{"id":1537,"date":"2018-07-23T16:35:45","date_gmt":"2018-07-23T08:35:45","guid":{"rendered":"https:\/\/damogame.cn:15443\/wordpress\/?p=1537"},"modified":"2018-07-23T16:35:45","modified_gmt":"2018-07-23T08:35:45","slug":"%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3redis","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/1537","title":{"rendered":"\u6df1\u5165\u4e86\u89e3Redis"},"content":{"rendered":"<div class=\"article-title-box\">\n<h1 class=\"title-article\">\u6df1\u5165\u4e86\u89e3Redis<\/h1>\n<\/div>\n<div class=\"article-info-box\">\n<div class=\"article-bar-top d-flex\"><span class=\"time\">2016\u5e7408\u670816\u65e5 22:56:27<\/span><\/p>\n<div class=\"float-right\"><span class=\"read-count\">\u9605\u8bfb\u6570\uff1a7221<\/span><\/div>\n<\/div>\n<\/div>\n<article>\n<div id=\"article_content\" class=\"article_content clearfix csdn-tracking-statistics\" data-pid=\"blog\" data-mod=\"popu_307\" data-dsm=\"post\">\n<div class=\"htmledit_views\">\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182229158?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<p>\u672c\u6587\u5c06\u4e3b\u8981\u4eceRedis\u9002\u7528\u8303\u56f4\uff0c\u4e0eMemcached, Java\u5bb9\u5668\u5bf9\u6bd4\uff0c\u6838\u5fc3\u529f\u80fd\uff08Pipelining\uff0c<\/p>\n<p>Pub\/Sub\uff0cLRU\uff0cTransactions\uff0c Persistence\uff0c Replication\uff09\uff0c\u5206\u5e03\u5f0f\u67b6\u6784\u8bbe\u8ba1\uff0cCluster\uff0c<\/p>\n<p>\u5185\u90e8\u5b9e\u73b0\u53ca\u6570\u636e\u7ed3\u6784\u6765\u6df1\u5165\u4e86\u89e3Redis\uff0c\u9002\u7528\u4e8e\u5df2\u7ecf\u4e86\u89e3\u5e76\u6709Redis\u64cd\u4f5c\u7ecf\u9a8c\u4e4b\u7a0b\u5e8f\u5458\u3002<\/p>\n<p><strong>1. Redis\u4ecb\u7ecd\u00a0<\/strong><\/p>\n<p>REmote\u00a0DIctionary\u00a0Server\uff08Redis\uff09\u662f\u4e00\u4e2a\u5f00\u6e90\uff08BSD\u534f\u8bae\uff09\u7684\uff0c\u4f7f\u7528ANSI C\u8bed\u8a00\u7f16\u5199\uff0c<\/p>\n<p>\u57fa\u4e8e\u5185\u5b58in-memory\u6570\u636e\u5b58\u50a8\u7ed3\u6784\uff0c\u53ef\u4ee5\u5f53\u4f5cNoSQL\u6570\u636e\u5e93\uff0c\u7f13\u5b58\u548c\u6d88\u606f\u4ee3\u7406\u6765\u4f7f\u7528\u3002\u652f\u6301<\/p>\n<p>\u591a\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5305\u62ecstring, hashes, lists, set, sorted sets, bitmaps, hyperloglogs\u7b49\u3002\u6b64\u5916\uff0c<\/p>\n<p>Redis\u8fd8\u652f\u6301\u5185\u7f6ereplication, LRU\u00a0(Least Recently Used\u00a0)\u7b97\u6cd5\u7ba1\u7406\u7f13\u5b58\uff0cPub\/Sub\uff0c\u90e8\u5206<\/p>\n<p>\u539f\u5b50\u6027\u64cd\u4f5c\uff0c\u7b80\u5355\u4e8b\u52a1\u652f\u6301\uff0c\u57fa\u4e8e\u78c1\u76d8\u7684\u6570\u636e\u6301\u4e45\u5316\u4ee5\u53ca3.0\u5b9e\u73b0\u4e86\u5206\u5e03\u5f0fRedis\u652f\u6301HA\uff0c<\/p>\n<p>\u4e45\u8fdd\u7684Redis Cluster\u3002\u4ece2013\u5e745\u6708\u5f00\u59cb\uff0cRedis\u7684\u5f00\u53d1\u7531Pivotal\u516c\u53f8\u4e3b\u6301\u3002<\/p>\n<p><strong>2. Redis\u4e4b\u7236Antirez<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182313680?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<p>\u996e\u6c34\u601d\u6e90\uff0cRedis\u4e4b\u7236Salvatore Sanfilippo\uff0c \u4e00\u540d\u6765\u81ea\u610f\u5927\u5229\u897f\u897f\u91cc\u5c9b\uff08Sicily\uff09\u51fa\u751f\u4e8e<\/p>\n<p>1977\u5e74\u7684\u7a0b\u5e8f\u5458\uff0c\u7f51\u540dAntirez, \u5e38\u5c45\u4f4f\u4e8eCatania\u3002Antirez\u7684IT\u804c\u4e1a\u751f\u6daf\u5f00\u59cb\u4e8e\u7cfb\u7edf\u7ba1\u7406\u5458\uff0c<\/p>\n<p>IT\u5b89\u5168\uff0c\u5e76\u4e8eWeb 2.0\u7684\u5e74\u4ee3\u521b\u7acb\u4e00\u5bb6web\u7f51\u7edc\u516c\u53f8\uff0c\u4e3b\u8981\u5f00\u53d1\u793e\u4ea4\u5e94\u7528\u3002\u4e4b\u540e\uff0c\u5728\u4e00\u6b21\u5b9e\u65f6<\/p>\n<p>\u7edf\u8ba1\u5206\u6790\u4ea7\u54c1\u5f00\u53d1\u4e2d\uff0c\u4e3a\u4e86\u8282\u7701\u6210\u672c\u4ee5\u53ca\u9ad8\u6027\u80fd\u6269\u5c55\u6027\uff0cAntirez\u610f\u8bc6\u5230\u9700\u8981\u4e00\u79cd\u652f\u6301\u591a\u79cd\u590d\u6742<\/p>\n<p>\u6570\u636e\u7ed3\u6784\u7684in-memory\u6570\u636e\u5e93\uff0c\u5e76\u4e14\u652f\u6301\u5feb\u901f\u64cd\u4f5c\u3002Redis\u5c31\u6b64\u8bde\u751f\u5e76\u5f00\u6e90\u3002\u4e4b\u540e\uff0cVM\u6167\u773c\u76f8<\/p>\n<p>\u4e2d\u4e86Redis, \u5e76\u96c7\u4f63Antirez\u53bb\u5168\u804c\u5f00\u53d1\uff0c\u800c\u4e4b\u540e\u53c8\u884d\u751f\u51faPivotal\u516c\u53f8\uff0cAntirez\u5219\u7ee7\u7eed\u4e3b\u6301Redis<\/p>\n<p>\u5f00\u53d1\u3002<\/p>\n<p><strong>3. Redis\u9002\u7528\u573a\u666f\u00a0<\/strong>Redis\u901a\u5e38\u88ab\u5927\u5bb6\u79f0\u4e3a\u6570\u636e\u7ed3\u6784\u670d\u52a1\u5668\uff0c\u4e00\u79cd\u8f7b\u91cf\u7ea7K\/V\u6570\u636e\u5b58\u50a8\uff0c\u5982\u6211\u4eec\u4e0a\u6587\u4ecb\u7ecd\uff0c\u652f\u6301\u4e30\u5bcc<\/p>\n<p>\u7684\u6570\u636e\u7c7b\u578b\u3002Redis\u4ee5\u5176\u901f\u5ea6\u800c\u95fb\u540d\uff0c\u8fd9\u4f7f\u5f97\u5176\u79f0\u4e3a\u67d0\u4e00\u7279\u5b9a\u9886\u57df\u9002\u7528\u7684\u6700\u4f18\u9009\u62e9\u3002<\/p>\n<p>\u90a3\u8bf7\u95ee\u5927\u5bb6\u662f\u5728\u4ec0\u4e48\u573a\u666f\u4e0b\u9009\u7528Redis\u5462\uff1f\u6709\u5c0f\u4f19\u4f34\u8bf4\u5927\u591a\u6570\u60c5\u51b5\u662f\u5927\u91cf\u6570\u636e\u9700\u8981\u7f13\u5b58\u5427\u3002<\/p>\n<p>\u90a3\u53c8\u8bf7\u95ee\u8fd9\u79cd\u60c5\u51b5\u4e3a\u4ec0\u4e48\u4e0d\u7528Memcached\u5462\uff1f\u53c8\u6216\u8005\u5e72\u8106\u9009\u62e9Java\u81ea\u5e26\u5bb9\u5668ArrayList, HashMap,<\/p>\n<p>ConcurrentHashMap, HashSet\u5462\uff1f\u6211\u4eec\u5e26\u7740\u8fd9\u4e24\u4e2a\u95ee\u9898\u5f80\u4e0b\u770b\u3002<\/p>\n<p><strong>3.1 \u4e92\u8054\u7f51\/\u793e\u4ea4<br \/>\n<\/strong><\/p>\n<p>Redis\u7684\u7528\u6237\u591a\u4e3a\u4e92\u8054\u7f51\u516c\u53f8\u5982Twitter, Weibo\uff08\u5fae\u535a\uff09, Uber, StackOverflow, Airbnb, Alibaba\u7b49\u3002<\/p>\n<p>\u5bf9\u4e8e\u793e\u4ea4\u7f51\u7ad9Twitter, Weibo\uff0c\u8fd9\u4e9b\u7f51\u7ad9\u4e3b\u8981\u4f7f\u7528Redis\u8fdb\u884c\u9ad8\u6548\u7684\u793e\u4ea4\u5173\u7cfb\u7ba1\u7406\uff0c\u7f13\u5b58\u7528\u6237\u597d\u53cb\uff0c<\/p>\n<p>\u7c89\u4e1d\uff0c\u5173\u6ce8\u7b49\uff0c\u5e76\u4e14\u53ef\u4ee5\u901a\u8fc7Redis\u5185\u7f6e\u6570\u636e\u6a21\u578b\u5feb\u901f\u8ba1\u7b97\u5171\u540c\u597d\u53cb\u7b49\u3002<\/p>\n<p>\u6211\u4eec\u5148\u770b\u5404\u5927\u793e\u4ea4\u7f51\u7ad9Twitter, Weibo\uff08\u5fae\u535a\u662f\u56fd\u5185\u6700\u5927\u7684Redis\u7528\u6237\uff09\u3002\u8fd9\u4e9b\u7f51\u7ad9\u7684\u6bcf\u4e2a\u7528\u6237\u90fd\u6709<\/p>\n<p>\u597d\u53cb\uff0c\u7c89\u4e1d\uff0c\u5173\u6ce8\u7b49\uff0c\u5e76\u4e14\u53ef\u4ee5\u76f8\u4e92\u67e5\u770b\u5171\u540c\u597d\u53cb\u7b49\u3002Redis\u53ef\u4ee5\u7528\u6765\u5e2e\u52a9\u9ad8\u6548\u7ba1\u7406\u8fd9\u4e9b\u793e\u4ea4\u5173\u7cfb\uff0c<\/p>\n<p>\u5982\u6c42\u5171\u540c\u597d\u53cb\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182352352?