2\u6216\u6beb\u79d2\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>TTL\/PTTL<\/strong>\uff1a\u8fd4\u56de\u4e00\u4e2akey\u5269\u4f59\u7684\u6709\u6548\u65f6\u95f4\uff0c\u5355\u4f4d\u4e3a\u79d2\u6216\u6beb\u79d2\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>RENAME\/RENAMENX<\/strong>\uff1a\u5c06key\u91cd\u547d\u540d\u4e3anewkey\u3002\u4f7f\u7528RENAME\u65f6\uff0c\u5982\u679cnewkey\u5df2\u7ecf\u5b58\u5728\uff0c\u5176\u503c\u4f1a\u88ab\u8986\u76d6\uff1b\u4f7f\u7528RENAMENX\u65f6\uff0c\u5982\u679cnewkey\u5df2\u7ecf\u5b58\u5728\uff0c\u5219\u4e0d\u4f1a\u8fdb\u884c\u4efb\u4f55\u64cd\u4f5c\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>TYPE<\/strong>\uff1a\u8fd4\u56de\u6307\u5b9akey\u7684\u7c7b\u578b\uff0cstring, list, set, zset, hash\u3002\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>CONFIG GET<\/strong>\uff1a\u83b7\u5f97Redis\u67d0\u914d\u7f6e\u9879\u7684\u5f53\u524d\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528*\u901a\u914d\u7b26\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>CONFIG SET<\/strong>\uff1a\u4e3aRedis\u67d0\u4e2a\u914d\u7f6e\u9879\u8bbe\u7f6e\u65b0\u503c\uff0c\u65f6\u95f4\u590d\u6742\u5ea6O(1)<\/li>\n<li><strong>CONFIG REWRITE<\/strong>\uff1a\u8ba9Redis\u91cd\u65b0\u52a0\u8f7dredis.conf\u4e2d\u7684\u914d\u7f6e<\/li>\n<\/ul>\n<h2>\u6570\u636e\u6301\u4e45\u5316<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u5c06\u6570\u636e\u5b9a\u671f\u81ea\u52a8\u6301\u4e45\u5316\u81f3\u786c\u76d8\u7684\u80fd\u529b\uff0c\u5305\u62ecRDB\u548cAOF\u4e24\u79cd\u65b9\u6848\uff0c\u4e24\u79cd\u65b9\u6848\u5206\u522b\u6709\u5176\u957f\u5904\u548c\u77ed\u677f\uff0c\u53ef\u4ee5\u914d\u5408\u8d77\u6765\u540c\u65f6\u8fd0\u884c\uff0c\u786e\u4fdd\u6570\u636e\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n<h3>\u5fc5\u987b\u4f7f\u7528\u6570\u636e\u6301\u4e45\u5316\u5417\uff1f<\/h3>\n<p>Redis\u7684\u6570\u636e\u6301\u4e45\u5316\u673a\u5236\u662f\u53ef\u4ee5\u5173\u95ed\u7684\u3002\u5982\u679c\u4f60\u53ea\u628aRedis\u4f5c\u4e3a\u7f13\u5b58\u670d\u52a1\u4f7f\u7528\uff0cRedis\u4e2d\u5b58\u50a8\u7684\u6240\u6709\u6570\u636e\u90fd\u4e0d\u662f\u8be5\u6570\u636e\u7684\u4e3b\u4f53\u800c\u4ec5\u4ec5\u662f\u540c\u6b65\u8fc7\u6765\u7684\u5907\u4efd\uff0c\u90a3\u4e48\u53ef\u4ee5\u5173\u95edRedis\u7684\u6570\u636e\u6301\u4e45\u5316\u673a\u5236\u3002<br \/>\n\u4f46\u901a\u5e38\u6765\u8bf4\uff0c\u4ecd\u7136\u5efa\u8bae\u81f3\u5c11\u5f00\u542fRDB\u65b9\u5f0f\u7684\u6570\u636e\u6301\u4e45\u5316\uff0c\u56e0\u4e3a\uff1a<\/p>\n<ul>\n<li>RDB\u65b9\u5f0f\u7684\u6301\u4e45\u5316\u51e0\u4e4e\u4e0d\u635f\u8017Redis\u672c\u8eab\u7684\u6027\u80fd\uff0c\u5728\u8fdb\u884cRDB\u6301\u4e45\u5316\u65f6\uff0cRedis\u4e3b\u8fdb\u7a0b\u552f\u4e00\u9700\u8981\u505a\u7684\u4e8b\u60c5\u5c31\u662ffork\u51fa\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u6240\u6709\u6301\u4e45\u5316\u5de5\u4f5c\u90fd\u7531\u5b50\u8fdb\u7a0b\u5b8c\u6210<\/li>\n<li>Redis\u65e0\u8bba\u56e0\u4e3a\u4ec0\u4e48\u539f\u56e0crash\u6389\u4e4b\u540e\uff0c\u91cd\u542f\u65f6\u80fd\u591f\u81ea\u52a8\u6062\u590d\u5230\u4e0a\u4e00\u6b21RDB\u5feb\u7167\u4e2d\u8bb0\u5f55\u7684\u6570\u636e\u3002\u8fd9\u7701\u53bb\u4e86\u624b\u5de5\u4ece\u5176\u4ed6\u6570\u636e\u6e90\uff08\u5982DB\uff09\u540c\u6b65\u6570\u636e\u7684\u8fc7\u7a0b\uff0c\u800c\u4e14\u8981\u6bd4\u5176\u4ed6\u4efb\u4f55\u7684\u6570\u636e\u6062\u590d\u65b9\u5f0f\u90fd\u8981\u5feb<\/li>\n<li>\u73b0\u5728\u786c\u76d8\u90a3\u4e48\u5927\uff0c\u771f\u7684\u4e0d\u7f3a\u90a3\u4e00\u70b9\u5730\u65b9<\/li>\n<\/ul>\n<h3>RDB<\/h3>\n<p>\u91c7\u7528RDB\u6301\u4e45\u65b9\u5f0f\uff0cRedis\u4f1a\u5b9a\u671f\u4fdd\u5b58\u6570\u636e\u5feb\u7167\u81f3\u4e00\u4e2arbd\u6587\u4ef6\u4e2d\uff0c\u5e76\u5728\u542f\u52a8\u65f6\u81ea\u52a8\u52a0\u8f7drdb\u6587\u4ef6\uff0c\u6062\u590d\u4e4b\u524d\u4fdd\u5b58\u7684\u6570\u636e\u3002\u53ef\u4ee5\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u914d\u7f6eRedis\u8fdb\u884c\u5feb\u7167\u4fdd\u5b58\u7684\u65f6\u673a\uff1a<\/p>\n<pre class=\"hljs accesslog\"><code class=\"accesslog hljs css\"><span class=\"hljs-selector-tag\">save<\/span> <span class=\"hljs-string\"><span class=\"hljs-selector-attr\">[seconds]<\/span> <span class=\"hljs-selector-attr\">[changes]<\/span><\/span><\/code><\/pre>\n<p>\u610f\u4e3a\u5728[seconds]\u79d2\u5185\u5982\u679c\u53d1\u751f\u4e86[changes]\u6b21\u6570\u636e\u4fee\u6539\uff0c\u5219\u8fdb\u884c\u4e00\u6b21RDB\u5feb\u7167\u4fdd\u5b58\uff0c\u4f8b\u5982<\/p>\n<pre class=\"hljs lsl\"><code class=\"lsl hljs apache\"><span class=\"hljs-attribute\">save<\/span> <span class=\"hljs-number\">60 100<\/span><\/code><\/pre>\n<p>\u4f1a\u8ba9Redis\u6bcf60\u79d2\u68c0\u67e5\u4e00\u6b21\u6570\u636e\u53d8\u66f4\u60c5\u51b5\uff0c\u5982\u679c\u53d1\u751f\u4e86100\u6b21\u6216\u4ee5\u4e0a\u7684\u6570\u636e\u53d8\u66f4\uff0c\u5219\u8fdb\u884cRDB\u5feb\u7167\u4fdd\u5b58\u3002<br \/>\n\u53ef\u4ee5\u914d\u7f6e\u591a\u6761save\u6307\u4ee4\uff0c\u8ba9Redis\u6267\u884c\u591a\u7ea7\u7684\u5feb\u7167\u4fdd\u5b58\u7b56\u7565\u3002<br \/>\nRedis\u9ed8\u8ba4\u5f00\u542fRDB\u5feb\u7167\uff0c\u9ed8\u8ba4\u7684RDB\u7b56\u7565\u5982\u4e0b\uff1a<\/p>\n<pre class=\"hljs lsl\"><code class=\"lsl hljs apache\"><span class=\"hljs-attribute\">save<\/span> <span class=\"hljs-number\">900 1\r\n<span class=\"hljs-attribute\">save<\/span> 300 10\r\n<span class=\"hljs-attribute\">save<\/span> 60 10000<\/span><\/code><\/pre>\n<p>\u4e5f\u53ef\u4ee5\u901a\u8fc7<strong>BGSAVE<\/strong>\u547d\u4ee4\u624b\u5de5\u89e6\u53d1RDB\u5feb\u7167\u4fdd\u5b58\u3002<\/p>\n<p><strong>RDB\u7684\u4f18\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u5bf9\u6027\u80fd\u5f71\u54cd\u6700\u5c0f\u3002\u5982\u524d\u6587\u6240\u8ff0\uff0cRedis\u5728\u4fdd\u5b58RDB\u5feb\u7167\u65f6\u4f1afork\u51fa\u5b50\u8fdb\u7a0b\u8fdb\u884c\uff0c\u51e0\u4e4e\u4e0d\u5f71\u54cdRedis\u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u6548\u7387\u3002<\/li>\n<li>\u6bcf\u6b21\u5feb\u7167\u4f1a\u751f\u6210\u4e00\u4e2a\u5b8c\u6574\u7684\u6570\u636e\u5feb\u7167\u6587\u4ef6\uff0c\u6240\u4ee5\u53ef\u4ee5\u8f85\u4ee5\u5176\u4ed6\u624b\u6bb5\u4fdd\u5b58\u591a\u4e2a\u65f6\u95f4\u70b9\u7684\u5feb\u7167\uff08\u4f8b\u5982\u628a\u6bcf\u59290\u70b9\u7684\u5feb\u7167\u5907\u4efd\u81f3\u5176\u4ed6\u5b58\u50a8\u5a92\u4ecb\u4e2d\uff09\uff0c\u4f5c\u4e3a\u975e\u5e38\u53ef\u9760\u7684\u707e\u96be\u6062\u590d\u624b\u6bb5\u3002<\/li>\n<li>\u4f7f\u7528RDB\u6587\u4ef6\u8fdb\u884c\u6570\u636e\u6062\u590d\u6bd4\u4f7f\u7528AOF\u8981\u5feb\u5f88\u591a\u3002<\/li>\n<\/ul>\n<p><strong>RDB\u7684\u7f3a\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u5feb\u7167\u662f\u5b9a\u671f\u751f\u6210\u7684\uff0c\u6240\u4ee5\u5728Redis crash\u65f6\u6216\u591a\u6216\u5c11\u4f1a\u4e22\u5931\u4e00\u90e8\u5206\u6570\u636e\u3002<\/li>\n<li>\u5982\u679c\u6570\u636e\u96c6\u975e\u5e38\u5927\u4e14CPU\u4e0d\u591f\u5f3a\uff08\u6bd4\u5982\u5355\u6838CPU\uff09\uff0cRedis\u5728fork\u5b50\u8fdb\u7a0b\u65f6\u53ef\u80fd\u4f1a\u6d88\u8017\u76f8\u5bf9\u8f83\u957f\u7684\u65f6\u95f4\uff08\u957f\u81f31\u79d2\uff09\uff0c\u5f71\u54cd\u8fd9\u671f\u95f4\u7684\u5ba2\u6237\u7aef\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<h3>AOF<\/h3>\n<p>\u91c7\u7528AOF\u6301\u4e45\u65b9\u5f0f\u65f6\uff0cRedis\u4f1a\u628a\u6bcf\u4e00\u4e2a\u5199\u8bf7\u6c42\u90fd\u8bb0\u5f55\u5728\u4e00\u4e2a\u65e5\u5fd7\u6587\u4ef6\u91cc\u3002\u5728Redis\u91cd\u542f\u65f6\uff0c\u4f1a\u628aAOF\u6587\u4ef6\u4e2d\u8bb0\u5f55\u7684\u6240\u6709\u5199\u64cd\u4f5c\u987a\u5e8f\u6267\u884c\u4e00\u904d\uff0c\u786e\u4fdd\u6570\u636e\u6062\u590d\u5230\u6700\u65b0\u3002<\/p>\n<p>AOF\u9ed8\u8ba4\u662f\u5173\u95ed\u7684\uff0c\u5982\u8981\u5f00\u542f\uff0c\u8fdb\u884c\u5982\u4e0b\u914d\u7f6e\uff1a<\/p>\n<pre