{"id":126147,"date":"2024-10-26T02:18:21","date_gmt":"2024-10-25T18:18:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/126147\/"},"modified":"2024-10-26T02:18:21","modified_gmt":"2024-10-25T18:18:21","slug":"redis-%e9%80%a3%e6%8e%a5%e6%bb%bf%e8%bc%89%e5%a0%b1%e8%ad%a6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/126147\/","title":{"rendered":"Redis \u9023\u63a5\u6eff\u8f09\u5831\u8b66"},"content":{"rendered":"<h1 id=\"redis-%e9%80%a3%e6%8e%a5%e6%bb%bf%e8%bc%89%e5%a0%b1%e8%ad%a6-xbkgWzDMJC\">Redis \u9023\u63a5\u6eff\u8f09\u5831\u8b66<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u3002\u7136\u800c\uff0c\u96a8\u8457\u7528\u6236\u6578\u91cf\u7684\u589e\u52a0\u548c\u8acb\u6c42\u7684\u589e\u591a\uff0cRedis \u53ef\u80fd\u6703\u9762\u81e8\u9023\u63a5\u6eff\u8f09\u7684\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u9023\u63a5\u6eff\u8f09\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u8a2d\u7f6e\u5831\u8b66\u7cfb\u7d71\u4f86\u53ca\u6642\u61c9\u5c0d\u9019\u4e00\u554f\u984c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis-%e9%80%a3%e6%8e%a5%e6%bb%bf%e8%bc%89%ef%bc%9f-xbkgWzDMJC\">\u4ec0\u9ebc\u662f Redis \u9023\u63a5\u6eff\u8f09\uff1f<\/h2>\n<p>Redis \u9023\u63a5\u6eff\u8f09\u662f\u6307\u7576 Redis \u4f3a\u670d\u5668\u7684\u6700\u5927\u9023\u63a5\u6578\u9054\u5230\u4e0a\u9650\u6642\uff0c\u65b0\u7684\u9023\u63a5\u8acb\u6c42\u5c07\u7121\u6cd5\u88ab\u63a5\u53d7\u3002\u9019\u901a\u5e38\u6703\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u51fa\u73fe\u5ef6\u9072\u6216\u932f\u8aa4\uff0c\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u3002Redis \u7684\u9ed8\u8a8d\u6700\u5927\u9023\u63a5\u6578\u70ba 10,000\uff0c\u4f46\u9019\u4e00\u6578\u5b57\u53ef\u4ee5\u6839\u64da\u4f3a\u670d\u5668\u7684\u6027\u80fd\u548c\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e9%80%a3%e6%8e%a5%e6%bb%bf%e8%bc%89%e7%9a%84%e5%8e%9f%e5%9b%a0-xbkgWzDMJC\">\u9023\u63a5\u6eff\u8f09\u7684\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u9ad8\u6d41\u91cf\u8acb\u6c42\uff1a<\/strong>\u7576\u61c9\u7528\u7a0b\u5e8f\u7684\u7528\u6236\u6578\u91cf\u6fc0\u589e\u6642\uff0c\u8acb\u6c42\u6578\u91cf\u4e5f\u6703\u96a8\u4e4b\u589e\u52a0\uff0c\u53ef\u80fd\u5c0e\u81f4 Redis \u9023\u63a5\u6578\u9054\u5230\u4e0a\u9650\u3002<\/li>\n<li><strong>\u4e0d\u7576\u7684\u9023\u63a5\u7ba1\u7406\uff1a<\/strong>\u5982\u679c\u61c9\u7528\u7a0b\u5e8f\u672a\u80fd\u6b63\u78ba\u95dc\u9589\u4e0d\u518d\u4f7f\u7528\u7684\u9023\u63a5\uff0c\u5c07\u6703\u5c0e\u81f4\u9023\u63a5\u6578\u4e0d\u65b7\u589e\u52a0\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u9650\u5236\uff1a<\/strong>\u4f3a\u670d\u5668\u7684\u786c\u9ad4\u8cc7\u6e90\uff08\u5982 CPU \u548c\u5167\u5b58\uff09\u4e0d\u8db3\uff0c\u53ef\u80fd\u6703\u5f71\u97ff Redis \u7684\u6027\u80fd\uff0c\u5c0e\u81f4\u9023\u63a5\u6578\u7121\u6cd5\u91cb\u653e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%80%a3%e6%8e%a5%e6%bb%bf%e8%bc%89%e7%9a%84%e5%bd%b1%e9%9f%bf-xbkgWzDMJC\">\u9023\u63a5\u6eff\u8f09\u7684\u5f71\u97ff<\/h2>\n<p>\u7576 Redis \u9047\u5230\u9023\u63a5\u6eff\u8f09\u7684\u60c5\u6cc1\u6642\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u4ee5\u4e0b\u5e7e\u7a2e\u5f71\u97ff\uff1a<\/p>\n<ul>\n<li><strong>\u8acb\u6c42\u5931\u6557\uff1a<\/strong>\u65b0\u7684\u8acb\u6c42\u7121\u6cd5\u5efa\u7acb\u9023\u63a5\uff0c\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u51fa\u73fe\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6027\u80fd\u4e0b\u964d\uff1a<\/strong>\u5373\u4f7f\u90e8\u5206\u8acb\u6c42\u80fd\u5920\u6210\u529f\uff0c\u6574\u9ad4\u6027\u80fd\u4e5f\u53ef\u80fd\u56e0\u70ba\u8cc7\u6e90\u7af6\u722d\u800c\u4e0b\u964d\u3002<\/li>\n<li><strong>\u7528\u6236\u9ad4\u9a57\u53d7\u640d\uff1a<\/strong>\u7528\u6236\u53ef\u80fd\u6703\u56e0\u70ba\u5ef6\u9072\u6216\u932f\u8aa4\u800c\u611f\u5230\u4e0d\u6eff\uff0c\u5f71\u97ff\u61c9\u7528\u7684\u4f7f\u7528\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae-redis-%e9%80%a3%e6%8e%a5%e6%bb%bf%e8%bc%89%e5%a0%b1%e8%ad%a6-xbkgWzDMJC\">\u5982\u4f55\u8a2d\u7f6e