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u5982\u4e0a\uff0cRedis\u5f88\u65b9\u4fbf\u7684\u4f7f\u7528\u6709\u5e8f\u96c6\u5408\u7684\u4ea4\u96c6\u529f\u80fd\u5b9e\u73b0\u3002\u5176\u4e2duser:100000:follow\u4e3a\u7528\u62371\u7684\u7c89\u4e1d\u5217\u8868\uff0c<\/p>\n<p>user:200000:follow\u4e3a\u7528\u62372\u7684\u7c89\u4e1d\u5217\u8868\uff0cout:100000:200000\u4e3a\u4ea4\u96c6\u5171\u540c\u597d\u53cb\u5217\u8868\u3002<\/p>\n<p>\u53c8\u5982\u53e6\u4e00\u4e2a\u5e38\u7528\u573a\u666f\uff0c\u7535\u5546\u5404\u79cd\u8ba1\u6570\uff0c\u5982\u5546\u54c1\u7ef4\u5ea6\u8ba1\u6570\uff08\u5173\u6ce8\u5ea6\uff0c\u559c\u6b22\u6570\uff0c\u8bc4\u8bba\u6570\uff0c\u6d4f\u89c8\u6570\u7b49\uff09\u3002<\/p>\n<p>\u53ef\u4ee5\u91c7\u7528Redis\u7684Hash\u7c7b\u578b\uff0c\u5e76\u501f\u52a9\u5176\u539f\u5b50\u6027\u64cd\u4f5c\u6765\u7ef4\u62a4\u8ba1\u6570\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182427900?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u7528\u6237\u7ef4\u5ea6\u8ba1\u6570\uff08\u52a8\u6001\uff0c\u5173\u6ce8\u6570\uff0c\u7c89\u4e1d\u6570\uff0c\u53d1\u5e16\u6570\u7b49\uff09<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182443541?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u5f53\u7136\u9664\u4e86\u8fd9\u4e9b\u4e92\u8054\u7f51\u7528\u9014\uff0cRedis\u6700\u5e38\u7528\u7684\u529f\u80fd\u8fd8\u662f\u88ab\u5f53\u4f5c\u7f13\u5b58\u3002\u63d0\u5230\u7f13\u5b58\uff0c\u5927\u5bb6\u5f53\u7136\u4f1a\u60f3\u5230memcached\u3002<\/p>\n<p><strong>Redis v.s. Memcached<\/strong><\/p>\n<ul class=\"list-paddingleft-2\">\n<li>\u6570\u636e\u7c7b\u578b\u4e0e\u64cd\u4f5c\uff1aRedis\u62e5\u6709\u66f4\u591a\u4e30\u5bcc\u7684\u6570\u636e\u7ed3\u6784\u652f\u6301\u4e0e\u64cd\u4f5c\uff0c\u800cMemcached\u5219\u9700\u5ba2\u6237\u7aef\u81ea\u5df1\u5904\u7406\u5e76\u8fdb\u884c\u7f51\u7edc\u4ea4\u4e92<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182509549?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<ul class=\"list-paddingleft-2\">\n<li>\u5185\u5b58\u4f7f\u7528\u7387\uff1a\u7b80\u5355K\/V\u5b58\u50a8\uff0cMemcached\u5185\u5b58\u5229\u7528\u7387\u66f4\u9ad8\uff08\u4f7f\u7528\u4e86slab\u4e0e\u5927\u5c0f\u4e0d\u540c\u7684chunk\u6765\u7ba1\u7406\u5185\u5b58\uff09\uff0c\u800c\u5982\u679c\u91c7\u7528Redis Hash\u6765\u5b58\u50a8\u5219\u5176\u7ec4\u5408\u538b\u7f29\uff0c\u5185\u5b58\u5229\u7528\u7387\u9ad8\u4e8eMemcached<\/li>\n<li>\u6027\u80fd\uff1a\u603b\u4f53\u6765\u8bf4\uff0c\u4e8c\u8005\u6027\u80fd\u63a5\u8fd1\uff1bRedis\u4f7f\u7528\u4e86\u5355\u6838\uff08\u5355\u7ebf\u7a0bIO\u590d\u7528\uff0c\u5c01\u88c5\u4e86AeEvent\u4e8b\u4ef6\u5904\u7406\u6846\u67b6\uff0c\u5b9e\u73b0\u4e86epoll,kqueue,select\uff09\uff0cMemcached\u91c7\u7528\u4e86\u591a\u6838\uff0c\u5404\u6709\u5229\u5f0a\uff1b\u5f53\u6570\u636e\u5927\u4e8e100K\u7684\u65f6\u5019\uff0cMemcached\u6027\u80fd\u9ad8\u4e8eRedis<\/li>\n<li>\u6570\u636e\u6301\u4e45\u5316\uff1aRedis\u652f\u6301\u6570\u636e\u6587\u4ef6\u6301\u4e45\u5316\uff0cRDB\u4e0eAOF\u4e24\u79cd\u7b56\u7565\uff1bMemcached\u5219\u4e0d\u652f\u6301<\/li>\n<li>\u5206\u5e03\u5f0f\uff1aMemcached\u672c\u8eab\u5e76\u4e0d\u652f\u6301\u670d\u52a1\u5668\u7aef\u5206\u5e03\u5f0f\uff0c\u5ba2\u6237\u7aef\u53ea\u80fd\u501f\u52a9\u4e00\u81f4\u6027\u54c8\u5e0c\u5206\u5e03\u5f0f\u7b97\u6cd5\u6765\u5b9e\u73b0Memcached\u5206\u5e03\u5f0f\u5b58\u50a8\uff1b\u5f53\u7136Redis\u4e5f\u662f\u4ece3.0\u7248\u672c\u5f00\u59cb\u624d\u652f\u6301\u670d\u52a1\u5668\u7aefcluster\u7684\uff0c\u91cd\u8981\u7684\u662f\u73b0\u5728\u652f\u6301\u4e86\u3002<\/li>\n<li>\u5176\u4ed6\u65b9\u9762\uff1aRedis\u63d0\u4f9b\u5176\u4ed6\u4e00\u4e9b\u529f\u80fd\uff0c\u5982Pub\/Sub, Queue, \u7b80\u5355Transacation, Replication\u7b49\u3002<\/li>\n<\/ul>\n<p>\u597d\u4e86\uff0c\u5343\u8a00\u4e0d\u62b5\u4e00\u56fe\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182537081?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<p><strong>Redis v.s. HashMap<br \/>\n<\/strong><\/p>\n<p>\u4f5c\u4e3a\u5355\u673a\u6570\u636e\u7f13\u5b58\uff0cJava\u81ea\u5e26\u5bb9\u5668\u4e5f\u662f\u5907\u9009\u65b9\u6848\u4e4b\u4e00\u3002\u6211\u4eec\u8fdb\u884c\u538b\u529b\u6d4b\u8bd5\uff0c\u91c7\u7528ConcurrentHashMap, Memcached\uff08\u5047\u8bbe\u8fd1\u4f3c\u4e8eRedis\uff09, MySQL\u8fdb\u884cBenchmark\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182602393?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u5177\u4f53\u6570\u636e\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182623159?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u51fa\uff0cHashMap\uff08\u4e0a\u56fe\u663e\u793a\u4e3a\u4e00\u6839\u7ebf\uff09\u6574\u4f53\u64cd\u4f5c\u63d2\u5165\/\u67e5\u8be2\/\u79fb\u9664\u90fd 25 &#8211; 90\u500d\u5feb\u4e8eMemcached\/Redis; \u800cMemcached\/Redis\u53c8 5 -12 \u500d\u5feb\u4e8eMySQL InnoDB\uff0c\u7b26\u5408\u9884\u671f\u3002\u7a76\u5176\u539f\u56e0\uff0cJava\u5bb9\u5668\u5355\u673a\u5185\u5b58\u76f4\u63a5\u8bfb\u53d6\uff0c\u65e0\u7f51\u7edc\u5f00\u9500\uff0c\u65e0\u987b\u5e8f\u5217\u5316\u7b49\u3002<\/p>\n<p>\u800c\u53cd\u4e4b\u4e4b\u6240\u4ee5\u8981\u7528Redis\u7684\u539f\u56e0\u4e0e\u597d\u5904\u5219\u5305\u62ec\uff1a<\/p>\n<p>HashMap\u5355\u673a\u53d7\u9650\u4e8e\u5185\u5b58\u5bb9\u91cf\uff0c\u800c\u6b63\u662fRedis\u5206\u5e03\u5f0f\u4e4b\u4f18\u52bf<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>HashMap\u5f53\u6570\u636e\u91cf\u8d85\u8fc7\u4e00\u5b9a\u9650\u5236\u540e\uff0c\u9700\u8981\u59a5\u5584\u7ba1\u7406\u5806\u5185\u5b58\uff0c\u4e0d\u7136\u4f1a\u9020\u6210\u5185\u5b58\u6ea2\u51fa\u6216\u8005Memory Leak\uff1bRedis\u5219\u5177\u5907\u4e86\u6587\u4ef6\u6301\u4e45\u6027\uff0c\u4ee5\u53caFailover\u8fbe\u5230HA.