class=\"hljs nginx\"><code class=\"nginx hljs\"><span class=\"hljs-attribute\">appendonly <span class=\"hljs-literal\">yes<\/span><\/span><\/code><\/pre>\n<p>AOF\u63d0\u4f9b\u4e86\u4e09\u79cdfsync\u914d\u7f6e\uff0calways\/everysec\/no\uff0c\u901a\u8fc7\u914d\u7f6e\u9879[appendfsync]\u6307\u5b9a\uff1a<\/p>\n<ul>\n<li>appendfsync no\uff1a\u4e0d\u8fdb\u884cfsync\uff0c\u5c06flush\u6587\u4ef6\u7684\u65f6\u673a\u4ea4\u7ed9OS\u51b3\u5b9a\uff0c\u901f\u5ea6\u6700\u5feb<\/li>\n<li>appendfsync always\uff1a\u6bcf\u5199\u5165\u4e00\u6761\u65e5\u5fd7\u5c31\u8fdb\u884c\u4e00\u6b21fsync\u64cd\u4f5c\uff0c\u6570\u636e\u5b89\u5168\u6027\u6700\u9ad8\uff0c\u4f46\u901f\u5ea6\u6700\u6162<\/li>\n<li>appendfsync everysec\uff1a\u6298\u4e2d\u7684\u505a\u6cd5\uff0c\u4ea4\u7531\u540e\u53f0\u7ebf\u7a0b\u6bcf\u79d2fsync\u4e00\u6b21<\/li>\n<\/ul>\n<p>\u968f\u7740AOF\u4e0d\u65ad\u5730\u8bb0\u5f55\u5199\u64cd\u4f5c\u65e5\u5fd7\uff0c\u5fc5\u5b9a\u4f1a\u51fa\u73b0\u4e00\u4e9b\u65e0\u7528\u7684\u65e5\u5fd7\uff0c\u4f8b\u5982\u67d0\u4e2a\u65f6\u95f4\u70b9\u6267\u884c\u4e86\u547d\u4ee4<strong>SET key1 &#8220;abc&#8221;<\/strong>\uff0c\u5728\u4e4b\u540e\u67d0\u4e2a\u65f6\u95f4\u70b9\u53c8\u6267\u884c\u4e86<strong>SET key1 &#8220;bcd&#8221;<\/strong>\uff0c\u90a3\u4e48\u7b2c\u4e00\u6761\u547d\u4ee4\u5f88\u663e\u7136\u662f\u6ca1\u6709\u7528\u7684\u3002\u5927\u91cf\u7684\u65e0\u7528\u65e5\u5fd7\u4f1a\u8ba9AOF\u6587\u4ef6\u8fc7\u5927\uff0c\u4e5f\u4f1a\u8ba9\u6570\u636e\u6062\u590d\u7684\u65f6\u95f4\u8fc7\u957f\u3002<br \/>\n\u6240\u4ee5Redis\u63d0\u4f9b\u4e86AOF rewrite\u529f\u80fd\uff0c\u53ef\u4ee5\u91cd\u5199AOF\u6587\u4ef6\uff0c\u53ea\u4fdd\u7559\u80fd\u591f\u628a\u6570\u636e\u6062\u590d\u5230\u6700\u65b0\u72b6\u6001\u7684\u6700\u5c0f\u5199\u64cd\u4f5c\u96c6\u3002<br \/>\nAOF rewrite\u53ef\u4ee5\u901a\u8fc7<strong>BGREWRITEAOF<\/strong>\u547d\u4ee4\u89e6\u53d1\uff0c\u4e5f\u53ef\u4ee5\u914d\u7f6eRedis\u5b9a\u671f\u81ea\u52a8\u8fdb\u884c\uff1a<\/p>\n<pre class=\"hljs arduino\"><code class=\"arduino hljs apache\"><span class=\"hljs-keyword\"><span class=\"hljs-attribute\">auto<\/span>-aof-rewrite-percentage <span class=\"hljs-number\">100\r\n<span class=\"hljs-attribute\">auto<\/span>-aof-rewrite-<span class=\"hljs-built_in\">min-size 64mb<\/span><\/span><\/span><\/code><\/pre>\n<p>\u4e0a\u9762\u4e24\u884c\u914d\u7f6e\u7684\u542b\u4e49\u662f\uff0cRedis\u5728\u6bcf\u6b21AOF rewrite\u65f6\uff0c\u4f1a\u8bb0\u5f55\u5b8c\u6210rewrite\u540e\u7684AOF\u65e5\u5fd7\u5927\u5c0f\uff0c\u5f53AOF\u65e5\u5fd7\u5927\u5c0f\u5728\u8be5\u57fa\u7840\u4e0a\u589e\u957f\u4e86100%\u540e\uff0c\u81ea\u52a8\u8fdb\u884cAOF rewrite\u3002\u540c\u65f6\u5982\u679c\u589e\u957f\u7684\u5927\u5c0f\u6ca1\u6709\u8fbe\u523064mb\uff0c\u5219\u4e0d\u4f1a\u8fdb\u884crewrite\u3002<\/p>\n<p><strong>AOF\u7684\u4f18\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u6700\u5b89\u5168\uff0c\u5728\u542f\u7528appendfsync always\u65f6\uff0c\u4efb\u4f55\u5df2\u5199\u5165\u7684\u6570\u636e\u90fd\u4e0d\u4f1a\u4e22\u5931\uff0c\u4f7f\u7528\u5728\u542f\u7528appendfsync everysec\u4e5f\u81f3\u591a\u53ea\u4f1a\u4e22\u59311\u79d2\u7684\u6570\u636e\u3002<\/li>\n<li>AOF\u6587\u4ef6\u5728\u53d1\u751f\u65ad\u7535\u7b49\u95ee\u9898\u65f6\u4e5f\u4e0d\u4f1a\u635f\u574f\uff0c\u5373\u4f7f\u51fa\u73b0\u4e86\u67d0\u6761\u65e5\u5fd7\u53ea\u5199\u5165\u4e86\u4e00\u534a\u7684\u60c5\u51b5\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528redis-check-aof\u5de5\u5177\u8f7b\u677e\u4fee\u590d\u3002<\/li>\n<li>AOF\u6587\u4ef6\u6613\u8bfb\uff0c\u53ef\u4fee\u6539\uff0c\u5728\u8fdb\u884c\u4e86\u67d0\u4e9b\u9519\u8bef\u7684\u6570\u636e\u6e05\u9664\u64cd\u4f5c\u540e\uff0c\u53ea\u8981AOF\u6587\u4ef6\u6ca1\u6709rewrite\uff0c\u5c31\u53ef\u4ee5\u628aAOF\u6587\u4ef6\u5907\u4efd\u51fa\u6765\uff0c\u628a\u9519\u8bef\u7684\u547d\u4ee4\u5220\u9664\uff0c\u7136\u540e\u6062\u590d\u6570\u636e\u3002<\/li>\n<\/ul>\n<p><strong>AOF\u7684\u7f3a\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>AOF\u6587\u4ef6\u901a\u5e38\u6bd4RDB\u6587\u4ef6\u66f4\u5927<\/li>\n<li>\u6027\u80fd\u6d88\u8017\u6bd4RDB\u9ad8<\/li>\n<li>\u6570\u636e\u6062\u590d\u901f\u5ea6\u6bd4RDB\u6162<\/li>\n<\/ul>\n<h2>\u5185\u5b58\u7ba1\u7406\u4e0e\u6570\u636e\u6dd8\u6c70\u673a\u5236<\/h2>\n<h3>\u6700\u5927\u5185\u5b58\u8bbe\u7f6e<\/h3>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u572832\u4f4dOS\u4e2d\uff0cRedis\u6700\u5927\u4f7f\u75283GB\u7684\u5185\u5b58\uff0c\u572864\u4f4dOS\u4e2d\u5219\u6ca1\u6709\u9650\u5236\u3002<\/p>\n<p>\u5728\u4f7f\u7528Redis\u65f6\uff0c\u5e94\u8be5\u5bf9\u6570\u636e\u5360\u7528\u7684\u6700\u5927\u7a7a\u95f4\u6709\u4e00\u4e2a\u57fa\u672c\u51c6\u786e\u7684\u9884\u4f30\uff0c\u5e76\u4e3aRedis\u8bbe\u5b9a\u6700\u5927\u4f7f\u7528\u7684\u5185\u5b58\u3002\u5426\u5219\u572864\u4f4dOS\u4e2dRedis\u4f1a\u65e0\u9650\u5236\u5730\u5360\u7528\u5185\u5b58\uff08\u5f53\u7269\u7406\u5185\u5b58\u88ab\u5360\u6ee1\u540e\u4f1a\u4f7f\u7528swap\u7a7a\u95f4\uff09\uff0c\u5bb9\u6613\u5f15\u53d1\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\u3002<\/p>\n<p>\u901a\u8fc7\u5982\u4e0b\u914d\u7f6e\u63a7\u5236Redis\u4f7f\u7528\u7684\u6700\u5927\u5185\u5b58\uff1a<\/p>\n<pre class=\"hljs lsl\"><code class=\"lsl hljs apache\"><span class=\"hljs-attribute\">maxmemory<\/span> <span class=\"hljs-number\">100mb<\/span><\/code><\/pre>\n<p>\u5728\u5185\u5b58\u5360\u7528\u8fbe\u5230\u4e86maxmemory\u540e\uff0c\u518d\u5411Redis\u5199\u5165\u6570\u636e\u65f6\uff0cRedis\u4f1a\uff1a<\/p>\n<ul>\n<li>\u6839\u636e\u914d\u7f6e\u7684\u6570\u636e\u6dd8\u6c70\u7b56\u7565\u5c1d\u8bd5\u6dd8\u6c70\u6570\u636e\uff0c\u91ca\u653e\u7a7a\u95f4<\/li>\n<li>\u5982\u679c\u6ca1\u6709\u6570\u636e\u53ef\u4ee5\u6dd8\u6c70\uff0c\u6216\u8005\u6ca1\u6709\u914d\u7f6e\u6570\u636e\u6dd8\u6c70\u7b56\u7565\uff0c\u90a3\u4e48Redis\u4f1a\u5bf9\u6240\u6709\u5199\u8bf7\u6c42\u8fd4\u56de\u9519\u8bef\uff0c\u4f46\u8bfb\u8bf7\u6c42\u4ecd\u7136\u53ef\u4ee5\u6b63\u5e38\u6267\u884c<\/li>\n<\/ul>\n<p>\u5728\u4e3aRedis\u8bbe\u7f6emaxmemory\u65f6\uff0c\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u91c7\u7528\u4e86Redis\u7684\u4e3b\u4ece\u540c\u6b65\uff0c\u4e3b\u8282\u70b9\u5411\u4ece\u8282\u70b9\u540c\u6b65\u6570\u636e\u65f6\uff0c\u4f1a\u5360\u7528\u6389\u4e00\u90e8\u5206\u5185\u5b58\u7a7a\u95f4\uff0c\u5982\u679cmaxmemory\u8fc7\u4e8e\u63a5\u8fd1\u4e3b\u673a\u7684\u53ef\u7528\u5185\u5b58\uff0c\u5bfc\u81f4\u6570\u636e\u540c\u6b65\u65f6\u5185\u5b58\u4e0d\u8db3\u3002\u6240\u4ee5\u8bbe\u7f6e\u7684maxmemory\u4e0d\u8981\u8fc7\u4e8e\u63a5\u8fd1\u4e3b\u673a\u53ef\u7528\u7684\u5185\u5b58\uff0c\u7559\u51fa\u4e00\u90e8\u5206\u9884\u7559\u7528\u4f5c\u4e3b\u4ece\u540c\u6b65\u3002<\/li>\n<\/ul>\n<h3>\u6570\u636e\u6dd8\u6c70\u673a\u5236<\/h3>\n<p>Redis\u63d0\u4f9b\u4e865\u79cd\u6570\u636e\u6dd8\u6c70\u7b56\u7565\uff1a<\/p>\n<ul>\n<li>volatile-lru\uff1a\u4f7f\u7528LRU\u7b97\u6cd5\u8fdb\u884c\u6570\u636e\u6dd8\u6c70\uff08\u6dd8\u6c70\u4e0a\u6b21\u4f7f\u7528\u65f6\u95f4\u6700\u65e9\u7684\uff0c\u4e14\u4f7f\u7528\u6b21\u6570\u6700\u5c11\u7684key\uff09\uff0c\u53ea\u6dd8\u6c70\u8bbe\u5b9a\u4e86\u6709\u6548