{"id":4920,"date":"2020-03-24T10:49:03","date_gmt":"2020-03-24T02:49:03","guid":{"rendered":"https:\/\/www.xttblog.com\/?p=4920"},"modified":"2020-03-24T10:49:03","modified_gmt":"2020-03-24T02:49:03","slug":"2020-%e5%b9%b4%e6%9c%80%e6%96%b0%e7%89%88-68-%e9%81%93redis%e9%9d%a2%e8%af%95%e9%a2%98%ef%bc%8c20000-%e5%ad%97%e5%b9%b2%e8%b4%a7%ef%bc%8c%e8%b5%b6%e7%b4%a7%e6%94%b6%e8%97%8f%e8%b5%b7%e6%9d%a5%e5%a4%87","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=4920","title":{"rendered":"2020 \u5e74\u6700\u65b0\u7248 68 \u9053Redis\u9762\u8bd5\u9898\uff0c20000 \u5b57\u5e72\u8d27\uff0c\u8d76\u7d27\u6536\u85cf\u8d77\u6765\u5907\u7528\uff01"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Redis(Remote Dictionary Server) \u662f\u4e00\u4e2a\u4f7f\u7528 C \u8bed\u8a00\u7f16\u5199\u7684\uff0c\u5f00\u6e90\u7684\uff08BSD\u8bb8\u53ef\uff09\u9ad8\u6027\u80fd\u975e\u5173\u7cfb\u578b\uff08NoSQL\uff09\u7684\u952e\u503c\u5bf9\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis \u53ef\u4ee5\u5b58\u50a8\u952e\u548c\u4e94\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u503c\u4e4b\u95f4\u7684\u6620\u5c04\u3002\u952e\u7684\u7c7b\u578b\u53ea\u80fd\u4e3a\u5b57\u7b26\u4e32\uff0c\u503c\u652f\u6301\u4e94\u79cd\u6570\u636e\u7c7b\u578b\uff1a\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u96c6\u5408\u3001\u6563\u5217\u8868\u3001\u6709\u5e8f\u96c6\u5408\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0e\u4f20\u7edf\u6570\u636e\u5e93\u4e0d\u540c\u7684\u662f Redis \u7684\u6570\u636e\u662f\u5b58\u5728\u5185\u5b58\u4e2d\u7684\uff0c\u6240\u4ee5\u8bfb\u5199\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u56e0\u6b64 redis \u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7f13\u5b58\u65b9\u5411\uff0c\u6bcf\u79d2\u53ef\u4ee5\u5904\u7406\u8d85\u8fc7 10\u4e07\u6b21\u8bfb\u5199\u64cd\u4f5c\uff0c\u662f\u5df2\u77e5\u6027\u80fd\u6700\u5feb\u7684Key-Value DB\u3002\u53e6\u5916\uff0cRedis \u4e5f\u7ecf\u5e38\u7528\u6765\u505a\u5206\u5e03\u5f0f\u9501\u3002\u9664\u6b64\u4e4b\u5916\uff0cRedis \u652f\u6301\u4e8b\u52a1 \u3001\u6301\u4e45\u5316\u3001LUA\u811a\u672c\u3001LRU\u9a71\u52a8\u4e8b\u4ef6\u3001\u591a\u79cd\u96c6\u7fa4\u65b9\u6848\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u5929\u5c31\u6765\u8bb2\u8bb2 Redis \u7684\u9762\u8bd5\u9898\uff0c\u4e3a\u590d\u5de5\u540e\u7684\u9762\u8bd5\u505a\u597d\u51c6\u5907\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015585302.jpg\" alt=\"\" \/><figcaption>2020 \u6700\u65b0 Redis \u9762\u8bd5\u9898<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u6982\u8ff0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001Redis\u6709\u54ea\u4e9b\u4f18\u7f3a\u70b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f18\u70b9<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bfb\u5199\u6027\u80fd\u4f18\u5f02\uff0c Redis\u80fd\u8bfb\u7684\u901f\u5ea6\u662f110000\u6b21\/s\uff0c\u5199\u7684\u901f\u5ea6\u662f81000\u6b21\/s\u3002<\/li><li>\u652f\u6301\u6570\u636e\u6301\u4e45\u5316\uff0c\u652f\u6301AOF\u548cRDB\u4e24\u79cd\u6301\u4e45\u5316\u65b9\u5f0f\u3002<\/li><li>\u652f\u6301\u4e8b\u52a1\uff0cRedis\u7684\u6240\u6709\u64cd\u4f5c\u90fd\u662f\u539f\u5b50\u6027\u7684\uff0c\u540c\u65f6Redis\u8fd8\u652f\u6301\u5bf9\u51e0\u4e2a\u64cd\u4f5c\u5408\u5e76\u540e\u7684\u539f\u5b50\u6027\u6267\u884c\u3002<\/li><li>\u6570\u636e\u7ed3\u6784\u4e30\u5bcc\uff0c\u9664\u4e86\u652f\u6301string\u7c7b\u578b\u7684value\u5916\u8fd8\u652f\u6301hash\u3001set\u3001zset\u3001list\u7b49\u6570\u636e\u7ed3\u6784\u3002<\/li><li>\u652f\u6301\u4e3b\u4ece\u590d\u5236\uff0c\u4e3b\u673a\u4f1a\u81ea\u52a8\u5c06\u6570\u636e\u540c\u6b65\u5230\u4ece\u673a\uff0c\u53ef\u4ee5\u8fdb\u884c\u8bfb\u5199\u5206\u79bb\u3002<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f3a\u70b9<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u6570\u636e\u5e93\u5bb9\u91cf\u53d7\u5230\u7269\u7406\u5185\u5b58\u7684\u9650\u5236\uff0c\u4e0d\u80fd\u7528\u4f5c\u6d77\u91cf\u6570\u636e\u7684\u9ad8\u6027\u80fd\u8bfb\u5199\uff0c\u56e0\u6b64Redis\u9002\u5408\u7684\u573a\u666f\u4e3b\u8981\u5c40\u9650\u5728\u8f83\u5c0f\u6570\u636e\u91cf\u7684\u9ad8\u6027\u80fd\u64cd\u4f5c\u548c\u8fd0\u7b97\u4e0a\u3002<\/li><li>Redis \u4e0d\u5177\u5907\u81ea\u52a8\u5bb9\u9519\u548c\u6062\u590d\u529f\u80fd\uff0c\u4e3b\u673a\u4ece\u673a\u7684\u5b95\u673a\u90fd\u4f1a\u5bfc\u81f4\u524d\u7aef\u90e8\u5206\u8bfb\u5199\u8bf7\u6c42\u5931\u8d25\uff0c\u9700\u8981\u7b49\u5f85\u673a\u5668\u91cd\u542f\u6216\u8005\u624b\u52a8\u5207\u6362\u524d\u7aef\u7684IP\u624d\u80fd\u6062\u590d\u3002<\/li><li>\u4e3b\u673a\u5b95\u673a\uff0c\u5b95\u673a\u524d\u6709\u90e8\u5206\u6570\u636e\u672a\u80fd\u53ca\u65f6\u540c\u6b65\u5230\u4ece\u673a\uff0c\u5207\u6362IP\u540e\u8fd8\u4f1a\u5f15\u5165\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u95ee\u9898\uff0c\u964d\u4f4e\u4e86\u7cfb\u7edf\u7684\u53ef\u7528\u6027\u3002<\/li><li>Redis \u8f83\u96be\u652f\u6301\u5728\u7ebf\u6269\u5bb9\uff0c\u5728\u96c6\u7fa4\u5bb9\u91cf\u8fbe\u5230\u4e0a\u9650\u65f6\u5728\u7ebf\u6269\u5bb9\u4f1a\u53d8\u5f97\u5f88\u590d\u6742\u3002\u4e3a\u907f\u514d\u8fd9\u4e00\u95ee\u9898\uff0c\u8fd0\u7ef4\u4eba\u5458\u5728\u7cfb\u7edf\u4e0a\u7ebf\u65f6\u5fc5\u987b\u786e\u4fdd\u6709\u8db3\u591f\u7684\u7a7a\u95f4\uff0c\u8fd9\u5bf9\u8d44\u6e90\u9020\u6210\u4e86\u5f88\u5927\u7684\u6d6a\u8d39\u3002<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u4e3a\u4ec0\u4e48\u8981\u7528 Redis \/\u4e3a\u4ec0\u4e48\u8981\u7528\u7f13\u5b58<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u8981\u4ece\u201c\u9ad8\u6027\u80fd\u201d\u548c\u201c\u9ad8\u5e76\u53d1\u201d\u8fd9\u4e24\u70b9\u6765\u770b\u5f85\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u6027\u80fd\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u5982\u7528\u6237\u7b2c\u4e00\u6b21\u8bbf\u95ee\u6570\u636e\u5e93\u4e2d\u7684\u67d0\u4e9b\u6570\u636e\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u4f1a\u6bd4\u8f83\u6162\uff0c\u56e0\u4e3a\u662f\u4ece\u786c\u76d8\u4e0a\u8bfb\u53d6\u7684\u3002\u5c06\u8be5\u7528\u6237\u8bbf\u95ee\u7684\u6570\u636e\u5b58\u5728\u6570\u7f13\u5b58\u4e2d\uff0c\u8fd9\u6837\u4e0b\u4e00\u6b21\u518d\u8bbf\u95ee\u8fd9\u4e9b\u6570\u636e\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u76f4\u63a5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u4e86\u3002\u64cd\u4f5c\u7f13\u5b58\u5c31\u662f\u76f4\u63a5\u64cd\u4f5c\u5185\u5b58\uff0c\u6240\u4ee5\u901f\u5ea6\u76f8\u5f53\u5feb\u3002\u5982\u679c\u6570\u636e\u5e93\u4e2d\u7684\u5bf9\u5e94\u6570\u636e\u6539\u53d8\u7684\u4e4b\u540e\uff0c\u540c\u6b65\u6539\u53d8\u7f13\u5b58\u4e2d\u76f8\u5e94\u7684\u6570\u636e\u5373\u53ef\uff01<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015596079.jpg\" alt=\"\" \/><figcaption>Redis \u7684\u9ad8\u6027\u80fd\u7f13\u5b58\u67b6\u6784<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u5e76\u53d1\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u76f4\u63a5\u64cd\u4f5c\u7f13\u5b58\u80fd\u591f\u627f\u53d7\u7684\u8bf7\u6c42\u662f\u8fdc\u8fdc\u5927\u4e8e\u76f4\u63a5\u8bbf\u95ee\u6570\u636e\u5e93\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u8003\u8651\u628a\u6570\u636e\u5e93\u4e2d\u7684\u90e8\u5206\u6570\u636e\u8f6c\u79fb\u5230\u7f13\u5b58\u4e2d\u53bb\uff0c\u8fd9\u6837\u7528\u6237\u7684\u4e00\u90e8\u5206\u8bf7\u6c42\u4f1a\u76f4\u63a5\u5230\u7f13\u5b58\u8fd9\u91cc\u800c\u4e0d\u7528\u7ecf\u8fc7\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015605154.jpg\" alt=\"\" \/><figcaption>Redis \u7684\u9ad8\u5e76\u53d1\u80fd\u529b<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001\u4e3a\u4ec0\u4e48\u8981\u7528 Redis \u800c\u4e0d\u7528 map\/guava \u505a\u7f13\u5b58?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f13\u5b58\u5206\u4e3a\u672c\u5730\u7f13\u5b58\u548c\u5206\u5e03\u5f0f\u7f13\u5b58\u3002\u4ee5 Java \u4e3a\u4f8b\uff0c\u4f7f\u7528\u81ea\u5e26\u7684 map \u6216\u8005 guava \u5b9e\u73b0\u7684\u662f\u672c\u5730\u7f13\u5b58\uff0c\u6700\u4e3b\u8981\u7684\u7279\u70b9\u662f\u8f7b\u91cf\u4ee5\u53ca\u5feb\u901f\uff0c\u751f\u547d\u5468\u671f\u968f\u7740 jvm \u7684\u9500\u6bc1\u800c\u7ed3\u675f\uff0c\u5e76\u4e14\u5728\u591a\u5b9e\u4f8b\u7684\u60c5\u51b5\u4e0b\uff0c\u6bcf\u4e2a\u5b9e\u4f8b\u90fd\u9700\u8981\u5404\u81ea\u4fdd\u5b58\u4e00\u4efd\u7f13\u5b58\uff0c\u7f13\u5b58\u4e0d\u5177\u6709\u4e00\u81f4\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528 redis \u6216 memcached \u4e4b\u7c7b\u7684\u79f0\u4e3a\u5206\u5e03\u5f0f\u7f13\u5b58\uff0c\u5728\u591a\u5b9e\u4f8b\u7684\u60c5\u51b5\u4e0b\uff0c\u5404\u5b9e\u4f8b\u5171\u7528\u4e00\u4efd\u7f13\u5b58\u6570\u636e\uff0c\u7f13\u5b58\u5177\u6709\u4e00\u81f4\u6027\u3002\u7f3a\u70b9\u662f\u9700\u8981\u4fdd\u6301 redis \u6216 memcached\u670d\u52a1\u7684\u9ad8\u53ef\u7528\uff0c\u6574\u4e2a\u7a0b\u5e8f\u67b6\u6784\u4e0a\u8f83\u4e3a\u590d\u6742\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4\u3001Redis\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u5feb<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\uff09\u5b8c\u5168\u57fa\u4e8e\u5185\u5b58\uff0c\u7edd\u5927\u90e8\u5206\u8bf7\u6c42\u662f\u7eaf\u7cb9\u7684\u5185\u5b58\u64cd\u4f5c\uff0c\u975e\u5e38\u5feb\u901f\u3002\u6570\u636e\u5b58\u5728\u5185\u5b58\u4e2d\uff0c\u7c7b\u4f3c\u4e8e HashMap\uff0cHashMap \u7684\u4f18\u52bf\u5c31\u662f\u67e5\u627e\u548c\u64cd\u4f5c\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u90fd\u662fO(1)\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\uff09\u6570\u636e\u7ed3\u6784\u7b80\u5355\uff0c\u5bf9\u6570\u636e\u64cd\u4f5c\u4e5f\u7b80\u5355\uff0cRedis \u4e2d\u7684\u6570\u636e\u7ed3\u6784\u662f\u4e13\u95e8\u8fdb\u884c\u8bbe\u8ba1\u7684\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3\uff09\u91c7\u7528\u5355\u7ebf\u7a0b\uff0c\u907f\u514d\u4e86\u4e0d\u5fc5\u8981\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u7ade\u4e89\u6761\u4ef6\uff0c\u4e5f\u4e0d\u5b58\u5728\u591a\u8fdb\u7a0b\u6216\u8005\u591a\u7ebf\u7a0b\u5bfc\u81f4\u7684\u5207\u6362\u800c\u6d88\u8017 CPU\uff0c\u4e0d\u7528\u53bb\u8003\u8651\u5404\u79cd\u9501\u7684\u95ee\u9898\uff0c\u4e0d\u5b58\u5728\u52a0\u9501\u91ca\u653e\u9501\u64cd\u4f5c\uff0c\u6ca1\u6709\u56e0\u4e3a\u53ef\u80fd\u51fa\u73b0\u6b7b\u9501\u800c\u5bfc\u81f4\u7684\u6027\u80fd\u6d88\u8017\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4\uff09\u4f7f\u7528\u591a\u8def I\/O \u590d\u7528\u6a21\u578b\uff0c\u975e\u963b\u585e IO\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5\u4f7f\u7528\u5e95\u5c42\u6a21\u578b\u4e0d\u540c\uff0c\u5b83\u4eec\u4e4b\u95f4\u5e95\u5c42\u5b9e\u73b0\u65b9\u5f0f\u4ee5\u53ca\u4e0e\u5ba2\u6237\u7aef\u4e4b\u95f4\u901a\u4fe1\u7684\u5e94\u7528\u534f\u8bae\u4e0d\u4e00\u6837\uff0cRedis \u76f4\u63a5\u81ea\u5df1\u6784\u5efa\u4e86 VM \u673a\u5236 \uff0c\u56e0\u4e3a\u4e00\u822c\u7684\u7cfb\u7edf\u8c03\u7528\u7cfb\u7edf\u51fd\u6570\u7684\u8bdd\uff0c\u4f1a\u6d6a\u8d39\u4e00\u5b9a\u7684\u65f6\u95f4\u53bb\u79fb\u52a8\u548c\u8bf7\u6c42\uff1b<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6570\u636e\u7c7b\u578b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">5\u3001Redis\u6709\u54ea\u4e9b\u6570\u636e\u7c7b\u578b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u4e3b\u8981\u67095\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ecString\uff0cList\uff0cSet\uff0cZset\uff0cHash\uff0c\u6ee1\u8db3\u5927\u90e8\u5206\u7684\u4f7f\u7528\u8981\u6c42\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015618371.jpg\" alt=\"\" \/><figcaption>Redis \u7684\u6570\u636e\u7c7b\u578b<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">6\u3001Redis\u7684\u5e94\u7528\u573a\u666f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u603b\u7ed3\u4e00<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8ba1\u6570\u5668\uff1a\u53ef\u4ee5\u5bf9 String \u8fdb\u884c\u81ea\u589e\u81ea\u51cf\u8fd0\u7b97\uff0c\u4ece\u800c\u5b9e\u73b0\u8ba1\u6570\u5668\u529f\u80fd\u3002Redis \u8fd9\u79cd\u5185\u5b58\u578b\u6570\u636e\u5e93\u7684\u8bfb\u5199\u6027\u80fd\u975e\u5e38\u9ad8\uff0c\u5f88\u9002\u5408\u5b58\u50a8\u9891\u7e41\u8bfb\u5199\u7684\u8ba1\u6570\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f13\u5b58\uff1a\u5c06\u70ed\u70b9\u6570\u636e\u653e\u5230\u5185\u5b58\u4e2d\uff0c\u8bbe\u7f6e\u5185\u5b58\u7684\u6700\u5927\u4f7f\u7528\u91cf\u4ee5\u53ca\u6dd8\u6c70\u7b56\u7565\u6765\u4fdd\u8bc1\u7f13\u5b58\u7684\u547d\u4e2d\u7387\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f1a\u8bdd\u7f13\u5b58\uff1a\u53ef\u4ee5\u4f7f\u7528 Redis \u6765\u7edf\u4e00\u5b58\u50a8\u591a\u53f0\u5e94\u7528\u670d\u52a1\u5668\u7684\u4f1a\u8bdd\u4fe1\u606f\u3002\u5f53\u5e94\u7528\u670d\u52a1\u5668\u4e0d\u518d\u5b58\u50a8\u7528\u6237\u7684\u4f1a\u8bdd\u4fe1\u606f\uff0c\u4e5f\u5c31\u4e0d\u518d\u5177\u6709\u72b6\u6001\uff0c\u4e00\u4e2a\u7528\u6237\u53ef\u4ee5\u8bf7\u6c42\u4efb\u610f\u4e00\u4e2a\u5e94\u7528\u670d\u52a1\u5668\uff0c\u4ece\u800c\u66f4\u5bb9\u6613\u5b9e\u73b0\u9ad8\u53ef\u7528\u6027\u4ee5\u53ca\u53ef\u4f38\u7f29\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5168\u9875\u7f13\u5b58\uff08FPC\uff09\uff1a\u9664\u57fa\u672c\u7684\u4f1a\u8bddtoken\u4e4b\u5916\uff0cRedis\u8fd8\u63d0\u4f9b\u5f88\u7b80\u4fbf\u7684FPC\u5e73\u53f0\u3002\u4ee5Magento\u4e3a\u4f8b\uff0cMagento\u63d0\u4f9b\u4e00\u4e2a\u63d2\u4ef6\u6765\u4f7f\u7528Redis\u4f5c\u4e3a\u5168\u9875\u7f13\u5b58\u540e\u7aef\u3002\u6b64\u5916\uff0c\u5bf9WordPress\u7684\u7528\u6237\u6765\u8bf4\uff0cPantheon\u6709\u4e00\u4e2a\u975e\u5e38\u597d\u7684\u63d2\u4ef6 wp-redis\uff0c\u8fd9\u4e2a\u63d2\u4ef6\u80fd\u5e2e\u52a9\u4f60\u4ee5\u6700\u5feb\u901f\u5ea6\u52a0\u8f7d\u4f60\u66fe\u6d4f\u89c8\u8fc7\u7684\u9875\u9762\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u627e\u8868\uff1a\u4f8b\u5982 DNS \u8bb0\u5f55\u5c31\u5f88\u9002\u5408\u4f7f\u7528 Redis \u8fdb\u884c\u5b58\u50a8\u3002\u67e5\u627e\u8868\u548c\u7f13\u5b58\u7c7b\u4f3c\uff0c\u4e5f\u662f\u5229\u7528\u4e86 Redis \u5feb\u901f\u7684\u67e5\u627e\u7279\u6027\u3002\u4f46\u662f\u67e5\u627e\u8868\u7684\u5185\u5bb9\u4e0d\u80fd\u5931\u6548\uff0c\u800c\u7f13\u5b58\u7684\u5185\u5bb9\u53ef\u4ee5\u5931\u6548\uff0c\u56e0\u4e3a\u7f13\u5b58\u4e0d\u4f5c\u4e3a\u53ef\u9760\u7684\u6570\u636e\u6765\u6e90\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d88\u606f\u961f\u5217(\u53d1\u5e03\/\u8ba2\u9605\u529f\u80fd)\uff1aList \u662f\u4e00\u4e2a\u53cc\u5411\u94fe\u8868\uff0c\u53ef\u4ee5\u901a\u8fc7 lpush \u548c rpop \u5199\u5165\u548c\u8bfb\u53d6\u6d88\u606f\u3002\u4e0d\u8fc7\u6700\u597d\u4f7f\u7528 Kafka\u3001RabbitMQ \u7b49\u6d88\u606f\u4e2d\u95f4\u4ef6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u5e03\u5f0f\u9501\u5b9e\u73b0\uff1a\u5728\u5206\u5e03\u5f0f\u573a\u666f\u4e0b\uff0c\u65e0\u6cd5\u4f7f\u7528\u5355\u673a\u73af\u5883\u4e0b\u7684\u9501\u6765\u5bf9\u591a\u4e2a\u8282\u70b9\u4e0a\u7684\u8fdb\u7a0b\u8fdb\u884c\u540c\u6b65\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u81ea\u5e26\u7684 