<\/li>\n<li>HashMap\u53ea\u80fd\u53d7\u9650\u4e8e\u672c\u673a\uff0c\u800cRedis\u5929\u751f\u5206\u5e03\u5f0f\uff0c\u53ef\u4ee5\u8ba9\u591a\u4e2aApp Server\u8bbf\u95ee\uff0c\u8d1f\u8f7d\u5747\u8861\u3002<\/li>\n<\/ul>\n<p>\u6240\u4ee5Redis\u9002\u5408\u5168\u90e8\u6570\u636e\u90fd\u5728\u5185\u5b58\u7684\u573a\u666f\u5305\u62ec\u9700\u8981\u4e34\u65f6\u6301\u4e45\u5316\uff0c\u5c24\u5176\u4f5c\u4e3a\u7f13\u5b58\u6765\u4f7f\u7528\uff0c\u5e76\u652f\u6301\u5bf9\u7f13\u5b58\u6570\u636e\u8fdb\u884c\u7b80\u5355\u5904\u7406\u8ba1\u7b97\uff1b\u5982\u6d89\u53caRedis\u4e0eRDBMS\u53cc\u5411\u540c\u6b65\u7684\u8bdd\uff0c\u5219\u9700\u8981\u5f15\u5165\u4e00\u4e9b\u590d\u6742\u5ea6\u3002<\/p>\n<p><strong>4. Redis\u6838\u5fc3\u529f\u80fd \u00a0<\/strong><\/p>\n<p><strong>4.1 Pipelining\u00a0<\/strong><\/p>\n<p>Reids\u662f\u4e00\u4e2aTCP\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u6a21\u5f0f\uff0c\u4f7f\u7528\u4e86\u5e94\u8bf7\u6c42\/\u54cd\u5e94\u534f\u8bae\uff0c\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7684\u4ea4\u4e92\u662f\u963b\u585e\u7684\u65b9\u5f0f\u3002<\/p>\n<p>\u5982\u4e0b\u4e00\u4e2a\u8bf7\u6c42\/\u54cd\u5e94\u4e8b\u4f8b\uff0c\u5ba2\u6237\u7aef\u53d1\u8d774\u4e2aINCR\u547d\u4ee4\uff0c\u670d\u52a1\u7aef\u4f9d\u6b21\u54cd\u5e94:<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>Client:INCR X<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Server:1<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Client:INCR X<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Server:2<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Client:INCR X<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Server:3<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Client:INCR X<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Server:4<\/li>\n<\/ul>\n<p>\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u901a\u8fc7\u7f51\u7edc\u8fde\u63a5\uff0c\u5f71\u54cd\u6027\u80fd\u7684\u5173\u952e\u56e0\u7d20\u5f80\u8fd4\u65f6\u95f4\uff08RTT\u00a0Round Trip Time\uff09\u5219\u53d7\u9650\u4e8e\u7f51\u7edc<\/p>\n<p>\u901f\u5ea6\uff0c\u5982\u5728\u7f51\u901f\u8f83\u6162\u60c5\u51b5\u4e0bRTT\u9700\u8981250\u6beb\u79d2\uff0c\u54ea\u6015\u670d\u52a1\u5668\u6027\u80fd\u5353\u8d8a\u53ef\u4ee5\u6bcf\u79d2\u5904\u74061\u4e07\u4e2a\u8bf7\u6c42\uff0c\u7136\u800c\u6574\u4f53<\/p>\n<p>\u5219\u5ba2\u6237\u7aef\u53d7\u7f51\u7edc\u5236\u7ea6\u53ea\u80fd\u6bcf\u79d2\u5904\u74064\u4e2a\u8bf7\u6c42\u3002\u5373\u4fbf\u4f7f\u7528\u4e86loopback\u63a5\u53e3\u8282\u7701RTT\u65f6\u95f4\uff0c\u4f46\u5982\u679c\u9700\u8981\u5927\u91cf\u7684<\/p>\n<p>\u5199\u64cd\u4f5c\uff0c\u6574\u4f53\u6027\u80fd\u4ecd\u4e0d\u53ef\u89c2\u3002<\/p>\n<p>Redis\u5f15\u5165\u4e86\u6279\u5904\u7406\uff0c\u7ba1\u9053\uff08Pipelining\uff09\uff0c\u5373\u5ba2\u6237\u7aef\u53ef\u4ee5\u4e00\u6b21\u53d1\u9001\u591a\u4e2a\u547d\u4ee4\u7ed9\u670d\u52a1\u5668\uff0c\u65e0\u987b\u7b49\u5f85\u670d\u52a1\u5668\u7684<\/p>\n<p>\u8fd4\u56de\uff0c\u800c\u670d\u52a1\u5668\u7aef\u5219\u56de\u5c06\u8bf7\u6c42\u653e\u5165\u4e00\u4e2a\u6709\u5e8f\u7684\u7ba1\u9053\u4e2d\uff0c\u5728\u6267\u884c\u5b8c\u6210\u540e\uff0c\u4e00\u6b21\u6027\u5c06\u8fd4\u56de\u503c\u53d1\u9001\u56de\u5ba2\u6237\u7aef\u3002<\/p>\n<p>\u4e0a\u8ff0\u4e8b\u4f8b\u5728\u4f7f\u7528Pipelining\u65f6\u5982\u4e0b\uff0c\u5ba2\u6237\u7aef\u901a\u8fc7\u7f13\u51b2\u533a\uff0c\u4e00\u6b21\u6027\u6279\u91cf\u53d1\u9001\u8bf7\u6c42INCR\uff0c\u670d\u52a1\u7aef\u5219\u5904\u7406\u540e\u7edf\u4e00<\/p>\n<p>\u8fd4\u56de\u7ed3\u679c\uff1a<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>Client:INCR X<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Client:INCR X<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Client:INCR X<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Client:INCR X<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Server:1<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Server:2<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Server:3<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Server:4<\/li>\n<\/ul>\n<p><strong>4.2 Pub\/Sub<\/strong><\/p>\n<p>Reids\u63d0\u4f9b\u4e86\u89e3\u8026\u6d88\u606f\u7684\u53d1\u5e03\/\u8ba2\u9605\uff08Pub\/Sub\uff09\u901a\u4fe1\u6a21\u5f0f\uff0cPub\/Sub\u91c7\u7528\u4e8b\u4ef6\u4f5c\u4e3a\u57fa\u672c\u901a\u4fe1\u673a\u5236\uff0c\u652f\u6301\u65f6\u95f4<\/p>\n<p>\uff08\u975e\u540c\u65f6\uff09\uff0c\u7a7a\u95f4\uff08\u65e0\u987b\u77e5\u9053\u5177\u4f53\u4f4d\u7f6e\uff09\u4e0e\u540c\u6b65\uff08\u53ef\u5f02\u6b65\u6a21\u5f0f\uff09\u7b49\u89e3\u8026\u5408\uff0c\u800c\u53d1\u5e03\u4e0e\u8ba2\u9605\u5219\u901a\u8fc7\u901a\u9053<\/p>\n<p>\uff08channel\uff09\u6765\u901a\u4fe1\u3002<\/p>\n<p>Antirez\u79f0\uff0c\u6700\u521d\u5f15\u5165Pub\/Sub\u662f\u5e94\u7528\u6237\u9700\u6c42\uff0c\u5e76\u4e14Redis\u672c\u8eab\u7684\u67b6\u6784\u5df2\u7ecf\u652f\u6301Pub\/Sub, \u6240\u4ee5\u53ea\u7528\u4e86150\u884c<\/p>\n<p>\u4ee3\u7801\u5c31\u628aPub\/Sub\u5df2\u5b9e\u73b0\u7684\u5185\u90e8\u529f\u80fd\u66b4\u9732\u79f0Pub\/Sub\u00a0API\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182648324?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u4e0a\u56fe\u4e3a\u8f83\u65e9\u7248\u672c\u4e2d\u53d1\u5e03\u6d88\u606f\u7684\u4e00\u6bb5\u4ee3\u7801\u7247\u6bb5\uff0c\u53ef\u4ee5\u770b\u51fa\u6d88\u606f\u4fdd\u5b58\u5728\u4e00\u4e2aList\u94fe\u8868\u6570\u636e\u7ed3\u6784\u4e2d\uff0c\u6d88\u606f\u7684\u7c7b\u578b\u4e3a<\/p>\n<p>messagebulk\u3002\u53e6\u5916\uff0cRedis\u4e5f\u652f\u6301\u901a\u914d\u7b26\u6a21\u5f0f\u5339\u914d\u7684\u8ba2\u9605\u65b9\u5f0f\u3002<\/p>\n<p><strong>Pub\/Sub v.s. \u6d88\u606f\u4e2d\u95f4\u4ef6<\/strong><\/p>\n<p>Reids\u7684Pub\/Sub\u4e0e\u6d88\u606f\u4e2d\u95f4\u4ef6\u76f8\u6bd4\uff0c\u5e76\u4e0d\u652f\u6301\u6301\u4e45\u5316\uff0c\u5982\u7cfb\u7edf\u5b95\u673a\uff0c\u7f51\u7edc\u95ee\u9898\u7b49\u90fd\u4f1a\u9020\u6210\u6d88\u606f\u4e22\u5931\uff1b<\/p>\n<p>Redis\u7684\u6d88\u606f\u591a\u7528\u4e8e\u5b9e\u65f6\u6027\u8f83\u9ad8\u7684\u6d88\u606f\u63a8\u9001\uff0c\u5e76\u4e0d\u4fdd\u8bc1\u53ef\u9760\u6027\u3002Redis\u7684\u6d88\u606f\u4e5f\u65e0\u6cd5\u652f\u6301\u6c34\u5e73\u6269\u5c55\uff0c<\/p>\n<p>\u5982\u901a\u8fc7\u589e\u52a0consumer\u6216\u8005\u8ba2\u9605\u8005\u5206\u7ec4\u4e4b\u7c7b\u8fdb\u884c\u8d1f\u8f7d\u5747\u8861\u3002<\/p>\n<p>\u6027\u80fd\u65b9\u9762\uff0cRedis\u7684Pub\/Sub\u4e0e\u5e38\u7528\u6d88\u606f\u4e2d\u95f4\u4ef6\u5982\u8457\u540d\u7684RabbitMQ\u6bd4\u8f83\uff0c\u5219\u4f2f\u4ef2\u4e4b\u95f4\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182726316?