\u671f\u7684key<\/li>\n<li>allkeys-lru\uff1a\u4f7f\u7528LRU\u7b97\u6cd5\u8fdb\u884c\u6570\u636e\u6dd8\u6c70\uff0c\u6240\u6709\u7684key\u90fd\u53ef\u4ee5\u88ab\u6dd8\u6c70<\/li>\n<li>volatile-random\uff1a\u968f\u673a\u6dd8\u6c70\u6570\u636e\uff0c\u53ea\u6dd8\u6c70\u8bbe\u5b9a\u4e86\u6709\u6548\u671f\u7684key<\/li>\n<li>allkeys-random\uff1a\u968f\u673a\u6dd8\u6c70\u6570\u636e\uff0c\u6240\u6709\u7684key\u90fd\u53ef\u4ee5\u88ab\u6dd8\u6c70<\/li>\n<li>volatile-ttl\uff1a\u6dd8\u6c70\u5269\u4f59\u6709\u6548\u671f\u6700\u77ed\u7684key<\/li>\n<\/ul>\n<p>\u6700\u597d\u4e3aRedis\u6307\u5b9a\u4e00\u79cd\u6709\u6548\u7684\u6570\u636e\u6dd8\u6c70\u7b56\u7565\u4ee5\u914d\u5408maxmemory\u8bbe\u7f6e\uff0c\u907f\u514d\u5728\u5185\u5b58\u4f7f\u7528\u6ee1\u540e\u53d1\u751f\u5199\u5165\u5931\u8d25\u7684\u60c5\u51b5\u3002<\/p>\n<p>\u4e00\u822c\u6765\u8bf4\uff0c\u63a8\u8350\u4f7f\u7528\u7684\u7b56\u7565\u662fvolatile-lru\uff0c\u5e76\u8fa8\u8bc6Redis\u4e2d\u4fdd\u5b58\u7684\u6570\u636e\u7684\u91cd\u8981\u6027\u3002\u5bf9\u4e8e\u90a3\u4e9b\u91cd\u8981\u7684\uff0c\u7edd\u5bf9\u4e0d\u80fd\u4e22\u5f03\u7684\u6570\u636e\uff08\u5982\u914d\u7f6e\u7c7b\u6570\u636e\u7b49\uff09\uff0c\u5e94\u4e0d\u8bbe\u7f6e\u6709\u6548\u671f\uff0c\u8fd9\u6837Redis\u5c31\u6c38\u8fdc\u4e0d\u4f1a\u6dd8\u6c70\u8fd9\u4e9b\u6570\u636e\u3002\u5bf9\u4e8e\u90a3\u4e9b\u76f8\u5bf9\u4e0d\u662f\u90a3\u4e48\u91cd\u8981\u7684\uff0c\u5e76\u4e14\u80fd\u591f\u70ed\u52a0\u8f7d\u7684\u6570\u636e\uff08\u6bd4\u5982\u7f13\u5b58\u6700\u8fd1\u767b\u5f55\u7684\u7528\u6237\u4fe1\u606f\uff0c\u5f53\u5728Redis\u4e2d\u627e\u4e0d\u5230\u65f6\uff0c\u7a0b\u5e8f\u4f1a\u53bbDB\u4e2d\u8bfb\u53d6\uff09\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u4e0a\u6709\u6548\u671f\uff0c\u8fd9\u6837\u5728\u5185\u5b58\u4e0d\u591f\u65f6Redis\u5c31\u4f1a\u6dd8\u6c70\u8fd9\u90e8\u5206\u6570\u636e\u3002<\/p>\n<p>\u914d\u7f6e\u65b9\u6cd5\uff1a<\/p>\n<pre class=\"hljs autoit\"><code class=\"autoit hljs csharp\">maxmemory-policy <span class=\"hljs-keyword\">volatile-lru   <span class=\"hljs-meta\">#\u9ed8\u8ba4\u662fnoeviction\uff0c\u5373\u4e0d\u8fdb\u884c\u6570\u636e\u6dd8\u6c70<\/span><\/span><\/code><\/pre>\n<h2>Pipelining<\/h2>\n<h3>Pipelining<\/h3>\n<p>Redis\u63d0\u4f9b\u8bb8\u591a\u6279\u91cf\u64cd\u4f5c\u7684\u547d\u4ee4\uff0c\u5982MSET\/MGET\/HMSET\/HMGET\u7b49\u7b49\uff0c\u8fd9\u4e9b\u547d\u4ee4\u5b58\u5728\u7684\u610f\u4e49\u662f\u51cf\u5c11\u7ef4\u62a4\u7f51\u7edc\u8fde\u63a5\u548c\u4f20\u8f93\u6570\u636e\u6240\u6d88\u8017\u7684\u8d44\u6e90\u548c\u65f6\u95f4\u3002<br \/>\n\u4f8b\u5982\u8fde\u7eed\u4f7f\u75285\u6b21SET\u547d\u4ee4\u8bbe\u7f6e5\u4e2a\u4e0d\u540c\u7684key\uff0c\u6bd4\u8d77\u4f7f\u7528\u4e00\u6b21MSET\u547d\u4ee4\u8bbe\u7f6e5\u4e2a\u4e0d\u540c\u7684key\uff0c\u6548\u679c\u662f\u4e00\u6837\u7684\uff0c\u4f46\u524d\u8005\u4f1a\u6d88\u8017\u66f4\u591a\u7684RTT(Round Trip Time)\u65f6\u957f\uff0c\u6c38\u8fdc\u5e94\u4f18\u5148\u4f7f\u7528\u540e\u8005\u3002<\/p>\n<p>\u7136\u800c\uff0c\u5982\u679c\u5ba2\u6237\u7aef\u8981\u8fde\u7eed\u6267\u884c\u7684\u591a\u6b21\u64cd\u4f5c\u65e0\u6cd5\u901a\u8fc7Redis\u547d\u4ee4\u7ec4\u5408\u5728\u4e00\u8d77\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre class=\"hljs gams\"><code class=\"gams hljs sql\"><span class=\"hljs-keyword\">SET a <span class=\"hljs-comment\"><span class=\"hljs-string\">\"abc\"<\/span>\r\nINCR b\r\nHSET c name <span class=\"hljs-string\">\"hi\"<\/span><\/span><\/span><\/code><\/pre>\n<p>\u6b64\u65f6\u4fbf\u53ef\u4ee5\u4f7f\u7528Redis\u63d0\u4f9b\u7684pipelining\u529f\u80fd\u6765\u5b9e\u73b0\u5728\u4e00\u6b21\u4ea4\u4e92\u4e2d\u6267\u884c\u591a\u6761\u547d\u4ee4\u3002<br \/>\n\u4f7f\u7528pipelining\u65f6\uff0c\u53ea\u9700\u8981\u4ece\u5ba2\u6237\u7aef\u4e00\u6b21\u5411Redis\u53d1\u9001\u591a\u6761\u547d\u4ee4\uff08\u4ee5\\r\\n\uff09\u5206\u9694\uff0cRedis\u5c31\u4f1a\u4f9d\u6b21\u6267\u884c\u8fd9\u4e9b\u547d\u4ee4\uff0c\u5e76\u4e14\u628a\u6bcf\u4e2a\u547d\u4ee4\u7684\u8fd4\u56de\u6309\u987a\u5e8f\u7ec4\u88c5\u5728\u4e00\u8d77\u4e00\u6b21\u8fd4\u56de\uff0c\u6bd4\u5982\uff1a<\/p>\n<pre class=\"hljs bash\"><code class=\"bash hljs\">$ (<span class=\"hljs-built_in\">printf <span class=\"hljs-string\">\"PING\\r\\nPING\\r\\nPING\\r\\n\"; sleep 1) | nc localhost 6379\r\n+PONG\r\n+PONG\r\n+PONG<\/span><\/span><\/code><\/pre>\n<p>\u5927\u90e8\u5206\u7684Redis\u5ba2\u6237\u7aef\u90fd\u5bf9Pipelining\u63d0\u4f9b\u652f\u6301\uff0c\u6240\u4ee5\u5f00\u53d1\u8005\u901a\u5e38\u5e76\u4e0d\u9700\u8981\u81ea\u5df1\u624b\u5de5\u62fc\u88c5\u547d\u4ee4\u5217\u8868\u3002<\/p>\n<h5>Pipelining\u7684\u5c40\u9650\u6027<\/h5>\n<p>Pipelining\u53ea\u80fd\u7528\u4e8e\u6267\u884c<strong>\u8fde\u7eed\u4e14\u65e0\u76f8\u5173\u6027<\/strong>\u7684\u547d\u4ee4\uff0c\u5f53\u67d0\u4e2a\u547d\u4ee4\u7684\u751f\u6210\u9700\u8981\u4f9d\u8d56\u4e8e\u524d\u4e00\u4e2a\u547d\u4ee4\u7684\u8fd4\u56de\u65f6\uff0c\u5c31\u65e0\u6cd5\u4f7f\u7528Pipelining\u4e86\u3002<\/p>\n<p>\u901a\u8fc7Scripting\u529f\u80fd\uff0c\u53ef\u4ee5\u89c4\u907f\u8fd9\u4e00\u5c40\u9650\u6027<\/p>\n<h2>\u4e8b\u52a1\u4e0eScripting<\/h2>\n<p>Pipelining\u80fd\u591f\u8ba9Redis\u5728\u4e00\u6b21\u4ea4\u4e92\u4e2d\u5904\u7406\u591a\u6761\u547d\u4ee4\uff0c\u7136\u800c\u5728\u4e00\u4e9b\u573a\u666f\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5728\u6b64\u57fa\u7840\u4e0a\u786e\u4fdd\u8fd9\u4e00\u7ec4\u547d\u4ee4\u662f\u8fde\u7eed\u6267\u884c\u7684\u3002<\/p>\n<p>\u6bd4\u5982\u83b7\u53d6\u5f53\u524d\u7d2f\u8ba1\u7684PV\u6570\u5e76\u5c06\u5176\u6e050<\/p>\n<pre class=\"hljs routeros\"><code class=\"routeros hljs markdown\"><span class=\"hljs-quote\">&gt; <\/span><span class=\"hljs-builtin-name\"><span class=\"hljs-quote\">GET vCount<\/span>\r\n12384\r\n<span class=\"hljs-quote\">&gt; <\/span><span class=\"hljs-quote\">SET vCount 0<\/span>\r\nOK<\/span><\/code><\/pre>\n<p>\u5982\u679c\u5728GET\u548cSET\u547d\u4ee4\u4e4b\u95f4\u63d2\u8fdb\u6765\u4e00\u4e2aINCR vCount\uff0c\u5c31\u4f1a\u4f7f\u5ba2\u6237\u7aef\u62ff\u5230\u7684vCount\u4e0d\u51c6\u786e\u3002<\/p>\n<p>Redis\u7684\u4e8b\u52a1\u53ef\u4ee5\u786e\u4fdd\u590d\u6570\u547d\u4ee4\u6267\u884c\u65f6\u7684\u539f\u5b50\u6027\u3002\u4e5f\u5c31\u662f\u8bf4Redis\u80fd\u591f\u4fdd\u8bc1\uff1a\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u7684\u4e00\u7ec4\u547d\u4ee4\u662f\u7edd\u5bf9\u8fde\u7eed\u6267\u884c\u7684\uff0c\u5728\u8fd9\u4e9b\u547d\u4ee4\u6267\u884c\u5b8c\u6210\u4e4b\u524d\uff0c\u7edd\u5bf9\u4e0d\u4f1a\u6709\u6765\u81ea\u4e8e\u5176\u4ed6\u8fde\u63a5\u7684\u5176\u4ed6\u547d\u4ee4\u63d2\u8fdb\u53bb\u6267\u884c\u3002<\/p>\n<p>\u901a\u8fc7MULTI\u548cEXEC\u547d\u4ee4\u6765\u628a\u8fd9\u4e24\u4e2a\u547d\u4ee4\u52a0\u5165\u4e00\u4e2a\u4e8b\u52a1\u4e2d\uff1a<\/p>\n<pre class=\"hljs shell\"><code class=\"shell hljs\"><span class=\"hljs-meta\">&gt;<span class=\"bash\"> MULTI\r\nOK\r\n&gt; GET vCount\r\nQUEUED\r\n&gt; SET vCount 0\r\nQUEUED\r\n&gt; EXEC\r\n1) 12384\r\n2) OK<\/span><\/span><\/code><\/pre>\n<p>Redis\u5728\u63a5\u6536\u5230MULTI\u547d\u4ee4\u540e\u4fbf\u4f1a\u5f00\u542f\u4e00\u4e2a\u4e8b\u52a1\uff0c\u8fd9\u4e4b\u540e\u7684\u6240\u6709\u8bfb\u5199\u547d\u4ee4\u90fd\u4f1a\u4fdd\u5b58\u5728\u961f\u5217\u4e2d\u4f46\u5e76\u4e0d\u6267\u884c\uff0c\u76f4\u5230\u63a5\u6536\u5230EXEC\u547d\u4ee4\u540e\uff0cRedis\u4f1a\u628a\u961f\u5217\u4e2d\u7684\u6240\u6709\u547d\u4ee4\u8fde\u7eed\u987a\u5e8f\u6267\u884c\uff0c\u5e76\u4ee5\u6570\u7ec4\u5f62\u5f0f\u8fd4\u56de\u6bcf\u4e2a\u547d\u4ee4\u7684\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528DISCARD\u547d\u4ee4\u653e\u5f03\u5f53\u524d\u7684\u4e8b\u52a1\uff0c\u5c06\u4fdd\u5b58\u7684\u547d\u4ee4\u961f\u5217\u6e05\u7a7a\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c<strong>Redis\u4e8b\u52a1\u4e0d\u652f\u6301\u56de\u6eda<\/strong>\uff1a<br \/>\n\u5982\u679c\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u7684\u547d\u4ee4\u51fa\u73b0\u4e86\u8bed\u6cd5\u9519\u8bef\uff0c\u5927\u90e8\u5206\u5ba2\u6237\u7aef\u9a71\u52a8\u4f1a\u8fd4\u56de\u9519\u8bef\uff0c2.6.5\u7248\u672c\u4ee5\u4e0a\u7684Redis\u4e5f\u4f1a\u5728\u6267\u884cEXEC\u65f6\u68c0\u67e5\u961f\u5217\u4e2d\u7684\u547d\u4ee4\u662f\u5426\u5b58\u5728\u8bed\u6cd5\u9519\u8bef\uff0c\u5982\u679c\u5b58\u5728\uff0c\u5219\u4f1a\u81ea\u52a8\u653e\u5f03\u4e8b\u52a1\u5e76\u8fd4\u56de\u9519\u8bef\u3002<br \/>\n\u4f46\u5982\u679c\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u7684\u547d\u4ee4\u6709\u975e\u8bed\u6cd5\u7c7b\u7684\u9519\u8bef\uff08\u6bd4\u5982\u5bf9String\u6267\u884cHSET\u64cd\u4f5c\uff09\uff0c\u65e0\u8bba\u5ba2\u6237\u7aef\u9a71\u52a8\u8fd8\u662fRedis\u90fd\u65e0\u6cd5\u5728\u771f\u6b63\u6267\u884c\u8fd9\u6761\u547d\u4ee4\u4e4b\u524d\u53d1\u73b0\uff0c\u6240\u4ee5\u4e8b\u52a1\u4e2d\u7684\u6240\u6709\u547d\u4ee4\u4ecd\u7136\u4f1a\u88ab\u4f9d\u6b21\u6267\u884c\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4f1a\u51fa\u73b0\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u90e8\u5206\u547d\u4ee4\u6210\u529f\u90e8\u5206\u547d\u4ee4\u5931\u8d25\u7684\u60c5\u51b5\uff0c\u7136\u800c\u4e0eRDBMS\u4e0d\u540c\uff0cRedis\u4e0d\u63d0\u4f9b\u4e8b\u52a1\u56de\u6eda\u7684\u529f\u80fd\uff0c\u6240\u4ee5\u53ea\u80fd\u901a\u8fc7\u5176\u4ed6\u65b9\u6cd5\u8fdb\u884c\u6570\u636e\u7684\u56de\u6eda\u3002<\/p>\n<h3>\u901a\u8fc7\u4e8b\u52a1\u5b9e\u73b0CAS<\/h3>\n<p>Redis\u63d0\u4f9b\u4e86WATCH\u547d\u4ee4\u4e0e\u4e8b\u52a1\u642d\u914d\u4f7f\u7528\uff0c\u5b9e\u73b0CAS\u4e50\u89c2\u9501\u7684\u673a\u5236\u3002<\/p>\n<p>\u5047\u8bbe\u8981\u5b9e\u73b0\u5c06\u67d0\u4e2a\u5546\u54c1\u7684\u72b6\u6001\u6539\u4e3a\u5df2\u552e\uff1a<\/p>\n<pre class=\"hljs pf\"><code class=\"pf hljs lisp\">if(<span class=\"hljs-name\">exec<\/span>(<span class=\"hljs-name\">HGET<\/span> stock:<span class=\"hljs-number\">1001 <span class=\"hljs-keyword\">state) == <span class=\"hljs-string\">\"in stock\")\r\n    exec(<span class=\"hljs-name\">HSET<\/span> stock:1001 state \"sold\")<span class=\"hljs-comment\">;<\/span><\/span><\/span><\/span><\/code><\/pre>\n<p>\u8fd9\u4e00\u4f2a\u4ee3\u7801\u6267\u884c\u65f6\uff0c\u65e0\u6cd5\u786e\u4fdd\u5e76\u53d1\u5b89\u5168\u6027\uff0c\u6709\u53ef\u80fd\u591a\u4e2a\u5ba2\u6237\u7aef\u90fd\u83b7\u53d6\u5230\u4e86&#8221;in stock&#8221;\u7684\u72b6\u6001\uff0c\u5bfc\u81f4\u4e00\u4e2a\u5e93\u5b58\u88ab\u552e\u5356\u591a\u6b21\u3002<\/p>\n<p>\u4f7f\u7528WATCH\u547d\u4ee4\u548c\u4e8b\u52a1\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\uff1a<\/p>\n<pre class=\"hljs pf\"><code class=\"pf hljs less\"><span class=\"hljs-selector-tag\">exec<\/span>(WATCH <span class=\"hljs-attribute\">stock<\/span>:<span class=\"hljs-number\">1001);\r\n<span class=\"hljs-selector-tag\">if<\/span>(exec(HGET <span class=\"hljs-attribute\">stock<\/span>:1001 <span class=\"hljs-keyword\">state) == <span class=\"hljs-string\">\"in stock\") {\r\n    <span class=\"hljs-selector-tag\">exec<\/span>(MULTI);\r\n    <span class=\"hljs-selector-tag\">exec<\/span>(HSET <span class=\"hljs-attribute\">stock<\/span>:1001 state \"sold\");\r\n    <span class=\"hljs-selector-tag\">exec<\/span>(EXEC);\r\n}<\/span><\/span><\/span><\/code><\/pre>\n<p>WATCH\u7684\u673a\u5236\u662f\uff1a\u5728\u4e8b\u52a1EXEC\u547d\u4ee4\u6267\u884c\u65f6\uff0cRedis\u4f1a\u68c0\u67e5\u88abWATCH\u7684key\uff0c\u53ea\u6709\u88abWATCH\u7684key\u4eceWATCH\u8d77\u59cb\u65f6\u81f3\u4eca\u6ca1\u6709\u53d1\u751f\u8fc7\u53d8\u66f4\uff0cEXEC\u624d\u4f1a\u88ab\u6267\u884c\u3002\u5982\u679cWATCH\u7684key\u5728WATCH\u547d\u4ee4\u5230EXEC\u547d\u4ee4\u4e4b\u95f4\u53d1\u751f\u8fc7\u53d8\u5316\uff0c\u5219EXEC\u547d\u4ee4\u4f1a\u8fd4\u56de\u5931\u8d25\u3002<\/p>\n<h3>Scripting<\/h3>\n<p>\u901a\u8fc7EVAL\u4e0eEVALSHA\u547d\u4ee4\uff0c\u53ef\u4ee5\u8ba9Redis\u6267\u884cLUA\u811a\u672c\u3002\u8fd9\u5c31\u7c7b\u4f3c\u4e8eRDBMS\u7684\u5b58\u50a8\u8fc7\u7a0b\u4e00\u6837\uff0c\u53ef\u4ee5\u628a\u5ba2\u6237\u7aef\u4e0eRedis\u4e4b\u95f4\u5bc6\u96c6\u7684\u8bfb\/\u5199\u4ea4\u4e92\u653e\u5728\u670d\u52a1\u7aef\u8fdb\u884c\uff0c\u907f\u514d\u8fc7\u591a\u7684\u6570\u636e\u4ea4\u4e92\uff0c\u63d0\u5347\u6027\u80fd\u3002<\/p>\n<p>Scripting\u529f\u80fd\u662f\u4f5c\u4e3a\u4e8b\u52a1\u529f\u80fd\u7684\u66ff\u4ee3\u8005\u8bde\u751f\u7684\uff0c\u4e8b\u52a1\u63d0\u4f9b\u7684\u6240\u6709\u80fd\u529bScripting\u90fd\u53ef\u4ee5\u505a\u5230\u3002Redis\u5b98\u65b9\u63a8\u8350\u4f7f\u7528LUA Script\u6765\u4ee3\u66ff\u4e8b\u52a1\uff0c\u524d\u8005\u7684\u6548\u7387\u548c\u4fbf\u5229\u6027\u90fd\u8d85\u8fc7\u4e86\u4e8b\u52a1\u3002<\/p>\n<p>\u5173\u4e8eScripting\u7684\u5177\u4f53\u4f7f\u7528\uff0c\u672c\u6587\u4e0d\u505a\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u8bf7\u53c2\u8003\u5b98\u65b9\u6587\u6863\u00a0<a href=\"https:\/\/redis.io\/commands\/eval\" target=\"_blank\" rel=\"noopener\">https:\/\/redis.io\/commands\/eval<\/a><\/p>\n<h2>Redis\u6027\u80fd\u8c03\u4f18<\/h2>\n<p>\u5c3d\u7ba1Redis\u662f\u4e00\u4e2a\u975e\u5e38\u5feb\u901f\u7684\u5185\u5b58\u6570\u636e\u5b58\u50a8\u5a92\u4ecb\uff0c\u4e5f\u5e76\u4e0d\u4ee3\u8868Redis\u4e0d\u4f1a\u4ea7\u751f\u6027\u80fd\u95ee\u9898\u3002<br \/>\n\u524d\u6587\u4e2d\u63d0\u5230\u8fc7\uff0cRedis\u91c7\u7528\u5355\u7ebf\u7a0b\u6a21\u578b\uff0c\u6240\u6709\u7684\u547d\u4ee4\u90fd\u662f\u7531\u4e00\u4e2a\u7ebf\u7a0b\u4e32\u884c\u6267\u884c\u7684\uff0c\u6240\u4ee5\u5f53\u67d0\u4e2a\u547d\u4ee4\u6267\u884c\u8017\u65f6\u8f83\u957f\u65f6\uff0c\u4f1a\u62d6\u6162\u5176\u540e\u7684\u6240\u6709\u547d\u4ee4\uff0c\u8fd9\u4f7f\u5f97Redis\u5bf9\u6bcf\u4e2a\u4efb\u52a1\u7684\u6267\u884c\u6548\u7387\u66f4\u52a0\u654f\u611f\u3002<\/p>\n<p>\u9488\u5bf9Redis\u7684\u6027\u80fd\u4f18\u5316\uff0c\u4e3b\u8981\u4ece\u4e0b\u9762\u51e0\u4e2a\u5c42\u9762\u5165\u624b\uff1a<\/p>\n<ul>\n<li>\u6700\u521d\u7684\u4e5f\u662f\u6700\u91cd\u8981\u7684\uff0c\u786e\u4fdd\u6ca1\u6709\u8ba9Redis\u6267\u884c\u8017\u65f6\u957f\u7684\u547d\u4ee4<\/li>\n<li>\u4f7f\u7528pipelining\u5c06\u8fde\u7eed\u6267\u884c\u7684\u547d\u4ee4\u7ec4\u5408\u6267\u884c<\/li>\n<li>\u64cd\u4f5c\u7cfb\u7edf\u7684Transparent huge pages\u529f\u80fd\u5fc5\u987b\u5173\u95ed\uff1a\n<pre class=\"hljs awk\"><code class=\"awk hljs typescript\">echo <span class=\"hljs-built_in\">never<\/span> &gt; <span class=\"hljs-regexp\">\/sys\/kernel\/mm\/transparent_hugepage\/enabled<\/span><\/code><\/pre>\n<\/li>\n<li>\u5982\u679c\u5728\u865a\u62df\u673a\u4e2d\u8fd0\u884cRedis\uff0c\u53ef\u80fd\u5929\u7136\u5c31\u6709\u865a\u62df\u673a\u73af\u5883\u5e26\u6765\u7684\u56fa\u6709\u5ef6\u8fdf\u3002\u53ef\u4ee5\u901a\u8fc7.