SETNX \u547d\u4ee4\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff0c\u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5b98\u65b9\u63d0\u4f9b\u7684 RedLock \u5206\u5e03\u5f0f\u9501\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u5b83\uff1aSet \u53ef\u4ee5\u5b9e\u73b0\u4ea4\u96c6\u3001\u5e76\u96c6\u7b49\u64cd\u4f5c\uff0c\u4ece\u800c\u5b9e\u73b0\u5171\u540c\u597d\u53cb\u7b49\u529f\u80fd\u3002ZSet \u53ef\u4ee5\u5b9e\u73b0\u6709\u5e8f\u6027\u64cd\u4f5c\uff0c\u4ece\u800c\u5b9e\u73b0\u6392\u884c\u699c\u7b49\u529f\u80fd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u603b\u7ed3\u4e8c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u76f8\u6bd4\u5176\u4ed6\u7f13\u5b58\uff0c\u6709\u4e00\u4e2a\u975e\u5e38\u5927\u7684\u4f18\u52bf\uff0c\u5c31\u662f\u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6570\u636e\u7c7b\u578b\u8bf4\u660estring\u5b57\u7b26\u4e32\uff0c\u6700\u7b80\u5355\u7684k-v\u5b58\u50a8hashhash\u683c\u5f0f\uff0cvalue\u4e3afield\u548cvalue\uff0c\u9002\u5408ID-Detail\u8fd9\u6837\u7684\u573a\u666f\u3002list\u7b80\u5355\u7684list\uff0c\u987a\u5e8f\u5217\u8868\uff0c\u652f\u6301\u9996\u4f4d\u6216\u8005\u672b\u5c3e\u63d2\u5165\u6570\u636eset\u65e0\u5e8flist\uff0c\u67e5\u627e\u901f\u5ea6\u5feb\uff0c\u9002\u5408\u4ea4\u96c6\u3001\u5e76\u96c6\u3001\u5dee\u96c6\u5904\u7406sorted set\u6709\u5e8f\u7684set<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u5b9e\uff0c\u901a\u8fc7\u4e0a\u9762\u7684\u6570\u636e\u7c7b\u578b\u7684\u7279\u6027\uff0c\u57fa\u672c\u5c31\u80fd\u60f3\u5230\u5408\u9002\u7684\u5e94\u7528\u573a\u666f\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">string\u2014\u2014\u9002\u5408\u6700\u7b80\u5355\u7684k-v\u5b58\u50a8\uff0c\u7c7b\u4f3c\u4e8ememcached\u7684\u5b58\u50a8\u7ed3\u6784\uff0c\u77ed\u4fe1\u9a8c\u8bc1\u7801\uff0c\u914d\u7f6e\u4fe1\u606f\u7b49\uff0c\u5c31\u7528\u8fd9\u79cd\u7c7b\u578b\u6765\u5b58\u50a8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">hash\u2014\u2014\u4e00\u822ckey\u4e3aID\u6216\u8005\u552f\u4e00\u6807\u793a\uff0cvalue\u5bf9\u5e94\u7684\u5c31\u662f\u8be6\u60c5\u4e86\u3002\u5982\u5546\u54c1\u8be6\u60c5\uff0c\u4e2a\u4eba\u4fe1\u606f\u8be6\u60c5\uff0c\u65b0\u95fb\u8be6\u60c5\u7b49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">list\u2014\u2014\u56e0\u4e3alist\u662f\u6709\u5e8f\u7684\uff0c\u6bd4\u8f83\u9002\u5408\u5b58\u50a8\u4e00\u4e9b\u6709\u5e8f\u4e14\u6570\u636e\u76f8\u5bf9\u56fa\u5b9a\u7684\u6570\u636e\u3002\u5982\u7701\u5e02\u533a\u8868\u3001\u5b57\u5178\u8868\u7b49\u3002\u56e0\u4e3alist\u662f\u6709\u5e8f\u7684\uff0c\u9002\u5408\u6839\u636e\u5199\u5165\u7684\u65f6\u95f4\u6765\u6392\u5e8f\uff0c\u5982\uff1a\u6700\u65b0\u7684***\uff0c\u6d88\u606f\u961f\u5217\u7b49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">set\u2014\u2014\u53ef\u4ee5\u7b80\u5355\u7684\u7406\u89e3\u4e3aID-List\u7684\u6a21\u5f0f\uff0c\u5982\u5fae\u535a\u4e2d\u4e00\u4e2a\u4eba\u6709\u54ea\u4e9b\u597d\u53cb\uff0cset\u6700\u725b\u7684\u5730\u65b9\u5728\u4e8e\uff0c\u53ef\u4ee5\u5bf9\u4e24\u4e2aset\u63d0\u4f9b\u4ea4\u96c6\u3001\u5e76\u96c6\u3001\u5dee\u96c6\u64cd\u4f5c\u3002\u4f8b\u5982\uff1a\u67e5\u627e\u4e24\u4e2a\u4eba\u5171\u540c\u7684\u597d\u53cb\u7b49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sorted Set\u2014\u2014\u662fset\u7684\u589e\u5f3a\u7248\u672c\uff0c\u589e\u52a0\u4e86\u4e00\u4e2ascore\u53c2\u6570\uff0c\u81ea\u52a8\u4f1a\u6839\u636escore\u7684\u503c\u8fdb\u884c\u6392\u5e8f\u3002\u6bd4\u8f83\u9002\u5408\u7c7b\u4f3c\u4e8etop 10\u7b49\u4e0d\u6839\u636e\u63d2\u5165\u7684\u65f6\u95f4\u6765\u6392\u5e8f\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u4e0a\u6240\u8ff0\uff0c\u867d\u7136Redis\u4e0d\u50cf\u5173\u7cfb\u6570\u636e\u5e93\u90a3\u4e48\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4f46\u662f\uff0c\u4e5f\u80fd\u9002\u5408\u5f88\u591a\u573a\u666f\uff0c\u6bd4\u4e00\u822c\u7684\u7f13\u5b58\u6570\u636e\u7ed3\u6784\u8981\u591a\u3002\u4e86\u89e3\u6bcf\u79cd\u6570\u636e\u7ed3\u6784\u9002\u5408\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u4e0d\u4ec5\u6709\u5229\u4e8e\u63d0\u5347\u5f00\u53d1\u6548\u7387\uff0c\u4e5f\u80fd\u6709\u6548\u5229\u7528Redis\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6301\u4e45\u5316<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">7\u3001\u4ec0\u4e48\u662fRedis\u6301\u4e45\u5316\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6301\u4e45\u5316\u5c31\u662f\u628a\u5185\u5b58\u7684\u6570\u636e\u5199\u5230\u78c1\u76d8\u4e2d\u53bb\uff0c\u9632\u6b62\u670d\u52a1\u5b95\u673a\u4e86\u5185\u5b58\u6570\u636e\u4e22\u5931\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">8\u3001Redis \u7684\u6301\u4e45\u5316\u673a\u5236\u662f\u4ec0\u4e48\uff1f\u5404\u81ea\u7684\u4f18\u7f3a\u70b9\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis \u63d0\u4f9b\u4e24\u79cd\u6301\u4e45\u5316\u673a\u5236 RDB\uff08\u9ed8\u8ba4\uff09 \u548c AOF \u673a\u5236:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">RDB\uff1a\u662fRedis DataBase\u7f29\u5199\u5feb\u7167<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">RDB\u662fRedis\u9ed8\u8ba4\u7684\u6301\u4e45\u5316\u65b9\u5f0f\u3002\u6309\u7167\u4e00\u5b9a\u7684\u65f6\u95f4\u5c06\u5185\u5b58\u7684\u6570\u636e\u4ee5\u5feb\u7167\u7684\u5f62\u5f0f\u4fdd\u5b58\u5230\u786c\u76d8\u4e2d\uff0c\u5bf9\u5e94\u4ea7\u751f\u7684\u6570\u636e\u6587\u4ef6\u4e3adump.rdb\u3002\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684save\u53c2\u6570\u6765\u5b9a\u4e49\u5feb\u7167\u7684\u5468\u671f\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015631364.jpg\" alt=\"\" \/><figcaption>rdbSave rdbLoad<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f18\u70b9\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001\u53ea\u6709\u4e00\u4e2a\u6587\u4ef6 dump.rdb\uff0c\u65b9\u4fbf\u6301\u4e45\u5316\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u5bb9\u707e\u6027\u597d\uff0c\u4e00\u4e2a\u6587\u4ef6\u53ef\u4ee5\u4fdd\u5b58\u5230\u5b89\u5168\u7684\u78c1\u76d8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001\u6027\u80fd\u6700\u5927\u5316\uff0cfork \u5b50\u8fdb\u7a0b\u6765\u5b8c\u6210\u5199\u64cd\u4f5c\uff0c\u8ba9\u4e3b\u8fdb\u7a0b\u7ee7\u7eed\u5904\u7406\u547d\u4ee4\uff0c\u6240\u4ee5\u662f IO \u6700\u5927\u5316\u3002\u4f7f\u7528\u5355\u72ec\u5b50\u8fdb\u7a0b\u6765\u8fdb\u884c\u6301\u4e45\u5316\uff0c\u4e3b\u8fdb\u7a0b\u4e0d\u4f1a\u8fdb\u884c\u4efb\u4f55 IO \u64cd\u4f5c\uff0c\u4fdd\u8bc1\u4e86 redis \u7684\u9ad8\u6027\u80fd<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4.\u76f8\u5bf9\u4e8e\u6570\u636e\u96c6\u5927\u65f6\uff0c\u6bd4 AOF \u7684\u542f\u52a8\u6548\u7387\u66f4\u9ad8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f3a\u70b9\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001\u6570\u636e\u5b89\u5168\u6027\u4f4e\u3002RDB \u662f\u95f4\u9694\u4e00\u6bb5\u65f6\u95f4\u8fdb\u884c\u6301\u4e45\u5316\uff0c\u5982\u679c\u6301\u4e45\u5316\u4e4b\u95f4 redis \u53d1\u751f\u6545\u969c\uff0c\u4f1a\u53d1\u751f\u6570\u636e\u4e22\u5931\u3002\u6240\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u66f4\u9002\u5408\u6570\u636e\u8981\u6c42\u4e0d\u4e25\u8c28\u7684\u65f6\u5019)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001AOF\uff08Append-only file)\u6301\u4e45\u5316\u65b9\u5f0f\uff1a\u662f\u6307\u6240\u6709\u7684\u547d\u4ee4\u884c\u8bb0\u5f55\u4ee5 redis \u547d\u4ee4\u8bf7 \u6c42\u534f\u8bae\u7684\u683c\u5f0f\u5b8c\u5168\u6301\u4e45\u5316\u5b58\u50a8)\u4fdd\u5b58\u4e3a aof \u6587\u4ef6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AOF\uff1a\u6301\u4e45\u5316<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AOF\u6301\u4e45\u5316(\u5373Append Only File\u6301\u4e45\u5316)\uff0c\u5219\u662f\u5c06Redis\u6267\u884c\u7684\u6bcf\u6b21\u5199\u547d\u4ee4\u8bb0\u5f55\u5230\u5355\u72ec\u7684\u65e5\u5fd7\u6587\u4ef6\u4e2d\uff0c\u5f53\u91cd\u542fRedis\u4f1a\u91cd\u65b0\u5c06\u6301\u4e45\u5316\u7684\u65e5\u5fd7\u4e2d\u6587\u4ef6\u6062\u590d\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u4e24\u79cd\u65b9\u5f0f\u540c\u65f6\u5f00\u542f\u65f6\uff0c\u6570\u636e\u6062\u590dRedis\u4f1a\u4f18\u5148\u9009\u62e9AOF\u6062\u590d\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015640876.jpg\" alt=\"\" \/><figcaption>flushAppendOnlyFile AOF<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f18\u70b9\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001\u6570\u636e\u5b89\u5168\uff0caof \u6301\u4e45\u5316\u53ef\u4ee5\u914d\u7f6e appendfsync \u5c5e\u6027\uff0c\u6709 always\uff0c\u6bcf\u8fdb\u884c\u4e00\u6b21 \u547d\u4ee4\u64cd\u4f5c\u5c31\u8bb0\u5f55\u5230 aof \u6587\u4ef6\u4e2d\u4e00\u6b21\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u901a\u8fc7 append \u6a21\u5f0f\u5199\u6587\u4ef6\uff0c\u5373\u4f7f\u4e2d\u9014\u670d\u52a1\u5668\u5b95\u673a\uff0c\u53ef\u4ee5\u901a\u8fc7 redis-check-aof \u5de5\u5177\u89e3\u51b3\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001AOF \u673a\u5236\u7684 rewrite \u6a21\u5f0f\u3002AOF \u6587\u4ef6\u6ca1\u88ab rewrite \u4e4b\u524d\uff08\u6587\u4ef6\u8fc7\u5927\u65f6\u4f1a\u5bf9\u547d\u4ee4 \u8fdb\u884c\u5408\u5e76\u91cd\u5199\uff09\uff0c\u53ef\u4ee5\u5220\u9664\u5176\u4e2d\u7684\u67d0\u4e9b\u547d\u4ee4\uff08\u6bd4\u5982\u8bef\u64cd\u4f5c\u7684 flushall\uff09)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f3a\u70b9\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001AOF \u6587\u4ef6\u6bd4 RDB \u6587\u4ef6\u5927\uff0c\u4e14\u6062\u590d\u901f\u5ea6\u6162\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u6570\u636e\u96c6\u5927\u7684\u65f6\u5019\uff0c\u6bd4 rdb \u542f\u52a8\u6548\u7387\u4f4e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f18\u7f3a\u70b9\u662f\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AOF\u6587\u4ef6\u6bd4RDB\u66f4\u65b0\u9891\u7387\u9ad8\uff0c\u4f18\u5148\u4f7f\u7528AOF\u8fd8\u539f\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AOF\u6bd4RDB\u66f4\u5b89\u5168\u4e5f\u66f4\u5927<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">RDB\u6027\u80fd\u6bd4AOF\u597d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4e24\u4e2a\u90fd\u914d\u4e86\u4f18\u5148\u52a0\u8f7dAOF<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">9\u3001\u5982\u4f55\u9009\u62e9\u5408\u9002\u7684\u6301\u4e45\u5316\u65b9\u5f0f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u6765\u8bf4\uff0c \u5982\u679c\u60f3\u8fbe\u5230\u8db3\u4ee5\u5ab2\u7f8ePostgreSQL\u7684\u6570\u636e\u5b89\u5168\u6027\uff0c\u4f60\u5e94\u8be5\u540c\u65f6\u4f7f\u7528\u4e24\u79cd\u6301\u4e45\u5316\u529f\u80fd\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5f53 Redis \u91cd\u542f\u7684\u65f6\u5019\u4f1a\u4f18\u5148\u8f7d\u5165AOF\u6587\u4ef6\u6765\u6062\u590d\u539f\u59cb\u7684\u6570\u636e\uff0c\u56e0\u4e3a\u5728\u901a\u5e38\u60c5\u51b5\u4e0bAOF\u6587\u4ef6\u4fdd\u5b58\u7684\u6570\u636e\u96c6\u8981\u6bd4RDB\u6587\u4ef6\u4fdd\u5b58\u7684\u6570\u636e\u96c6\u8981\u5b8c\u6574\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u975e\u5e38\u5173\u5fc3\u4f60\u7684\u6570\u636e\uff0c \u4f46\u4ecd\u7136\u53ef\u4ee5\u627f\u53d7\u6570\u5206\u949f\u4ee5\u5185\u7684\u6570\u636e\u4e22\u5931\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5\u53ea\u4f7f\u7528RDB\u6301\u4e45\u5316\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u5f88\u591a\u7528\u6237\u90fd\u53ea\u4f7f\u7528AOF\u6301\u4e45\u5316\uff0c\u4f46\u5e76\u4e0d\u63a8\u8350\u8fd9\u79cd\u65b9\u5f0f\uff0c\u56e0\u4e3a\u5b9a\u65f6\u751f\u6210RDB\u5feb\u7167\uff08snapshot\uff09\u975e\u5e38\u4fbf\u4e8e\u8fdb\u884c\u6570\u636e\u5e93\u5907\u4efd\uff0c \u5e76\u4e14 RDB \u6062\u590d\u6570\u636e\u96c6\u7684\u901f\u5ea6\u4e5f\u8981\u6bd4AOF\u6062\u590d\u7684\u901f\u5ea6\u8981\u5feb\uff0c\u9664\u6b64\u4e4b\u5916\uff0c\u4f7f\u7528RDB\u8fd8\u53ef\u4ee5\u907f\u514dAOF\u7a0b\u5e8f\u7684bug\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u53ea\u5e0c\u671b\u4f60\u7684\u6570\u636e\u5728\u670d\u52a1\u5668\u8fd0\u884c\u7684\u65f6\u5019\u5b58\u5728\uff0c\u4f60\u4e5f\u53ef\u4ee5\u4e0d\u4f7f\u7528\u4efb\u4f55\u6301\u4e45\u5316\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">10\u3001Redis\u6301\u4e45\u5316\u6570\u636e\u548c\u7f13\u5b58\u600e\u4e48\u505a\u6269\u5bb9\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679cRedis\u88ab\u5f53\u505a\u7f13\u5b58\u4f7f\u7528\uff0c\u4f7f\u7528\u4e00\u81f4\u6027\u54c8\u5e0c\u5b9e\u73b0\u52a8\u6001\u6269\u5bb9\u7f29\u5bb9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679cRedis\u88ab\u5f53\u505a\u4e00\u4e2a\u6301\u4e45\u5316\u5b58\u50a8\u4f7f\u7528\uff0c\u5fc5\u987b\u4f7f\u7528\u56fa\u5b9a\u7684keys-to-nodes\u6620\u5c04\u5173\u7cfb\uff0c\u8282\u70b9\u7684\u6570\u91cf\u4e00\u65e6\u786e\u5b9a\u4e0d\u80fd\u53d8\u5316\u3002\u5426\u5219\u7684\u8bdd(\u5373Redis\u8282\u70b9\u9700\u8981\u52a8\u6001\u53d8\u5316\u7684\u60c5\u51b5\uff09\uff0c\u5fc5\u987b\u4f7f\u7528\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u8fdb\u884c\u6570\u636e\u518d\u5e73\u8861\u7684\u4e00\u5957\u7cfb\u7edf\uff0c\u800c\u5f53\u524d\u53ea\u6709Redis\u96c6\u7fa4\u53ef\u4ee5\u505a\u5230\u8fd9\u6837\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8fc7\u671f\u952e\u7684\u5220\u9664\u7b56\u7565<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">11\u3001Redis\u7684\u8fc7\u671f\u952e\u7684\u5220\u9664\u7b56\u7565<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u90fd\u77e5\u9053\uff0cRedis\u662fkey-value\u6570\u636e\u5e93\uff0c\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6eRedis\u4e2d\u7f13\u5b58\u7684key\u7684\u8fc7\u671f\u65f6\u95f4\u3002Redis\u7684\u8fc7\u671f\u7b56\u7565\u5c31\u662f\u6307\u5f53Redis\u4e2d\u7f13\u5b58\u7684key\u8fc7\u671f\u4e86\uff0cRedis\u5982\u4f55\u5904\u7406\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fc7\u671f\u7b56\u7565\u901a\u5e38\u6709\u4ee5\u4e0b\u4e09\u79cd\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9a\u65f6\u8fc7\u671f\uff1a\u6bcf\u4e2a\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u7684key\u90fd\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u5230\u8fc7\u671f\u65f6\u95f4\u5c31\u4f1a\u7acb\u5373\u6e05\u9664\u3002\u8be5\u7b56\u7565\u53ef\u4ee5\u7acb\u5373\u6e05\u9664\u8fc7\u671f\u7684\u6570\u636e\uff0c\u5bf9\u5185\u5b58\u5f88\u53cb\u597d\uff1b\u4f46\u662f\u4f1a\u5360\u7528\u5927\u91cf\u7684CPU\u8d44\u6e90\u53bb\u5904\u7406\u8fc7\u671f\u7684\u6570\u636e\uff0c\u4ece\u800c\u5f71\u54cd\u7f13\u5b58\u7684\u54cd\u5e94\u65f6\u95f4\u548c\u541e\u5410\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u60f0\u6027\u8fc7\u671f\uff1a\u53ea\u6709\u5f53\u8bbf\u95ee\u4e00\u4e2akey\u65f6\uff0c\u624d\u4f1a\u5224\u65ad\u8be5key\u662f\u5426\u5df2\u8fc7\u671f\uff0c\u8fc7\u671f\u5219\u6e05\u9664\u3002\u8be5\u7b56\u7565\u53ef\u4ee5\u6700\u5927\u5316\u5730\u8282\u7701CPU\u8d44\u6e90\uff0c\u5374\u5bf9\u5185\u5b58\u975e\u5e38\u4e0d\u53cb\u597d\u3002\u6781\u7aef\u60c5\u51b5\u53ef\u80fd\u51fa\u73b0\u5927\u91cf\u7684\u8fc7\u671fkey\u6ca1\u6709\u518d\u6b21\u88ab\u8bbf\u95ee\uff0c\u4ece\u800c\u4e0d\u4f1a\u88ab\u6e05\u9664\uff0c\u5360\u7528\u5927\u91cf\u5185\u5b58\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9a\u671f\u8fc7\u671f\uff1a\u6bcf\u9694\u4e00\u5b9a\u7684\u65f6\u95f4\uff0c\u4f1a\u626b\u63cf\u4e00\u5b9a\u6570\u91cf\u7684\u6570\u636e\u5e93\u7684expires\u5b57\u5178\u4e2d\u4e00\u5b9a\u6570\u91cf\u7684key\uff0c\u5e76\u6e05\u9664\u5176\u4e2d\u5df2\u8fc7\u671f\u7684key\u3002\u8be5\u7b56\u7565\u662f\u524d\u4e24\u8005\u7684\u4e00\u4e2a\u6298\u4e2d\u65b9\u6848\u3002\u901a\u8fc7\u8c03\u6574\u5b9a\u65f6\u626b\u63cf\u7684\u65f6\u95f4\u95f4\u9694\u548c\u6bcf\u6b21\u626b\u63cf\u7684\u9650\u5b9a\u8017\u65f6\uff0c\u53ef\u4ee5\u5728\u4e0d\u540c\u60c5\u51b5\u4e0b\u4f7f\u5f97CPU\u548c\u5185\u5b58\u8d44\u6e90\u8fbe\u5230\u6700\u4f18\u7684\u5e73\u8861\u6548\u679c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">(expires\u5b57\u5178\u4f1a\u4fdd\u5b58\u6240\u6709\u8bbe\u7f6e\u4e86\u8fc7\u671f\u65f6\u95f4\u7684key\u7684\u8fc7\u671f\u65f6\u95f4\u6570\u636e\uff0c\u5176\u4e2d\uff0ckey\u662f\u6307\u5411\u952e\u7a7a\u95f4\u4e2d\u7684\u67d0\u4e2a\u952e\u7684\u6307\u9488\uff0cvalue\u662f\u8be5\u952e\u7684\u6beb\u79d2\u7cbe\u5ea6\u7684UNIX\u65f6\u95f4\u6233\u8868\u793a\u7684\u8fc7\u671f\u65f6\u95f4\u3002\u952e\u7a7a\u95f4\u662f\u6307\u8be5Redis\u96c6\u7fa4\u4e2d\u4fdd\u5b58\u7684\u6240\u6709\u952e\u3002)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u4e2d\u540c\u65f6\u4f7f\u7528\u4e86\u60f0\u6027\u8fc7\u671f\u548c\u5b9a\u671f\u8fc7\u671f\u4e24\u79cd\u8fc7\u671f\u7b56\u7565\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">12\u3001Redis