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u4e0a\u56fe\u4ee5\u5904\u740610\u4e07\u4e2a\u6d88\u606f\u4e3a\u4f8b\uff0c\u5728\u53d1\u5e03\u6d88\u606f\u65b9\u9762\uff0cRabbitMQ\u7684\u8017\u65f6\u4e3aRedis\u768475%\uff1b\u8ba2\u9605\u6d88\u8d39\u6d88\u606f<\/p>\n<p>RabbitMQ\u8017\u65f6\u4e3aRedis\u768486%\uff0c\u53ef\u89c1\u6574\u4f53\u6027\u80fdRedis\u5df2\u4e0e\u6d88\u606f\u4e2d\u95f4\u4ef6\u76f8\u8fd1\u3002<\/p>\n<p><strong>4.3 LRU\u00a0<\/strong><\/p>\n<p>LRU(Least Recently Used) \u6700\u8fd1\u6700\u4e45\u672a\u4f7f\u7528\u7b97\u6cd5\uff0c\u662f\u591a\u6570\u7f13\u5b58\u7cfb\u7edf\u5f53\u5185\u5b58\u53d7\u9650\u65f6\u81ea\u52a8\u6e05\u7406\u65e7\u6570\u636e\u7684<\/p>\n<p>\u5e38\u7528\u5e38\u7528\u7b97\u6cd5\u4e4b\u4e00\u3002\u5f53Redis\u4f7f\u7528\u5185\u5b58\u8fbe\u5230\u914d\u7f6emaxmemory\u65f6\uff0cRedis\u4f1a\u6839\u636e\u914d\u7f6e\u7684policy\u8fdb\u884c\u6570\u636e\u7f6e<\/p>\n<p>\u6362\u5904\u7406\uff0c\u5176\u4e2d\u7b56\u7565\u5305\u62ec\u5982\u4e0b\uff1a<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>noenviction\uff08\u4e0d\u6e05\u9664\uff09<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>allkeys-lru\uff08\u4ece\u6240\u6709\u6570\u636e\u96c6\u9009\u62e9\u6700\u8fd1\u6700\u5c11\u7528\uff09<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>volatile-lru\uff08\u4ece\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u7684\u6570\u636e\u96c6\u9009\u62e9\u6700\u8fd1\u6700\u5c11\u7528\uff09<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>allkeys-random\uff08\u6240\u6709\u6570\u636e\u96c6\u968f\u673a\u9009\u53d6\u6dd8\u6c70\uff09\uff0c<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>volatile-random\uff08\u4ee5\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u6570\u636e\u96c6\u4e2d\u968f\u673a\uff09\uff0c<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>volatile-ttl\uff08\u4ece\u5df2\u8bbe\u7f6e\u8fc7\u671f\u8fc7\u671f\u65f6\u95f4\u7684\u6570\u636e\u96c6\u4e2d\u9009\u62e9\uff0c\u975eLRU\uff09<\/li>\n<\/ul>\n<p>Redis\u51fa\u4e8e\u6027\u80fd\u53ca\u8282\u7ea6\u5185\u5b58\u8003\u91cf\uff0c\u91c7\u7528\u7684\u5e76\u975e\u4e25\u683c\u610f\u4e49LRU\u7b97\u6cd5\u7b97\u6cd5\uff0c\u800c\u662f\u8fd1\u4f3c\u7684LRU\u7b97\u6cd5\uff0c\u5373Redis\u901a\u8fc7\u91c7\u6837<\/p>\n<p>\u4e00\u5c0f\u90e8\u5206\u952e\uff0c\u7136\u540e\u5728\u6837\u672c\u6c60\u4e2d\u8fdb\u884cLRU\u3002\u5f53\u7136\u5728Redis 3.0\u4e2d\uff0c\u7b97\u6cd5\u8fdb\u4e00\u6b65\u6539\u8fdb\u4e3a\u7ef4\u62a4\u56de\u6536\u5019\u9009\u952e\u6c60\uff0c\u6539\u5584\u4e86\u6027<\/p>\n<p>\u80fd\u540c\u65f6\u66f4\u63a5\u8fd1\u4e8eLRU\u7b97\u6cd5\u884c\u4e3a\u3002<\/p>\n<p>\u4e0b\u56fe\u4e3a\u5b98\u7f51\u63d0\u4f9bReids LRU\u6027\u80fd\u6d4b\u8bd5\uff0c\u5206\u522b\u4e3a\u7406\u8bbaLRU\u7b97\u6cd5\uff0c10\u4e2a\u6837\u672c\u7684Redis 3.0 LRU\u7b97\u6cd5\uff0c\u4ee5\u53ca5\u4e2a\u6837\u672c\u7684<\/p>\n<p>Redis 2.8\u4e0e3.0\u7b97\u6cd5\u7684\u8868\u73b0\uff0c\u5176\u4e2d\u6d45\u7070\u8272\u8868\u793a\u88ab\u7f6e\u6362\u51fa\u53bb\u7684key\uff0c\u7070\u8272\u4e3a\u6ca1\u6709\u88ab\u7f6e\u6362\u7684key\uff0c\u7eff\u8272\u4e3a\u65b0\u589e\u7684key\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182822082?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/>\u6d4b\u8bd5\u7b97\u6cd5\u8f83\u7b80\u5355\uff0c\u9996\u5148\u9ed8\u8ba4\u5bfc\u5165\u4e00\u5b9a\u6570\u76eekey\uff0c\u4e4b\u540e\u4ece\u7b2c\u4e00\u4e2akey\u904d\u5386\u81f3\u6700\u540e\u4e00\u4e2akey\uff08\u76f8\u5f53\u4e8e\u6309\u65f6\u95f4\u987a\u5e8f\u4f7f\u7528\u8fc7\u4e86<\/p>\n<p>\u5f53\u524d\u904d\u5386\u7684key\uff09\uff0c\u4e4b\u540e\u518d\u589e\u52a050%\u7684\u6570\u76ee\u89e6\u53d1\u6e05\u7406\u7b56\u7565\u3002<\/p>\n<p>\u53ef\u4ee5\u770b\u51fa\uff0c\u7406\u8bba\u7b97\u6cd5\u4e3a\u6700\u65e7\u768450%\u88ab\u66ff\u6362\uff1b\u540c\u6837\u6837\u672c\u4e3a5\u60c5\u51b5\u4e0b\uff0c3.0\u8868\u73b0\u8981\u4f18\u4e8e2.8\uff0c3.0\u5219\u66f4\u63a5\u8fd1\u4e8e\u7406\u8bba\u503c\uff0c<\/p>\n<p>2.8\u7b97\u6cd5\u5219\u7565\u4e3a\u900a\u8272\u3002<\/p>\n<p><strong>4.4 Transactions<br \/>\n<\/strong><\/p>\n<p>\u7edd\u5927\u591a\u6570NoSQL\u9009\u62e9\u4e0d\u652f\u6301\u4e8b\u52a1\uff0c\u800cReids\u4ee5\u547d\u4ee4\u65b9\u5f0f\uff08MULTI, EXEC, DISCARD, WA WATCH\uff09\u63d0\u4f9b\u4e86\u7b80\u5355\u7684<\/p>\n<p>\u7c7b\/\u4f2a\u4e8b\u52a1\u652f\u6301\uff0c\u4e4b\u6240\u4ee5\u79f0\u4e4b\u4e3a\u7c7b\/\u4f2a\u4e8b\u52a1\uff0c\u662f\u56e0\u4e3aRedis\u7684\u53ea\u4fdd\u8bc1\u4e86\u4e8b\u52a1\u5fc5\u987bACID\u7684C\uff08\u4e00\u81f4\u6027\uff09\uff0cI\uff08\u9694\u79bb\u6027\uff09\uff0c<\/p>\n<p>\u5e76\u4e0d\u4fdd\u8bc1A\uff08\u539f\u5b50\u6027\uff09\u4e0e\u6301\u4e45\u6027\uff08D\uff09\uff0cRedis\u4e8b\u52a1\u751a\u81f3\u4e0d\u652f\u6301\u56de\u6eda\u64cd\u4f5c\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a\uff0cRedis\u7684\u4e8b\u52a1\u63d0\u4f9b\u4e86\u4e00\u79cd\u5c06\u591a\u4e2a\u547d\u4ee4\u6253\u5305\u5e76\u7f6e\u5165\u4e8b\u52a1\u961f\u5217\uff0c\u4e4b\u540e\u6279\u91cf\u4e00\u6b21\u6027\uff0c\u6709\u5e8f\u7684\u6309\u7167\u5148\u8fdb\u5148\u51fa<\/p>\n<p>\uff08FIFO\uff09\u7684\u987a\u5e8f\u6267\u884c\u673a\u5236\u3002\u4e8b\u52a1\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u4e0d\u4f1a\u88ab\u4e2d\u65ad\uff0c\u6240\u6709\u547d\u4ee4\u547d\u4ee4\u6267\u884c\u4e4b\u540e\uff0c\u4e8b\u52a1\u624d\u7ed3\u675f\u3002<\/p>\n<p><strong>Transaction v.s.\u00a0Pipelining<\/strong><\/p>\n<p>Redis\u7684Transaction\u4e0ePipelining\u90fd\u662f\u6279\u91cf\u6267\u884c\u547d\u4ee4\uff0c\u5176\u4e3b\u8981\u5dee\u522b\u4e3a\uff1a<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>Pipelining\u4e3b\u8981\u662f\u63d0\u4f9b\u4e86\u7f51\u7edc\u5c42\u9762\u7684\u4f18\u5316\uff0c\u5ba2\u6237\u7aef\u901a\u8fc7\u7f13\u5b58\u591a\u4e2a\u547d\u4ee4\u5e76\u6309\u6279\u6b21\u53d1\u9001\u7ed9\u670d\u52a1\u7aef\u5904\u7406\u4ee5\u8282\u7701\u7f51\u7edcRTT\uff08Round Trip TIme\uff09\u65f6\u95f4\u5f00\u9500\uff0c\u4f46\u8fd9\u4e9b\u547d\u4ee4\u5e76\u4e0d\u4fdd\u8bc1\u4e8b\u52a1\u6027\uff08Redis\u7684\u5355\u7ebf\u7a0b\u4fdd\u8bc1\u4e86\u5355\u4e2a\u547d\u4ee4\u672c\u8eab\u662f\u539f\u5b50\u7684\uff0c\u4f46\u591a\u4e2aclient\u53ef\u4ee5\u53d1\u8d77\u591a\u4e2a\u547d\u4ee4\u4e32\u884c\u6267\u884c\uff09\u3002<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>Transaction\u5219\u4fdd\u8bc1\u4e86\u4e00\u4e2aclient\u53d1\u8d77\u7684\u4e8b\u52a1\u4e2d\u7684\u547d\u4ee4\u53ef\u4ee5\u8fde\u7eed\u7684\u6267\u884c\uff0c\u4e2d\u95f4\u4e0d\u4f1a\u63d2\u5165\u5176\u5b83client\u7684\u547d\u4ee4\uff0c\u800c\u6b64\u5219\u53d7\u76ca\u4e8eRedis\u7684\u5355\u7ebf\u7a0b\u6a21\u5f0f\uff0c\u5f88\u5bb9\u6613\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n<p>\u6240\u4ee5\uff0cTransaction\u4e0ePipelining\u4e0d\u4f46\u4e0d\u51b2\u7a81\uff0c\u5bf9\u4e8e\u6279\u91cf\u547d\u4ee4\u751a\u81f3\u53ef\u4ee5\u7ed3\u5408\u8d77\u6765\u4f7f\u7528\u4ee5\u8fbe\u5230\u7f51\u7edc\u4f18\u5316\u53ca\u4e8b\u52a1\u6027<\/p>\n<p>\u4fdd\u8bc1\u53cc\u91cd\u6536\u6548\u3002<\/p>\n<p><strong>4.5 Persistence<\/strong><\/p>\n<p>Redis\u63d0\u4f9b\u4e86\u4e24\u79cd\u5e38\u7528\u7684\u4e0d\u540c\u7ea7\u522b\u7684\u78c1\u76d8\u6301\u4e45\u5316\u65b9\u5f0f\uff0cRDB\u4e0eAOF\uff08Append-Only-File\uff09\u3002RDB\u6301\u4e45\u5316\u5728\u6307\u5b9a<\/p>\n<p>\u7684\u65f6\u95f4\u95f4\u9694\u751f\u6210\u6570\u636e\u96c6\u7684\u65f6\u95f4\u70b9\u5feb\u7167\uff08Snapshot\uff09, AOF\u5219\u7c7b\u4f3cRDMS\u7684binlog\u65e5\u5fd7\u3002<\/p>\n<p>\u7531\u4e8e\u5355\u7ebf\u7a0b\u8fd0\u884c\uff0cRedis\u7684RDB\u5728\u5907\u4efd\u65f6\u4e3a\u4e0d\u5f71\u54cd\u7cfb\u7edf\u6b63\u5e38\u4f7f\u7528\uff0c\u501f\u52a9Linux\u7684fork\u547d\u4ee4\u53cacopy