\/redis-cli &#8211;intrinsic-latency 100\u547d\u4ee4\u67e5\u770b\u56fa\u6709\u5ef6\u8fdf\u3002\u540c\u65f6\u5982\u679c\u5bf9Redis\u7684\u6027\u80fd\u6709\u8f83\u9ad8\u8981\u6c42\u7684\u8bdd\uff0c\u5e94\u5c3d\u53ef\u80fd\u5728\u7269\u7406\u673a\u4e0a\u76f4\u63a5\u90e8\u7f72Redis\u3002<\/li>\n<li>\u68c0\u67e5\u6570\u636e\u6301\u4e45\u5316\u7b56\u7565<\/li>\n<li>\u8003\u8651\u5f15\u5165\u8bfb\u5199\u5206\u79bb\u673a\u5236<\/li>\n<\/ul>\n<h3>\u957f\u8017\u65f6\u547d\u4ee4<\/h3>\n<p>Redis\u7edd\u5927\u591a\u6570\u8bfb\u5199\u547d\u4ee4\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u90fd\u5728O(1)\u5230O(N)\u4e4b\u95f4\uff0c\u5728\u6587\u672c\u548c\u5b98\u65b9\u6587\u6863\u4e2d\u5747\u5bf9\u6bcf\u4e2a\u547d\u4ee4\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u6709\u8bf4\u660e\u3002<\/p>\n<p>\u901a\u5e38\u6765\u8bf4\uff0cO(1)\u7684\u547d\u4ee4\u662f\u5b89\u5168\u7684\uff0cO(N)\u547d\u4ee4\u5728\u4f7f\u7528\u65f6\u9700\u8981\u6ce8\u610f\uff0c\u5982\u679cN\u7684\u6570\u91cf\u7ea7\u4e0d\u53ef\u9884\u77e5\uff0c\u5219\u5e94\u907f\u514d\u4f7f\u7528\u3002\u4f8b\u5982\u5bf9\u4e00\u4e2afield\u6570\u672a\u77e5\u7684Hash\u6570\u636e\u6267\u884cHGETALL\/HKEYS\/HVALS\u547d\u4ee4\uff0c\u901a\u5e38\u6765\u8bf4\u8fd9\u4e9b\u547d\u4ee4\u6267\u884c\u7684\u5f88\u5feb\uff0c\u4f46\u5982\u679c\u8fd9\u4e2aHash\u4e2d\u7684field\u6570\u91cf\u6781\u591a\uff0c\u8017\u65f6\u5c31\u4f1a\u6210\u500d\u589e\u957f\u3002<br \/>\n\u53c8\u5982\u4f7f\u7528SUNION\u5bf9\u4e24\u4e2aSet\u6267\u884cUnion\u64cd\u4f5c\uff0c\u6216\u4f7f\u7528SORT\u5bf9List\/Set\u6267\u884c\u6392\u5e8f\u64cd\u4f5c\u7b49\u65f6\uff0c\u90fd\u5e94\u8be5\u4e25\u52a0\u6ce8\u610f\u3002<\/p>\n<p>\u907f\u514d\u5728\u4f7f\u7528\u8fd9\u4e9bO(N)\u547d\u4ee4\u65f6\u53d1\u751f\u95ee\u9898\u4e3b\u8981\u6709\u51e0\u4e2a\u529e\u6cd5\uff1a<\/p>\n<ul>\n<li>\u4e0d\u8981\u628aList\u5f53\u505a\u5217\u8868\u4f7f\u7528\uff0c\u4ec5\u5f53\u505a\u961f\u5217\u6765\u4f7f\u7528<\/li>\n<li>\u901a\u8fc7\u673a\u5236\u4e25\u683c\u63a7\u5236Hash\u3001Set\u3001Sorted Set\u7684\u5927\u5c0f<\/li>\n<li>\u53ef\u80fd\u7684\u8bdd\uff0c\u5c06\u6392\u5e8f\u3001\u5e76\u96c6\u3001\u4ea4\u96c6\u7b49\u64cd\u4f5c\u653e\u5728\u5ba2\u6237\u7aef\u6267\u884c<\/li>\n<li>\u7edd\u5bf9\u7981\u6b62\u4f7f\u7528KEYS\u547d\u4ee4<\/li>\n<li>\u907f\u514d\u4e00\u6b21\u6027\u904d\u5386\u96c6\u5408\u7c7b\u578b\u7684\u6240\u6709\u6210\u5458\uff0c\u800c\u5e94\u4f7f\u7528SCAN\u7c7b\u7684\u547d\u4ee4\u8fdb\u884c\u5206\u6279\u7684\uff0c\u6e38\u6807\u5f0f\u7684\u904d\u5386<\/li>\n<\/ul>\n<p>Redis\u63d0\u4f9b\u4e86SCAN\u547d\u4ee4\uff0c\u53ef\u4ee5\u5bf9Redis\u4e2d\u5b58\u50a8\u7684\u6240\u6709key\u8fdb\u884c\u6e38\u6807\u5f0f\u7684\u904d\u5386\uff0c\u907f\u514d\u4f7f\u7528KEYS\u547d\u4ee4\u5e26\u6765\u7684\u6027\u80fd\u95ee\u9898\u3002\u540c\u65f6\u8fd8\u6709SSCAN\/HSCAN\/ZSCAN\u7b49\u547d\u4ee4\uff0c\u5206\u522b\u7528\u4e8e\u5bf9Set\/Hash\/Sorted Set\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u6e38\u6807\u5f0f\u904d\u5386\u3002SCAN\u7c7b\u547d\u4ee4\u7684\u4f7f\u7528\u8bf7\u53c2\u8003\u5b98\u65b9\u6587\u6863\uff1a<a href=\"https:\/\/redis.io\/commands\/scan\" target=\"_blank\" rel=\"noopener\">https:\/\/redis.io\/commands\/scan<\/a><\/p>\n<p>Redis\u63d0\u4f9b\u4e86Slow Log\u529f\u80fd\uff0c\u53ef\u4ee5\u81ea\u52a8\u8bb0\u5f55\u8017\u65f6\u8f83\u957f\u7684\u547d\u4ee4\u3002\u76f8\u5173\u7684\u914d\u7f6e\u53c2\u6570\u6709\u4e24\u4e2a\uff1a<\/p>\n<pre class=\"hljs bash\"><code class=\"bash hljs\">slowlog-log-slower-than xxxms  <span class=\"hljs-comment\">#\u6267\u884c\u65f6\u95f4\u6162\u4e8exxx\u6beb\u79d2\u7684\u547d\u4ee4\u8ba1\u5165Slow Log\r\nslowlog-max-len xxx  #Slow Log\u7684\u957f\u5ea6\uff0c\u5373\u6700\u5927\u7eaa\u5f55\u591a\u5c11\u6761Slow Log<\/span><\/code><\/pre>\n<p>\u4f7f\u7528<strong>SLOWLOG GET [number]<\/strong>\u547d\u4ee4\uff0c\u53ef\u4ee5\u8f93\u51fa\u6700\u8fd1\u8fdb\u5165Slow Log\u7684number\u6761\u547d\u4ee4\u3002<br \/>\n\u4f7f\u7528<strong>SLOWLOG RESET<\/strong>\u547d\u4ee4\uff0c\u53ef\u4ee5\u91cd\u7f6eSlow Log<\/p>\n<h3>\u7f51\u7edc\u5f15\u53d1\u7684\u5ef6\u8fdf<\/h3>\n<ul>\n<li>\u5c3d\u53ef\u80fd\u4f7f\u7528\u957f\u8fde\u63a5\u6216\u8fde\u63a5\u6c60\uff0c\u907f\u514d\u9891\u7e41\u521b\u5efa\u9500\u6bc1\u8fde\u63a5<\/li>\n<li>\u5ba2\u6237\u7aef\u8fdb\u884c\u7684\u6279\u91cf\u6570\u636e\u64cd\u4f5c\uff0c\u5e94\u4f7f\u7528Pipeline\u7279\u6027\u5728\u4e00\u6b21\u4ea4\u4e92\u4e2d\u5b8c\u6210\u3002\u5177\u4f53\u8bf7\u53c2\u7167\u672c\u6587\u7684Pipelining\u7ae0\u8282<\/li>\n<\/ul>\n<h3>\u6570\u636e\u6301\u4e45\u5316\u5f15\u53d1\u7684\u5ef6\u8fdf<\/h3>\n<p>Redis\u7684\u6570\u636e\u6301\u4e45\u5316\u5de5\u4f5c\u672c\u8eab\u5c31\u4f1a\u5e26\u6765\u5ef6\u8fdf\uff0c\u9700\u8981\u6839\u636e\u6570\u636e\u7684\u5b89\u5168\u7ea7\u522b\u548c\u6027\u80fd\u8981\u6c42\u5236\u5b9a\u5408\u7406\u7684\u6301\u4e45\u5316\u7b56\u7565\uff1a<\/p>\n<ul>\n<li>AOF + fsync always\u7684\u8bbe\u7f6e\u867d\u7136\u80fd\u591f\u7edd\u5bf9\u786e\u4fdd\u6570\u636e\u5b89\u5168\uff0c\u4f46\u6bcf\u4e2a\u64cd\u4f5c\u90fd\u4f1a\u89e6\u53d1\u4e00\u6b21fsync\uff0c\u4f1a\u5bf9Redis\u7684\u6027\u80fd\u6709\u6bd4\u8f83\u660e\u663e\u7684\u5f71\u54cd<\/li>\n<li>AOF + fsync every second\u662f\u6bd4\u8f83\u597d\u7684\u6298\u4e2d\u65b9\u6848\uff0c\u6bcf\u79d2fsync\u4e00\u6b21<\/li>\n<li>AOF + fsync never\u4f1a\u63d0\u4f9bAOF\u6301\u4e45\u5316\u65b9\u6848\u4e0b\u7684\u6700\u4f18\u6027\u80fd<\/li>\n<li>\u4f7f\u7528RDB\u6301\u4e45\u5316\u901a\u5e38\u4f1a\u63d0\u4f9b\u6bd4\u4f7f\u7528AOF\u66f4\u9ad8\u7684\u6027\u80fd\uff0c\u4f46\u9700\u8981\u6ce8\u610fRDB\u7684\u7b56\u7565\u914d\u7f6e<\/li>\n<li>\u6bcf\u4e00\u6b21RDB\u5feb\u7167\u548cAOF Rewrite\u90fd\u9700\u8981Redis\u4e3b\u8fdb\u7a0b\u8fdb\u884cfork\u64cd\u4f5c\u3002fork\u64cd\u4f5c\u672c\u8eab\u53ef\u80fd\u4f1a\u4ea7\u751f\u8f83\u9ad8\u7684\u8017\u65f6\uff0c\u4e0eCPU\u548cRedis\u5360\u7528\u7684\u5185\u5b58\u5927\u5c0f\u6709\u5173\u3002\u6839\u636e\u5177\u4f53\u7684\u60c5\u51b5\u5408\u7406\u914d\u7f6eRDB\u5feb\u7167\u548cAOF Rewrite\u65f6\u673a\uff0c\u907f\u514d\u8fc7\u4e8e\u9891\u7e41\u7684fork\u5e26\u6765\u7684\u5ef6\u8fdf<\/li>\n<\/ul>\n<blockquote><p>Redis\u5728fork\u5b50\u8fdb\u7a0b\u65f6\u9700\u8981\u5c06\u5185\u5b58\u5206\u9875\u8868\u62f7\u8d1d\u81f3\u5b50\u8fdb\u7a0b\uff0c\u4ee5\u5360\u7528\u4e8624GB\u5185\u5b58\u7684Redis\u5b9e\u4f8b\u4e3a\u4f8b\uff0c\u5171\u9700\u8981\u62f7\u8d1d24GB \/ 4kB * 8 = 48MB\u7684\u6570\u636e\u3002\u5728\u4f7f\u7528\u5355Xeon 2.27Ghz\u7684\u7269\u7406\u673a\u4e0a\uff0c\u8fd9\u4e00fork\u64cd\u4f5c\u8017\u65f6216ms\u3002<\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7<strong>INFO<\/strong>\u547d\u4ee4\u8fd4\u56de\u7684latest_fork_usec\u5b57\u6bb5\u67e5\u770b\u4e0a\u4e00\u6b21fork\u64cd\u4f5c\u7684\u8017\u65f6\uff08\u5fae\u79d2\uff09<\/p><\/blockquote>\n<h3>Swap\u5f15\u53d1\u7684\u5ef6\u8fdf<\/h3>\n<p>\u5f53Linux\u5c06Redis\u6240\u7528\u7684\u5185\u5b58\u5206\u9875\u79fb\u81f3swap\u7a7a\u95f4\u65f6\uff0c\u5c06\u4f1a\u963b\u585eRedis\u8fdb\u7a0b\uff0c\u5bfc\u81f4Redis\u51fa\u73b0\u4e0d\u6b63\u5e38\u7684\u5ef6\u8fdf\u3002Swap\u901a\u5e38\u5728\u7269\u7406\u5185\u5b58\u4e0d\u8db3\u6216\u4e00\u4e9b\u8fdb\u7a0b\u5728\u8fdb\u884c\u5927\u91cfI\/O\u64cd\u4f5c\u65f6\u53d1\u751f\uff0c\u5e94\u5c3d\u53ef\u80fd\u907f\u514d\u4e0a\u8ff0\u4e24\u79cd\u60c5\u51b5\u7684\u51fa\u73b0\u3002<\/p>\n<p>\/proc\/&lt;pid&gt;\/smaps\u6587\u4ef6\u4e2d\u4f1a\u4fdd\u5b58\u8fdb\u7a0b\u7684swap\u8bb0\u5f55\uff0c\u901a\u8fc7\u67e5\u770b\u8fd9\u4e2a\u6587\u4ef6\uff0c\u80fd\u591f\u5224\u65adRedis\u7684\u5ef6\u8fdf\u662f\u5426\u7531Swap\u4ea7\u751f\u3002\u5982\u679c\u8fd9\u4e2a\u6587\u4ef6\u4e2d\u8bb0\u5f55\u4e86\u8f83\u5927\u7684Swap