Redis \u9023\u63a5\u6eff\u8f09\u5831\u8b66<\/h2>\n<p>\u70ba\u4e86\u53ca\u6642\u767c\u73fe\u548c\u61c9\u5c0d Redis \u9023\u63a5\u6eff\u8f09\u7684\u554f\u984c\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u5831\u8b66\u7cfb\u7d71\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e7%9b%a3%e6%8e%a7%e5%b7%a5%e5%85%b7-xbkgWzDMJC\">1. \u4f7f\u7528\u76e3\u63a7\u5de5\u5177<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528\u5982 Prometheus\u3001Grafana \u7b49\u76e3\u63a7\u5de5\u5177\u4f86\u76e3\u63a7 Redis \u7684\u6027\u80fd\u6307\u6a19\uff0c\u5305\u62ec\u7576\u524d\u9023\u63a5\u6578\u3001\u6700\u5927\u9023\u63a5\u6578\u7b49\u3002\u8a2d\u7f6e\u95be\u503c\uff0c\u7576\u7576\u524d\u9023\u63a5\u6578\u63a5\u8fd1\u6700\u5927\u9023\u63a5\u6578\u6642\uff0c\u89f8\u767c\u5831\u8b66\u3002<\/p>\n<h3 id=\"2-redis-%e8%87%aa%e5%b8%b6%e7%9a%84%e7%9b%a3%e6%8e%a7%e5%91%bd%e4%bb%a4-xbkgWzDMJC\">2. Redis \u81ea\u5e36\u7684\u76e3\u63a7\u547d\u4ee4<\/h3>\n<p>Redis \u63d0\u4f9b\u4e86\u4e00\u4e9b\u547d\u4ee4\u4f86\u76e3\u63a7\u9023\u63a5\u72c0\u614b\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>INFO clients<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u986f\u793a\u7576\u524d\u7684\u9023\u63a5\u6578\u548c\u6700\u5927\u9023\u63a5\u6578\u3002\u53ef\u4ee5\u5b9a\u671f\u57f7\u884c\u9019\u500b\u547d\u4ee4\uff0c\u4e26\u6839\u64da\u7d50\u679c\u8a2d\u7f6e\u5831\u8b66\u3002<\/p>\n<h3 id=\"3-%e8%87%aa%e5%ae%9a%e7%be%a9%e8%85%b3%e6%9c%ac-xbkgWzDMJC\">3. \u81ea\u5b9a\u7fa9\u8173\u672c<\/h3>\n<p>\u53ef\u4ee5\u7de8\u5beb\u81ea\u5b9a\u7fa9\u8173\u672c\uff0c\u5b9a\u671f\u6aa2\u67e5 Redis \u7684\u9023\u63a5\u72c0\u614b\uff0c\u4e26\u5728\u9054\u5230\u95be\u503c\u6642\u767c\u9001\u901a\u77e5\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 Python \u7684 Redis \u5eab\u4f86\u6aa2\u67e5\u9023\u63a5\u6578\uff1a<\/p>\n<pre><code>import redis\n\nr = redis.Redis(host='localhost', port=6379)\ninfo = r.info('clients')\ncurrent_connections = info['connected_clients']\nmax_connections = info['maxclients']\n\nif current_connections &gt;= max_connections:\n    print(\"\u8b66\u544a\uff1aRedis \u9023\u63a5\u6578\u5df2\u9054\u5230\u4e0a\u9650\uff01\")\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xbkgWzDMJC\">\u7e3d\u7d50<\/h2>\n<p>Redis \u9023\u63a5\u6eff\u8f09\u662f\u4e00\u500b\u9700\u8981\u91cd\u8996\u7684\u554f\u984c\uff0c\u53ca\u6642\u767c\u73fe\u4e26\u8655\u7406\u53ef\u4ee5\u6709\u6548\u907f\u514d\u5c0d\u61c9\u7528\u7a0b\u5e8f\u7684\u5f71\u97ff\u3002\u901a\u904e\u8a2d\u7f6e\u76e3\u63a7\u548c\u5831\u8b66\u7cfb\u7d71\uff0c\u60a8\u53ef\u4ee5\u5728\u9023\u63a5\u6578\u63a5\u8fd1\u4e0a\u9650\u6642\u53ca\u6642\u63a1\u53d6\u884c\u52d5\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u7528\u6236\u9ad4\u9a57\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u74b0\u5883\u4ee5\u652f\u6301 Redis\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis \u9023\u63a5\u6eff\u8f09\u5831\u8b66\u529f\u80fd\u53ef\u5373\u6642\u76e3\u63a7\u9023\u63a5\u6578\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\uff0c\u907f\u514d\u6027\u80fd\u4e0b\u964d\u8207\u670d\u52d9\u4e2d\u65b7\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-126147","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126147","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=126147"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126147\/revisions"}],"predecessor-version":[{"id":126148,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126147\/revisions\/126148"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=126147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=126147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=126147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}