on write\u673a\u5236\uff0c<\/p>\n<p>\u5728fork\u51fa\u7684\u5b50\u8fdb\u7a0b\u4e2d\u8fdb\u884c\u5907\u4efd\u5199RDB\u6587\u4ef6\u3002RDB\u7684\u5907\u4efd\u76f8\u5bf9\u7b80\u5355\u5e76\u4e14\u6587\u4ef6\u5c0f\uff0c\u4f46\u65e0\u6cd5\u4fdd\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u6027\uff0c<\/p>\n<p>\u5982Redis\u5728RDB\u7684\u95f4\u9694\u65f6\u95f4\u5185\u5b95\u673a\uff0c\u5219\u9762\u4e34\u4e22\u5931\u671f\u95f4\u7684\u6570\u636e\u3002RDB\u8f83\u9002\u5408\u5b9a\u671f\u7684\u5f52\u6863\u5907\u4efd\u53ca\u65b9\u4fbf\u707e\u96be\u6062\u590d\u3002<\/p>\n<p>\u800cAOF\u5219\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u6301\u4e45\u6027\uff0cRedis\u4f1a\u5c06\u6bcf\u4e2a\u547d\u4ee4\u90fd\u8ffd\u52a0\u5230AOF\u6587\u4ef6\u4e2d\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e09\u79cd\u6301\u4e45\u5316\u7b56\u7565\uff1a<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>no fsync at all\uff1aRedis\u4e0d\u8c03\u7528fsync\u6301\u4e45\u5316, \u64cd\u4f5c\u7cfb\u7edf\u51b3\u5b9a\u540c\u6b65\u65f6\u673a\uff08\u591a\u657030\u79d2\uff09<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>fsync everysecond\uff1a\u6bcf\u79d2\uff08\u5ef6\u8fdf\u4f1a\u4e24\u79d2\uff09\u8fdb\u884c\u4e00\u6b21fsync\u5c06\u7f13\u51b2\u533a\u6570\u636e\u5199\u5165\u78c1\u76d8<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>fsync always\uff1a\u6bcf\u4e2a\u547d\u4ee4\u90fd\u8fdb\u884c\u540c\u6b65\uff0c\u6301\u4e45\u5316\u5199\u5165\u78c1\u76d8\uff0c\u5b89\u5168\u4f46\u8f83\u6162<\/li>\n<\/ul>\n<p>AOF\u540e\u53f0\u6267\u884c\u7684\u65b9\u5f0f\u4e0eRDB\u7c7b\u4f3c\uff0c\u4e5f\u662f\u501f\u52a9fork\u5f00\u542f\u5b50\u8fdb\u7a0b\u8fdb\u884c\u5199\u5165AOF\u6587\u4ef6\u3002\u4e3a\u4e86\u51cf\u5c11AOF\u6587\u4ef6\u7684\u5927\u5c0f\uff0c<\/p>\n<p>Redis\u63d0\u4e86\u4e86\u6587\u4ef6\u538b\u7f29\u547d\u4ee4\uff0c\u53e6\u5916\u652f\u6301\u65e5\u5fd7\u91cd\u5199\uff0c\u540e\u53f0\u91cd\u6784AOF\u6587\u4ef6\u4ee5\u51cf\u5c11\u6240\u9700\u547d\u4ee4\u3002<\/p>\n<p><strong>4.6 Replication<br \/>\n<\/strong><\/p>\n<p>Redis\u652f\u6301Master\/Slave\u4e3b\u4ece\u914d\u7f6e\uff0c\u5b9e\u73b0\u5f31\u4e00\u81f4\u6027\uff0c\u652f\u6301\u8d1f\u8f7d\u5747\u8861\uff0c\u63d0\u9ad8HA\u3002Redis\u7684Master\u53ef\u4ee5\u5bf9\u5e94<\/p>\n<p>\u591a\u4e2aSlave, Slave\u4e5f\u53ef\u4ee5\u7ea7\u8054\u591a\u4e2aSlave\u3002\u901a\u5e38Master\u8d1f\u8d23\u8bfb\u5199\u670d\u52a1\uff0cSlave\u8d1f\u8d23\u8bfb\u670d\u52a1\uff0cMaster\u4e0eSlave<\/p>\n<p>\u95f4\u9760Replication\u5b9a\u671f\u6765\u8fdb\u884c\u540c\u6b65\u3002<\/p>\n<p>Redis\u7684\u4e3b\u4ece\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793aDAG\uff08\u6709\u5411\u65e0\u73af\u56fe\uff09<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182852467?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\nSlave\u4f1a\u5b9a\u671f\u7ed9Master\u53d1\u9001SYNC\u547d\u4ee4\u8fdb\u884c\u540c\u6b65\uff0c\u5982\u679c\u7b2c\u4e00\u6b21\u8fde\u63a5\u5219\u8fdb\u884c\u5168\u91cf\u540c\u6b65\u5426\u5219\u589e\u91cf\u540c\u6b65\u3002<\/p>\n<p>Master\u5219\u542f\u52a8\u540e\u53f0\u5feb\u627e\u8fdb\u7a0bsaving\u6765\u6536\u96c6\u6700\u8fd1\u4fee\u6539\u6570\u636e\u96c6\u6240\u6709\u547d\u4ee4\u5e76\u5c06\u5176\u7528db file\u4f20\u8f93\u7ed9Slave\u3002<\/p>\n<div>\u53e6\u5916\uff0cRedis\u4ece2.8\u7248\u672c\u5f00\u59cb\u652f\u6301\u4e2d\u65ad\u540e\uff08\u7f51\u7edc\u65ad\u5f00\u7b49\u6545\u969c\uff09\u7684\u65ad\u70b9\u7eed\u4f20\u529f\u80fd\uff0c\u65e0\u987b\u91cd\u65b0\u540c\u6b65\u3002<\/div>\n<div>Master\u7ef4\u62a4\u4e00\u4e2a\u5185\u5b58\u7f13\u51b2\u533a\uff0c\u4e3b\u4ece\u670d\u52a1\u5668\u90fd\u7ef4\u62a4\u4e00\u4e2a\u590d\u5236\u504f\u79fb\u91cf\uff08offset\uff09\u548cmaster run id\uff0c<\/div>\n<div>\u5f53\u65ad\u5f00\u91cd\u65b0\u8fde\u63a5\u540e\uff0cMaster\u5224\u65ad\u4e24\u4e2amaster run id\u662f\u5426\u76f8\u540c\uff0c\u5e76\u6839\u636e\u6307\u5b9a\u7684\u504f\u79fb\u91cf\u7ee7\u7eed\u65ad\u70b9\u7eed\u4f20\u3002<\/div>\n<p><strong>5. Redis\u7cfb\u7edf\u67b6\u6784 \u00a0<\/strong><strong>Sentinel\u67b6\u6784<\/strong><\/p>\n<p>Reids Sentinel\u8bde\u751f\u4e8e2012\u5e74\uff08Redis 2.4\u7248\u672c\uff09\uff0c\u5efa\u8bae\u5728\u5355\u673aRedis\u6216\u8005\u5ba2\u6237\u7aef\u6a21\u5f0fCluster\u7684\u65f6\u5019<\/p>\n<p>\uff08\u975e\u00a03.0\u7248\u672cRedis Cluster\uff09\u91c7\u7528\uff0c\u4f5c\u4e3aHA, Failover\u6765\u4f7f\u7528\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816182943296?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\nSentinel\u4e3b\u8981\u63d0\u4f9b\u4e86\u96c6\u7fa4\u7ba1\u7406\uff0c\u5305\u62ec\u76d1\u63a7\uff0c\u901a\u77e5\uff0c\u81ea\u52a8\u6545\u969c\u6062\u590d\u3002\u5982\u4e0a\u56fe\uff0c\u5f53\u5176\u4e2d\u4e00\u4e2amaster\u65e0\u6cd5<\/p>\n<p>\u6b63\u5e38\u5de5\u4f5c\u65f6\uff0cSentinel\u5c06\u628a\u4e00\u4e2aSlave\u63d0\u5347\u4e3aMaster, \u4ece\u800c\u81ea\u52a8\u6062\u590d\u6545\u969c\u3002\u800cSentinel\u672c\u8eab\u4e5f\u505a\u5230\u4e86<\/p>\n<p>\u5206\u5e03\u5f0f\uff0c\u53ef\u4ee5\u90e8\u7f72\u591a\u4e2aSentinel\u5b9e\u4f8b\u6765\u76d1\u63a7Redis\u5b9e\u4f8b\uff08\u5efa\u8bae\u57fa\u6570\uff0c\u81f3\u5c113\u4e2aSentinel\u5b9e\u4f8b\u6765\u76d1\u63a7\u4e00<\/p>\n<p>\u7ec4Redis Master\/Slaves\uff09\uff0c\u591a\u4e2aSentinel\u8fdb\u7a0b\u95f4\u901a\u8fc7Gossip\u534f\u8bae\u6765\u786e\u5b9aMaster\u662f\u5426\u5b95\u673a\uff0c\u901a\u8fc7<\/p>\n<p>Agreement\u534f\u8bae\u6765\u51b3\u5b9a\u662f\u5426\u6267\u884c\u6545\u969c\u81ea\u52a8\u8fc1\u79fb\u4ee5\u53ca\u91cd\u65b0\u9009\u4e3b\uff0c\u6574\u4f53\u8bbe\u8ba1\u7c7b\u4f3cZooKeeper<\/p>\n<p>\uff08\u5e94\u8be5\u662f\u4f5c\u8005\u53c2\u8003\u4e86\u5f53\u5e74\u7684ZK\u5427\uff1f\uff09\u3002<\/p>\n<p><strong>Cluster\u67b6\u6784<\/strong><\/p>\n<p>Redis Cluster\u5f00\u59cb\u8bbe\u8ba1\u4e8e2011\u5e74\uff08\u65e9\u4e8eSentinel\uff09\uff0c\u6b63\u5f0f\u8bde\u751f\u4e8e2015\u5e74\u611a\u4eba\u8282\uff0cRedis 3.0\uff0c\u5176\u4e2d\u4e4b<\/p>\n<p>\u82e6\u8fa3\u9178\u751c\u53ea\u6709Antirez\u81ea\u5df1\u77e5\u9053\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816183035672?