size\uff0c\u5219\u8bf4\u660e\u5ef6\u8fdf\u5f88\u6709\u53ef\u80fd\u662fSwap\u9020\u6210\u7684\u3002<\/p>\n<h3>\u6570\u636e\u6dd8\u6c70\u5f15\u53d1\u7684\u5ef6\u8fdf<\/h3>\n<p>\u5f53\u540c\u4e00\u79d2\u5185\u6709\u5927\u91cfkey\u8fc7\u671f\u65f6\uff0c\u4e5f\u4f1a\u5f15\u53d1Redis\u7684\u5ef6\u8fdf\u3002\u5728\u4f7f\u7528\u65f6\u5e94\u5c3d\u91cf\u5c06key\u7684\u5931\u6548\u65f6\u95f4\u9519\u5f00\u3002<\/p>\n<h3>\u5f15\u5165\u8bfb\u5199\u5206\u79bb\u673a\u5236<\/h3>\n<p>Redis\u7684\u4e3b\u4ece\u590d\u5236\u80fd\u529b\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e3b\u591a\u4ece\u7684\u591a\u8282\u70b9\u67b6\u6784\uff0c\u5728\u8fd9\u4e00\u67b6\u6784\u4e0b\uff0c\u4e3b\u8282\u70b9\u63a5\u6536\u6240\u6709\u5199\u8bf7\u6c42\uff0c\u5e76\u5c06\u6570\u636e\u540c\u6b65\u7ed9\u591a\u4e2a\u4ece\u8282\u70b9\u3002<br \/>\n\u5728\u8fd9\u4e00\u57fa\u7840\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba9\u4ece\u8282\u70b9\u63d0\u4f9b\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u4e0d\u9ad8\u7684\u8bfb\u8bf7\u6c42\u670d\u52a1\uff0c\u4ee5\u51cf\u5c0f\u4e3b\u8282\u70b9\u7684\u538b\u529b\u3002<br \/>\n\u5c24\u5176\u662f\u9488\u5bf9\u4e00\u4e9b\u4f7f\u7528\u4e86\u957f\u8017\u65f6\u547d\u4ee4\u7684\u7edf\u8ba1\u7c7b\u4efb\u52a1\uff0c\u5b8c\u5168\u53ef\u4ee5\u6307\u5b9a\u5728\u4e00\u4e2a\u6216\u591a\u4e2a\u4ece\u8282\u70b9\u4e0a\u6267\u884c\uff0c\u907f\u514d\u8fd9\u4e9b\u957f\u8017\u65f6\u547d\u4ee4\u5f71\u54cd\u5176\u4ed6\u8bf7\u6c42\u7684\u54cd\u5e94\u3002<\/p>\n<p>\u5173\u4e8e\u8bfb\u5199\u5206\u79bb\u7684\u5177\u4f53\u8bf4\u660e\uff0c\u8bf7\u53c2\u89c1\u540e\u7eed\u7ae0\u8282<\/p>\n<h2>\u4e3b\u4ece\u590d\u5236\u4e0e\u96c6\u7fa4\u5206\u7247<\/h2>\n<h3>\u4e3b\u4ece\u590d\u5236<\/h3>\n<p>Redis\u652f\u6301\u4e00\u4e3b\u591a\u4ece\u7684\u4e3b\u4ece\u590d\u5236\u67b6\u6784\u3002\u4e00\u4e2aMaster\u5b9e\u4f8b\u8d1f\u8d23\u5904\u7406\u6240\u6709\u7684\u5199\u8bf7\u6c42\uff0cMaster\u5c06\u5199\u64cd\u4f5c\u540c\u6b65\u81f3\u6240\u6709Slave\u3002<br \/>\n\u501f\u52a9Redis\u7684\u4e3b\u4ece\u590d\u5236\uff0c\u53ef\u4ee5\u5b9e\u73b0\u8bfb\u5199\u5206\u79bb\u548c\u9ad8\u53ef\u7528\uff1a<\/p>\n<ul>\n<li>\u5b9e\u65f6\u6027\u8981\u6c42\u4e0d\u662f\u7279\u522b\u9ad8\u7684\u8bfb\u8bf7\u6c42\uff0c\u53ef\u4ee5\u5728Slave\u4e0a\u5b8c\u6210\uff0c\u63d0\u5347\u6548\u7387\u3002\u7279\u522b\u662f\u4e00\u4e9b\u5468\u671f\u6027\u6267\u884c\u7684\u7edf\u8ba1\u4efb\u52a1\uff0c\u8fd9\u4e9b\u4efb\u52a1\u53ef\u80fd\u9700\u8981\u6267\u884c\u4e00\u4e9b\u957f\u8017\u65f6\u7684Redis\u547d\u4ee4\uff0c\u53ef\u4ee5\u4e13\u95e8\u89c4\u5212\u51fa1\u4e2a\u6216\u51e0\u4e2aSlave\u7528\u4e8e\u670d\u52a1\u8fd9\u4e9b\u7edf\u8ba1\u4efb\u52a1<\/li>\n<li>\u501f\u52a9Redis Sentinel\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u53ef\u7528\uff0c\u5f53Master crash\u540e\uff0cRedis Sentinel\u80fd\u591f\u81ea\u52a8\u5c06\u4e00\u4e2aSlave\u664b\u5347\u4e3aMaster\uff0c\u7ee7\u7eed\u63d0\u4f9b\u670d\u52a1<\/li>\n<\/ul>\n<p>\u542f\u7528\u4e3b\u4ece\u590d\u5236\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u914d\u7f6e\u591a\u4e2aRedis\u5b9e\u4f8b\uff0c\u5728\u4f5c\u4e3aSlave\u7684Redis\u5b9e\u4f8b\u4e2d\u914d\u7f6e\uff1a<\/p>\n<pre class=\"hljs lsl\"><code class=\"lsl hljs yaml\"><span class=\"hljs-string\">slaveof<\/span> <span class=\"hljs-number\">192.168.1.1 6379  <span class=\"hljs-comment\">#\u6307\u5b9aMaster\u7684IP\u548c\u7aef\u53e3<\/span><\/span><\/code><\/pre>\n<p>\u5f53Slave\u542f\u52a8\u540e\uff0c\u4f1a\u4eceMaster\u8fdb\u884c\u4e00\u6b21\u51b7\u542f\u52a8\u6570\u636e\u540c\u6b65\uff0c\u7531Master\u89e6\u53d1BGSAVE\u751f\u6210RDB\u6587\u4ef6\u63a8\u9001\u7ed9Slave\u8fdb\u884c\u5bfc\u5165\uff0c\u5bfc\u5165\u5b8c\u6210\u540eMaster\u518d\u5c06\u589e\u91cf\u6570\u636e\u901a\u8fc7Redis Protocol\u540c\u6b65\u7ed9Slave\u3002\u4e4b\u540e\u4e3b\u4ece\u4e4b\u95f4\u7684\u6570\u636e\u4fbf\u4e00\u76f4\u4ee5Redis Protocol\u8fdb\u884c\u540c\u6b65<\/p>\n<h4>\u4f7f\u7528Sentinel\u505a\u81ea\u52a8failover<\/h4>\n<p>Redis\u7684\u4e3b\u4ece\u590d\u5236\u529f\u80fd\u672c\u8eab\u53ea\u662f\u505a\u6570\u636e\u540c\u6b65\uff0c\u5e76\u4e0d\u63d0\u4f9b\u76d1\u63a7\u548c\u81ea\u52a8failover\u80fd\u529b\uff0c\u8981\u901a\u8fc7\u4e3b\u4ece\u590d\u5236\u529f\u80fd\u6765\u5b9e\u73b0Redis\u7684\u9ad8\u53ef\u7528\uff0c\u8fd8\u9700\u8981\u5f15\u5165\u4e00\u4e2a\u7ec4\u4ef6\uff1aRedis Sentinel<\/p>\n<p>Redis Sentinel\u662fRedis\u5b98\u65b9\u5f00\u53d1\u7684\u76d1\u63a7\u7ec4\u4ef6\uff0c\u53ef\u4ee5\u76d1\u63a7Redis\u5b9e\u4f8b\u7684\u72b6\u6001\uff0c\u901a\u8fc7Master\u8282\u70b9\u81ea\u52a8\u53d1\u73b0Slave\u8282\u70b9\uff0c\u5e76\u5728\u76d1\u6d4b\u5230Master\u8282\u70b9\u5931\u6548\u65f6\u9009\u4e3e\u51fa\u4e00\u4e2a\u65b0\u7684Master\uff0c\u5e76\u5411\u6240\u6709Redis\u5b9e\u4f8b\u63a8\u9001\u65b0\u7684\u4e3b\u4ece\u914d\u7f6e\u3002<\/p>\n<p>Redis Sentinel\u9700\u8981\u81f3\u5c11\u90e8\u7f723\u4e2a\u5b9e\u4f8b\u624d\u80fd\u5f62\u6210\u9009\u4e3e\u5173\u7cfb\u3002<\/p>\n<p>\u5173\u952e\u914d\u7f6e\uff1a<\/p>\n<pre class=\"hljs smali\"><code class=\"smali hljs yaml\"><span class=\"hljs-string\">sentinel<\/span><span class=\"hljs-built_in\"> <span class=\"hljs-string\">monitor<\/span> <span class=\"hljs-string\">mymaster<\/span> <span class=\"hljs-number\">127.0<\/span><span class=\"hljs-number\">.0<\/span><span class=\"hljs-number\">.1<\/span> <span class=\"hljs-number\">6379 <\/span><span class=\"hljs-number\">2<\/span>  <span class=\"hljs-comment\">#Master\u5b9e\u4f8b\u7684IP\u3001\u7aef\u53e3\uff0c\u4ee5\u53ca\u9009\u4e3e\u9700\u8981\u7684\u8d5e\u6210\u7968\u6570\r\n<span class=\"hljs-string\">sentinel<\/span> <span class=\"hljs-string\">down-after-milliseconds<\/span> <span class=\"hljs-string\">mymaster<\/span> <span class=\"hljs-number\">60000<\/span>  #\u591a\u957f\u65f6\u95f4\u6ca1\u6709\u54cd\u5e94\u89c6\u4e3aMaster\u5931\u6548\r\n<span class=\"hljs-string\">sentinel<\/span> <span class=\"hljs-string\">failover-timeout<\/span> <span class=\"hljs-string\">mymaster<\/span> <span class=\"hljs-number\">180000<\/span>  #\u4e24\u6b21failover\u5c1d\u8bd5\u95f4\u7684\u95f4\u9694\u65f6\u957f\r\n<span class=\"hljs-string\">sentinel<\/span> <span class=\"hljs-string\">parallel-syncs<\/span> <span class=\"hljs-string\">mymaster<\/span> <span class=\"hljs-number\">1<\/span>  #\u5982\u679c\u6709\u591a\u4e2aSlave\uff0c\u53ef\u4ee5\u901a\u8fc7\u6b64\u914d\u7f6e\u6307\u5b9a\u540c\u65f6\u4ece\u65b0Master\u8fdb\u884c\u6570\u636e\u540c\u6b65\u7684Slave\u6570\uff0c\u907f\u514d\u6240\u6709Slave\u540c\u65f6\u8fdb\u884c\u6570\u636e\u540c\u6b65\u5bfc\u81f4\u67e5\u8be2\u670d\u52a1\u4e5f\u4e0d\u53ef\u7528<\/span><\/span><\/code><\/pre>\n<p>\u53e6\u5916\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cRedis Sentinel\u5b9e\u73b0\u7684\u81ea\u52a8failover\u4e0d\u662f\u5728\u540c\u4e00\u4e2aIP\u548c\u7aef\u53e3\u4e0a\u5b8c\u6210\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\u81ea\u52a8failover\u4ea7\u751f\u7684\u65b0Master\u63d0\u4f9b\u670d\u52a1\u7684IP\u548c\u7aef\u53e3\u4e0e\u4e4b\u524d\u7684Master\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u6240\u4ee5\u8981\u5b9e\u73b0HA\uff0c\u8fd8\u8981\u6c42\u5ba2\u6237\u7aef\u5fc5\u987b\u652f\u6301Sentinel\uff0c\u80fd\u591f\u4e0eSentinel\u4ea4\u4e92\u83b7\u5f97\u65b0Master\u7684\u4fe1\u606f\u624d\u884c\u3002<\/p>\n<h3>\u96c6\u7fa4\u5206\u7247<\/h3>\n<p>\u4e3a\u4f55\u8981\u505a\u96c6\u7fa4\u5206\u7247\uff1a<\/p>\n<ul>\n<li>Redis\u4e2d\u5b58\u50a8\u7684\u6570\u636e\u91cf\u5927\uff0c\u4e00\u53f0\u4e3b\u673a\u7684\u7269\u7406\u5185\u5b58\u5df2\u7ecf\u65e0\u6cd5\u5bb9\u7eb3<\/li>\n<li>Redis\u7684\u5199\u8bf7\u6c42\u5e76\u53d1\u91cf\u5927\uff0c\u4e00\u4e2aRedis\u5b9e\u4f8b\u4ee5\u65e0\u6cd5\u627f\u8f7d<\/li>\n<\/ul>\n<p>\u5f53\u4e0a\u8ff0\u4e24\u4e2a\u95ee\u9898\u51fa\u73b0\u65f6\uff0c\u5c31\u5fc5\u987b\u8981\u5bf9Redis\u8fdb\u884c\u5206\u7247\u4e86\u3002<br \/>\nRedis\u7684\u5206\u7247\u65b9\u6848\u6709\u5f88\u591a\u79cd\uff0c\u4f8b\u5982\u5f88\u591aRedis\u7684\u5ba2\u6237\u7aef\u90fd\u81ea\u884c\u5b9e\u73b0\u4e86\u5206\u7247\u529f\u80fd\uff0c\u4e5f\u6709\u5411Twemproxy\u8fd9\u6837\u7684\u4ee5\u4ee3\u7406\u65b9\u5f0f\u5b9e\u73b0\u7684Redis\u5206\u7247\u65b9\u6848\u3002\u7136\u800c\u9996\u9009\u7684\u65b9\u6848\u8fd8\u5e94\u8be5\u662fRedis\u5b98\u65b9\u57283.0\u7248\u672c\u4e2d\u63a8\u51fa\u7684Redis Cluster\u5206\u7247\u65b9\u6848\u3002<\/p>\n<p>\u672c\u6587\u4e0d\u4f1a\u5bf9Redis Cluster\u7684\u5177\u4f53\u5b89\u88c5\u548c\u90e8\u7f72\u7ec6\u8282\u8fdb\u884c\u4ecb\u7ecd\uff0c\u91cd\u70b9\u4ecb\u7ecdRedis Cluster\u5e26\u6765\u7684\u597d\u5904\u4e0e\u5f0a\u7aef\u3002<\/p>\n<h4>Redis Cluster\u7684\u80fd\u529b<\/h4>\n<ul>\n<li>\u80fd\u591f\u81ea\u52a8\u5c06\u6570\u636e\u5206\u6563\u5728\u591a\u4e2a\u8282\u70b9\u4e0a<\/li>\n<li>\u5f53\u8bbf\u95ee\u7684key\u4e0d\u5728\u5f53\u524d\u5206\u7247\u4e0a\u65f6\uff0c\u80fd\u591f\u81ea\u52a8\u5c06\u8bf7\u6c42\u8f6c\u53d1\u81f3\u6b63\u786e\u7684\u5206\u7247<\/li>\n<li>\u5f53\u96c6\u7fa4\u4e2d\u90e8\u5206\u8282\u70b9\u5931\u6548\u65f6\u4ecd\u80fd\u63d0\u4f9b\u670d\u52a1<\/li>\n<\/ul>\n<p>\u5176\u4e2d\u7b2c\u4e09\u70b9\u662f\u57fa\u4e8e\u4e3b\u4ece\u590d\u5236\u6765\u5b9e\u73b0\u7684\uff0cRedis Cluster\u7684\u6bcf\u4e2a\u6570\u636e\u5206\u7247\u90fd\u91c7\u7528\u4e86\u4e3b\u4ece\u590d\u5236\u7684\u7ed3\u6784\uff0c\u539f\u7406\u548c\u524d\u6587\u6240\u8ff0\u7684\u4e3b\u4ece\u590d\u5236\u5b8c\u5168\u4e00\u81f4\uff0c\u552f\u4e00\u7684\u533a\u522b\u662f\u7701\u53bb\u4e86Redis Sentinel\u8fd9\u4e00\u989d\u5916\u7684\u7ec4\u4ef6\uff0c\u7531Redis Cluster\u8d1f\u8d23\u8fdb\u884c\u4e00\u4e2a\u5206\u7247\u5185\u90e8\u7684\u8282\u70b9\u76d1\u63a7\u548c\u81ea\u52a8failover\u3002<\/p>\n<h4>Redis Cluster\u5206\u7247\u539f\u7406<\/h4>\n<p>Redis Cluster\u4e2d\u5171\u670916384\u4e2ahash slot\uff0cRedis\u4f1a\u8ba1\u7b97\u6bcf\u4e2akey\u7684CRC16\uff0c\u5c06\u7ed3\u679c\u4e0e16384\u53d6\u6a21\uff0c\u6765\u51b3\u5b9a\u8be5key\u5b58\u50a8\u5728\u54ea\u4e00\u4e2ahash slot\u4e2d\uff0c\u540c\u65f6\u9700\u8981\u6307\u5b9aRedis Cluster\u4e2d\u6bcf\u4e2a\u6570\u636e\u5206\u7247\u8d1f\u8d23\u7684Slot\u6570\u3002Slot\u7684\u5206\u914d\u5728\u4efb\u4f55\u65f6\u95f4\u70b9\u90fd\u53ef\u4ee5\u8fdb\u884c\u91cd\u65b0\u5206\u914d\u3002<\/p>\n<p>\u5ba2\u6237\u7aef\u5728\u5bf9key\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u65f6\uff0c\u53ef\u4ee5\u8fde\u63a5Cluster\u4e2d\u7684\u4efb\u610f\u4e00\u4e2a\u5206\u7247\uff0c\u5982\u679c\u64cd\u4f5c\u7684key\u4e0d\u5728\u6b64\u5206\u7247\u8d1f\u8d23\u7684Slot\u8303\u56f4\u5185\uff0cRedis Cluster\u4f1a\u81ea\u52a8\u5c06\u8bf7\u6c42\u91cd\u5b9a\u5411\u5230\u6b63\u786e\u7684\u5206\u7247\u4e0a\u3002<\/p>\n<h4>hash tags<\/h4>\n<p>\u5728\u57fa\u7840\u7684\u5206\u7247\u539f\u5219\u4e0a\uff0cRedis\u8fd8\u652f\u6301hash tags\u529f\u80fd\uff0c\u4ee5hash tags\u8981\u6c42\u7684\u683c\u5f0f\u660e\u660e\u7684key\uff0c\u5c06\u4f1a\u786e\u4fdd\u8fdb\u5165\u540c\u4e00\u4e2aSlot\u4e2d\u3002\u4f8b\u5982\uff1a{uiv}user:1000\u548c{uiv}user:1001\u62e5\u6709\u540c\u6837\u7684hash tag {uiv}\uff0c\u4f1a\u4fdd\u5b58\u5728\u540c\u4e00\u4e2aSlot\u4e2d\u3002<\/p>\n<p>\u4f7f\u7528Redis Cluster\u65f6\uff0cpipelining\u3001\u4e8b\u52a1\u548cLUA Script\u529f\u80fd\u6d89\u53ca\u7684key\u5fc5\u987b\u5728\u540c\u4e00\u4e2a\u6570\u636e\u5206\u7247\u4e0a\uff0c\u5426\u5219\u5c06\u4f1a\u8fd4\u56de\u9519\u8bef\u3002\u5982\u8981\u5728Redis Cluster\u4e2d\u4f7f\u7528\u4e0a\u8ff0\u529f\u80fd\uff0c\u5c31\u5fc5\u987b\u901a\u8fc7hash tags\u6765\u786e\u4fdd\u4e00\u4e2apipeline\u6216\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u64cd\u4f5c\u7684\u6240\u6709key\u90fd\u4f4d\u4e8e\u540c\u4e00\u4e2aSlot\u4e2d\u3002<\/p>\n<blockquote><p>\u6709\u4e00\u4e9b\u5ba2\u6237\u7aef\uff08\u5982Redisson\uff09\u5b9e\u73b0\u4e86\u96c6\u7fa4\u5316\u7684pipelining\u64cd\u4f5c\uff0c\u53ef\u4ee5\u81ea\u52a8\u5c06\u4e00\u4e2apipeline\u91cc\u7684\u547d\u4ee4\u6309key\u6240\u5728\u7684\u5206\u7247\u8fdb\u884c\u5206\u7ec4\uff0c\u5206\u522b\u53d1\u5230\u4e0d\u540c\u7684\u5206\u7247\u4e0a\u6267\u884c\u3002\u4f46\u662fRedis\u4e0d\u652f\u6301\u8de8\u5206\u7247\u7684\u4e8b\u52a1\uff0c\u4e8b\u52a1\u548cLUA Script\u8fd8\u662f\u5fc5\u987b\u9075\u5faa\u6240\u6709key\u5728\u4e00\u4e2a\u5206\u7247\u4e0a\u7684\u89c4\u5219\u8981\u6c42\u3002<\/p><\/blockquote>\n<h3>\u4e3b\u4ece\u590d\u5236 vs \u96c6\u7fa4\u5206\u7247<\/h3>\n<p>\u5728\u8bbe\u8ba1\u8f6f\u4ef6\u67b6\u6784\u65f6\uff0c\u8981\u5982\u4f55\u5728\u4e3b\u4ece\u590d\u5236\u548c\u96c6\u7fa4\u5206\u7247\u4e24\u79cd\u90e8\u7f72\u65b9\u6848\u4e2d\u53d6\u820d\u5462\uff1f<\/p>\n<p>\u4ece\u5404\u4e2a\u65b9\u9762\u770b\uff0cRedis Cluster\u90fd\u662f\u4f18\u4e8e\u4e3b\u4ece\u590d\u5236\u7684\u65b9\u6848<\/p>\n<ul>\n<li>Redis Cluster\u80fd\u591f\u89e3\u51b3\u5355\u8282\u70b9\u4e0a\u6570\u636e\u91cf\u8fc7\u5927\u7684\u95ee\u9898<\/li>\n<li>Redis Cluster\u80fd\u591f\u89e3\u51b3\u5355\u8282\u70b9\u8bbf\u95ee\u538b\u529b\u8fc7\u5927\u7684\u95ee\u9898<\/li>\n<li>Redis Cluster\u5305\u542b\u4e86\u4e3b\u4ece\u590d\u5236\u7684\u80fd\u529b<\/li>\n<\/ul>\n<p>\u90a3\u662f\u4e0d\u662f\u4ee3\u8868Redis Cluster\u6c38\u8fdc\u662f\u4f18\u4e8e\u4e3b\u4ece\u590d\u5236\u7684\u9009\u62e9\u5462\uff1f<\/p>\n<p>\u5e76\u4e0d\u662f\u3002<\/p>\n<p>\u8f6f\u4ef6\u67b6\u6784\u6c38\u8fdc\u4e0d\u662f\u8d8a\u590d\u6742\u8d8a\u597d\uff0c\u590d\u6742\u7684\u67b6\u6784\u5728\u5e26\u6765\u663e\u8457\u597d\u5904\u7684\u540c\u65f6\uff0c\u4e00\u5b9a\u4e5f\u4f1a\u5e26\u6765\u76f8\u5e94\u7684\u5f0a\u7aef\u3002\u91c7\u7528Redis Cluster\u7684\u5f0a\u7aef\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u7ef4\u62a4\u96be\u5ea6\u589e\u52a0\u3002\u5728\u4f7f\u7528Redis Cluster\u65f6\uff0c\u9700\u8981\u7ef4\u62a4\u7684Redis\u5b9e\u4f8b\u6570\u500d\u589e\uff0c\u9700\u8981\u76d1\u63a7\u7684\u4e3b\u673a\u6570\u91cf\u4e5f\u76f8\u5e94\u589e\u52a0\uff0c\u6570\u636e\u5907\u4efd\/\u6301\u4e45\u5316\u7684\u590d\u6742\u5ea6\u4e5f\u4f1a\u589e\u52a0\u3002\u540c\u65f6\u5728\u8fdb\u884c\u5206\u7247\u7684\u589e\u51cf\u64cd\u4f5c\u65f6\uff0c\u8fd8\u9700\u8981\u8fdb\u884creshard\u64cd\u4f5c\uff0c\u8fdc\u6bd4\u4e3b\u4ece\u6a21\u5f0f\u4e0b\u589e\u52a0\u4e00\u4e2aSlave\u7684\u590d\u6742\u5ea6\u8981\u9ad8\u3002<\/li>\n<li>\u5ba2\u6237\u7aef\u8d44\u6e90\u6d88\u8017\u589e\u52a0\u3002\u5f53\u5ba2\u6237\u7aef\u4f7f\u7528\u8fde\u63a5\u6c60\u65f6\uff0c\u9700\u8981\u4e3a\u6bcf\u4e00\u4e2a\u6570\u636e\u5206\u7247\u7ef4\u62a4\u4e00\u4e2a\u8fde\u63a5\u6c60\uff0c\u5ba2\u6237\u7aef\u540c\u65f6\u9700\u8981\u4fdd\u6301\u7684\u8fde\u63a5\u6570\u6210\u500d\u589e\u591a\uff0c\u52a0\u5927\u4e86\u5ba2\u6237\u7aef\u672c\u8eab\u548c\u64cd\u4f5c\u7cfb\u7edf\u8d44\u6e90\u7684\u6d88\u8017\u3002<\/li>\n<li>\u6027\u80fd\u4f18\u5316\u96be\u5ea6\u589e\u52a0\u3002\u4f60\u53ef\u80fd\u9700\u8981\u5728\u591a\u4e2a\u5206\u7247\u4e0a\u67e5\u770bSlow Log\u548cSwap\u65e5\u5fd7\u624d\u80fd\u5b9a\u4f4d\u6027\u80fd\u95ee\u9898\u3002<\/li>\n<li>\u4e8b\u52a1\u548cLUA