key\u7684\u8fc7\u671f\u65f6\u95f4\u548c\u6c38\u4e45\u6709\u6548\u5206\u522b\u600e\u4e48\u8bbe\u7f6e\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">EXPIRE\u548cPERSIST\u547d\u4ee4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">13\u3001\u6211\u4eec\u77e5\u9053\u901a\u8fc7expire\u6765\u8bbe\u7f6ekey \u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u90a3\u4e48\u5bf9\u8fc7\u671f\u7684\u6570\u636e\u600e\u4e48\u5904\u7406\u5462?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9664\u4e86\u7f13\u5b58\u670d\u52a1\u5668\u81ea\u5e26\u7684\u7f13\u5b58\u5931\u6548\u7b56\u7565\u4e4b\u5916\uff08Redis\u9ed8\u8ba4\u7684\u67096\u4e2d\u7b56\u7565\u53ef\u4f9b\u9009\u62e9\uff09\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u7684\u4e1a\u52a1\u9700\u6c42\u8fdb\u884c\u81ea\u5b9a\u4e49\u7684\u7f13\u5b58\u6dd8\u6c70\uff0c\u5e38\u89c1\u7684\u7b56\u7565\u6709\u4e24\u79cd\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9a\u65f6\u53bb\u6e05\u7406\u8fc7\u671f\u7684\u7f13\u5b58\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u6709\u7528\u6237\u8bf7\u6c42\u8fc7\u6765\u65f6\uff0c\u518d\u5224\u65ad\u8fd9\u4e2a\u8bf7\u6c42\u6240\u7528\u5230\u7684\u7f13\u5b58\u662f\u5426\u8fc7\u671f\uff0c\u8fc7\u671f\u7684\u8bdd\u5c31\u53bb\u5e95\u5c42\u7cfb\u7edf\u5f97\u5230\u65b0\u6570\u636e\u5e76\u66f4\u65b0\u7f13\u5b58\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e24\u8005\u5404\u6709\u4f18\u52a3\uff0c\u7b2c\u4e00\u79cd\u7684\u7f3a\u70b9\u662f\u7ef4\u62a4\u5927\u91cf\u7f13\u5b58\u7684key\u662f\u6bd4\u8f83\u9ebb\u70e6\u7684\uff0c\u7b2c\u4e8c\u79cd\u7684\u7f3a\u70b9\u5c31\u662f\u6bcf\u6b21\u7528\u6237\u8bf7\u6c42\u8fc7\u6765\u90fd\u8981\u5224\u65ad\u7f13\u5b58\u5931\u6548\uff0c\u903b\u8f91\u76f8\u5bf9\u6bd4\u8f83\u590d\u6742\uff01\u5177\u4f53\u7528\u54ea\u79cd\u65b9\u6848\uff0c\u5927\u5bb6\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u5e94\u7528\u573a\u666f\u6765\u6743\u8861\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5185\u5b58\u76f8\u5173<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">14\u3001MySQL\u91cc\u67092000w\u6570\u636e\uff0credis\u4e2d\u53ea\u5b5820w\u7684\u6570\u636e\uff0c\u5982\u4f55\u4fdd\u8bc1redis\u4e2d\u7684\u6570\u636e\u90fd\u662f\u70ed\u70b9\u6570\u636e\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">redis\u5185\u5b58\u6570\u636e\u96c6\u5927\u5c0f\u4e0a\u5347\u5230\u4e00\u5b9a\u5927\u5c0f\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u65bd\u884c\u6570\u636e\u6dd8\u6c70\u7b56\u7565\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">15\u3001Redis\u7684\u5185\u5b58\u6dd8\u6c70\u7b56\u7565\u6709\u54ea\u4e9b\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u7684\u5185\u5b58\u6dd8\u6c70\u7b56\u7565\u662f\u6307\u5728Redis\u7684\u7528\u4e8e\u7f13\u5b58\u7684\u5185\u5b58\u4e0d\u8db3\u65f6\uff0c\u600e\u4e48\u5904\u7406\u9700\u8981\u65b0\u5199\u5165\u4e14\u9700\u8981\u7533\u8bf7\u989d\u5916\u7a7a\u95f4\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5168\u5c40\u7684\u952e\u7a7a\u95f4\u9009\u62e9\u6027\u79fb\u9664<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">noeviction\uff1a\u5f53\u5185\u5b58\u4e0d\u8db3\u4ee5\u5bb9\u7eb3\u65b0\u5199\u5165\u6570\u636e\u65f6\uff0c\u65b0\u5199\u5165\u64cd\u4f5c\u4f1a\u62a5\u9519\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">allkeys-lru\uff1a\u5f53\u5185\u5b58\u4e0d\u8db3\u4ee5\u5bb9\u7eb3\u65b0\u5199\u5165\u6570\u636e\u65f6\uff0c\u5728\u952e\u7a7a\u95f4\u4e2d\uff0c\u79fb\u9664\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684key\u3002\uff08\u8fd9\u4e2a\u662f\u6700\u5e38\u7528\u7684\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">allkeys-random\uff1a\u5f53\u5185\u5b58\u4e0d\u8db3\u4ee5\u5bb9\u7eb3\u65b0\u5199\u5165\u6570\u636e\u65f6\uff0c\u5728\u952e\u7a7a\u95f4\u4e2d\uff0c\u968f\u673a\u79fb\u9664\u67d0\u4e2akey\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u7684\u952e\u7a7a\u95f4\u9009\u62e9\u6027\u79fb\u9664<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">volatile-lru\uff1a\u5f53\u5185\u5b58\u4e0d\u8db3\u4ee5\u5bb9\u7eb3\u65b0\u5199\u5165\u6570\u636e\u65f6\uff0c\u5728\u8bbe\u7f6e\u4e86\u8fc7\u671f\u65f6\u95f4\u7684\u952e\u7a7a\u95f4\u4e2d\uff0c\u79fb\u9664\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684key\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">volatile-random\uff1a\u5f53\u5185\u5b58\u4e0d\u8db3\u4ee5\u5bb9\u7eb3\u65b0\u5199\u5165\u6570\u636e\u65f6\uff0c\u5728\u8bbe\u7f6e\u4e86\u8fc7\u671f\u65f6\u95f4\u7684\u952e\u7a7a\u95f4\u4e2d\uff0c\u968f\u673a\u79fb\u9664\u67d0\u4e2akey\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">volatile-ttl\uff1a\u5f53\u5185\u5b58\u4e0d\u8db3\u4ee5\u5bb9\u7eb3\u65b0\u5199\u5165\u6570\u636e\u65f6\uff0c\u5728\u8bbe\u7f6e\u4e86\u8fc7\u671f\u65f6\u95f4\u7684\u952e\u7a7a\u95f4\u4e2d\uff0c\u6709\u66f4\u65e9\u8fc7\u671f\u65f6\u95f4\u7684key\u4f18\u5148\u79fb\u9664\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u603b\u7ed3<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u7684\u5185\u5b58\u6dd8\u6c70\u7b56\u7565\u7684\u9009\u53d6\u5e76\u4e0d\u4f1a\u5f71\u54cd\u8fc7\u671f\u7684key\u7684\u5904\u7406\u3002\u5185\u5b58\u6dd8\u6c70\u7b56\u7565\u7528\u4e8e\u5904\u7406\u5185\u5b58\u4e0d\u8db3\u65f6\u7684\u9700\u8981\u7533\u8bf7\u989d\u5916\u7a7a\u95f4\u7684\u6570\u636e\uff1b\u8fc7\u671f\u7b56\u7565\u7528\u4e8e\u5904\u7406\u8fc7\u671f\u7684\u7f13\u5b58\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">16\u3001Redis\u4e3b\u8981\u6d88\u8017\u4ec0\u4e48\u7269\u7406\u8d44\u6e90\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5185\u5b58\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">17\u3001Redis\u7684\u5185\u5b58\u7528\u5b8c\u4e86\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u8fbe\u5230\u8bbe\u7f6e\u7684\u4e0a\u9650\uff0cRedis\u7684\u5199\u547d\u4ee4\u4f1a\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\uff08\u4f46\u662f\u8bfb\u547d\u4ee4\u8fd8\u53ef\u4ee5\u6b63\u5e38\u8fd4\u56de\u3002\uff09\u6216\u8005\u4f60\u53ef\u4ee5\u914d\u7f6e\u5185\u5b58\u6dd8\u6c70\u673a\u5236\uff0c\u5f53Redis\u8fbe\u5230\u5185\u5b58\u4e0a\u9650\u65f6\u4f1a\u51b2\u5237\u6389\u65e7\u7684\u5185\u5bb9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">18\u3001Redis\u5982\u4f55\u505a\u5185\u5b58\u4f18\u5316\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u597d\u597d\u5229\u7528Hash,list,sorted set,set\u7b49\u96c6\u5408\u7c7b\u578b\u6570\u636e\uff0c\u56e0\u4e3a\u901a\u5e38\u60c5\u51b5\u4e0b\u5f88\u591a\u5c0f\u7684Key-Value\u53ef\u4ee5\u7528\u66f4\u7d27\u51d1\u7684\u65b9\u5f0f\u5b58\u653e\u5230\u4e00\u8d77\u3002\u5c3d\u53ef\u80fd\u4f7f\u7528\u6563\u5217\u8868\uff08hashes\uff09\uff0c\u6563\u5217\u8868\uff08\u662f\u8bf4\u6563\u5217\u8868\u91cc\u9762\u5b58\u50a8\u7684\u6570\u5c11\uff09\u4f7f\u7528\u7684\u5185\u5b58\u975e\u5e38\u5c0f\uff0c\u6240\u4ee5\u4f60\u5e94\u8be5\u5c3d\u53ef\u80fd\u7684\u5c06\u4f60\u7684\u6570\u636e\u6a21\u578b\u62bd\u8c61\u5230\u4e00\u4e2a\u6563\u5217\u8868\u91cc\u9762\u3002\u6bd4\u5982\u4f60\u7684web\u7cfb\u7edf\u4e2d\u6709\u4e00\u4e2a\u7528\u6237\u5bf9\u8c61\uff0c\u4e0d\u8981\u4e3a\u8fd9\u4e2a\u7528\u6237\u7684\u540d\u79f0\uff0c\u59d3\u6c0f\uff0c\u90ae\u7bb1\uff0c\u5bc6\u7801\u8bbe\u7f6e\u5355\u72ec\u7684key\uff0c\u800c\u662f\u5e94\u8be5\u628a\u8fd9\u4e2a\u7528\u6237\u7684\u6240\u6709\u4fe1\u606f\u5b58\u50a8\u5230\u4e00\u5f20\u6563\u5217\u8868\u91cc\u9762\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ebf\u7a0b\u6a21\u578b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">19\u3001Redis\u7ebf\u7a0b\u6a21\u578b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u57fa\u4e8eReactor\u6a21\u5f0f\u5f00\u53d1\u4e86\u7f51\u7edc\u4e8b\u4ef6\u5904\u7406\u5668\uff0c\u8fd9\u4e2a\u5904\u7406\u5668\u88ab\u79f0\u4e3a\u6587\u4ef6\u4e8b\u4ef6\u5904\u7406\u5668\uff08file event handler\uff09\u3002\u5b83\u7684\u7ec4\u6210\u7ed3\u6784\u4e3a4\u90e8\u5206\uff1a\u591a\u4e2a\u5957\u63a5\u5b57\u3001IO\u591a\u8def\u590d\u7528\u7a0b\u5e8f\u3001\u6587\u4ef6\u4e8b\u4ef6\u5206\u6d3e\u5668\u3001\u4e8b\u4ef6\u5904\u7406\u5668\u3002\u56e0\u4e3a\u6587\u4ef6\u4e8b\u4ef6\u5206\u6d3e\u5668\u961f\u5217\u7684\u6d88\u8d39\u662f\u5355\u7ebf\u7a0b\u7684\uff0c\u6240\u4ee5Redis\u624d\u53eb\u5355\u7ebf\u7a0b\u6a21\u578b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6587\u4ef6\u4e8b\u4ef6\u5904\u7406\u5668\u4f7f\u7528 I\/O \u591a\u8def\u590d\u7528\uff08multiplexing\uff09\u7a0b\u5e8f\u6765\u540c\u65f6\u76d1\u542c\u591a\u4e2a\u5957\u63a5\u5b57\uff0c \u5e76\u6839\u636e\u5957\u63a5\u5b57\u76ee\u524d\u6267\u884c\u7684\u4efb\u52a1\u6765\u4e3a\u5957\u63a5\u5b57\u5173\u8054\u4e0d\u540c\u7684\u4e8b\u4ef6\u5904\u7406\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u88ab\u76d1\u542c\u7684\u5957\u63a5\u5b57\u51c6\u5907\u597d\u6267\u884c\u8fde\u63a5\u5e94\u7b54\uff08accept\uff09\u3001\u8bfb\u53d6\uff08read\uff09\u3001\u5199\u5165\uff08write\uff09\u3001\u5173\u95ed\uff08close\uff09\u7b49\u64cd\u4f5c\u65f6\uff0c \u4e0e\u64cd\u4f5c\u76f8\u5bf9\u5e94\u7684\u6587\u4ef6\u4e8b\u4ef6\u5c31\u4f1a\u4ea7\u751f\uff0c \u8fd9\u65f6\u6587\u4ef6\u4e8b\u4ef6\u5904\u7406\u5668\u5c31\u4f1a\u8c03\u7528\u5957\u63a5\u5b57\u4e4b\u524d\u5173\u8054\u597d\u7684\u4e8b\u4ef6\u5904\u7406\u5668\u6765\u5904\u7406\u8fd9\u4e9b\u4e8b\u4ef6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u867d\u7136\u6587\u4ef6\u4e8b\u4ef6\u5904\u7406\u5668\u4ee5\u5355\u7ebf\u7a0b\u65b9\u5f0f\u8fd0\u884c\uff0c \u4f46\u901a\u8fc7\u4f7f\u7528 I\/O \u591a\u8def\u590d\u7528\u7a0b\u5e8f\u6765\u76d1\u542c\u591a\u4e2a\u5957\u63a5\u5b57\uff0c \u6587\u4ef6\u4e8b\u4ef6\u5904\u7406\u5668\u65e2\u5b9e\u73b0\u4e86\u9ad8\u6027\u80fd\u7684\u7f51\u7edc\u901a\u4fe1\u6a21\u578b\uff0c \u53c8\u53ef\u4ee5\u5f88\u597d\u5730\u4e0e redis \u670d\u52a1\u5668\u4e2d\u5176\u4ed6\u540c\u6837\u4ee5\u5355\u7ebf\u7a0b\u65b9\u5f0f\u8fd0\u884c\u7684\u6a21\u5757\u8fdb\u884c\u5bf9\u63a5\uff0c \u8fd9\u4fdd\u6301\u4e86 Redis \u5185\u90e8\u5355\u7ebf\u7a0b\u8bbe\u8ba1\u7684\u7b80\u5355\u6027\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8b\u52a1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">20\u3001\u4ec0\u4e48\u662f\u4e8b\u52a1\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u9694\u79bb\u64cd\u4f5c\uff1a\u4e8b\u52a1\u4e2d\u7684\u6240\u6709\u547d\u4ee4\u90fd\u4f1a\u5e8f\u5217\u5316\u3001\u6309\u987a\u5e8f\u5730\u6267\u884c\u3002\u4e8b\u52a1\u5728\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4e0d\u4f1a\u88ab\u5176\u4ed6\u5ba2\u6237\u7aef\u53d1\u9001\u6765\u7684\u547d\u4ee4\u8bf7\u6c42\u6240\u6253\u65ad\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1\u662f\u4e00\u4e2a\u539f\u5b50\u64cd\u4f5c\uff1a\u4e8b\u52a1\u4e2d\u7684\u547d\u4ee4\u8981\u4e48\u5168\u90e8\u88ab\u6267\u884c\uff0c\u8981\u4e48\u5168\u90e8\u90fd\u4e0d\u6267\u884c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">21\u3001Redis\u4e8b\u52a1\u7684\u6982\u5ff5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis \u4e8b\u52a1\u7684\u672c\u8d28\u662f\u901a\u8fc7MULTI\u3001EXEC\u3001WATCH\u7b49\u4e00\u7ec4\u547d\u4ee4\u7684\u96c6\u5408\u3002\u4e8b\u52a1\u652f\u6301\u4e00\u6b21\u6267\u884c\u591a\u4e2a\u547d\u4ee4\uff0c\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u6240\u6709\u547d\u4ee4\u90fd\u4f1a\u88ab\u5e8f\u5217\u5316\u3002\u5728\u4e8b\u52a1\u6267\u884c\u8fc7\u7a0b\uff0c\u4f1a\u6309\u7167\u987a\u5e8f\u4e32\u884c\u5316\u6267\u884c\u961f\u5217\u4e2d\u7684\u547d\u4ee4\uff0c\u5176\u4ed6\u5ba2\u6237\u7aef\u63d0\u4ea4\u7684\u547d\u4ee4\u8bf7\u6c42\u4e0d\u4f1a\u63d2\u5165\u5230\u4e8b\u52a1\u6267\u884c\u547d\u4ee4\u5e8f\u5217\u4e2d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u603b\u7ed3\u8bf4\uff1aredis\u4e8b\u52a1\u5c31\u662f\u4e00\u6b21\u6027\u3001\u987a\u5e8f\u6027\u3001\u6392\u4ed6\u6027\u7684\u6267\u884c\u4e00\u4e2a\u961f\u5217\u4e2d\u7684\u4e00\u7cfb\u5217\u547d\u4ee4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">22\u3001Redis\u4e8b\u52a1\u7684\u4e09\u4e2a\u9636\u6bb5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1\u5f00\u59cb MULTI<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u547d\u4ee4\u5165\u961f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1\u6267\u884c EXEC<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u670d\u52a1\u7aef\u6536\u5230\u6709EXEC\u3001DISCARD\u3001WATCH\u3001MULTI\u4e4b\u5916\u7684\u8bf7\u6c42\uff0c\u5c06\u4f1a\u628a\u8bf7\u6c42\u653e\u5165\u961f\u5217\u4e2d\u6392\u961f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">23\u3001Redis\u4e8b\u52a1\u76f8\u5173\u547d\u4ee4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u4e8b\u52a1\u529f\u80fd\u662f\u901a\u8fc7MULTI\u3001EXEC\u3001DISCARD\u548cWATCH \u56db\u4e2a\u539f\u8bed\u5b9e\u73b0\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u4f1a\u5c06\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u7684\u6240\u6709\u547d\u4ee4\u5e8f\u5217\u5316\uff0c\u7136\u540e\u6309\u987a\u5e8f\u6267\u884c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\uff09redis \u4e0d\u652f\u6301\u56de\u6eda\uff0c\u201cRedis \u5728\u4e8b\u52a1\u5931\u8d25\u65f6\u4e0d\u8fdb\u884c\u56de\u6eda\uff0c\u800c\u662f\u7ee7\u7eed\u6267\u884c\u4f59\u4e0b\u7684\u547d\u4ee4\u201d\uff0c \u6240\u4ee5 Redis \u7684\u5185\u90e8\u53ef\u4ee5\u4fdd\u6301\u7b80\u5355\u4e14\u5feb\u901f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\uff09\u5982\u679c\u5728\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u7684\u547d\u4ee4\u51fa\u73b0\u9519\u8bef\uff0c\u90a3\u4e48\u6240\u6709\u7684\u547d\u4ee4\u90fd\u4e0d\u4f1a\u6267\u884c\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">.3\uff09\u5982\u679c\u5728\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u51fa\u73b0\u8fd0\u884c\u9519\u8bef\uff0c\u90a3\u4e48\u6b63\u786e\u7684\u547d\u4ee4\u4f1a\u88ab\u6267\u884c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WATCH \u547d\u4ee4\u662f\u4e00\u4e2a\u4e50\u89c2\u9501\uff0c\u53ef\u4ee5\u4e3a Redis \u4e8b\u52a1\u63d0\u4f9b check-and-set \uff08CAS\uff09\u884c\u4e3a\u3002\u53ef\u4ee5\u76d1\u63a7\u4e00\u4e2a\u6216\u591a\u4e2a\u952e\uff0c\u4e00\u65e6\u5176\u4e2d\u6709\u4e00\u4e2a\u952e\u88ab\u4fee\u6539\uff08\u6216\u5220\u9664\uff09\uff0c\u4e4b\u540e\u7684\u4e8b\u52a1\u5c31\u4e0d\u4f1a\u6267\u884c\uff0c\u76d1\u63a7\u4e00\u76f4\u6301\u7eed\u5230EXEC\u547d\u4ee4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MULTI\u547d\u4ee4\u7528\u4e8e\u5f00\u542f\u4e00\u4e2a\u4e8b\u52a1\uff0c\u5b83\u603b\u662f\u8fd4\u56deOK\u3002MULTI\u6267\u884c\u4e4b\u540e\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u7ee7\u7eed\u5411\u670d\u52a1\u5668\u53d1\u9001\u4efb\u610f\u591a\u6761\u547d\u4ee4\uff0c\u8fd9\u4e9b\u547d\u4ee4\u4e0d\u4f1a\u7acb\u5373\u88ab\u6267\u884c\uff0c\u800c\u662f\u88ab\u653e\u5230\u4e00\u4e2a\u961f\u5217\u4e2d\uff0c\u5f53EXEC\u547d\u4ee4\u88ab\u8c03\u7528\u65f6\uff0c\u6240\u6709\u961f\u5217\u4e2d\u7684\u547d\u4ee4\u624d\u4f1a\u88ab\u6267\u884c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">EXEC\uff1a\u6267\u884c\u6240\u6709\u4e8b\u52a1\u5757\u5185\u7684\u547d\u4ee4\u3002\u8fd4\u56de\u4e8b\u52a1\u5757\u5185\u6240\u6709\u547d\u4ee4\u7684\u8fd4\u56de\u503c\uff0c\u6309\u547d\u4ee4\u6267\u884c\u7684\u5148\u540e\u987a\u5e8f\u6392\u5217\u3002\u5f53\u64cd\u4f5c\u88ab\u6253\u65ad\u65f6\uff0c\u8fd4\u56de\u7a7a\u503c nil \u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u8c03\u7528DISCARD\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u6e05\u7a7a\u4e8b\u52a1\u961f\u5217\uff0c\u5e76\u653e\u5f03\u6267\u884c\u4e8b\u52a1\uff0c \u5e76\u4e14\u5ba2\u6237\u7aef\u4f1a\u4ece\u4e8b\u52a1\u72b6\u6001\u4e2d\u9000\u51fa\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">UNWATCH\u547d\u4ee4\u53ef\u4ee5\u53d6\u6d88watch\u5bf9\u6240\u6709key\u7684\u76d1\u63a7\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">24\u3001\u4e8b\u52a1\u7ba1\u7406\uff08ACID\uff09\u6982\u8ff0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u539f\u5b50\u6027\uff08Atomicity\uff09\uff1a\u539f\u5b50\u6027\u662f\u6307\u4e8b\u52a1\u662f\u4e00\u4e2a\u4e0d\u53ef\u5206\u5272\u7684\u5de5\u4f5c\u5355\u4f4d\uff0c\u4e8b\u52a1\u4e2d\u7684\u64cd\u4f5c\u8981\u4e48\u90fd\u53d1\u751f\uff0c\u8981\u4e48\u90fd\u4e0d\u53d1\u751f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u81f4\u6027\uff08Consistency\uff09\uff1a\u4e8b\u52a1\u524d\u540e\u6570\u636e\u7684\u5b8c\u6574\u6027\u5fc5\u987b\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9694\u79bb\u6027\uff08Isolation\uff09\uff1a\u591a\u4e2a\u4e8b\u52a1\u5e76\u53d1\u6267\u884c\u65f6\uff0c\u4e00\u4e2a\u4e8b\u52a1\u7684\u6267\u884c\u4e0d\u5e94\u5f71\u54cd\u5176\u4ed6\u4e8b\u52a1\u7684\u6267\u884c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6301\u4e45\u6027\uff08Durability\uff09\uff1a\u6301\u4e45\u6027\u662f\u6307\u4e00\u4e2a\u4e8b\u52a1\u4e00\u65e6\u88ab\u63d0\u4ea4\uff0c\u5b83\u5bf9\u6570\u636e\u5e93\u4e2d\u6570\u636e\u7684\u6539\u53d8\u5c31\u662f\u6c38\u4e45\u6027\u7684\uff0c\u63a5\u4e0b\u6765\u5373\u4f7f\u6570\u636e\u5e93\u53d1\u751f\u6545\u969c\u4e5f\u4e0d\u5e94\u8be5\u5bf9\u5176\u6709\u4efb\u4f55\u5f71\u54cd<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u7684\u4e8b\u52a1\u603b\u662f\u5177\u6709ACID\u4e2d\u7684\u4e00\u81f4\u6027\u548c\u9694\u79bb\u6027\uff0c\u5176\u4ed6\u7279\u6027\u662f\u4e0d\u652f\u6301\u7684\u3002\u5f53\u670d\u52a1\u5668\u8fd0\u884c\u5728AOF\u6301\u4e45\u5316\u6a21\u5f0f\u4e0b\uff0c\u5e76\u4e14appendfsync\u9009\u9879\u7684\u503c\u4e3aalways\u65f6\uff0c\u4e8b\u52a1\u4e5f\u5177\u6709\u8010\u4e45\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">25\u3001Redis\u4e8b\u52a1\u652f\u6301\u9694\u79bb\u6027\u5417\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis \u662f\u5355\u8fdb\u7a0b\u7a0b\u5e8f\uff0c\u5e76\u4e14\u5b83\u4fdd\u8bc1\u5728\u6267\u884c\u4e8b\u52a1\u65f6\uff0c\u4e0d\u4f1a\u5bf9\u4e8b\u52a1\u8fdb\u884c\u4e2d\u65ad\uff0c\u4e8b\u52a1\u53ef\u4ee5\u8fd0\u884c\u76f4\u5230\u6267\u884c\u5b8c\u6240\u6709\u4e8b\u52a1\u961f\u5217\u4e2d\u7684\u547d\u4ee4\u4e3a\u6b62\u3002\u56e0\u6b64\uff0cRedis \u7684\u4e8b\u52a1\u662f\u603b\u662f\u5e26\u6709\u9694\u79bb\u6027\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">26\u3001Redis\u4e8b\u52a1\u4fdd\u8bc1\u539f\u5b50\u6027\u5417\uff0c\u652f\u6301\u56de\u6eda\u5417\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u4e2d\uff0c\u5355\u6761\u547d\u4ee4\u662f\u539f\u5b50\u6027\u6267\u884c\u7684\uff0c\u4f46\u4e8b\u52a1\u4e0d\u4fdd\u8bc1\u539f\u5b50\u6027\uff0c\u4e14\u6ca1\u6709\u56de\u6eda\u3002\u4e8b\u52a1\u4e2d\u4efb\u610f\u547d\u4ee4\u6267\u884c\u5931\u8d25\uff0c\u5176\u4f59\u7684\u547d\u4ee4\u4ecd\u4f1a\u88ab\u6267\u884c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">27\u3001Redis\u4e8b\u52a1\u5176\u4ed6\u5b9e\u73b0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u4e8eLua\u811a\u672c\uff0cRedis\u53ef\u4ee5\u4fdd\u8bc1\u811a\u672c\u5185\u7684\u547d\u4ee4\u4e00\u6b21\u6027\u3001\u6309\u987a\u5e8f\u5730\u6267\u884c\uff0c\u5176\u540c\u65f6\u4e5f\u4e0d\u63d0\u4f9b\u4e8b\u52a1\u8fd0\u884c\u9519\u8bef\u7684\u56de\u6eda\uff0c\u6267\u884c\u8fc7\u7a0b\u4e2d\u5982\u679c\u90e8\u5206\u547d\u4ee4\u8fd0\u884c\u9519\u8bef\uff0c\u5269\u4e0b\u7684\u547d\u4ee4\u8fd8\u662f\u4f1a\u7ee7\u7eed\u8fd0\u884c\u5b8c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u4e8e\u4e2d\u95f4\u6807\u8bb0\u53d8\u91cf\uff0c\u901a\u8fc7\u53e6\u5916\u7684\u6807\u8bb0\u53d8\u91cf\u6765\u6807\u8bc6\u4e8b\u52a1\u662f\u5426\u6267\u884c\u5b8c\u6210\uff0c\u8bfb\u53d6\u6570\u636e\u65f6\u5148\u8bfb\u53d6\u8be5\u6807\u8bb0\u53d8\u91cf\u5224\u65ad\u662f\u5426\u4e8b\u52a1\u6267\u884c\u5b8c\u6210\u3002\u4f46\u8fd9\u6837\u4f1a\u9700\u8981\u989d\u5916\u5199\u4ee3\u7801\u5b9e\u73b0\uff0c\u6bd4\u8f83\u7e41\u7410\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u96c6\u7fa4\u65b9\u6848<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">28\u3001\u54e8\u5175\u6a21\u5f0f<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015661418.jpg\" alt=\"\" \/><figcaption>Redis \u96c6\u7fa4 sentinel \u54e8\u5175\u6a21\u5f0f<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u54e8\u5175\u7684\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">sentinel\uff0c\u4e2d\u6587\u540d\u662f\u54e8\u5175\u3002\u54e8\u5175\u662f redis \u96c6\u7fa4\u673a\u6784\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u4e3b\u8981\u6709\u4ee5\u4e0b\u529f\u80fd\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u96c6\u7fa4\u76d1\u63a7\uff1a\u8d1f\u8d23\u76d1\u63a7 redis master \u548c slave \u8fdb\u7a0b\u662f\u5426\u6b63\u5e38\u5de5\u4f5c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d88\u606f\u901a\u77e5\uff1a\u5982\u679c\u67d0\u4e2a redis \u5b9e\u4f8b\u6709\u6545\u969c\uff0c\u90a3\u4e48\u54e8\u5175\u8d1f\u8d23\u53d1\u9001\u6d88\u606f\u4f5c\u4e3a\u62a5\u8b66\u901a\u77e5\u7ed9\u7ba1\u7406\u5458\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6545\u969c\u8f6c\u79fb\uff1a\u5982\u679c master node \u6302\u6389\u4e86\uff0c\u4f1a\u81ea\u52a8\u8f6c\u79fb\u5230 slave node \u4e0a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u914d\u7f6e\u4e2d\u5fc3\uff1a\u5982\u679c\u6545\u969c\u8f6c\u79fb\u53d1\u751f\u4e86\uff0c\u901a\u77e5 client \u5ba2\u6237\u7aef\u65b0\u7684 master \u5730\u5740\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u54e8\u5175\u7528\u4e8e\u5b9e\u73b0 redis \u96c6\u7fa4\u7684\u9ad8\u53ef\u7528\uff0c\u672c\u8eab\u4e5f\u662f\u5206\u5e03\u5f0f\u7684\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u54e8\u5175\u96c6\u7fa4\u53bb\u8fd0\u884c\uff0c\u4e92\u76f8\u534f\u540c\u5de5\u4f5c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6545\u969c\u8f6c\u79fb\u65f6\uff0c\u5224\u65ad\u4e00\u4e2a master node \u662f\u5426\u5b95\u673a\u4e86\uff0c\u9700\u8981\u5927\u90e8\u5206\u7684\u54e8\u5175\u90fd\u540c\u610f\u624d\u884c\uff0c\u6d89\u53ca\u5230\u4e86\u5206\u5e03\u5f0f\u9009\u4e3e\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5373\u4f7f\u90e8\u5206\u54e8\u5175\u8282\u70b9\u6302\u6389\u4e86\uff0c\u54e8\u5175\u96c6\u7fa4\u8fd8\u662f\u80fd\u6b63\u5e38\u5de5\u4f5c\u7684\uff0c\u56e0\u4e3a\u5982\u679c\u4e00\u4e2a\u4f5c\u4e3a\u9ad8\u53ef\u7528\u673a\u5236\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u7684\u6545\u969c\u8f6c\u79fb\u7cfb\u7edf\u672c\u8eab\u662f\u5355\u70b9\u7684\uff0c\u90a3\u5c31\u5f88\u5751\u7239\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u54e8\u5175\u7684\u6838\u5fc3\u77e5\u8bc6<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u54e8\u5175\u81f3\u5c11\u9700\u8981 3 \u4e2a\u5b9e\u4f8b\uff0c\u6765\u4fdd\u8bc1\u81ea\u5df1\u7684\u5065\u58ee\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u54e8\u5175 + redis \u4e3b\u4ece\u7684\u90e8\u7f72\u67b6\u6784\uff0c\u662f\u4e0d\u4fdd\u8bc1\u6570\u636e\u96f6\u4e22\u5931\u7684\uff0c\u53ea\u80fd\u4fdd\u8bc1 redis \u96c6\u7fa4\u7684\u9ad8\u53ef\u7528\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u54e8\u5175 + redis \u4e3b\u4ece\u8fd9\u79cd\u590d\u6742\u7684\u90e8\u7f72\u67b6\u6784\uff0c\u5c3d\u91cf\u5728\u6d4b\u8bd5\u73af\u5883\u548c\u751f\u4ea7\u73af\u5883\uff0c\u90fd\u8fdb\u884c\u5145\u8db3\u7684\u6d4b\u8bd5\u548c\u6f14\u7ec3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">29\u3001\u5b98\u65b9Redis Cluster \u65b9\u6848(\u670d\u52a1\u7aef\u8def\u7531\u67e5\u8be2)<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015671187.jpg\" alt=\"\" \/><figcaption>Redis Cluster \u65b9\u6848<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">redis \u96c6\u7fa4\u6a21\u5f0f\u7684\u5de5\u4f5c\u539f\u7406\u80fd\u8bf4\u4e00\u4e0b\u4e48\uff1f\u5728\u96c6\u7fa4\u6a21\u5f0f\u4e0b\uff0credis \u7684 key \u662f\u5982\u4f55\u5bfb\u5740\u7684\uff1f\u5206\u5e03\u5f0f\u5bfb\u5740\u90fd\u6709\u54ea\u4e9b\u7b97\u6cd5\uff1f\u4e86\u89e3\u4e00\u81f4\u6027 hash \u7b97\u6cd5\u5417\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b80\u4ecb<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis Cluster\u662f\u4e00\u79cd\u670d\u52a1\u7aefSharding\u6280\u672f\uff0c3.0\u7248\u672c\u5f00\u59cb\u6b63\u5f0f\u63d0\u4f9b\u3002Redis Cluster\u5e76\u6ca1\u6709\u4f7f\u7528\u4e00\u81f4\u6027hash\uff0c\u800c\u662f\u91c7\u7528slot(\u69fd)\u7684\u6982\u5ff5\uff0c\u4e00\u5171\u5206\u621016384\u4e2a\u69fd\u3002\u5c06\u8bf7\u6c42\u53d1\u9001\u5230\u4efb\u610f\u8282\u70b9\uff0c\u63a5\u6536\u5230\u8bf7\u6c42\u7684\u8282\u70b9\u4f1a\u5c06\u67e5\u8be2\u8bf7\u6c42\u53d1\u9001\u5230\u6b63\u786e\u7684\u8282\u70b9\u4e0a\u6267\u884c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u65b9\u6848\u8bf4\u660e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u54c8\u5e0c\u7684\u65b9\u5f0f\uff0c\u5c06\u6570\u636e\u5206\u7247\uff0c\u6bcf\u4e2a\u8282\u70b9\u5747\u5206\u5b58\u50a8\u4e00\u5b9a\u54c8\u5e0c\u69fd(\u54c8\u5e0c\u503c)\u533a\u95f4\u7684\u6570\u636e\uff0c\u9ed8\u8ba4\u5206\u914d\u4e8616384 \u4e2a\u69fd\u4f4d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6bcf\u4efd\u6570\u636e\u5206\u7247\u4f1a\u5b58\u50a8\u5728\u591a\u4e2a\u4e92\u4e3a\u4e3b\u4ece\u7684\u591a\u8282\u70b9\u4e0a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6570\u636e\u5199\u5165\u5148\u5199\u4e3b\u8282\u70b9\uff0c\u518d\u540c\u6b65\u5230\u4ece\u8282\u70b9(\u652f\u6301\u914d\u7f6e\u4e3a\u963b\u585e\u540c\u6b65)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u4e00\u5206\u7247\u591a\u4e2a\u8282\u70b9\u95f4\u7684\u6570\u636e\u4e0d\u4fdd\u6301\u4e00\u81f4\u6027<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bfb\u53d6\u6570\u636e\u65f6\uff0c\u5f53\u5ba2\u6237\u7aef\u64cd\u4f5c\u7684key\u6ca1\u6709\u5206\u914d\u5728\u8be5\u8282\u70b9\u4e0a\u65f6\uff0credis\u4f1a\u8fd4\u56de\u8f6c\u5411\u6307\u4ee4\uff0c\u6307\u5411\u6b63\u786e\u7684\u8282\u70b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6269\u5bb9\u65f6\u65f6\u9700\u8981\u9700\u8981\u628a\u65e7\u8282\u70b9\u7684\u6570\u636e\u8fc1\u79fb\u4e00\u90e8\u5206\u5230\u65b0\u8282\u70b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 redis cluster \u67b6\u6784\u4e0b\uff0c\u6bcf\u4e2a redis \u8981\u653e\u5f00\u4e24\u4e2a\u7aef\u53e3\u53f7\uff0c\u6bd4\u5982\u4e00\u4e2a\u662f 6379\uff0c\u53e6\u5916\u4e00\u4e2a\u5c31\u662f \u52a01w \u7684\u7aef\u53e3\u53f7\uff0c\u6bd4\u5982 16379\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">16379 \u7aef\u53e3\u53f7\u662f\u7528\u6765\u8fdb\u884c\u8282\u70b9\u95f4\u901a\u4fe1\u7684\uff0c\u4e5f\u5c31\u662f cluster bus \u7684\u4e1c\u897f\uff0ccluster bus \u7684\u901a\u4fe1\uff0c\u7528\u6765\u8fdb\u884c\u6545\u969c\u68c0\u6d4b\u3001\u914d\u7f6e\u66f4\u65b0\u3001\u6545\u969c\u8f6c\u79fb\u6388\u6743\u3002cluster bus \u7528\u4e86\u53e6\u5916\u4e00\u79cd\u4e8c\u8fdb\u5236\u7684\u534f\u8bae\uff0cgossip \u534f\u8bae\uff0c\u7528\u4e8e\u8282\u70b9\u95f4\u8fdb\u884c\u9ad8\u6548\u7684\u6570\u636e\u4ea4\u6362\uff0c\u5360\u7528\u66f4\u5c11\u7684\u7f51\u7edc\u5e26\u5bbd\u548c\u5904\u7406\u65f6\u95f4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8282\u70b9\u95f4\u7684\u5185\u90e8\u901a\u4fe1\u673a\u5236<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff08\u57fa\u672c\u901a\u4fe1\u539f\u7406\uff09\u96c6\u7fa4\u5143\u6570\u636e\u7684\u7ef4\u62a4\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a\u96c6\u4e2d\u5f0f\u3001Gossip \u534f\u8bae\u3002redis cluster \u8282\u70b9\u95f4\u91c7\u7528 gossip \u534f\u8bae\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u5e03\u5f0f\u5bfb\u5740\u7b97\u6cd5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">hash \u7b97\u6cd5\uff08\u5927\u91cf\u7f13\u5b58\u91cd\u5efa\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u81f4\u6027 hash \u7b97\u6cd5\uff08\u81ea\u52a8\u7f13\u5b58\u8fc1\u79fb\uff09+ \u865a\u62df\u8282\u70b9\uff08\u81ea\u52a8\u8d1f\u8f7d\u5747\u8861\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">redis