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<p>\u5982\u4e0a\u56fe\uff0c\u4ece3.0\u5f00\u59cb\uff0c Redis\u4ece\u4e00\u4e2a\u5355\u7eaf\u7684NoSQL\u5185\u5b58\u6570\u636e\u5e93\u53d8\u6210\u4e86\u4e00\u4e2a\u771f\u6b63\u5206\u5e03\u5f0fNoSQL\u6570\u636e\u5e93\u3002<\/p>\n<p>\u6982\u62ec\u6765\u8bf4\uff0c\u6240\u8c13\u5206\u5e03\u5f0f\u5373\u652f\u6301\u6570\u636e\u5206\u7247\uff0c\u5e76\u4e14\u81ea\u52a8\u7ba1\u7406\u6545\u969c\u6062\u590d\uff08failover\uff09\u4e0e\u5907\u4efd\uff08replication\uff09\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816183058223?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u5982\u4e0a\u56feRedis Cluster\u91c7\u7528\u4e86\u65e0\u4e2d\u5fc3\u7ed3\u6784\uff0c\u6bcf\u4e2a\u8282\u70b9\u90fd\u4fdd\u5b58\uff0c\u5171\u4eab\u6570\u636e\u548c\u96c6\u7fa4\u72b6\u6001\uff0c\u6bcf\u4e2a\u8282\u70b9\u4e0e<\/p>\n<p>\u5176\u5b83\u6240\u6709\u8282\u70b9\u901a\u4fe1\uff0c\u4f7f\u7528Gossip\u534f\u8bae\u6765\u4f20\u64ad\u53ca\u53d1\u73b0\u65b0\u8282\u70b9\uff0c\u901a\u8fc7\u5206\u533a\u6765\u63d0\u4f9b\u4e00\u5b9a\u7a0b\u5ea6\u53ef\u7528\u6027\uff0c<\/p>\n<p>\u5f53\u67d0\u4e2anode\u7684Master\u5b95\u673a\u65f6\uff0cCluste\u4f1a\u81ea\u52a8\u9009\u4e3e\u4e00\u4e2aSlave\u5f62\u6210\u4e00\u4e2a\u65b0\u7684Master\uff0c\u8fd9\u91cc\u5e94\u8be5\u662f<\/p>\n<p>\u501f\u9274\uff0c\u91cd\u7528\u4e86Sentinel\u7684\u529f\u80fd\u3002<\/p>\n<p>\u53e6\u5916\uff0cRedis Cluster\u5e76\u6ca1\u6709\u4f7f\u7528\u901a\u5e38\u7684\u4e00\u81f4\u6027\u54c8\u5e0c, \u800c\u5f15\u5165\u54c8\u5e0c\u69fd\u7684\u6982\u5ff5\uff0cCluster\u4e2d\u56fa\u5b9a\u6709<\/p>\n<p>16384\u4e2aslot, \u6bcf\u4e2akey\u901a\u8fc7CRC16\u6821\u9a8c\u540e\u5bf916384\u53d6\u6a21\u6765\u51b3\u5b9a\u5176\u5bf9\u5e94slot\u7684\u4f4d\u7f6e\uff0c\u800c\u6bcf\u4e2anode<\/p>\n<p>\u8d1f\u8d23\u4e00\u90e8\u5206\u7684slot\u7ba1\u7406\uff0c\u5f53node\u53d8\u5316\u65f6\uff0c\u52a8\u6001\u8c03\u6574slot\u7684\u5206\u5e03\uff0c\u800c\u6570\u636e\u5219\u65e0\u987b\u632a\u52a8\u3002\u5bf9\u4e8e\u5ba2\u6237\u7aef<\/p>\n<p>\u6765\u8bf4\uff0cclient\u53ef\u4ee5\u5411\u4efb\u610f\u4e00\u4e2a\u5b9e\u4f8b\u8bf7\u6c42\uff0cCluster\u4f1a\u81ea\u52a8\u5b9a\u4f4d\u9700\u8981\u8bbf\u95ee\u7684slot\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816183128033?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<p>\u4e0a\u56fe\u67e5\u8be2\u8def\u7531\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u968f\u673a\u53d1\u9001\u5230\u4efb\u610f\u4e00\u4e2aRedis\u5b9e\u4f8b\uff0c\u8fd9\u4e2a\u5b9e\u4f8b\u4f1a\u6309\u7167\u4e0a\u6587\u63d0\u5230\u7684CRC16<\/p>\n<p>\u6821\u9a8c\u540e\u53d6\u6a21\u5b9a\u4f4d\uff0c\u5e76\u8f6c\u53d1\u81f3\u6b63\u786e\u7684Redis\u5b9e\u4f8b\u4e2d\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816183206708?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<p>\u7136\u800c\uff0c\u5b8c\u5168\u53bb\u4e2d\u5fc3\u5316\u7684\u67b6\u6784\u540c\u65f6\u4e5f\u5931\u53bb\u4e86\u4e00\u4e9b\u7075\u6d3b\u4e0e\u603b\u63a7\u80fd\u529b\uff0c\u5982\u53ef\u901a\u8fc7\u5f15\u5165\u4e2d\u592e\u63a7\u5236\u7684\u81ea\u52a8\u53d1<\/p>\n<p>\u73b0\u8282\u70b9\u7684\u53d8\u5316\u53ca\u65f6Rebalance\uff0c\u5206\u533a\u7c92\u5ea6\u7684\u5907\u4efd\uff0c\u6545\u969c\u65f6\u5206\u533a\u81ea\u52a8\u8c03\u6574\uff0cGossip\u6d88\u606f\u7684\u901a\u4fe1\u5f00\u9500\uff0c<\/p>\n<p>\u8def\u7531\u8868\u7ef4\u62a4\u7b49\u3002<\/p>\n<p>\u503c\u5f97\u4e00\u63d0\u7684\u662f\uff0cRedis\u7684\u4f01\u4e1a\u7248\/\u5546\u4e1a\u7248Redis Labs Enterprise Cluster\uff08RLEC\uff09\u5219\u4f3c\u4e4e\u89e3\u51b3\u4e86\u6211\u4eec<\/p>\n<p>\u4e0a\u8ff0\u95ee\u9898\uff0c\u5982\u5f15\u5165\u4e86\u4e2d\u592e\u63a7\u5236Cluster Manager\u6765\u7ba1\u7406\uff0c\u76d1\u63a7\uff0c\u5206\u7247\u8fc1\u79fb\u7b49\u5de5\u4f5c, \u5f15\u5165\u9ad8\u6027\u80fdProxy<\/p>\n<p>\u9690\u85cf\u5e55\u540e\u7684\u8def\u7531\u5b9e\u73b0\u7b49\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816183237815?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<p>\u5f53\u7136\uff0c\u524d\u63d0\u662f\u5546\u4e1a\u5316\u4ed8\u8d39\u7248\u672c\u4e86\uff0c\u6211\u4eec\u4e5f\u671f\u5f85\u672a\u6765\u7684\u5f00\u6e90Redis\u9010\u6b65\u53ef\u4ee5\u5f15\u5165\u8fd9\u4e9b\u6982\u5ff5\u3002<\/p>\n<p><strong>6. Redis \u5185\u90e8\u6570\u636e\u7ed3\u6784 \u00a0<\/strong>Redis\u652f\u6301\u4e30\u5bcc\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5e76\u63d0\u4f9b\u4e86\u5927\u91cf\u7b80\u5355\u9ad8\u6548\u7684\u529f\u80fd\u3002\u4e3a\u4e86\u9ad8\u6548\u4f7f\u7528Redis\uff0c\u5f00\u53d1\u8bbe\u8ba1\u4eba\u5458\u9700\u8981\u5bf9Redis\u7684\u6570\u636e\u7ed3\u6784\u8fdb\u884c\u9009\u578b\uff0c\u5982\u9009\u62e9\u94fe\u8868\u8fd8\u662f\u96c6\u5408\u7b49\u3002 \u4e0b\u9762\u6211\u4eec\u5feb\u901f\u4e86\u89e3\u4e00\u4e0bRedis\u5185\u90e8\u6570\u636e\u7ed3\u6784\u53ca\u5176\u4ee3\u7801\u5b9e\u73b0\u3002Redis\u7684\u5e95\u5c42\u6570\u636e\u7ed3\u6784\u603b\u89c8\u56fe\uff1a<\/p>\n<div><\/div>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816215403392?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u4e0a\u56fe\u5217\u51fa\u4e86Redis\u5185\u90e8\u5e95\u5c42\u7684\u4e00\u4e9b\u91cd\u8981\u6570\u636e\u7ed3\u6784\uff0c\u5305\u62ecList, Set, Hash, String\u7b49\u3002<\/p>\n<p>\u6765\u770b\u51e0\u4e2a\u6bd4\u8f83\u6838\u5fc3\u7684\u7684\u6570\u636e\u7ed3\u6784\u3002<\/p>\n<p><strong>Redis Object\u00a0<\/strong>Redis 3.x\u540e\u7684redisObject\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816215441390?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\nredisObject\u5b9a\u4e49\u4e2d\u4f7f\u7528\u4e86\u4f4d\u5b57\u6bb5\uff08bit filed\uff09\u3002\u7b80\u5355\u6765\u8bf4\uff0credisObject\u5b9a\u4e49\u4e86\u7c7b\u578b\uff0c\u7f16\u7801\u65b9\u5f0f\uff0c<\/p>\n<p>LRU\u65f6\u95f4\uff0c\u5f15\u7528\u8ba1\u6570\uff0c*ptr\u6307\u5411\u5b9e\u9645\u4fdd\u5b58\u503c\u6307\u9488\u3002<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>type: redisObject\u7684\u7c7b\u578b\uff0c\u5b57\u7b26\u4e32\uff0c\u5217\u8868\uff0c\u96c6\u5408\uff0c\u6709\u5e8f\u96c6\uff0c\u54c8\u5e0c\u8868\u7b49<\/li>\n<li>encoding: \u5e95\u5c42\u5b9e\u73b0\u7ed3\u6784\uff0c\u5b57\u7b26\u4e32\uff0c\u6574\u6570\uff0c\u8df3\u8dc3\u8868\uff0c\u538b\u7f29\u5217\u8868\u7b49<\/li>\n<li>ptr\uff1a\u5b9e\u9645\u6307\u5411\u4fdd\u5b58\u503c\u7684\u6570\u636e\u7ed3\u6784<\/li>\n<\/ul>\n<p>\u4e3e\u4e2a\u5177\u4f53\u4f8b\u5b50\uff0credisObject{type: REDIS_LIST, encoding:REDIS_ENCODING_LINKEDLIST},<\/p>\n<p>\u8fd9\u4e2a\u5bf9\u8c61\u662fRedis\u5217\u8868\uff0c\u5176\u503c\u4fdd\u5b58\u5728\u4e00\u4e2a\u94fe\u8868\u4e2d\uff0cptr\u6307\u9488\u6307\u5411\u8fd9\u4e2a\u5217\u8868\u3002<\/p>\n<p>\u7528\u60ef\u4e86JVM\u7684\u865a\u62df\u673a\uff0c\u6211\u4eec\u4e5f\u6765\u56de\u987e\u4e00\u4e0bC\u6216\u8005Redis\u662f\u5982\u4f55\u7ba1\u7406\u5bf9\u8c61\u7684\u3002\u603b\u4f53\u800c\u8a00\uff0cRedis\u81ea\u5df1\u5b9e\u73b0\u5bf9\u8c61\u7ba1\u7406\u673a\u5236\uff0c\u5e76\u57fa\u4e8e\u5f15\u7528\u8ba1\u6570\u7684\u5783\u573e\u56de\u6536\u3002<\/p>\n<div><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816215517095?