{"id":1271,"date":"2022-11-06T14:05:44","date_gmt":"2022-11-06T06:05:44","guid":{"rendered":"https:\/\/www.myway5.com\/?p=1271"},"modified":"2022-11-06T14:06:12","modified_gmt":"2022-11-06T06:06:12","slug":"1271","status":"publish","type":"post","link":"https:\/\/www.myway5.com\/index.php\/2022\/11\/06\/1271\/","title":{"rendered":"\u901a\u8fc7 metrics-server \u83b7\u53d6\u7684 NodeMetrics \u4e3a\u4f55\u4f1a\u4e0d\u51c6\u786e"},"content":{"rendered":"<h2>\u80cc\u666f\u63cf\u8ff0<\/h2>\n<p>\u5728\u4f7f\u7528 metrics-server \u7684 NodeMetrics \u83b7\u53d6 node \u7684 CPU \u4f7f\u7528\u91cf\u65f6\uff0c\u4f1a\u7a0d\u5fae\u5927\u4e8e node \u7684 CPU \u6838\u5fc3\u6570\uff0c\u5bfc\u81f4\u8ba1\u7b97\u5269\u4f59\u53ef\u7528\u7684 CPU \u65f6\u51fa\u73b0\u4e86\u8d1f\u6570\u3002\u6b64\u65f6 node \u7684 cpu \u662f 100% \u6ee1\u8f7d\uff0c\u4f46\u662f\u7406\u8bba\u4e0a\u65e0\u8bba\u5982\u4f55\u4e5f\u4e0d\u4f1a\u8d85\u8fc7 CPU \u603b\u91cf\u3002<\/p>\n<h2>\u95ee\u9898\u5206\u6790<\/h2>\n<p>\u901a\u8fc7 metrics-server \u83b7\u53d6 NodeMetrics \u7684\u94fe\u8def\u5982\u4e0b\uff1ametrics-server \u2192 kubelet 10250 \u7aef\u53e3\u2192 cadvisor\u3002\u6240\u4ee5\u95ee\u9898\u7684\u672c\u8d28\u8fd8\u662f\u5728\u4e8e cadvisor \u5982\u4f55\u7edf\u8ba1 CPU \u4f7f\u7528\u91cf\u3002<\/p>\n<p>\u901a\u8fc7\u5206\u6790 cadvisor \u7684\u4ee3\u7801\u53ef\u4ee5\u77e5\u9053\uff0ccadvisor \u4f1a\u8bfb\u53d6 cgroup \u6839\u76ee\u5f55\u7684 <code>cpuacct.usage<\/code> \u4e2d\u7684\u503c\uff0c\u6765\u83b7\u53d6\u5f53\u524d\u7d2f\u79ef\u4f7f\u7528\u7684 CPU \u65f6\u95f4\u3002\u5982\u4e0b\u56fe\u4ee3\u7801\u6240\u793a\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/11\/cadvisor1.png\" alt=\"cadvisor1\" \/><\/p>\n<p><code>cpuacct.usage<\/code> \u7684\u63cf\u8ff0\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>reports the total CPU time (in nanoseconds) consumed by all tasks in this cgroup (including tasks lower in the hierarchy).<\/li>\n<\/ul>\n<p>cadvisor \u4f1a\u5b9a\u671f\uff08\u6bcf\u79d2\uff09\u5bf9 node \u8fdb\u884c\u91c7\u6837\uff0c\u4fdd\u5b58\u5230 CpuUsage \u4e2d\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/11\/cadvisor2.png\" alt=\"cadvisor2\" \/><\/p>\n<p>\u5f53 metrics-server \u9700\u8981\u83b7\u53d6\u5f53\u524d\u7684 CPU \u4f7f\u7528\u91cf\u65f6\uff0ccadvisor \u4f1a\u7edf\u8ba1\u6700\u8fd1 60s \u5185\uff08\u537360\u4e2a\u91c7\u6837\u6570\u636e\uff09\u7684\u7d2f\u79ef CPU \u4f7f\u7528\u65f6\u95f4\uff0c\u5e76\u9664\u4ee5\u603b\u91c7\u6837\u65f6\u95f4(ns)\uff0c\u5f97\u5230 CPU \u4f7f\u7528\u91cf\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/11\/cadvisor3.png\" alt=\"cadvisor3\" \/><\/p>\n<p>\u56e0\u4e3a CPU \u4f7f\u7528\u91cf\u7684\u65f6\u95f4\u5355\u4f4d\u662f\u7cbe\u786e\u5230\u7eb3\u79d2(ns)\u7684\uff0c\u56e0\u6b64\u96be\u514d\u5728\u8ba1\u7b97\u4e0a\u4f1a\u6709\u4e00\u5b9a\u7684\u8bef\u5dee\uff0c\u6240\u4ee5\u5f53 CPU \u6ee1\u8f7d\u65f6\u51fa\u73b0\u7edf\u8ba1\u51fa\u6765\u7684\u6570\u636e\u4f1a\u7a0d\u5927\u4e8e CPU \u6838\u5fc3\u6570\u4e5f\u662f\u6b63\u5e38\u60c5\u51b5\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u80cc\u666f\u63cf\u8ff0 \u5728\u4f7f\u7528 metrics-server \u7684 NodeMetrics \u83b7\u53d6 node \u7684 CPU \u4f7f\u7528\u91cf &hellip; <a href=\"https:\/\/www.myway5.com\/index.php\/2022\/11\/06\/1271\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u901a\u8fc7 metrics-server \u83b7\u53d6\u7684 NodeMetrics \u4e3a\u4f55\u4f1a\u4e0d\u51c6\u786e<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[89],"tags":[],"class_list":["post-1271","post","type-post","status-publish","format-standard","hentry","category-k8s"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - 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