Script\u7684\u4f7f\u7528\u6210\u672c\u589e\u52a0\u3002\u5728Redis Cluster\u4e2d\u4f7f\u7528\u4e8b\u52a1\u548cLUA Script\u7279\u6027\u6709\u4e25\u683c\u7684\u9650\u5236\u6761\u4ef6\uff0c\u4e8b\u52a1\u548cScript\u4e2d\u64cd\u4f5c\u7684key\u5fc5\u987b\u4f4d\u4e8e\u540c\u4e00\u4e2a\u5206\u7247\u4e0a\uff0c\u8fd9\u5c31\u4f7f\u5f97\u5728\u5f00\u53d1\u65f6\u5fc5\u987b\u5bf9\u76f8\u5e94\u573a\u666f\u4e0b\u6d89\u53ca\u7684key\u8fdb\u884c\u989d\u5916\u7684\u89c4\u5212\u548c\u89c4\u8303\u8981\u6c42\u3002\u5982\u679c\u5e94\u7528\u7684\u573a\u666f\u4e2d\u5927\u91cf\u6d89\u53ca\u4e8b\u52a1\u548cScript\u7684\u4f7f\u7528\uff0c\u5982\u4f55\u5728\u4fdd\u8bc1\u8fd9\u4e24\u4e2a\u529f\u80fd\u7684\u6b63\u5e38\u8fd0\u4f5c\u524d\u63d0\u4e0b\u628a\u6570\u636e\u5e73\u5747\u5206\u5230\u591a\u4e2a\u6570\u636e\u5206\u7247\u4e2d\u5c31\u4f1a\u6210\u4e3a\u96be\u70b9\u3002<\/li>\n<\/ul>\n<p>\u6240\u4ee5\u8bf4\uff0c\u5728\u4e3b\u4ece\u590d\u5236\u548c\u96c6\u7fa4\u5206\u7247\u4e24\u4e2a\u65b9\u6848\u4e2d\u505a\u51fa\u9009\u62e9\u65f6\uff0c\u5e94\u8be5\u4ece\u5e94\u7528\u8f6f\u4ef6\u7684\u529f\u80fd\u7279\u6027\u3001\u6570\u636e\u548c\u8bbf\u95ee\u91cf\u7ea7\u3001\u672a\u6765\u53d1\u5c55\u89c4\u5212\u7b49\u65b9\u9762\u7efc\u5408\u8003\u8651\uff0c\u53ea\u5728<strong>\u786e\u5b9e\u6709\u5fc5\u8981<\/strong>\u5f15\u5165\u6570\u636e\u5206\u7247\u65f6\u518d\u4f7f\u7528Redis Cluster\u3002<br \/>\n\u4e0b\u9762\u662f\u4e00\u4e9b\u5efa\u8bae\uff1a<\/p>\n<ol>\n<li>\u9700\u8981\u5728Redis\u4e2d\u5b58\u50a8\u7684\u6570\u636e\u6709\u591a\u5927\uff1f\u672a\u67652\u5e74\u5185\u53ef\u80fd\u53d1\u5c55\u4e3a\u591a\u5927\uff1f\u8fd9\u4e9b\u6570\u636e\u662f\u5426\u90fd\u9700\u8981\u957f\u671f\u4fdd\u5b58\uff1f\u662f\u5426\u53ef\u4ee5\u4f7f\u7528LRU\u7b97\u6cd5\u8fdb\u884c\u975e\u70ed\u70b9\u6570\u636e\u7684\u6dd8\u6c70\uff1f\u7efc\u5408\u8003\u8651\u524d\u9762\u51e0\u4e2a\u56e0\u7d20\uff0c\u8bc4\u4f30\u51faRedis\u9700\u8981\u4f7f\u7528\u7684\u7269\u7406\u5185\u5b58\u3002<\/li>\n<li>\u7528\u4e8e\u90e8\u7f72Redis\u7684\u4e3b\u673a\u7269\u7406\u5185\u5b58\u6709\u591a\u5927\uff1f\u6709\u591a\u5c11\u53ef\u4ee5\u5206\u914d\u7ed9Redis\u4f7f\u7528\uff1f\u5bf9\u6bd4(1)\u4e2d\u7684\u5185\u5b58\u9700\u6c42\u8bc4\u4f30\uff0c\u662f\u5426\u8db3\u591f\u7528\uff1f<\/li>\n<li>Redis\u9762\u4e34\u7684\u5e76\u53d1\u5199\u538b\u529b\u4f1a\u6709\u591a\u5927\uff1f\u5728\u4e0d\u4f7f\u7528pipelining\u65f6\uff0cRedis\u7684\u5199\u6027\u80fd\u53ef\u4ee5\u8d85\u8fc710\u4e07\u6b21\/\u79d2\uff08\u66f4\u591a\u7684benchmark\u53ef\u4ee5\u53c2\u8003\u00a0<a href=\"https:\/\/redis.io\/topics\/benchmarks\" target=\"_blank\" rel=\"noopener\">https:\/\/redis.io\/topics\/benchmarks<\/a>\u00a0\uff09<\/li>\n<li>\u5728\u4f7f\u7528Redis\u65f6\uff0c\u662f\u5426\u4f1a\u4f7f\u7528\u5230pipelining\u548c\u4e8b\u52a1\u529f\u80fd\uff1f\u4f7f\u7528\u7684\u573a\u666f\u591a\u4e0d\u591a\uff1f<\/li>\n<\/ol>\n<p>\u7efc\u5408\u4e0a\u9762\u51e0\u70b9\u8003\u8651\uff0c\u5982\u679c\u5355\u53f0\u4e3b\u673a\u7684\u53ef\u7528\u7269\u7406\u5185\u5b58\u5b8c\u5168\u8db3\u4ee5\u652f\u6491\u5bf9Redis\u7684\u5bb9\u91cf\u9700\u6c42\uff0c\u4e14Redis\u9762\u4e34\u7684\u5e76\u53d1\u5199\u538b\u529b\u8ddd\u79bbBenchmark\u503c\u8fd8\u5c1a\u6709\u8ddd\u79bb\uff0c\u5efa\u8bae\u91c7\u7528\u4e3b\u4ece\u590d\u5236\u7684\u67b6\u6784\uff0c\u53ef\u4ee5\u7701\u53bb\u5f88\u591a\u4e0d\u5fc5\u8981\u7684\u9ebb\u70e6\u3002\u540c\u65f6\uff0c\u5982\u679c\u5e94\u7528\u4e2d\u5927\u91cf\u4f7f\u7528pipelining\u548c\u4e8b\u52a1\uff0c\u4e5f\u5efa\u8bae\u5c3d\u53ef\u80fd\u9009\u62e9\u4e3b\u4ece\u590d\u5236\u67b6\u6784\uff0c\u53ef\u4ee5\u51cf\u5c11\u8bbe\u8ba1\u548c\u5f00\u53d1\u65f6\u7684\u590d\u6742\u5ea6\u3002<\/p>\n<h2>Redis Java\u5ba2\u6237\u7aef\u7684\u9009\u62e9<\/h2>\n<p>Redis\u7684Java\u5ba2\u6237\u7aef\u5f88\u591a\uff0c\u5b98\u65b9\u63a8\u8350\u7684\u6709\u4e09\u79cd\uff1aJedis\u3001Redisson\u548clettuce\u3002<\/p>\n<p>\u5728\u8fd9\u91cc\u5bf9Jedis\u548cRedisson\u8fdb\u884c\u5bf9\u6bd4\u4ecb\u7ecd<\/p>\n<p>Jedis\uff1a<\/p>\n<ul>\n<li>\u8f7b\u91cf\uff0c\u7b80\u6d01\uff0c\u4fbf\u4e8e\u96c6\u6210\u548c\u6539\u9020<\/li>\n<li>\u652f\u6301\u8fde\u63a5\u6c60<\/li>\n<li>\u652f\u6301pipelining\u3001\u4e8b\u52a1\u3001LUA Scripting\u3001Redis Sentinel\u3001Redis Cluster<\/li>\n<li>\u4e0d\u652f\u6301\u8bfb\u5199\u5206\u79bb\uff0c\u9700\u8981\u81ea\u5df1\u5b9e\u73b0<\/li>\n<li>\u6587\u6863\u5dee\uff08\u771f\u7684\u5f88\u5dee\uff0c\u51e0\u4e4e\u6ca1\u6709\u2026\u2026\uff09<\/li>\n<\/ul>\n<p>Redisson\uff1a<\/p>\n<ul>\n<li>\u57fa\u4e8eNetty\u5b9e\u73b0\uff0c\u91c7\u7528\u975e\u963b\u585eIO\uff0c\u6027\u80fd\u9ad8<\/li>\n<li>\u652f\u6301\u5f02\u6b65\u8bf7\u6c42<\/li>\n<li>\u652f\u6301\u8fde\u63a5\u6c60<\/li>\n<li>\u652f\u6301pipelining\u3001LUA Scripting\u3001Redis Sentinel\u3001Redis Cluster<\/li>\n<li>\u4e0d\u652f\u6301\u4e8b\u52a1\uff0c\u5b98\u65b9\u5efa\u8bae\u4ee5LUA Scripting\u4ee3\u66ff\u4e8b\u52a1<\/li>\n<li>\u652f\u6301\u5728Redis Cluster\u67b6\u6784\u4e0b\u4f7f\u7528pipelining<\/li>\n<li>\u652f\u6301\u8bfb\u5199\u5206\u79bb\uff0c\u652f\u6301\u8bfb\u8d1f\u8f7d\u5747\u8861\uff0c\u5728\u4e3b\u4ece\u590d\u5236\u548cRedis Cluster\u67b6\u6784\u4e0b\u90fd\u53ef\u4ee5\u4f7f\u7528<\/li>\n<li>\u5185\u5efaTomcat Session Manager\uff0c\u4e3aTomcat 6\/7\/8\u63d0\u4f9b\u4e86\u4f1a\u8bdd\u5171\u4eab\u529f\u80fd<\/li>\n<li>\u53ef\u4ee5\u4e0eSpring Session\u96c6\u6210\uff0c\u5b9e\u73b0\u57fa\u4e8eRedis\u7684\u4f1a\u8bdd\u5171\u4eab<\/li>\n<li>\u6587\u6863\u8f83\u4e30\u5bcc\uff0c\u6709\u4e2d\u6587\u6587\u6863<\/li>\n<\/ul>\n<p>\u5bf9\u4e8eJedis\u548cRedisson\u7684\u9009\u62e9\uff0c\u540c\u6837\u5e94\u9075\u5faa\u524d\u8ff0\u7684\u539f\u7406\uff0c\u5c3d\u7ba1Jedis\u6bd4\u8d77Redisson\u6709\u5404\u79cd\u5404\u6837\u7684\u4e0d\u8db3\uff0c\u4f46\u4e5f\u5e94\u8be5\u5728\u9700\u8981\u4f7f\u7528Redisson\u7684\u9ad8\u7ea7\u7279\u6027\u65f6\u518d\u9009\u7528Redisson\uff0c\u907f\u514d\u9020\u6210\u4e0d\u5fc5\u8981\u7684\u7a0b\u5e8f\u590d\u6742\u5ea6\u63d0\u5347\u3002<\/p>\n<p>Jedis\uff1a<br \/>\ngithub\uff1a<a href=\"https:\/\/github.com\/xetorthio\/jedis\" target=\"_blank\" rel=\"noopener\">https:\/\/github.com\/xetorthio\/jedis<\/a><br \/>\n\u6587\u6863\uff1a<a href=\"https:\/\/github.com\/xetorthio\/jedis\/wiki\" target=\"_blank\" rel=\"noopener\">https:\/\/github.com\/xetorthio\/jedis\/wiki<\/a><\/p>\n<p>Redisson\uff1a<br \/>\ngithub\uff1a<a href=\"https:\/\/github.com\/redisson\/redisson\" target=\"_blank\" rel=\"noopener\">https:\/\/github.com\/redisson\/redisson<\/a><br \/>\n\u6587\u6863\uff1a<a href=\"https:\/\/github.com\/redisson\/redisson\/wiki\" target=\"_blank\" rel=\"noopener\">https:\/\/github.com\/redisson\/redisson\/wiki<\/a><\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u539f\u6587\u5730\u5740 &nbsp; \u672c\u6587\u5c06\u4eceRedi<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[118],"class_list":["post-5595","post","type-post","status-publish","format-standard","hentry","tag-02-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/5595","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=5595"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/5595\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=5595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=5595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=5595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}