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/div>\n<p>\u6beb\u65e0\u7591\u95ee\u7684\u76f4\u63a5malloc\u5f00\u8f9f\u5185\u5b58\u7a7a\u95f4\uff0c\u8bbe\u7f6etype\uff0cencoding\uff0c\u5f15\u7528\u8ba1\u6570\u9ed8\u8ba41\uff0c\u8bbe\u7f6e\u9ed8\u8ba4LRU\u3002\u53ef\u4ee5\u770b\u51farefcount\uff0c\u731c\u6d4b\u5176\u5185\u90e8\u662f\u57fa\u4e8e\u5f15\u7528\u8ba1\u6570\u6765\u7ba1\u7406\u91ca\u653e\u5185\u5b58\u7a7a\u95f4\u7684\u3002\u4e8b\u5b9e\u8981\u4ee5\u4ee3\u7801\u4e3a\u51c6\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816215616689?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u679c\u4e0d\u5176\u7136\uff0cRedis\u63d0\u4f9b\u4e86incrRefCount\u4e0edecrRefCount\u6765\u7ba1\u7406\u5bf9\u8c61\u8ddf\u8e2a\u5bf9\u8c61\u7684\u5f15\u7528, \u00a0\u5f53\u51cf\u5c11\u5f15\u7528\u65f6\u68c0\u6d4b\u8ba1\u6570\u5668\u4e3a\u662f\u5426\u9700\u8981\u91ca\u653e\u5185\u5b58\u5bf9\u8c61\u3002<strong>RedisDB \u00a0 \u00a0<\/strong><\/p>\n<p>RedisDB\u5185\u90e8\u6570\u636e\u7ed3\u6784\uff0c\u5c01\u88c5\u4e86\u6570\u636e\u5e93\u5c42\u9762\u7684\u4fe1\u606f\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816215715143?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<p>\u4eceredisDB\u6765\u770b\uff0c\u51e0\u4e2a\u91cd\u8981\u5c5e\u6027\uff1a<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>id\uff1a\u6570\u636e\u5e93\u5185\u90e8\u7f16\u53f7\uff0c\u4ec5\u4f9b\u5185\u90e8\u64cd\u4f5c\u4f7f\u7528\uff0c\u5982AOF\u7b49<\/li>\n<li>dict\uff1a\u5b58\u653e\u6574\u4e2a\u6570\u636e\u5e93\u7684\u952e\u503c\u5bf9\uff0c\u952e\u4e3a\u5b57\u7b26\u4e32\uff0c\u503c\u4e3aRedis\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5982List, Set, Hash\u7b49\u3002<\/li>\n<li>expires\uff1a\u952e\u7684\u8fc7\u671f\u65f6\u95f4<\/li>\n<\/ul>\n<p>\u5177\u4f53\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816215801692?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u4ee3\u7801\u6ce8\u91ca\u8f83\u4e3a\u6e05\u6670\uff0c\u5176\u4e2dlong long\u662fC99\u6807\u51c6\u65b0\u52a0\u7684\uff0c64\u4f4d\u957f\u6574\u578b\u3002<\/p>\n<p><strong>RedisServer \u00a0 \u00a0<\/strong>RedisServer\u4ee3\u7801\u5728Redis 3.0\u652f\u6301Cluster\u540e\u53d8\u5f97\u8f83\u590d\u6742\uff0c\u6211\u4eec\u53ea\u5217\u51fa\u90e8\u5206\u4ee3\u7801\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816215838065?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u603b\u4f53\u6765\u8bf4\u5305\u542b\u5982\u4e0b\u51e0\u4e2a\u5927\u90e8\u5206\uff1a<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>\u901a\u7528\u90e8\u5206\uff1a\u5982pid\u8fdb\u7a0bid\uff0c\u6570\u636e\u5e93\u6307\u9488\uff0c\u547d\u4ee4\u5b57\u5178\u8868\uff0cSentinel\u6a21\u5f0f\u6807\u5fd7\u4f4d\u7b49<\/li>\n<li>\u7f51\u7edc\u4fe1\u606f\uff1a\u5982port TCP\u76d1\u542c\u7aef\u53e3\uff0cCluster Bus\u76d1\u542csocket, \u5df2\u4f7f\u7528slot\u6570\u91cf\uff0cActive\u7684\u5ba2\u6237\u7aef\u5217\u8868, \u5f53\u524d\u5ba2\u6237\u7aef\uff0cSlaves\u5217\u8868\u7b49\u3002<\/li>\n<li>\u5176\u5b83\u4fe1\u606f\uff1a\u5982AOF\u4fe1\u606f\uff0c\u7edf\u8ba1\u4fe1\u606f, \u914d\u7f6e\u4fe1\u606f\uff08\u5982\u5df2\u7ecf\u914d\u7f6e\u603bdb\u6570\u91cfdbnum\u7b49\uff09\uff0c\u65e5\u5fd7\u4fe1\u606f\uff0cReplication\u914d\u7f6e\uff0cPub\/Sub, Cluster\u4fe1\u606f\uff0cLua\u811a\u672c\u4fe1\u606f\u914d\u7f6e\u7b49\u7b49\u3002<\/li>\n<\/ul>\n<p><strong>Redis Hash<\/strong><\/p>\n<p>Redis\u7684\u54c8\u5e0c\u8868\/\u5b57\u5178\u662f\u5176\u6838\u5fc3\u6570\u636e\u7ed3\u6784\u4e4b\u4e00\uff0c\u503c\u5f97\u6df1\u5165\u7814\u7a76\u3002Redis Hash\u6570\u636e\u7ed3\u6784\uff0c Hash\u65b0\u521b\u5efa\u65f6\uff0c<\/p>\n<p>\u5728\u4e0d\u5f71\u54cd\u6548\u7387\u60c5\u51b5\u4e0b\uff0cRedis\u9ed8\u8ba4\u4f7f\u7528zipmap\u4f5c\u4e3a\u5e95\u5c42\u5b9e\u73b0\u4ee5\u8282\u7701\u7a7a\u95f4\uff0c\u53ea\u6709\u5f53size\u8d85\u51fa\u4e00\u5b9a\u9650\u5236\u540e<\/p>\n<p>\uff08hash-max-zipmap-entries\u00a0\uff09\uff0cRedis\u624d\u4f1a\u81ea\u52a8\u628azipmap\u8f6c\u6362\u4e3a\u4e0b\u56feHash Table\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816215922913?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u4e0a\u56fe\u5b57\u5178\u7684\u5e95\u5c42\u5b9e\u73b0\u4e3a\u54c8\u5e0c\u8868\uff0c\u6bcf\u4e2a\u5b57\u5178\u5305\u542b2\u4e2a\u54c8\u5e0c\u8868\uff0cht[0], ht[1], 1\u53f7\u54c8\u5e0c\u8868\u662f\u5728rehash\u8fc7\u7a0b\u4e2d\u624d<\/p>\n<p>\u4f7f\u7528\u7684\u3002\u800c\u54c8\u5e0c\u8868\u5219\u7531dictEntry\u6784\u6210\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816215957288?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/p>\n<p>\u4ee3\u7801\u5c42\u9762\uff0c\u6bcf\u4e2a\u5b57\u5178\u5305\u542b\u4e863\u4e2a\u5185\u90e8\u6570\u636e\u7ed3\u6784\uff1a<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>Dict\uff1a\u5b57\u5178\u7684\u6839\u7ed3\u6784\uff0c\u5305\u542b\u4e862\u4e2adictht\uff0c\u5176\u4e2d2\u4f5c\u4e3arehashing\u4e4b\u7528<\/li>\n<li>Dictht\uff1a\u5305\u542b\u4e86linkedlist dictEntry<\/li>\n<li>DictEntry\uff1a\u5305\u542b\u4e863\u4e2a\u6570\u636e\u7ed3\u6784\uff08double\/uint64_6\/int64t\uff09\u7684\u94fe\u8868\uff0c\u7c7b\u4f3cJava HashMap\u4e2d\u7684Entry\u7ed3\u6784<\/li>\n<\/ul>\n<p class=\"p1\"><strong><span class=\"s1\">Hash<\/span>\u7b97\u6cd5<\/strong><\/p>\n<p class=\"p1\">\u76ee\u524d<span class=\"s1\">Redis<\/span>\u4e2d\u5f15\u5165\u4e86\u4e00\u4e9b\u7ecf\u5178\u54c8\u5e0c\u7b97\u6cd5\uff0c\u800c<span class=\"s1\">HashTable<\/span>\u5219\u4e3b\u8981\u4e3a\u4ee5\u4e0b\u4e24\u79cd\uff1a<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>MurmurHash2 