cluster \u7684 hash slot \u7b97\u6cd5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f18\u70b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u65e0\u4e2d\u5fc3\u67b6\u6784\uff0c\u652f\u6301\u52a8\u6001\u6269\u5bb9\uff0c\u5bf9\u4e1a\u52a1\u900f\u660e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5177\u5907Sentinel\u7684\u76d1\u63a7\u548c\u81ea\u52a8Failover(\u6545\u969c\u8f6c\u79fb)\u80fd\u529b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5ba2\u6237\u7aef\u4e0d\u9700\u8981\u8fde\u63a5\u96c6\u7fa4\u6240\u6709\u8282\u70b9\uff0c\u8fde\u63a5\u96c6\u7fa4\u4e2d\u4efb\u4f55\u4e00\u4e2a\u53ef\u7528\u8282\u70b9\u5373\u53ef<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u6027\u80fd\uff0c\u5ba2\u6237\u7aef\u76f4\u8fderedis\u670d\u52a1\uff0c\u514d\u53bb\u4e86proxy\u4ee3\u7406\u7684\u635f\u8017<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f3a\u70b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd0\u7ef4\u4e5f\u5f88\u590d\u6742\uff0c\u6570\u636e\u8fc1\u79fb\u9700\u8981\u4eba\u5de5\u5e72\u9884<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ea\u80fd\u4f7f\u75280\u53f7\u6570\u636e\u5e93<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u652f\u6301\u6279\u91cf\u64cd\u4f5c(pipeline\u7ba1\u9053\u64cd\u4f5c)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u5e03\u5f0f\u903b\u8f91\u548c\u5b58\u50a8\u6a21\u5757\u8026\u5408\u7b49<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">30\u3001\u57fa\u4e8e\u5ba2\u6237\u7aef\u5206\u914d<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/WX20200324100907.png\" alt=\"\" \/><figcaption>Redis master node<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b80\u4ecb<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis Sharding\u662fRedis Cluster\u51fa\u6765\u4e4b\u524d\uff0c\u4e1a\u754c\u666e\u904d\u4f7f\u7528\u7684\u591aRedis\u5b9e\u4f8b\u96c6\u7fa4\u65b9\u6cd5\u3002\u5176\u4e3b\u8981\u601d\u60f3\u662f\u91c7\u7528\u54c8\u5e0c\u7b97\u6cd5\u5c06Redis\u6570\u636e\u7684key\u8fdb\u884c\u6563\u5217\uff0c\u901a\u8fc7hash\u51fd\u6570\uff0c\u7279\u5b9a\u7684key\u4f1a\u6620\u5c04\u5230\u7279\u5b9a\u7684Redis\u8282\u70b9\u4e0a\u3002Java redis\u5ba2\u6237\u7aef\u9a71\u52a8jedis\uff0c\u652f\u6301Redis Sharding\u529f\u80fd\uff0c\u5373ShardedJedis\u4ee5\u53ca\u7ed3\u5408\u7f13\u5b58\u6c60\u7684ShardedJedisPool<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f18\u70b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f18\u52bf\u5728\u4e8e\u975e\u5e38\u7b80\u5355\uff0c\u670d\u52a1\u7aef\u7684Redis\u5b9e\u4f8b\u5f7c\u6b64\u72ec\u7acb\uff0c\u76f8\u4e92\u65e0\u5173\u8054\uff0c\u6bcf\u4e2aRedis\u5b9e\u4f8b\u50cf\u5355\u670d\u52a1\u5668\u4e00\u6837\u8fd0\u884c\uff0c\u975e\u5e38\u5bb9\u6613\u7ebf\u6027\u6269\u5c55\uff0c\u7cfb\u7edf\u7684\u7075\u6d3b\u6027\u5f88\u5f3a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f3a\u70b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7531\u4e8esharding\u5904\u7406\u653e\u5230\u5ba2\u6237\u7aef\uff0c\u89c4\u6a21\u8fdb\u4e00\u6b65\u6269\u5927\u65f6\u7ed9\u8fd0\u7ef4\u5e26\u6765\u6311\u6218\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5ba2\u6237\u7aefsharding\u4e0d\u652f\u6301\u52a8\u6001\u589e\u5220\u8282\u70b9\u3002\u670d\u52a1\u7aefRedis\u5b9e\u4f8b\u7fa4\u62d3\u6251\u7ed3\u6784\u6709\u53d8\u5316\u65f6\uff0c\u6bcf\u4e2a\u5ba2\u6237\u7aef\u90fd\u9700\u8981\u66f4\u65b0\u8c03\u6574\u3002\u8fde\u63a5\u4e0d\u80fd\u5171\u4eab\uff0c\u5f53\u5e94\u7528\u89c4\u6a21\u589e\u5927\u65f6\uff0c\u8d44\u6e90\u6d6a\u8d39\u5236\u7ea6\u4f18\u5316<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">31\u3001\u57fa\u4e8e\u4ee3\u7406\u670d\u52a1\u5668\u5206\u7247<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/WX20200324101049.png\" alt=\"\" \/><figcaption>Redis \u57fa\u4e8e\u4ee3\u7406\u670d\u52a1\u5668\u5206\u7247\u6280\u672f<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b80\u4ecb<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u5230\u4e00\u4e2a\u4ee3\u7406\u7ec4\u4ef6\uff0c\u4ee3\u7406\u89e3\u6790\u5ba2\u6237\u7aef\u7684\u6570\u636e\uff0c\u5e76\u5c06\u8bf7\u6c42\u8f6c\u53d1\u81f3\u6b63\u786e\u7684\u8282\u70b9\uff0c\u6700\u540e\u5c06\u7ed3\u679c\u56de\u590d\u7ed9\u5ba2\u6237\u7aef<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7279\u5f81<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u900f\u660e\u63a5\u5165\uff0c\u4e1a\u52a1\u7a0b\u5e8f\u4e0d\u7528\u5173\u5fc3\u540e\u7aefRedis\u5b9e\u4f8b\uff0c\u5207\u6362\u6210\u672c\u4f4e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Proxy \u7684\u903b\u8f91\u548c\u5b58\u50a8\u7684\u903b\u8f91\u662f\u9694\u79bb\u7684<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u7406\u5c42\u591a\u4e86\u4e00\u6b21\u8f6c\u53d1\uff0c\u6027\u80fd\u6709\u6240\u635f\u8017<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e1a\u754c\u5f00\u6e90\u65b9\u6848<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Twtter\u5f00\u6e90\u7684Twemproxy<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8c4c\u8c46\u835a\u5f00\u6e90\u7684Codis<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">32\u3001Redis \u4e3b\u4ece\u67b6\u6784<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5355\u673a\u7684 redis\uff0c\u80fd\u591f\u627f\u8f7d\u7684 QPS \u5927\u6982\u5c31\u5728\u4e0a\u4e07\u5230\u51e0\u4e07\u4e0d\u7b49\u3002\u5bf9\u4e8e\u7f13\u5b58\u6765\u8bf4\uff0c\u4e00\u822c\u90fd\u662f\u7528\u6765\u652f\u6491\u8bfb\u9ad8\u5e76\u53d1\u7684\u3002\u56e0\u6b64\u67b6\u6784\u505a\u6210\u4e3b\u4ece(master-slave)\u67b6\u6784\uff0c\u4e00\u4e3b\u591a\u4ece\uff0c\u4e3b\u8d1f\u8d23\u5199\uff0c\u5e76\u4e14\u5c06\u6570\u636e\u590d\u5236\u5230\u5176\u5b83\u7684 slave \u8282\u70b9\uff0c\u4ece\u8282\u70b9\u8d1f\u8d23\u8bfb\u3002\u6240\u6709\u7684\u8bfb\u8bf7\u6c42\u5168\u90e8\u8d70\u4ece\u8282\u70b9\u3002\u8fd9\u6837\u4e5f\u53ef\u4ee5\u5f88\u8f7b\u677e\u5b9e\u73b0\u6c34\u5e73\u6269\u5bb9\uff0c\u652f\u6491\u8bfb\u9ad8\u5e76\u53d1\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015881973.jpg\" alt=\"\" \/><figcaption>Redis \u4e3b\u4ece\u67b6\u6784<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">redis replication -&gt; \u4e3b\u4ece\u67b6\u6784 -&gt; \u8bfb\u5199\u5206\u79bb -&gt; \u6c34\u5e73\u6269\u5bb9\u652f\u6491\u8bfb\u9ad8\u5e76\u53d1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">redis replication \u7684\u6838\u5fc3\u673a\u5236<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">redis \u91c7\u7528\u5f02\u6b65\u65b9\u5f0f\u590d\u5236\u6570\u636e\u5230 slave \u8282\u70b9\uff0c\u4e0d\u8fc7 redis2.8 \u5f00\u59cb\uff0cslave node \u4f1a\u5468\u671f\u6027\u5730\u786e\u8ba4\u81ea\u5df1\u6bcf\u6b21\u590d\u5236\u7684\u6570\u636e\u91cf\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u4e2a master node \u662f\u53ef\u4ee5\u914d\u7f6e\u591a\u4e2a slave node \u7684\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">slave node \u4e5f\u53ef\u4ee5\u8fde\u63a5\u5176\u4ed6\u7684 slave node\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">slave node \u505a\u590d\u5236\u7684\u65f6\u5019\uff0c\u4e0d\u4f1a block master node \u7684\u6b63\u5e38\u5de5\u4f5c\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">slave node \u5728\u505a\u590d\u5236\u7684\u65f6\u5019\uff0c\u4e5f\u4e0d\u4f1a block \u5bf9\u81ea\u5df1\u7684\u67e5\u8be2\u64cd\u4f5c\uff0c\u5b83\u4f1a\u7528\u65e7\u7684\u6570\u636e\u96c6\u6765\u63d0\u4f9b\u670d\u52a1\uff1b\u4f46\u662f\u590d\u5236\u5b8c\u6210\u7684\u65f6\u5019\uff0c\u9700\u8981\u5220\u9664\u65e7\u6570\u636e\u96c6\uff0c\u52a0\u8f7d\u65b0\u6570\u636e\u96c6\uff0c\u8fd9\u4e2a\u65f6\u5019\u5c31\u4f1a\u6682\u505c\u5bf9\u5916\u670d\u52a1\u4e86\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">slave node \u4e3b\u8981\u7528\u6765\u8fdb\u884c\u6a2a\u5411\u6269\u5bb9\uff0c\u505a\u8bfb\u5199\u5206\u79bb\uff0c\u6269\u5bb9\u7684 slave node \u53ef\u4ee5\u63d0\u9ad8\u8bfb\u7684\u541e\u5410\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\uff0c\u5982\u679c\u91c7\u7528\u4e86\u4e3b\u4ece\u67b6\u6784\uff0c\u90a3\u4e48\u5efa\u8bae\u5fc5\u987b\u5f00\u542f master node \u7684\u6301\u4e45\u5316\uff0c\u4e0d\u5efa\u8bae\u7528 slave node \u4f5c\u4e3a master node \u7684\u6570\u636e\u70ed\u5907\uff0c\u56e0\u4e3a\u90a3\u6837\u7684\u8bdd\uff0c\u5982\u679c\u4f60\u5173\u6389 master \u7684\u6301\u4e45\u5316\uff0c\u53ef\u80fd\u5728 master \u5b95\u673a\u91cd\u542f\u7684\u65f6\u5019\u6570\u636e\u662f\u7a7a\u7684\uff0c\u7136\u540e\u53ef\u80fd\u4e00\u7ecf\u8fc7\u590d\u5236\uff0c slave node \u7684\u6570\u636e\u4e5f\u4e22\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53e6\u5916\uff0cmaster \u7684\u5404\u79cd\u5907\u4efd\u65b9\u6848\uff0c\u4e5f\u9700\u8981\u505a\u3002\u4e07\u4e00\u672c\u5730\u7684\u6240\u6709\u6587\u4ef6\u4e22\u5931\u4e86\uff0c\u4ece\u5907\u4efd\u4e2d\u6311\u9009\u4e00\u4efd rdb \u53bb\u6062\u590d master\uff0c\u8fd9\u6837\u624d\u80fd\u786e\u4fdd\u542f\u52a8\u7684\u65f6\u5019\uff0c\u662f\u6709\u6570\u636e\u7684\uff0c\u5373\u4f7f\u91c7\u7528\u4e86\u540e\u7eed\u8bb2\u89e3\u7684\u9ad8\u53ef\u7528\u673a\u5236\uff0cslave node \u53ef\u4ee5\u81ea\u52a8\u63a5\u7ba1 master node\uff0c\u4f46\u4e5f\u53ef\u80fd sentinel \u8fd8\u6ca1\u68c0\u6d4b\u5230 master failure\uff0cmaster node \u5c31\u81ea\u52a8\u91cd\u542f\u4e86\uff0c\u8fd8\u662f\u53ef\u80fd\u5bfc\u81f4\u4e0a\u9762\u6240\u6709\u7684 slave node \u6570\u636e\u88ab\u6e05\u7a7a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">redis \u4e3b\u4ece\u590d\u5236\u7684\u6838\u5fc3\u539f\u7406<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u542f\u52a8\u4e00\u4e2a slave node \u7684\u65f6\u5019\uff0c\u5b83\u4f1a\u53d1\u9001\u4e00\u4e2a PSYNC \u547d\u4ee4\u7ed9 master node\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u8fd9\u662f slave node \u521d\u6b21\u8fde\u63a5\u5230 master node\uff0c\u90a3\u4e48\u4f1a\u89e6\u53d1\u4e00\u6b21 full resynchronization \u5168\u91cf\u590d\u5236\u3002\u6b64\u65f6 master \u4f1a\u542f\u52a8\u4e00\u4e2a\u540e\u53f0\u7ebf\u7a0b\uff0c\u5f00\u59cb\u751f\u6210\u4e00\u4efd RDB \u5feb\u7167\u6587\u4ef6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u65f6\u8fd8\u4f1a\u5c06\u4ece\u5ba2\u6237\u7aef client \u65b0\u6536\u5230\u7684\u6240\u6709\u5199\u547d\u4ee4\u7f13\u5b58\u5728\u5185\u5b58\u4e2d\u3002RDB \u6587\u4ef6\u751f\u6210\u5b8c\u6bd5\u540e\uff0c master \u4f1a\u5c06\u8fd9\u4e2a RDB \u53d1\u9001\u7ed9 slave\uff0cslave \u4f1a\u5148\u5199\u5165\u672c\u5730\u78c1\u76d8\uff0c\u7136\u540e\u518d\u4ece\u672c\u5730\u78c1\u76d8\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u7740 master \u4f1a\u5c06\u5185\u5b58\u4e2d\u7f13\u5b58\u7684\u5199\u547d\u4ee4\u53d1\u9001\u5230 slave\uff0cslave \u4e5f\u4f1a\u540c\u6b65\u8fd9\u4e9b\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">slave node \u5982\u679c\u8ddf master node \u6709\u7f51\u7edc\u6545\u969c\uff0c\u65ad\u5f00\u4e86\u8fde\u63a5\uff0c\u4f1a\u81ea\u52a8\u91cd\u8fde\uff0c\u8fde\u63a5\u4e4b\u540e master node \u4ec5\u4f1a\u590d\u5236\u7ed9 slave \u90e8\u5206\u7f3a\u5c11\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015891353.jpg\" alt=\"\" \/><figcaption>redis \u4e3b\u4ece\u590d\u5236\u7684\u6838\u5fc3\u539f\u7406<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fc7\u7a0b\u539f\u7406<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u4ece\u5e93\u548c\u4e3b\u5e93\u5efa\u7acbMS\u5173\u7cfb\u540e\uff0c\u4f1a\u5411\u4e3b\u6570\u636e\u5e93\u53d1\u9001SYNC\u547d\u4ee4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u5e93\u63a5\u6536\u5230SYNC\u547d\u4ee4\u540e\u4f1a\u5f00\u59cb\u5728\u540e\u53f0\u4fdd\u5b58\u5feb\u7167(RDB\u6301\u4e45\u5316\u8fc7\u7a0b)\uff0c\u5e76\u5c06\u671f\u95f4\u63a5\u6536\u5230\u7684\u5199\u547d\u4ee4\u7f13\u5b58\u8d77\u6765<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u5feb\u7167\u5b8c\u6210\u540e\uff0c\u4e3bRedis\u4f1a\u5c06\u5feb\u7167\u6587\u4ef6\u548c\u6240\u6709\u7f13\u5b58\u7684\u5199\u547d\u4ee4\u53d1\u9001\u7ed9\u4eceRedis<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eceRedis\u63a5\u6536\u5230\u540e\uff0c\u4f1a\u8f7d\u5165\u5feb\u7167\u6587\u4ef6\u5e76\u4e14\u6267\u884c\u6536\u5230\u7684\u7f13\u5b58\u7684\u547d\u4ee4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e4b\u540e\uff0c\u4e3bRedis\u6bcf\u5f53\u63a5\u6536\u5230\u5199\u547d\u4ee4\u65f6\u5c31\u4f1a\u5c06\u547d\u4ee4\u53d1\u9001\u4eceRedis\uff0c\u4ece\u800c\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f3a\u70b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u6709\u7684slave\u8282\u70b9\u6570\u636e\u7684\u590d\u5236\u548c\u540c\u6b65\u90fd\u7531master\u8282\u70b9\u6765\u5904\u7406\uff0c\u4f1a\u7167\u6210master\u8282\u70b9\u538b\u529b\u592a\u5927\uff0c\u4f7f\u7528\u4e3b\u4ece\u4ece\u7ed3\u6784\u6765\u89e3\u51b3<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">33\u3001Redis\u96c6\u7fa4\u7684\u4e3b\u4ece\u590d\u5236\u6a21\u578b\u662f\u600e\u6837\u7684\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4e86\u4f7f\u5728\u90e8\u5206\u8282\u70b9\u5931\u8d25\u6216\u8005\u5927\u90e8\u5206\u8282\u70b9\u65e0\u6cd5\u901a\u4fe1\u7684\u60c5\u51b5\u4e0b\u96c6\u7fa4\u4ecd\u7136\u53ef\u7528\uff0c\u6240\u4ee5\u96c6\u7fa4\u4f7f\u7528\u4e86\u4e3b\u4ece\u590d\u5236\u6a21\u578b\uff0c\u6bcf\u4e2a\u8282\u70b9\u90fd\u4f1a\u6709N-1\u4e2a\u590d\u5236\u54c1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">34\u3001\u751f\u4ea7\u73af\u5883\u4e2d\u7684 redis \u662f\u600e\u4e48\u90e8\u7f72\u7684\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">redis cluster\uff0c10 \u53f0\u673a\u5668\uff0c5 \u53f0\u673a\u5668\u90e8\u7f72\u4e86 redis \u4e3b\u5b9e\u4f8b\uff0c\u53e6\u5916 5 \u53f0\u673a\u5668\u90e8\u7f72\u4e86 redis \u7684\u4ece\u5b9e\u4f8b\uff0c\u6bcf\u4e2a\u4e3b\u5b9e\u4f8b\u6302\u4e86\u4e00\u4e2a\u4ece\u5b9e\u4f8b\uff0c5 \u4e2a\u8282\u70b9\u5bf9\u5916\u63d0\u4f9b\u8bfb\u5199\u670d\u52a1\uff0c\u6bcf\u4e2a\u8282\u70b9\u7684\u8bfb\u5199\u9ad8\u5cf0qps\u53ef\u80fd\u53ef\u4ee5\u8fbe\u5230\u6bcf\u79d2 5 \u4e07\uff0c5 \u53f0\u673a\u5668\u6700\u591a\u662f 25 \u4e07\u8bfb\u5199\u8bf7\u6c42\/s\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u673a\u5668\u662f\u4ec0\u4e48\u914d\u7f6e\uff1f32G \u5185\u5b58+ 8 \u6838 CPU + 1T \u78c1\u76d8\uff0c\u4f46\u662f\u5206\u914d\u7ed9 redis \u8fdb\u7a0b\u7684\u662f10g\u5185\u5b58\uff0c\u4e00\u822c\u7ebf\u4e0a\u751f\u4ea7\u73af\u5883\uff0credis \u7684\u5185\u5b58\u5c3d\u91cf\u4e0d\u8981\u8d85\u8fc7 10g\uff0c\u8d85\u8fc7 10g \u53ef\u80fd\u4f1a\u6709\u95ee\u9898\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5 \u53f0\u673a\u5668\u5bf9\u5916\u63d0\u4f9b\u8bfb\u5199\uff0c\u4e00\u5171\u6709 50g \u5185\u5b58\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u4e3a\u6bcf\u4e2a\u4e3b\u5b9e\u4f8b\u90fd\u6302\u4e86\u4e00\u4e2a\u4ece\u5b9e\u4f8b\uff0c\u6240\u4ee5\u662f\u9ad8\u53ef\u7528\u7684\uff0c\u4efb\u4f55\u4e00\u4e2a\u4e3b\u5b9e\u4f8b\u5b95\u673a\uff0c\u90fd\u4f1a\u81ea\u52a8\u6545\u969c\u8fc1\u79fb\uff0credis \u4ece\u5b9e\u4f8b\u4f1a\u81ea\u52a8\u53d8\u6210\u4e3b\u5b9e\u4f8b\u7ee7\u7eed\u63d0\u4f9b\u8bfb\u5199\u670d\u52a1\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f60\u5f80\u5185\u5b58\u91cc\u5199\u7684\u662f\u4ec0\u4e48\u6570\u636e\uff1f\u6bcf\u6761\u6570\u636e\u7684\u5927\u5c0f\u662f\u591a\u5c11\uff1f\u5546\u54c1\u6570\u636e\uff0c\u6bcf\u6761\u6570\u636e\u662f 10kb\u3002100 \u6761\u6570\u636e\u662f 1mb\uff0c10 \u4e07\u6761\u6570\u636e\u662f 1g\u3002\u5e38\u9a7b\u5185\u5b58\u7684\u662f 200 \u4e07\u6761\u5546\u54c1\u6570\u636e\uff0c\u5360\u7528\u5185\u5b58\u662f 20g\uff0c\u4ec5\u4ec5\u4e0d\u5230\u603b\u5185\u5b58\u7684 50%\u3002\u76ee\u524d\u9ad8\u5cf0\u671f\u6bcf\u79d2\u5c31\u662f 3500 \u5de6\u53f3\u7684\u8bf7\u6c42\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u5b9e\u5927\u578b\u7684\u516c\u53f8\uff0c\u4f1a\u6709\u57fa\u7840\u67b6\u6784\u7684 team \u8d1f\u8d23\u7f13\u5b58\u96c6\u7fa4\u7684\u8fd0\u7ef4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">35\u3001\u8bf4\u8bf4Redis\u54c8\u5e0c\u69fd\u7684\u6982\u5ff5\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u96c6\u7fa4\u6ca1\u6709\u4f7f\u7528\u4e00\u81f4\u6027hash,\u800c\u662f\u5f15\u5165\u4e86\u54c8\u5e0c\u69fd\u7684\u6982\u5ff5\uff0cRedis\u96c6\u7fa4\u670916384\u4e2a\u54c8\u5e0c\u69fd\uff0c\u6bcf\u4e2akey\u901a\u8fc7CRC16\u6821\u9a8c\u540e\u5bf916384\u53d6\u6a21\u6765\u51b3\u5b9a\u653e\u7f6e\u54ea\u4e2a\u69fd\uff0c\u96c6\u7fa4\u7684\u6bcf\u4e2a\u8282\u70b9\u8d1f\u8d23\u4e00\u90e8\u5206hash\u69fd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">36\u3001Redis\u96c6\u7fa4\u4f1a\u6709\u5199\u64cd\u4f5c\u4e22\u5931\u5417\uff1f\u4e3a\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u6570\u636e\u7684\u5f3a\u4e00\u81f4\u6027\uff0c\u8fd9\u610f\u5473\u8fd9\u5728\u5b9e\u9645\u4e2d\u96c6\u7fa4\u5728\u7279\u5b9a\u7684\u6761\u4ef6\u4e0b\u53ef\u80fd\u4f1a\u4e22\u5931\u5199\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">37\u3001Redis\u96c6\u7fa4\u4e4b\u95f4\u662f\u5982\u4f55\u590d\u5236\u7684\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f02\u6b65\u590d\u5236<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">38\u3001Redis\u96c6\u7fa4\u6700\u5927\u8282\u70b9\u4e2a\u6570\u662f\u591a\u5c11\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">16384\u4e2a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">39\u3001Redis\u96c6\u7fa4\u5982\u4f55\u9009\u62e9\u6570\u636e\u5e93\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u96c6\u7fa4\u76ee\u524d\u65e0\u6cd5\u505a\u6570\u636e\u5e93\u9009\u62e9\uff0c\u9ed8\u8ba4\u57280\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5206\u533a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">40\u3001Redis\u662f\u5355\u7ebf\u7a0b\u7684\uff0c\u5982\u4f55\u63d0\u9ad8\u591a\u6838CPU\u7684\u5229\u7528\u7387\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u5728\u540c\u4e00\u4e2a\u670d\u52a1\u5668\u90e8\u7f72\u591a\u4e2aRedis\u7684\u5b9e\u4f8b\uff0c\u5e76\u628a\u4ed6\u4eec\u5f53\u4f5c\u4e0d\u540c\u7684\u670d\u52a1\u5668\u6765\u4f7f\u7528\uff0c\u5728\u67d0\u4e9b\u65f6\u5019\uff0c\u65e0\u8bba\u5982\u4f55\u4e00\u4e2a\u670d\u52a1\u5668\u662f\u4e0d\u591f\u7684\uff0c \u6240\u4ee5\uff0c\u5982\u679c\u4f60\u60f3\u4f7f\u7528\u591a\u4e2aCPU\uff0c\u4f60\u53ef\u4ee5\u8003\u8651\u4e00\u4e0b\u5206\u7247\uff08shard\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">41\u3001\u4e3a\u4ec0\u4e48\u8981\u505aRedis\u5206\u533a\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u533a\u53ef\u4ee5\u8ba9Redis\u7ba1\u7406\u66f4\u5927\u7684\u5185\u5b58\uff0cRedis\u5c06\u53ef\u4ee5\u4f7f\u7528\u6240\u6709\u673a\u5668\u7684\u5185\u5b58\u3002\u5982\u679c\u6ca1\u6709\u5206\u533a\uff0c\u4f60\u6700\u591a\u53ea\u80fd\u4f7f\u7528\u4e00\u53f0\u673a\u5668\u7684\u5185\u5b58\u3002\u5206\u533a\u4f7fRedis\u7684\u8ba1\u7b97\u80fd\u529b\u901a\u8fc7\u7b80\u5355\u5730\u589e\u52a0\u8ba1\u7b97\u673a\u5f97\u5230\u6210\u500d\u63d0\u5347\uff0cRedis\u7684\u7f51\u7edc\u5e26\u5bbd\u4e5f\u4f1a\u968f\u7740\u8ba1\u7b97\u673a\u548c\u7f51\u5361\u7684\u589e\u52a0\u800c\u6210\u500d\u589e\u957f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">42\u3001\u4f60\u77e5\u9053\u6709\u54ea\u4e9bRedis\u5206\u533a\u5b9e\u73b0\u65b9\u6848\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5ba2\u6237\u7aef\u5206\u533a\u5c31\u662f\u5728\u5ba2\u6237\u7aef\u5c31\u5df2\u7ecf\u51b3\u5b9a\u6570\u636e\u4f1a\u88ab\u5b58\u50a8\u5230\u54ea\u4e2aredis\u8282\u70b9\u6216\u8005\u4ece\u54ea\u4e2aredis\u8282\u70b9\u8bfb\u53d6\u3002\u5927\u591a\u6570\u5ba2\u6237\u7aef\u5df2\u7ecf\u5b9e\u73b0\u4e86\u5ba2\u6237\u7aef\u5206\u533a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u7406\u5206\u533a \u610f\u5473\u7740\u5ba2\u6237\u7aef\u5c06\u8bf7\u6c42\u53d1\u9001\u7ed9\u4ee3\u7406\uff0c\u7136\u540e\u4ee3\u7406\u51b3\u5b9a\u53bb\u54ea\u4e2a\u8282\u70b9\u5199\u6570\u636e\u6216\u8005\u8bfb\u6570\u636e\u3002\u4ee3\u7406\u6839\u636e\u5206\u533a\u89c4\u5219\u51b3\u5b9a\u8bf7\u6c42\u54ea\u4e9bRedis\u5b9e\u4f8b\uff0c\u7136\u540e\u6839\u636eRedis\u7684\u54cd\u5e94\u7ed3\u679c\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002redis\u548cmemcached\u7684\u4e00\u79cd\u4ee3\u7406\u5b9e\u73b0\u5c31\u662fTwemproxy<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u8be2\u8def\u7531(Query routing) \u7684\u610f\u601d\u662f\u5ba2\u6237\u7aef\u968f\u673a\u5730\u8bf7\u6c42\u4efb\u610f\u4e00\u4e2aredis\u5b9e\u4f8b\uff0c\u7136\u540e\u7531Redis\u5c06\u8bf7\u6c42\u8f6c\u53d1\u7ed9\u6b63\u786e\u7684Redis\u8282\u70b9\u3002Redis Cluster\u5b9e\u73b0\u4e86\u4e00\u79cd\u6df7\u5408\u5f62\u5f0f\u7684\u67e5\u8be2\u8def\u7531\uff0c\u4f46\u5e76\u4e0d\u662f\u76f4\u63a5\u5c06\u8bf7\u6c42\u4ece\u4e00\u4e2aredis\u8282\u70b9\u8f6c\u53d1\u5230\u53e6\u4e00\u4e2aredis\u8282\u70b9\uff0c\u800c\u662f\u5728\u5ba2\u6237\u7aef\u7684\u5e2e\u52a9\u4e0b\u76f4\u63a5redirected\u5230\u6b63\u786e\u7684redis\u8282\u70b9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">43\u3001Redis\u5206\u533a\u6709\u4ec0\u4e48\u7f3a\u70b9\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d89\u53ca\u591a\u4e2akey\u7684\u64cd\u4f5c\u901a\u5e38\u4e0d\u4f1a\u88ab\u652f\u6301\u3002\u4f8b\u5982\u4f60\u4e0d\u80fd\u5bf9\u4e24\u4e2a\u96c6\u5408\u6c42\u4ea4\u96c6\uff0c\u56e0\u4e3a\u4ed6\u4eec\u53ef\u80fd\u88ab\u5b58\u50a8\u5230\u4e0d\u540c\u7684Redis\u5b9e\u4f8b\uff08\u5b9e\u9645\u4e0a\u8fd9\u79cd\u60c5\u51b5\u4e5f\u6709\u529e\u6cd5\uff0c\u4f46\u662f\u4e0d\u80fd\u76f4\u63a5\u4f7f\u7528\u4ea4\u96c6\u6307\u4ee4\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u65f6\u64cd\u4f5c\u591a\u4e2akey,\u5219\u4e0d\u80fd\u4f7f\u7528Redis\u4e8b\u52a1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u533a\u4f7f\u7528\u7684\u7c92\u5ea6\u662fkey\uff0c\u4e0d\u80fd\u4f7f\u7528\u4e00\u4e2a\u975e\u5e38\u957f\u7684\u6392\u5e8fkey\u5b58\u50a8\u4e00\u4e2a\u6570\u636e\u96c6\uff08The partitioning granularity is the key, so it is not possible to shard a dataset with a single huge key like a very big sorted set\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u4f7f\u7528\u5206\u533a\u7684\u65f6\u5019\uff0c\u6570\u636e\u5904\u7406\u4f1a\u975e\u5e38\u590d\u6742\uff0c\u4f8b\u5982\u4e3a\u4e86\u5907\u4efd\u4f60\u5fc5\u987b\u4ece\u4e0d\u540c\u7684Redis\u5b9e\u4f8b\u548c\u4e3b\u673a\u540c\u65f6\u6536\u96c6RDB \/ AOF\u6587\u4ef6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u533a\u65f6\u52a8\u6001\u6269\u5bb9\u6216\u7f29\u5bb9\u53ef\u80fd\u975e\u5e38\u590d\u6742\u3002Redis\u96c6\u7fa4\u5728\u8fd0\u884c\u65f6\u589e\u52a0\u6216\u8005\u5220\u9664Redis\u8282\u70b9\uff0c\u80fd\u505a\u5230\u6700\u5927\u7a0b\u5ea6\u5bf9\u7528\u6237\u900f\u660e\u5730\u6570\u636e\u518d\u5e73\u8861\uff0c\u4f46\u5176\u4ed6\u4e00\u4e9b\u5ba2\u6237\u7aef\u5206\u533a\u6216\u8005\u4ee3\u7406\u5206\u533a\u65b9\u6cd5\u5219\u4e0d\u652f\u6301\u8fd9\u79cd\u7279\u6027\u3002\u7136\u800c\uff0c\u6709\u4e00\u79cd\u9884\u5206\u7247\u7684\u6280\u672f\u4e5f\u53ef\u4ee5\u8f83\u597d\u7684\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5206\u5e03\u5f0f\u95ee\u9898<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">44\u3001Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u4e3a\u5355\u8fdb\u7a0b\u5355\u7ebf\u7a0b\u6a21\u5f0f\uff0c\u91c7\u7528\u961f\u5217\u6a21\u5f0f\u5c06\u5e76\u53d1\u8bbf\u95ee\u53d8\u6210\u4e32\u884c\u8bbf\u95ee\uff0c\u4e14\u591a\u5ba2\u6237\u7aef\u5bf9Redis\u7684\u8fde\u63a5\u5e76\u4e0d\u5b58\u5728\u7ade\u4e89\u5173\u7cfbRedis\u4e2d\u53ef\u4ee5\u4f7f\u7528SETNX\u547d\u4ee4\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u4e14\u4ec5\u5f53 key \u4e0d\u5b58\u5728\uff0c\u5c06 key \u7684\u503c\u8bbe\u4e3a value\u3002\u82e5\u7ed9\u5b9a\u7684 key \u5df2\u7ecf\u5b58\u5728\uff0c\u5219 SETNX \u4e0d\u505a\u4efb\u4f55\u52a8\u4f5c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SETNX \u662f\u300eSET if Not eXists\u300f(\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5219 SET)\u7684\u7b80\u5199\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd4\u56de\u503c\uff1a\u8bbe\u7f6e\u6210\u529f\uff0c\u8fd4\u56de 1 \u3002\u8bbe\u7f6e\u5931\u8d25\uff0c\u8fd4\u56de 0 \u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015903158.jpg\" alt=\"\" \/><figcaption>Redis \u5206\u5e03\u5f0f\u95ee\u9898<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528SETNX\u5b8c\u6210\u540c\u6b65\u9501\u7684\u6d41\u7a0b\u53ca\u4e8b\u9879\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528SETNX\u547d\u4ee4\u83b7\u53d6\u9501\uff0c\u82e5\u8fd4\u56de0\uff08key\u5df2\u5b58\u5728\uff0c\u9501\u5df2\u5b58\u5728\uff09\u5219\u83b7\u53d6\u5931\u8d25\uff0c\u53cd\u4e4b\u83b7\u53d6\u6210\u529f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4e86\u9632\u6b62\u83b7\u53d6\u9501\u540e\u7a0b\u5e8f\u51fa\u73b0\u5f02\u5e38\uff0c\u5bfc\u81f4\u5176\u4ed6\u7ebf\u7a0b\/\u8fdb\u7a0b\u8c03\u7528SETNX\u547d\u4ee4\u603b\u662f\u8fd4\u56de0\u800c\u8fdb\u5165\u6b7b\u9501\u72b6\u6001\uff0c\u9700\u8981\u4e3a\u8be5key\u8bbe\u7f6e\u4e00\u4e2a\u201c\u5408\u7406\u201d\u7684\u8fc7\u671f\u65f6\u95f4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u91ca\u653e\u9501\uff0c\u4f7f\u7528DEL\u547d\u4ee4\u5c06\u9501\u6570\u636e\u5220\u9664\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">45\u3001\u5982\u4f55\u89e3\u51b3 Redis \u7684\u5e76\u53d1\u7ade\u4e89 Key \u95ee\u9898<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u8c13 Redis \u7684\u5e76\u53d1\u7ade\u4e89 Key \u7684\u95ee\u9898\u4e5f\u5c31\u662f\u591a\u4e2a\u7cfb\u7edf\u540c\u65f6\u5bf9\u4e00\u4e2a key \u8fdb\u884c\u64cd\u4f5c\uff0c\u4f46\u662f\u6700\u540e\u6267\u884c\u7684\u987a\u5e8f\u548c\u6211\u4eec\u671f\u671b\u7684\u987a\u5e8f\u4e0d\u540c\uff0c\u8fd9\u6837\u4e5f\u5c31\u5bfc\u81f4\u4e86\u7ed3\u679c\u7684\u4e0d\u540c\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a8\u8350\u4e00\u79cd\u65b9\u6848\uff1a\u5206\u5e03\u5f0f\u9501\uff08zookeeper \u548c redis \u90fd\u53ef\u4ee5\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff09\u3002\uff08\u5982\u679c\u4e0d\u5b58\u5728 Redis \u7684\u5e76\u53d1\u7ade\u4e89 Key \u95ee\u9898\uff0c\u4e0d\u8981\u4f7f\u7528\u5206\u5e03\u5f0f\u9501\uff0c\u8fd9\u6837\u4f1a\u5f71\u54cd\u6027\u80fd\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u4e8ezookeeper\u4e34\u65f6\u6709\u5e8f\u8282\u70b9\u53ef\u4ee5\u5b9e\u73b0\u7684\u5206\u5e03\u5f0f\u9501\u3002\u5927\u81f4\u601d\u60f3\u4e3a\uff1a\u6bcf\u4e2a\u5ba2\u6237\u7aef\u5bf9\u67d0\u4e2a\u65b9\u6cd5\u52a0\u9501\u65f6\uff0c\u5728zookeeper\u4e0a\u7684\u4e0e\u8be5\u65b9\u6cd5\u5bf9\u5e94\u7684\u6307\u5b9a\u8282\u70b9\u7684\u76ee\u5f55\u4e0b\uff0c\u751f\u6210\u4e00\u4e2a\u552f\u4e00\u7684\u77ac\u65f6\u6709\u5e8f\u8282\u70b9\u3002\u5224\u65ad\u662f\u5426\u83b7\u53d6\u9501\u7684\u65b9\u5f0f\u5f88\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5224\u65ad\u6709\u5e8f\u8282\u70b9\u4e2d\u5e8f\u53f7\u6700\u5c0f\u7684\u4e00\u4e2a\u3002\u5f53\u91ca\u653e\u9501\u7684\u65f6\u5019\uff0c\u53ea\u9700\u5c06\u8fd9\u4e2a\u77ac\u65f6\u8282\u70b9\u5220\u9664\u5373\u53ef\u3002\u540c\u65f6\uff0c\u5176\u53ef\u4ee5\u907f\u514d\u670d\u52a1\u5b95\u673a\u5bfc\u81f4\u7684\u9501\u65e0\u6cd5\u91ca\u653e\uff0c\u800c\u4ea7\u751f\u7684\u6b7b\u9501\u95ee\u9898\u3002\u5b8c\u6210\u4e1a\u52a1\u6d41\u7a0b\u540e\uff0c\u5220\u9664\u5bf9\u5e94\u7684\u5b50\u8282\u70b9\u91ca\u653e\u9501\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5b9e\u8df5\u4e2d\uff0c\u5f53\u7136\u662f\u4ece\u4ee5\u53ef\u9760\u6027\u4e3a\u4e3b\u3002\u6240\u4ee5\u9996\u63a8Zookeeper\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">46\u3001\u5206\u5e03\u5f0fRedis\u662f\u524d\u671f\u505a\u8fd8\u662f\u540e\u671f\u89c4\u6a21\u4e0a\u6765\u4e86\u518d\u505a\u597d\uff1f\u4e3a\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u65e2\u7136Redis\u662f\u5982\u6b64\u7684\u8f7b\u91cf\uff08\u5355\u5b9e\u4f8b\u53ea\u4f7f\u75281M\u5185\u5b58\uff09\uff0c\u4e3a\u9632\u6b62\u4ee5\u540e\u7684\u6269\u5bb9\uff0c\u6700\u597d\u7684\u529e\u6cd5\u5c31\u662f\u4e00\u5f00\u59cb\u5c31\u542f\u52a8\u8f83\u591a\u5b9e\u4f8b\u3002\u5373\u4fbf\u4f60\u53ea\u6709\u4e00\u53f0\u670d\u52a1\u5668\uff0c\u4f60\u4e5f\u53ef\u4ee5\u4e00\u5f00\u59cb\u5c31\u8ba9Redis\u4ee5\u5206\u5e03\u5f0f\u7684\u65b9\u5f0f\u8fd0\u884c\uff0c\u4f7f\u7528\u5206\u533a\uff0c\u5728\u540c\u4e00\u53f0\u670d\u52a1\u5668\u4e0a\u542f\u52a8\u591a\u4e2a\u5b9e\u4f8b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u5f00\u59cb\u5c31\u591a\u8bbe\u7f6e\u51e0\u4e2aRedis\u5b9e\u4f8b\uff0c\u4f8b\u598232\u6216\u800564\u4e2a\u5b9e\u4f8b\uff0c\u5bf9\u5927\u591a\u6570\u7528\u6237\u6765\u8bf4\u8fd9\u64cd\u4f5c\u8d77\u6765\u53ef\u80fd\u6bd4\u8f83\u9ebb\u70e6\uff0c\u4f46\u662f\u4ece\u957f\u4e45\u6765\u770b\u505a\u8fd9\u70b9\u727a\u7272\u662f\u503c\u5f97\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6837\u7684\u8bdd\uff0c\u5f53\u4f60\u7684\u6570\u636e\u4e0d\u65ad\u589e\u957f\uff0c\u9700\u8981\u66f4\u591a\u7684Redis\u670d\u52a1\u5668\u65f6\uff0c\u4f60\u9700\u8981\u505a\u7684\u5c31\u662f\u4ec5\u4ec5\u5c06Redis\u5b9e\u4f8b\u4ece\u4e00\u53f0\u670d\u52a1\u8fc1\u79fb\u5230\u53e6\u5916\u4e00\u53f0\u670d\u52a1\u5668\u800c\u5df2\uff08\u800c\u4e0d\u7528\u8003\u8651\u91cd\u65b0\u5206\u533a\u7684\u95ee\u9898\uff09\u3002\u4e00\u65e6\u4f60\u6dfb\u52a0\u4e86\u53e6\u4e00\u53f0\u670d\u52a1\u5668\uff0c\u4f60\u9700\u8981\u5c06\u4f60\u4e00\u534a\u7684Redis\u5b9e\u4f8b\u4ece\u7b2c\u4e00\u53f0\u673a\u5668\u8fc1\u79fb\u5230\u7b2c\u4e8c\u53f0\u673a\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">47\u3001\u4ec0\u4e48\u662f RedLock<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis \u5b98\u65b9\u7ad9\u63d0\u51fa\u4e86\u4e00\u79cd\u6743\u5a01\u7684\u57fa\u4e8e Redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u65b9\u5f0f\u540d\u53eb Redlock\uff0c\u6b64\u79cd\u65b9\u5f0f\u6bd4\u539f\u5148\u7684\u5355\u8282\u70b9\u7684\u65b9\u6cd5\u66f4\u5b89\u5168\u3002\u5b83\u53ef\u4ee5\u4fdd\u8bc1\u4ee5\u4e0b\u7279\u6027\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b89\u5168\u7279\u6027\uff1a\u4e92\u65a5\u8bbf\u95ee\uff0c\u5373\u6c38\u8fdc\u53ea\u6709\u4e00\u4e2a client \u80fd\u62ff\u5230\u9501<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u907f\u514d\u6b7b\u9501\uff1a\u6700\u7ec8 client \u90fd\u53ef\u80fd\u62ff\u5230\u9501\uff0c\u4e0d\u4f1a\u51fa\u73b0\u6b7b\u9501\u7684\u60c5\u51b5\uff0c\u5373\u4f7f\u539f\u672c\u9501\u4f4f\u67d0\u8d44\u6e90\u7684 client crash \u4e86\u6216\u8005\u51fa\u73b0\u4e86\u7f51\u7edc\u5206\u533a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bb9\u9519\u6027\uff1a\u53ea\u8981\u5927\u90e8\u5206 Redis \u8282\u70b9\u5b58\u6d3b\u5c31\u53ef\u4ee5\u6b63\u5e38\u63d0\u4f9b\u670d\u52a1<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7f13\u5b58\u5f02\u5e38<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">48\u3001\u7f13\u5b58\u96ea\u5d29<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f13\u5b58\u96ea\u5d29\u662f\u6307\u7f13\u5b58\u540c\u4e00\u65f6\u95f4\u5927\u9762\u79ef\u7684\u5931\u6548\uff0c\u6240\u4ee5\uff0c\u540e\u9762\u7684\u8bf7\u6c42\u90fd\u4f1a\u843d\u5230\u6570\u636e\u5e93\u4e0a\uff0c\u9020\u6210\u6570\u636e\u5e93\u77ed\u65f6\u95f4\u5185\u627f\u53d7\u5927\u91cf\u8bf7\u6c42\u800c\u5d29\u6389\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f13\u5b58\u6570\u636e\u7684\u8fc7\u671f\u65f6\u95f4\u8bbe\u7f6e\u968f\u673a\uff0c\u9632\u6b62\u540c\u4e00\u65f6\u95f4\u5927\u91cf\u6570\u636e\u8fc7\u671f\u73b0\u8c61\u53d1\u751f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u5e76\u53d1\u91cf\u4e0d\u662f\u7279\u522b\u591a\u7684\u65f6\u5019\uff0c\u4f7f\u7528\u6700\u591a\u7684\u89e3\u51b3\u65b9\u6848\u662f\u52a0\u9501\u6392\u961f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed9\u6bcf\u4e00\u4e2a\u7f13\u5b58\u6570\u636e\u589e\u52a0\u76f8\u5e94\u7684\u7f13\u5b58\u6807\u8bb0\uff0c\u8bb0\u5f55\u7f13\u5b58\u7684\u662f\u5426\u5931\u6548\uff0c\u5982\u679c\u7f13\u5b58\u6807\u8bb0\u5931\u6548\uff0c\u5219\u66f4\u65b0\u6570\u636e\u7f13\u5b58\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">49\u3001\u7f13\u5b58\u7a7f\u900f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f13\u5b58\u7a7f\u900f\u662f\u6307\u7f13\u5b58\u548c\u6570\u636e\u5e93\u4e2d\u90fd\u6ca1\u6709\u7684\u6570\u636e\uff0c\u5bfc\u81f4\u6240\u6709\u7684\u8bf7\u6c42\u90fd\u843d\u5230\u6570\u636e\u5e93\u4e0a\uff0c\u9020\u6210\u6570\u636e\u5e93\u77ed\u65f6\u95f4\u5185\u627f\u53d7\u5927\u91cf\u8bf7\u6c42\u800c\u5d29\u6389\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u53e3\u5c42\u589e\u52a0\u6821\u9a8c\uff0c\u5982\u7528\u6237\u9274\u6743\u6821\u9a8c\uff0cid\u505a\u57fa\u7840\u6821\u9a8c\uff0cid&lt;=0\u7684\u76f4\u63a5\u62e6\u622a\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u7f13\u5b58\u53d6\u4e0d\u5230\u7684\u6570\u636e\uff0c\u5728\u6570\u636e\u5e93\u4e2d\u4e5f\u6ca1\u6709\u53d6\u5230\uff0c\u8fd9\u65f6\u4e5f\u53ef\u4ee5\u5c06key-value\u5bf9\u5199\u4e3akey-null\uff0c\u7f13\u5b58\u6709\u6548\u65f6\u95f4\u53ef\u4ee5\u8bbe\u7f6e\u77ed\u70b9\uff0c\u598230\u79d2\uff08\u8bbe\u7f6e\u592a\u957f\u4f1a\u5bfc\u81f4\u6b63\u5e38\u60c5\u51b5\u4e5f\u6ca1\u6cd5\u4f7f\u7528\uff09\u3002\u8fd9\u6837\u53ef\u4ee5\u9632\u6b62\u653b\u51fb\u7528\u6237\u53cd\u590d\u7528\u540c\u4e00\u4e2aid\u66b4\u529b\u653b\u51fb<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u91c7\u7528\u5e03\u9686\u8fc7\u6ee4\u5668\uff0c\u5c06\u6240\u6709\u53ef\u80fd\u5b58\u5728\u7684\u6570\u636e\u54c8\u5e0c\u5230\u4e00\u4e2a\u8db3\u591f\u5927\u7684 bitmap \u4e2d\uff0c\u4e00\u4e2a\u4e00\u5b9a\u4e0d\u5b58\u5728\u7684\u6570\u636e\u4f1a\u88ab\u8fd9\u4e2a bitmap \u62e6\u622a\u6389\uff0c\u4ece\u800c\u907f\u514d\u4e86\u5bf9\u5e95\u5c42\u5b58\u50a8\u7cfb\u7edf\u7684\u67e5\u8be2\u538b\u529b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9644\u52a0\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u7a7a\u95f4\u7684\u5229\u7528\u5230\u8fbe\u4e86\u4e00\u79cd\u6781\u81f4\uff0c\u90a3\u5c31\u662fBitmap\u548c\u5e03\u9686\u8fc7\u6ee4\u5668(Bloom Filter)\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bitmap\uff1a\u5178\u578b\u7684\u5c31\u662f\u54c8\u5e0c\u8868<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f3a\u70b9\u662f\uff0cBitmap\u5bf9\u4e8e\u6bcf\u4e2a\u5143\u7d20\u53ea\u80fd\u8bb0\u5f551bit\u4fe1\u606f\uff0c\u5982\u679c\u8fd8\u60f3\u5b8c\u6210\u989d\u5916\u7684\u529f\u80fd\uff0c\u6050\u6015\u53ea\u80fd\u9760\u727a\u7272\u66f4\u591a\u7684\u7a7a\u95f4\u3001\u65f6\u95f4\u6765\u5b8c\u6210\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e03\u9686\u8fc7\u6ee4\u5668\uff08\u63a8\u8350\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c31\u662f\u5f15\u5165\u4e86k(k&gt;1)k(k&gt;1)\u4e2a\u76f8\u4e92\u72ec\u7acb\u7684\u54c8\u5e0c\u51fd\u6570\uff0c\u4fdd\u8bc1\u5728\u7ed9\u5b9a\u7684\u7a7a\u95f4\u3001\u8bef\u5224\u7387\u4e0b\uff0c\u5b8c\u6210\u5143\u7d20\u5224\u91cd\u7684\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b83\u7684\u4f18\u70b9\u662f\u7a7a\u95f4\u6548\u7387\u548c\u67e5\u8be2\u65f6\u95f4\u90fd\u8fdc\u8fdc\u8d85\u8fc7\u4e00\u822c\u7684\u7b97\u6cd5\uff0c\u7f3a\u70b9\u662f\u6709\u4e00\u5b9a\u7684\u8bef\u8bc6\u522b\u7387\u548c\u5220\u9664\u56f0\u96be\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bloom-Filter\u7b97\u6cd5\u7684\u6838\u5fc3\u601d\u60f3\u5c31\u662f\u5229\u7528\u591a\u4e2a\u4e0d\u540c\u7684Hash\u51fd\u6570\u6765\u89e3\u51b3\u201c\u51b2\u7a81\u201d\u3002<\/p>\n\n\n\n<p 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class=\"wp-block-paragraph\">Bloom-Filter\u4e00\u822c\u7528\u4e8e\u5728\u5927\u6570\u636e\u91cf\u7684\u96c6\u5408\u4e2d\u5224\u5b9a\u67d0\u5143\u7d20\u662f\u5426\u5b58\u5728\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">50\u3001\u7f13\u5b58\u51fb\u7a7f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f13\u5b58\u51fb\u7a7f\u662f\u6307\u7f13\u5b58\u4e2d\u6ca1\u6709\u4f46\u6570\u636e\u5e93\u4e2d\u6709\u7684\u6570\u636e\uff08\u4e00\u822c\u662f\u7f13\u5b58\u65f6\u95f4\u5230\u671f\uff09\uff0c\u8fd9\u65f6\u7531\u4e8e\u5e76\u53d1\u7528\u6237\u7279\u522b\u591a\uff0c\u540c\u65f6\u8bfb\u7f13\u5b58\u6ca1\u8bfb\u5230\u6570\u636e\uff0c\u53c8\u540c\u65f6\u53bb\u6570\u636e\u5e93\u53bb\u53d6\u6570\u636e\uff0c\u5f15\u8d77\u6570\u636e\u5e93\u538b\u529b\u77ac\u95f4\u589e\u5927\uff0c\u9020\u6210\u8fc7\u5927\u538b\u529b\u3002\u548c\u7f13\u5b58\u96ea\u5d29\u4e0d\u540c\u7684\u662f\uff0c\u7f13\u5b58\u51fb\u7a7f\u6307\u5e76\u53d1\u67e5\u540c\u4e00\u6761\u6570\u636e\uff0c\u7f13\u5b58\u96ea\u5d29\u662f\u4e0d\u540c\u6570\u636e\u90fd\u8fc7\u671f\u4e86\uff0c\u5f88\u591a\u6570\u636e\u90fd\u67e5\u4e0d\u5230\u4ece\u800c\u67e5\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u51b3\u65b9\u6848<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bbe\u7f6e\u70ed\u70b9\u6570\u636e\u6c38\u8fdc\u4e0d\u8fc7\u671f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u52a0\u4e92\u65a5\u9501\uff0c\u4e92\u65a5\u9501<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">51\u3001\u7f13\u5b58\u9884\u70ed<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f13\u5b58\u9884\u70ed\u5c31\u662f\u7cfb\u7edf\u4e0a\u7ebf\u540e\uff0c\u5c06\u76f8\u5173\u7684\u7f13\u5b58\u6570\u636e\u76f4\u63a5\u52a0\u8f7d\u5230\u7f13\u5b58\u7cfb\u7edf\u3002\u8fd9\u6837\u5c31\u53ef\u4ee5\u907f\u514d\u5728\u7528\u6237\u8bf7\u6c42\u7684\u65f6\u5019\uff0c\u5148\u67e5\u8be2\u6570\u636e\u5e93\uff0c\u7136\u540e\u518d\u5c06\u6570\u636e\u7f13\u5b58\u7684\u95ee\u9898\uff01\u7528\u6237\u76f4\u63a5\u67e5\u8be2\u4e8b\u5148\u88ab\u9884\u70ed\u7684\u7f13\u5b58\u6570\u636e\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u76f4\u63a5\u5199\u4e2a\u7f13\u5b58\u5237\u65b0\u9875\u9762\uff0c\u4e0a\u7ebf\u65f6\u624b\u5de5\u64cd\u4f5c\u4e00\u4e0b\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6570\u636e\u91cf\u4e0d\u5927\uff0c\u53ef\u4ee5\u5728\u9879\u76ee\u542f\u52a8\u7684\u65f6\u5019\u81ea\u52a8\u8fdb\u884c\u52a0\u8f7d\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9a\u65f6\u5237\u65b0\u7f13\u5b58\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">52\u3001\u7f13\u5b58\u964d\u7ea7<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u8bbf\u95ee\u91cf\u5267\u589e\u3001\u670d\u52a1\u51fa\u73b0\u95ee\u9898\uff08\u5982\u54cd\u5e94\u65f6\u95f4\u6162\u6216\u4e0d\u54cd\u5e94\uff09\u6216\u975e\u6838\u5fc3\u670d\u52a1\u5f71\u54cd\u5230\u6838\u5fc3\u6d41\u7a0b\u7684\u6027\u80fd\u65f6\uff0c\u4ecd\u7136\u9700\u8981\u4fdd\u8bc1\u670d\u52a1\u8fd8\u662f\u53ef\u7528\u7684\uff0c\u5373\u4f7f\u662f\u6709\u635f\u670d\u52a1\u3002\u7cfb\u7edf\u53ef\u4ee5\u6839\u636e\u4e00\u4e9b\u5173\u952e\u6570\u636e\u8fdb\u884c\u81ea\u52a8\u964d\u7ea7\uff0c\u4e5f\u53ef\u4ee5\u914d\u7f6e\u5f00\u5173\u5b9e\u73b0\u4eba\u5de5\u964d\u7ea7\u3002\u3001<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f13\u5b58\u964d\u7ea7\u7684\u6700\u7ec8\u76ee\u7684\u662f\u4fdd\u8bc1\u6838\u5fc3\u670d\u52a1\u53ef\u7528\uff0c\u5373\u4f7f\u662f\u6709\u635f\u7684\u3002\u800c\u4e14\u6709\u4e9b\u670d\u52a1\u662f\u65e0\u6cd5\u964d\u7ea7\u7684\uff08\u5982\u52a0\u5165\u8d2d\u7269\u8f66\u3001\u7ed3\u7b97\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8fdb\u884c\u964d\u7ea7\u4e4b\u524d\u8981\u5bf9\u7cfb\u7edf\u8fdb\u884c\u68b3\u7406\uff0c\u770b\u770b\u7cfb\u7edf\u662f\u4e0d\u662f\u53ef\u4ee5\u4e22\u5352\u4fdd\u5e05\uff1b\u4ece\u800c\u68b3\u7406\u51fa\u54ea\u4e9b\u5fc5\u987b\u8a93\u6b7b\u4fdd\u62a4\uff0c\u54ea\u4e9b\u53ef\u964d\u7ea7\uff1b\u6bd4\u5982\u53ef\u4ee5\u53c2\u8003\u65e5\u5fd7\u7ea7\u522b\u8bbe\u7f6e\u9884\u6848\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\uff1a\u6bd4\u5982\u6709\u4e9b\u670d\u52a1\u5076\u5c14\u56e0\u4e3a\u7f51\u7edc\u6296\u52a8\u6216\u8005\u670d\u52a1\u6b63\u5728\u4e0a\u7ebf\u800c\u8d85\u65f6\uff0c\u53ef\u4ee5\u81ea\u52a8\u964d\u7ea7\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8b66\u544a\uff1a\u6709\u4e9b\u670d\u52a1\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\u6210\u529f\u7387\u6709\u6ce2\u52a8\uff08\u5982\u572895~100%\u4e4b\u95f4\uff09\uff0c\u53ef\u4ee5\u81ea\u52a8\u964d\u7ea7\u6216\u4eba\u5de5\u964d\u7ea7\uff0c\u5e76\u53d1\u9001\u544a\u8b66\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9519\u8bef\uff1a\u6bd4\u5982\u53ef\u7528\u7387\u4f4e\u4e8e90%\uff0c\u6216\u8005\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u88ab\u6253\u7206\u4e86\uff0c\u6216\u8005\u8bbf\u95ee\u91cf\u7a81\u7136\u731b\u589e\u5230\u7cfb\u7edf\u80fd\u627f\u53d7\u7684\u6700\u5927\u9600\u503c\uff0c\u6b64\u65f6\u53ef\u4ee5\u6839\u636e\u60c5\u51b5\u81ea\u52a8\u964d\u7ea7\u6216\u8005\u4eba\u5de5\u964d\u7ea7\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e25\u91cd\u9519\u8bef\uff1a\u6bd4\u5982\u56e0\u4e3a\u7279\u6b8a\u539f\u56e0\u6570\u636e\u9519\u8bef\u4e86\uff0c\u6b64\u65f6\u9700\u8981\u7d27\u6025\u4eba\u5de5\u964d\u7ea7\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u670d\u52a1\u964d\u7ea7\u7684\u76ee\u7684\uff0c\u662f\u4e3a\u4e86\u9632\u6b62Redis\u670d\u52a1\u6545\u969c\uff0c\u5bfc\u81f4\u6570\u636e\u5e93\u8ddf\u7740\u4e00\u8d77\u53d1\u751f\u96ea\u5d29\u95ee\u9898\u3002\u56e0\u6b64\uff0c\u5bf9\u4e8e\u4e0d\u91cd\u8981\u7684\u7f13\u5b58\u6570\u636e\uff0c\u53ef\u4ee5\u91c7\u53d6\u670d\u52a1\u964d\u7ea7\u7b56\u7565\uff0c\u4f8b\u5982\u4e00\u4e2a\u6bd4\u8f83\u5e38\u89c1\u7684\u505a\u6cd5\u5c31\u662f\uff0cRedis\u51fa\u73b0\u95ee\u9898\uff0c\u4e0d\u53bb\u6570\u636e\u5e93\u67e5\u8be2\uff0c\u800c\u662f\u76f4\u63a5\u8fd4\u56de\u9ed8\u8ba4\u503c\u7ed9\u7528\u6237\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">53\u3001\u70ed\u70b9\u6570\u636e\u548c\u51b7\u6570\u636e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u70ed\u70b9\u6570\u636e\uff0c\u7f13\u5b58\u624d\u6709\u4ef7\u503c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u51b7\u6570\u636e\u800c\u8a00\uff0c\u5927\u90e8\u5206\u6570\u636e\u53ef\u80fd\u8fd8\u6ca1\u6709\u518d\u6b21\u8bbf\u95ee\u5230\u5c31\u5df2\u7ecf\u88ab\u6324\u51fa\u5185\u5b58\uff0c\u4e0d\u4ec5\u5360\u7528\u5185\u5b58\uff0c\u800c\u4e14\u4ef7\u503c\u4e0d\u5927\u3002\u9891\u7e41\u4fee\u6539\u7684\u6570\u636e\uff0c\u770b\u60c5\u51b5\u8003\u8651\u4f7f\u7528\u7f13\u5b58<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u70ed\u70b9\u6570\u636e\uff0c\u6bd4\u5982\u6211\u4eec\u7684\u67d0IM\u4ea7\u54c1\uff0c\u751f\u65e5\u795d\u798f\u6a21\u5757\uff0c\u5f53\u5929\u7684\u5bff\u661f\u5217\u8868\uff0c\u7f13\u5b58\u4ee5\u540e\u53ef\u80fd\u8bfb\u53d6\u6570\u5341\u4e07\u6b21\u3002\u518d\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u67d0\u5bfc\u822a\u4ea7\u54c1\uff0c\u6211\u4eec\u5c06\u5bfc\u822a\u4fe1\u606f\uff0c\u7f13\u5b58\u4ee5\u540e\u53ef\u80fd\u8bfb\u53d6\u6570\u767e\u4e07\u6b21\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6570\u636e\u66f4\u65b0\u524d\u81f3\u5c11\u8bfb\u53d6\u4e24\u6b21\uff0c\u7f13\u5b58\u624d\u6709\u610f\u4e49\u3002\u8fd9\u4e2a\u662f\u6700\u57fa\u672c\u7684\u7b56\u7565\uff0c\u5982\u679c\u7f13\u5b58\u8fd8\u6ca1\u6709\u8d77\u4f5c\u7528\u5c31\u5931\u6548\u4e86\uff0c\u90a3\u5c31\u6ca1\u6709\u592a\u5927\u4ef7\u503c\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u90a3\u5b58\u4e0d\u5b58\u5728\uff0c\u4fee\u6539\u9891\u7387\u5f88\u9ad8\uff0c\u4f46\u662f\u53c8\u4e0d\u5f97\u4e0d\u8003\u8651\u7f13\u5b58\u7684\u573a\u666f\u5462\uff1f\u6709\uff01\u6bd4\u5982\uff0c\u8fd9\u4e2a\u8bfb\u53d6\u63a5\u53e3\u5bf9\u6570\u636e\u5e93\u7684\u538b\u529b\u5f88\u5927\uff0c\u4f46\u662f\u53c8\u662f\u70ed\u70b9\u6570\u636e\uff0c\u8fd9\u4e2a\u65f6\u5019\u5c31\u9700\u8981\u8003\u8651\u901a\u8fc7\u7f13\u5b58\u624b\u6bb5\uff0c\u51cf\u5c11\u6570\u636e\u5e93\u7684\u538b\u529b\uff0c\u6bd4\u5982\u6211\u4eec\u7684\u67d0\u52a9\u624b\u4ea7\u54c1\u7684\uff0c\u70b9\u8d5e\u6570\uff0c\u6536\u85cf\u6570\uff0c\u5206\u4eab\u6570\u7b49\u662f\u975e\u5e38\u5178\u578b\u7684\u70ed\u70b9\u6570\u636e\uff0c\u4f46\u662f\u53c8\u4e0d\u65ad\u53d8\u5316\uff0c\u6b64\u65f6\u5c31\u9700\u8981\u5c06\u6570\u636e\u540c\u6b65\u4fdd\u5b58\u5230Redis\u7f13\u5b58\uff0c\u51cf\u5c11\u6570\u636e\u5e93\u538b\u529b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">54\u3001\u7f13\u5b58\u70ed\u70b9key<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f13\u5b58\u4e2d\u7684\u4e00\u4e2aKey(\u6bd4\u5982\u4e00\u4e2a\u4fc3\u9500\u5546\u54c1)\uff0c\u5728\u67d0\u4e2a\u65f6\u95f4\u70b9\u8fc7\u671f\u7684\u65f6\u5019\uff0c\u6070\u597d\u5728\u8fd9\u4e2a\u65f6\u95f4\u70b9\u5bf9\u8fd9\u4e2aKey\u6709\u5927\u91cf\u7684\u5e76\u53d1\u8bf7\u6c42\u8fc7\u6765\uff0c\u8fd9\u4e9b\u8bf7\u6c42\u53d1\u73b0\u7f13\u5b58\u8fc7\u671f\u4e00\u822c\u90fd\u4f1a\u4ece\u540e\u7aefDB\u52a0\u8f7d\u6570\u636e\u5e76\u56de\u8bbe\u5230\u7f13\u5b58\uff0c\u8fd9\u4e2a\u65f6\u5019\u5927\u5e76\u53d1\u7684\u8bf7\u6c42\u53ef\u80fd\u4f1a\u77ac\u95f4\u628a\u540e\u7aefDB\u538b\u57ae\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u7f13\u5b58\u67e5\u8be2\u52a0\u9501\uff0c\u5982\u679cKEY\u4e0d\u5b58\u5728\uff0c\u5c31\u52a0\u9501\uff0c\u7136\u540e\u67e5DB\u5165\u7f13\u5b58\uff0c\u7136\u540e\u89e3\u9501\uff1b\u5176\u4ed6\u8fdb\u7a0b\u5982\u679c\u53d1\u73b0\u6709\u9501\u5c31\u7b49\u5f85\uff0c\u7136\u540e\u7b49\u89e3\u9501\u540e\u8fd4\u56de\u6570\u636e\u6216\u8005\u8fdb\u5165DB\u67e5\u8be2<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u7528\u5de5\u5177<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">55\u3001Redis\u652f\u6301\u7684Java\u5ba2\u6237\u7aef\u90fd\u6709\u54ea\u4e9b\uff1f\u5b98\u65b9\u63a8\u8350\u7528\u54ea\u4e2a\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redisson\u3001Jedis\u3001lettuce\u7b49\u7b49\uff0c\u5b98\u65b9\u63a8\u8350\u4f7f\u7528Redisson\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">56\u3001Redis\u548cRedisson\u6709\u4ec0\u4e48\u5173\u7cfb\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redisson\u662f\u4e00\u4e2a\u9ad8\u7ea7\u7684\u5206\u5e03\u5f0f\u534f\u8c03Redis\u5ba2\u670d\u7aef\uff0c\u80fd\u5e2e\u52a9\u7528\u6237\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\u8f7b\u677e\u5b9e\u73b0\u4e00\u4e9bJava\u7684\u5bf9\u8c61 (Bloom filter, BitSet, Set, SetMultimap, ScoredSortedSet, SortedSet, Map, ConcurrentMap, List, ListMultimap, Queue, BlockingQueue, Deque, BlockingDeque, Semaphore, Lock, ReadWriteLock, AtomicLong, CountDownLatch, Publish \/ Subscribe, HyperLogLog)\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">57\u3001Jedis\u4e0eRedisson\u5bf9\u6bd4\u6709\u4ec0\u4e48\u4f18\u7f3a\u70b9\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jedis\u662fRedis\u7684Java\u5b9e\u73b0\u7684\u5ba2\u6237\u7aef\uff0c\u5176API\u63d0\u4f9b\u4e86\u6bd4\u8f83\u5168\u9762\u7684Redis\u547d\u4ee4\u7684\u652f\u6301\uff1bRedisson\u5b9e\u73b0\u4e86\u5206\u5e03\u5f0f\u548c\u53ef\u6269\u5c55\u7684Java\u6570\u636e\u7ed3\u6784\uff0c\u548cJedis\u76f8\u6bd4\uff0c\u529f\u80fd\u8f83\u4e3a\u7b80\u5355\uff0c\u4e0d\u652f\u6301\u5b57\u7b26\u4e32\u64cd\u4f5c\uff0c\u4e0d\u652f\u6301\u6392\u5e8f\u3001\u4e8b\u52a1\u3001\u7ba1\u9053\u3001\u5206\u533a\u7b49Redis\u7279\u6027\u3002Redisson\u7684\u5b97\u65e8\u662f\u4fc3\u8fdb\u4f7f\u7528\u8005\u5bf9Redis\u7684\u5173\u6ce8\u5206\u79bb\uff0c\u4ece\u800c\u8ba9\u4f7f\u7528\u8005\u80fd\u591f\u5c06\u7cbe\u529b\u66f4\u96c6\u4e2d\u5730\u653e\u5728\u5904\u7406\u4e1a\u52a1\u903b\u8f91\u4e0a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5176\u4ed6\u95ee\u9898<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">58\u3001Redis\u4e0eMemcached\u7684\u533a\u522b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e24\u8005\u90fd\u662f\u975e\u5173\u7cfb\u578b\u5185\u5b58\u952e\u503c\u6570\u636e\u5e93\uff0c\u73b0\u5728\u516c\u53f8\u4e00\u822c\u90fd\u662f\u7528 Redis \u6765\u5b9e\u73b0\u7f13\u5b58\uff0c\u800c\u4e14 Redis \u81ea\u8eab\u4e5f\u8d8a\u6765\u8d8a\u5f3a\u5927\u4e86\uff01Redis \u4e0e Memcached \u4e3b\u8981\u6709\u4ee5\u4e0b\u4e0d\u540c\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015917289.jpg\" alt=\"\" \/><figcaption>Redis\u4e0eMemcached\u7684\u533a\u522b<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">(1) memcached\u6240\u6709\u7684\u503c\u5747\u662f\u7b80\u5355\u7684\u5b57\u7b26\u4e32\uff0credis\u4f5c\u4e3a\u5176\u66ff\u4ee3\u8005\uff0c\u652f\u6301\u66f4\u4e3a\u4e30\u5bcc\u7684\u6570\u636e\u7c7b\u578b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">(2) redis\u7684\u901f\u5ea6\u6bd4memcached\u5feb\u5f88\u591a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">(3) redis\u53ef\u4ee5\u6301\u4e45\u5316\u5176\u6570\u636e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">59\u3001\u5982\u4f55\u4fdd\u8bc1\u7f13\u5b58\u4e0e\u6570\u636e\u5e93\u53cc\u5199\u65f6\u7684\u6570\u636e\u4e00\u81f4\u6027\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f60\u53ea\u8981\u7528\u7f13\u5b58\uff0c\u5c31\u53ef\u80fd\u4f1a\u6d89\u53ca\u5230\u7f13\u5b58\u4e0e\u6570\u636e\u5e93\u53cc\u5b58\u50a8\u53cc\u5199\uff0c\u4f60\u53ea\u8981\u662f\u53cc\u5199\uff0c\u5c31\u4e00\u5b9a\u4f1a\u6709\u6570\u636e\u4e00\u81f4\u6027\u7684\u95ee\u9898\uff0c\u90a3\u4e48\u4f60\u5982\u4f55\u89e3\u51b3\u4e00\u81f4\u6027\u95ee\u9898\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u6765\u8bf4\uff0c\u5c31\u662f\u5982\u679c\u4f60\u7684\u7cfb\u7edf\u4e0d\u662f\u4e25\u683c\u8981\u6c42\u7f13\u5b58+\u6570\u636e\u5e93\u5fc5\u987b\u4e00\u81f4\u6027\u7684\u8bdd\uff0c\u7f13\u5b58\u53ef\u4ee5\u7a0d\u5fae\u7684\u8ddf\u6570\u636e\u5e93\u5076\u5c14\u6709\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5\uff0c\u6700\u597d\u4e0d\u8981\u505a\u8fd9\u4e2a\u65b9\u6848\uff0c\u8bfb\u8bf7\u6c42\u548c\u5199\u8bf7\u6c42\u4e32\u884c\u5316\uff0c\u4e32\u5230\u4e00\u4e2a\u5185\u5b58\u961f\u5217\u91cc\u53bb\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u4fdd\u8bc1\u4e00\u5b9a\u4e0d\u4f1a\u51fa\u73b0\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e32\u884c\u5316\u4e4b\u540e\uff0c\u5c31\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u7684\u541e\u5410\u91cf\u4f1a\u5927\u5e45\u5ea6\u7684\u964d\u4f4e\uff0c\u7528\u6bd4\u6b63\u5e38\u60c5\u51b5\u4e0b\u591a\u51e0\u500d\u7684\u673a\u5668\u53bb\u652f\u6491\u7ebf\u4e0a\u7684\u4e00\u4e2a\u8bf7\u6c42\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd8\u6709\u4e00\u79cd\u65b9\u5f0f\u5c31\u662f\u53ef\u80fd\u4f1a\u6682\u65f6\u4ea7\u751f\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5\uff0c\u4f46\u662f\u53d1\u751f\u7684\u51e0\u7387\u7279\u522b\u5c0f\uff0c\u5c31\u662f\u5148\u66f4\u65b0\u6570\u636e\u5e93\uff0c\u7136\u540e\u518d\u5220\u9664\u7f13\u5b58\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/1585015926554.jpg\" alt=\"\" \/><figcaption>\u7f13\u5b58\u4e0e\u6570\u636e\u5e93\u53cc\u5199\u65f6\u7684\u6570\u636e\u4e00\u81f4\u6027<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">60\u3001Redis\u5e38\u89c1\u6027\u80fd\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Master\u6700\u597d\u4e0d\u8981\u505a\u4efb\u4f55\u6301\u4e45\u5316\u5de5\u4f5c\uff0c\u5305\u62ec\u5185\u5b58\u5feb\u7167\u548cAOF\u65e5\u5fd7\u6587\u4ef6\uff0c\u7279\u522b\u662f\u4e0d\u8981\u542f\u7528\u5185\u5b58\u5feb\u7167\u505a\u6301\u4e45\u5316\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u6570\u636e\u6bd4\u8f83\u5173\u952e\uff0c\u67d0\u4e2aSlave\u5f00\u542fAOF\u5907\u4efd\u6570\u636e\uff0c\u7b56\u7565\u4e3a\u6bcf\u79d2\u540c\u6b65\u4e00\u6b21\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4e86\u4e3b\u4ece\u590d\u5236\u7684\u901f\u5ea6\u548c\u8fde\u63a5\u7684\u7a33\u5b9a\u6027\uff0cSlave\u548cMaster\u6700\u597d\u5728\u540c\u4e00\u4e2a\u5c40\u57df\u7f51\u5185\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c3d\u91cf\u907f\u514d\u5728\u538b\u529b\u8f83\u5927\u7684\u4e3b\u5e93\u4e0a\u589e\u52a0\u4ece\u5e93<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Master\u8c03\u7528BGREWRITEAOF\u91cd\u5199AOF\u6587\u4ef6\uff0cAOF\u5728\u91cd\u5199\u7684\u65f6\u5019\u4f1a\u5360\u5927\u91cf\u7684CPU\u548c\u5185\u5b58\u8d44\u6e90\uff0c\u5bfc\u81f4\u670d\u52a1load\u8fc7\u9ad8\uff0c\u51fa\u73b0\u77ed\u6682\u670d\u52a1\u6682\u505c\u73b0\u8c61\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4e86Master\u7684\u7a33\u5b9a\u6027\uff0c\u4e3b\u4ece\u590d\u5236\u4e0d\u8981\u7528\u56fe\u72b6\u7ed3\u6784\uff0c\u7528\u5355\u5411\u94fe\u8868\u7ed3\u6784\u66f4\u7a33\u5b9a\uff0c\u5373\u4e3b\u4ece\u5173\u7cfb\u4e3a\uff1aMaster&lt;\u2013Slave1&lt;\u2013Slave2&lt;\u2013Slave3\u2026\uff0c\u8fd9\u6837\u7684\u7ed3\u6784\u4e5f\u65b9\u4fbf\u89e3\u51b3\u5355\u70b9\u6545\u969c\u95ee\u9898\uff0c\u5b9e\u73b0Slave\u5bf9Master\u7684\u66ff\u6362\uff0c\u4e5f\u5373\uff0c\u5982\u679cMaster\u6302\u4e86\uff0c\u53ef\u4ee5\u7acb\u9a6c\u542f\u7528Slave1\u505aMaster\uff0c\u5176\u4ed6\u4e0d\u53d8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">61\u3001Redis\u5b98\u65b9\u4e3a\u4ec0\u4e48\u4e0d\u63d0\u4f9bWindows\u7248\u672c\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u4e3a\u76ee\u524dLinux\u7248\u672c\u5df2\u7ecf\u76f8\u5f53\u7a33\u5b9a\uff0c\u800c\u4e14\u7528\u6237\u91cf\u5f88\u5927\uff0c\u65e0\u9700\u5f00\u53d1windows\u7248\u672c\uff0c\u53cd\u800c\u4f1a\u5e26\u6765\u517c\u5bb9\u6027\u7b49\u95ee\u9898\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">62\u3001\u4e00\u4e2a\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u503c\u80fd\u5b58\u50a8\u6700\u5927\u5bb9\u91cf\u662f\u591a\u5c11\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">512M<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">63\u3001Redis\u5982\u4f55\u505a\u5927\u91cf\u6570\u636e\u63d2\u5165\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis2.6\u5f00\u59cbredis-cli\u652f\u6301\u4e00\u79cd\u65b0\u7684\u88ab\u79f0\u4e4b\u4e3apipe mode\u7684\u65b0\u6a21\u5f0f\u7528\u4e8e\u6267\u884c\u5927\u91cf\u6570\u636e\u63d2\u5165\u5de5\u4f5c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">64\u3001\u5047\u5982Redis\u91cc\u9762\u67091\u4ebf\u4e2akey\uff0c\u5176\u4e2d\u670910w\u4e2akey\u662f\u4ee5\u67d0\u4e2a\u56fa\u5b9a\u7684\u5df2\u77e5\u7684\u524d\u7f00\u5f00\u5934\u7684\uff0c\u5982\u679c\u5c06\u5b83\u4eec\u5168\u90e8\u627e\u51fa\u6765\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528keys\u6307\u4ee4\u53ef\u4ee5\u626b\u51fa\u6307\u5b9a\u6a21\u5f0f\u7684key\u5217\u8868\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u65b9\u63a5\u7740\u8ffd\u95ee\uff1a\u5982\u679c\u8fd9\u4e2aredis\u6b63\u5728\u7ed9\u7ebf\u4e0a\u7684\u4e1a\u52a1\u63d0\u4f9b\u670d\u52a1\uff0c\u90a3\u4f7f\u7528keys\u6307\u4ee4\u4f1a\u6709\u4ec0\u4e48\u95ee\u9898\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u65f6\u5019\u4f60\u8981\u56de\u7b54redis\u5173\u952e\u7684\u4e00\u4e2a\u7279\u6027\uff1aredis\u7684\u5355\u7ebf\u7a0b\u7684\u3002keys\u6307\u4ee4\u4f1a\u5bfc\u81f4\u7ebf\u7a0b\u963b\u585e\u4e00\u6bb5\u65f6\u95f4\uff0c\u7ebf\u4e0a\u670d\u52a1\u4f1a\u505c\u987f\uff0c\u76f4\u5230\u6307\u4ee4\u6267\u884c\u5b8c\u6bd5\uff0c\u670d\u52a1\u624d\u80fd\u6062\u590d\u3002\u8fd9\u4e2a\u65f6\u5019\u53ef\u4ee5\u4f7f\u7528scan\u6307\u4ee4\uff0cscan\u6307\u4ee4\u53ef\u4ee5\u65e0\u963b\u585e\u7684\u63d0\u53d6\u51fa\u6307\u5b9a\u6a21\u5f0f\u7684key\u5217\u8868\uff0c\u4f46\u662f\u4f1a\u6709\u4e00\u5b9a\u7684\u91cd\u590d\u6982\u7387\uff0c\u5728\u5ba2\u6237\u7aef\u505a\u4e00\u6b21\u53bb\u91cd\u5c31\u53ef\u4ee5\u4e86\uff0c\u4f46\u662f\u6574\u4f53\u6240\u82b1\u8d39\u7684\u65f6\u95f4\u4f1a\u6bd4\u76f4\u63a5\u7528keys\u6307\u4ee4\u957f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">65\u3001\u4f7f\u7528Redis\u505a\u8fc7\u5f02\u6b65\u961f\u5217\u5417\uff0c\u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528list\u7c7b\u578b\u4fdd\u5b58\u6570\u636e\u4fe1\u606f\uff0crpush\u751f\u4ea7\u6d88\u606f\uff0clpop\u6d88\u8d39\u6d88\u606f\uff0c\u5f53lpop\u6ca1\u6709\u6d88\u606f\u65f6\uff0c\u53ef\u4ee5sleep\u4e00\u6bb5\u65f6\u95f4\uff0c\u7136\u540e\u518d\u68c0\u67e5\u6709\u6ca1\u6709\u4fe1\u606f\uff0c\u5982\u679c\u4e0d\u60f3sleep\u7684\u8bdd\uff0c\u53ef\u4ee5\u4f7f\u7528blpop, \u5728\u6ca1\u6709\u4fe1\u606f\u7684\u65f6\u5019\uff0c\u4f1a\u4e00\u76f4\u963b\u585e\uff0c\u76f4\u5230\u4fe1\u606f\u7684\u5230\u6765\u3002redis\u53ef\u4ee5\u901a\u8fc7pub\/sub\u4e3b\u9898\u8ba2\u9605\u6a21\u5f0f\u5b9e\u73b0\u4e00\u4e2a\u751f\u4ea7\u8005\uff0c\u591a\u4e2a\u6d88\u8d39\u8005\uff0c\u5f53\u7136\u4e5f\u5b58\u5728\u4e00\u5b9a\u7684\u7f3a\u70b9\uff0c\u5f53\u6d88\u8d39\u8005\u4e0b\u7ebf\u65f6\uff0c\u751f\u4ea7\u7684\u6d88\u606f\u4f1a\u4e22\u5931\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">66\u3001Redis\u5982\u4f55\u5b9e\u73b0\u5ef6\u65f6\u961f\u5217\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528sortedset\uff0c\u4f7f\u7528\u65f6\u95f4\u6233\u505ascore, \u6d88\u606f\u5185\u5bb9\u4f5c\u4e3akey,\u8c03\u7528zadd\u6765\u751f\u4ea7\u6d88\u606f\uff0c\u6d88\u8d39\u8005\u4f7f\u7528zrangbyscore\u83b7\u53d6n\u79d2\u4e4b\u524d\u7684\u6570\u636e\u505a\u8f6e\u8be2\u5904\u7406\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">67\u3001Redis\u56de\u6536\u8fdb\u7a0b\u5982\u4f55\u5de5\u4f5c\u7684\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fd0\u884c\u4e86\u65b0\u7684\u547d\u4ee4\uff0c\u6dfb\u52a0\u4e86\u65b0\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u68c0\u67e5\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u5982\u679c\u5927\u4e8emaxmemory\u7684\u9650\u5236\uff0c \u5219\u6839\u636e\u8bbe\u5b9a\u597d\u7684\u7b56\u7565\u8fdb\u884c\u56de\u6536\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u4e2a\u65b0\u7684\u547d\u4ee4\u88ab\u6267\u884c\uff0c\u7b49\u7b49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u4ee5\u6211\u4eec\u4e0d\u65ad\u5730\u7a7f\u8d8a\u5185\u5b58\u9650\u5236\u7684\u8fb9\u754c\uff0c\u901a\u8fc7\u4e0d\u65ad\u8fbe\u5230\u8fb9\u754c\u7136\u540e\u4e0d\u65ad\u5730\u56de\u6536\u56de\u5230\u8fb9\u754c\u4ee5\u4e0b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4e00\u4e2a\u547d\u4ee4\u7684\u7ed3\u679c\u5bfc\u81f4\u5927\u91cf\u5185\u5b58\u88ab\u4f7f\u7528\uff08\u4f8b\u5982\u5f88\u5927\u7684\u96c6\u5408\u7684\u4ea4\u96c6\u4fdd\u5b58\u5230\u4e00\u4e2a\u65b0\u7684\u952e\uff09\uff0c\u4e0d\u7528\u591a\u4e45\u5185\u5b58\u9650\u5236\u5c31\u4f1a\u88ab\u8fd9\u4e2a\u5185\u5b58\u4f7f\u7528\u91cf\u8d85\u8d8a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">68\u3001Redis\u56de\u6536\u4f7f\u7528\u7684\u662f\u4ec0\u4e48\u7b97\u6cd5\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LRU\u7b97\u6cd5\u3002<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=4920\">2020 \u5e74\u6700\u65b0\u7248 68 \u9053Redis\u9762\u8bd5\u9898\uff0c20000 \u5b57\u5e72\u8d27\uff0c\u8d76\u7d27\u6536\u85cf\u8d77\u6765\u5907\u7528\uff01<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>Redis(Remote Dictionary Server) \u662f\u4e00\u4e2a\u4f7f\u7528 C \u8bed\u8a00\u7f16\u5199\u7684\uff0c\u5f00\u6e90\u7684\uff08BSD\u8bb8\u53ef [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[669,672,1876,1879,1877],"class_list":["post-4920","post","type-post","status-publish","format-standard","hentry","category-java","tag-redis","tag-redis-cluster","tag-redis-hgetall-","tag-redis-hgetall"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4920","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4920"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4920\/revisions"}],"predecessor-version":[{"id":4921,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4920\/revisions\/4921"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}