32bit\u7b97\u6cd5\uff1a\u8457\u540d\u7684\u975e\u52a0\u5bc6\u578b\u54c8\u5e0c\u51fd\u6570\uff0c\u80fd\u4ea7\u751f32\u4f4d\u621664\u4f4d\u54c8\u5e0c\u503c\uff0c\u6700\u65b0\u7248\u672c\u4e3a<\/li>\n<li>MurmurHash3\u3002\u8be5\u7b97\u6cd5\u9488\u5bf9\u4e00\u4e2a\u5b57\u7b26\u4e32\u8fdb\u884c\u54c8\u5e0c\uff0c\u53ef\u8868\u73b0\u8f83\u5f3a\u79bb\u6563\u6027\u3002<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-2\">\n<li>\u57fa\u4e8edjb\u7b97\u6cd5\u5b9e\u73b0\u6563\u5217\u7b97\u6cd5\uff1a\u8be5\u7b97\u6cd5\u8f83\u4e3a\u7b80\u5355\uff0c\u540c\u6837\u662f\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u54c8\u5e0c\u503c\u3002\u4e3b\u8981\u5229\u7528\u5b57\u7b26\u4e32\u4e2d<\/li>\n<li>\u7684ASCII\u7801\u4e0e\u4e00\u4e2a\u968f\u673aseed\uff0c\u8fdb\u884c\u53d8\u6362\u5f97\u5230\u54c8\u5e0c\u503c\u3002<\/li>\n<\/ul>\n<p>\u8bc4\u4f30\u4e00\u4e2a\u54c8\u5e0c\u7b97\u6cd5\u7684\u4f18\u52a3\uff0c\u4e3b\u8981\u770b\u5176\u54c8\u5e0c\u503c\u7684\u79bb\u6563\u5747\u5300\u6548\u679c\u4ee5\u53ca\u6d88\u9664\u51b2\u7a81\u7a0b\u5ea6\u3002Redis\u5728HashTable\u4e2d<\/p>\n<p>\u5f15\u5165\u7684\u4e0a\u8ff0\u4e24\u79cd\u7b97\u6cd5\u4e0d\u5931\u7b80\u5355\u9ad8\u6548\uff0c\u79bb\u6563\u5747\u5300\u3002<\/p>\n<p><strong>Rehash<\/strong><\/p>\n<p>\u7c7b\u4f3cJava\u4e2d\u7684HashMap, \u5f53\u6709\u65b0\u952e\u503c\u5bf9\u6dfb\u52a0\u5230Redis\u5b57\u5178\u65f6\uff0c\u6709\u53ef\u80fd\u4f1a\u89e6\u53d1rehash\u3002Redis\u4e2d\u5904\u7406\u54c8\u5e0c<\/p>\n<p>\u78b0\u649e\u7684\u65b9\u6cd5\u4e0eJava\u4e00\u6837\uff0c\u90fd\u662f\u91c7\u7528\u94fe\u8868\u6cd5\uff0c\u6574\u4e2a\u54c8\u5e0c\u8868\u7684\u6027\u80fd\u5219\u4f9d\u8d56\u4e8e\u5b83\u7684\u5927\u5c0fsize\u548c\u5b83\u5df2\u7ecf\u4fdd\u5b58\u8282\u70b9<\/p>\n<p>\u6570\u91cfused\u7684\u6bd4\u7387\u3002<\/p>\n<p>\u6bd4\u7387\u57281:1\u65f6\uff0c\u54c8\u5e0c\u8868\u7684\u6027\u80fd\u6700\u597d\uff0c\u5982\u679c\u8282\u70b9\u6570\u91cf\u6bd4\u54c8\u5e0c\u8868\u5927\u5c0f\u5927\u5f88\u591a\u7684\u8bdd\uff0c\u5219\u6574\u4e2a\u54c8\u5e0c\u8868\u5c31\u9000\u5316\u6210\u591a\u4e2a<\/p>\n<p>\u94fe\u8868\uff0c\u5176\u6027\u80fd\u4f18\u52bf\u5168\u65e0\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160816220048024?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><br \/>\n\u4e0a\u56fe\u7684\u54c8\u5e0c\u8868\uff0c\u5e73\u5747\u6bcf\u6b21\u5931\u8d25\u67e5\u627e\u9700\u8981\u8bbf\u95ee5\u4e2a\u8282\u70b9\u3002\u4e3a\u4e86\u4fdd\u6301\u9ad8\u6548\u6027\u80fd\uff0c\u5728\u4e0d\u4fee\u6539\u952e\u503c\u5bf9\u60c5\u51b5\u4e0b\uff0c<\/p>\n<p>\u9700\u8981\u8fdb\u884crehash\uff0c\u76ee\u6807\u662f\u5c06ratio\u6bd4\u7387\u7ef4\u6301\u57281:1\u5de6\u53f3\u3002<\/p>\n<p><strong>Ratio \uff1d Used \/ Size<\/strong><\/p>\n<p><strong>rehash\u89e6\u53d1\u6761\u4ef6\uff1a<\/strong><\/p>\n<ul class=\"list-paddingleft-2\">\n<li>\u81ea\u7136rehash\uff1aratio &gt;= 1, \u4e14\u53d8\u91cfdict_can_resize\u4e3a\u771f<\/li>\n<li>\u5f3a\u5236rehash\uff1aratio\u5927\u4e8edict_force_resize_ratio\uff08v 3.2.1\u7248\u672c\u4e3a5\uff09<\/li>\n<\/ul>\n<p><strong>rehash\u6267\u884c\u8fc7\u7a0b\uff1a<\/strong><\/p>\n<ul class=\"list-paddingleft-2\">\n<li>\u521b\u5efaht[1]\u5e76\u5206\u914d\u81f3\u5c112\u500d\u4e8eht[0] table\u7684\u7a7a\u95f4<\/li>\n<li>\u5c06ht[0] table\u4e2d\u7684\u6240\u6709\u952e\u503c\u5bf9\u8fc1\u79fb\u5230ht[1] table<\/li>\n<li>\u5c06ht[0]\u6570\u636e\u6e05\u7a7a\uff0c\u5e76\u5c06ht[1]\u66ff\u6362\u4e3a\u65b0\u7684ht[0]<\/li>\n<\/ul>\n<p>Redis\u54c8\u5e0c\u4e3a\u4e86\u907f\u514d\u6574\u4e2arehash\u8fc7\u7a0b\u4e2d\u670d\u52a1\u88ab\u963b\u585e\uff0c\u91c7\u7528\u4e86\u6e10\u8fdb\u5f0f\u7684rehash\uff0c\u5373rehash\u7a0b\u5e8f\u6fc0\u6d3b\u540e\uff0c\u5e76\u4e0d\u662f<\/p>\n<p>\u9a6c\u4e0a\u6267\u884c\u76f4\u5230\u5b8c\u6210\uff0c\u800c\u662f\u5206\u591a\u6b21\uff0c\u6e10\u8fdb\u5f0f\uff08incremental\uff09\u7684\u5b8c\u6210\u3002\u540c\u65f6\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u5e76\u53d1\u5b89\u5168\uff0c\u5728\u6267\u884crehash<\/p>\n<p>\u4e2d\u95f4\u6267\u884c\u6dfb\u52a0\u65f6\uff0c\u65b0\u7684\u8282\u70b9\u4f1a\u76f4\u63a5\u6dfb\u52a0\u5230ht[1]\u800c\u4e0d\u662fht[0], \u8fd9\u6837\u4fdd\u8bc1\u4e86\u6570\u636e\u7684\u5b8c\u6574\u6027\u4e0e\u5b89\u5168\u6027\u3002<\/p>\n<p>\u53e6\u4e00\u65b9\u9762\uff0c\u54c8\u5e0c\u7684Rehash\u5728\u8fd8\u63d0\u4f9b\u4e86\u521b\u65b0\u7684\uff08\u76f8\u5bf9\u4e8eJava HashMap\uff09\u6536\u7f29\uff08shrink\uff09\u5b57\u5178\uff0c\u5f53\u53ef\u7528\u8282\u70b9\u8fdc\u8fdc<\/p>\n<p>\u5927\u4e8e\u5df2\u7528\u8282\u70b9\u7684\u65f6\u5019\uff0crehash\u4f1a\u81ea\u52a8\u8fdb\u884c\u6536\u7f29\uff0c\u5177\u4f53\u8fc7\u7a0b\u4e0e\u4e0a\u9762\u7c7b\u4f3c\u4ee5\u4fdd\u8bc1\u6bd4\u7387\u59cb\u7ec8\u9ad8\u6548\u4f7f\u7528\u3002<\/p>\n<p><strong>7. \u603b\u7ed3<\/strong><\/p>\n<p class=\"p1\">\u672c\u6587\u4ece<span class=\"s1\">Redis<\/span>\u7684\u4e00\u4e9b\u6838\u5fc3\u529f\u80fd\uff0c\u9002\u7528\u8303\u56f4\u4e0e\u672c\u8d28\u539f\u56e0\uff0c\u5206\u5e03\u5f0f\u67b6\u6784\u8bbe\u8ba1\uff0c<span class=\"s1\">Cluster<\/span>\uff0c\u91cd\u8981\u5185\u90e8\u6570\u636e\u7ed3\u6784\u53ca\u4ee3\u7801\u7247\u6bb5\u7b49\u5c42\u9762\u6df1\u5165\u4e86\u89e3\uff0c\u5728<span class=\"s1\">Redis<\/span>\u4f7f\u7528\u65b9\u9762\uff0c\u5f00\u53d1\u53ca\u8bbe\u8ba1\u4eba\u5458\u901a\u5e38\u9700\u8981\u5bf9<span class=\"s1\">Redis<\/span>\u6709\u4e00\u5b9a\u6df1\u5ea6\u7406\u89e3\uff0c\u5bf9\u4e1a\u52a1\u6a21\u578b\u8fdb\u884c\u76f8\u5e94\u7684\u6570\u636e\u7ed3\u6784\u9009\u578b\uff0c\u8fd8\u9700\u63d0\u524d\u9884\u4f30\u5185\u5b58\u4f7f\u7528\uff0c\u662f\u5426\u9700\u8981\u6301\u4e45\u5316\uff0c\u5206\u5e03\u5f0f\u7b49\u3002\u603b\u4f53\u6765\u8bf4\uff0c<span class=\"s1\">Redis<\/span>\u975e\u5e38\u9002\u5408\u4e0e\u4f20\u7edf\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ed3\u5408\u4f7f\u7528\uff0c\u505a\u9ad8\u6027\u80fd\u6570\u636e\u7f13\u5b58\uff0c\u8f7b\u91cf\u7ea7\u6d88\u606f\u961f\u5217\u53ca\u8de8\u673a\u5668\u5171\u4eab\u5185\u5b58\u3002\u5e0c\u671b\u672c\u6587\u5bf9<span class=\"s1\">Redis<\/span>\u5f00\u53d1\u4eba\u5458\u6709\u6240\u5e2e\u52a9\uff0c\u78b0\u5230\u4e00\u4e9b\u5b9e\u73b0\u7ec6\u8282\uff0c\u5efa\u8bae\u8fd8\u662f\u8981\u6df1\u5165\u5176\u6e90\u4ee3\u7801\u4e00\u63a2\u7a76\u7adf\u3002\u6709\u5173\u5176\u5b83<span class=\"s1\">Redis<\/span>\u7684\u547d\u4ee4\u64cd\u4f5c\u53ca\u5176\u5b83\u9ad8\u7ea7\u529f\u80fd\u5219\u53ef\u53c2\u8003<span class=\"s1\">Redis<\/span>\u5b98\u7f51\u3002<\/p>\n<p><strong><br \/>\n<\/strong><strong>\u516c\u4f17\u53f7\uff1a\u6280\u672f\u6781\u5ba2TechBooster<\/strong><\/p>\n<\/div>\n<\/div>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u4e86\u89e3Redis 2016\u5e7408\u670816<\/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":[24],"tags":[121],"class_list":["post-1537","post","type-post","status-publish","format-standard","hentry","category-value_docs","tag-05-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/1537","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=1537"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/1537\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=1537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=1537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=1537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}