{"id":5913,"date":"2022-05-12T16:27:06","date_gmt":"2022-05-12T08:27:06","guid":{"rendered":"http:\/\/123.57.164.21\/?p=5913"},"modified":"2022-05-12T16:27:49","modified_gmt":"2022-05-12T08:27:49","slug":"kubernetes%e4%b8%ad-requests-%e5%92%8c-limits-%e7%9a%84%e5%88%9d%e6%ad%a5%e7%90%86%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=5913","title":{"rendered":"Kubernetes\u4e2d Requests \u548c Limits \u7684\u521d\u6b65\u7406\u89e3"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-107-1024x414.png\" alt=\"\" class=\"wp-image-5914\" width=\"639\" height=\"258\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-107-1024x414.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-107-300x121.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-107-768x311.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-107-830x336.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-107-230x93.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-107-350x142.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-107-480x194.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-107.png 1434w\" sizes=\"(max-width: 639px) 100vw, 639px\" \/><\/figure><\/div>\n\n\n\n<p><strong>1 \u7075\u9b42\u62f7\u95ee<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u6211\u4eec\u5728\u4f7f\u7528 Kubernetes \u65f6\u662f\u5426\u9047\u5230\u4ee5\u4e0b\u60c5\u51b5\uff1a<\/p>\n\n\n\n<ul><li>\u4f60\u4f1a\u4e0d\u4f1a\u90e8\u7f72\u8d1f\u8f7d\u7684\u65f6\u5019\u5c06 CPU requests\/limits \u8bbe\u7f6e\u5f97\u8fc7\u4f4e\u6216\u8fc7\u9ad8\uff1f<\/li><li>\u4f60\u4f1a\u4e0d\u4f1a\u90e8\u7f72\u8d1f\u8f7d\u7684\u65f6\u5019\u5c06 \u5185\u5b58 requests\/limits \u8bbe\u7f6e\u5f97\u8fc7\u4f4e\u6216\u8fc7\u9ad8\uff1f<\/li><li>\u53c8\u6216\u8005\u4f60\u6839\u672c\u4e0d\u8bbe\u7f6e requests\/limits\uff1f<\/li><li>request\u8868\u793a\u4ec0\u4e48\u610f\u601d\uff1flimits \u53c8\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/li><li>CPU \u8bbe\u7f6e0.5\u8868\u793a\u5565\u610f\u601d\uff1f\u4e3a\u5565\u53c8\u6709\u4eba\u5199 500m\uff0c\u8fd9\u53c8\u662f\u4ec0\u4e48\u60c5\u51b5\uff1f<\/li><li>\u6700\u4f73\u5b9e\u8df5\u53c8\u662f\u4ec0\u4e48\uff1f<\/li><li>\u7ecf\u5e38\u5728 <a rel=\"noreferrer noopener\" href=\"https:\/\/so.csdn.net\/so\/search?q=Kubernetes&amp;spm=1001.2101.3001.7020\" target=\"_blank\">Kubernetes<\/a> \u96c6\u7fa4\u79cd\u90e8\u7f72\u8d1f\u8f7d\u7684\u65f6\u5019\u4e0d\u8bbe\u7f6e CPU <code>requests<\/code> \u6216\u5c06 CPU <code>requests<\/code> \u8bbe\u7f6e\u5f97\u8fc7\u4f4e\uff08\u8fd9\u6837\u201c\u770b\u4e0a\u53bb\u201d\u5c31\u53ef\u4ee5\u5728\u6bcf\u4e2a\u8282\u70b9\u4e0a\u5bb9\u7eb3\u66f4\u591a Pod \uff09\u3002\u5728\u4e1a\u52a1\u6bd4\u8f83\u7e41\u5fd9\u7684\u65f6\u5019\uff0c\u8282\u70b9\u7684 CPU \u5168\u8d1f\u8377\u8fd0\u884c\u3002\u4e1a\u52a1\u5ef6\u8fdf\u660e\u663e\u589e\u52a0\uff0c\u6709\u65f6\u751a\u81f3\u673a\u5668\u4f1a\u83ab\u540d\u5176\u5999\u5730\u8fdb\u5165 CPU \u8f6f<a rel=\"noreferrer noopener\" href=\"https:\/\/so.csdn.net\/so\/search?q=%E6%AD%BB%E9%94%81&amp;spm=1001.2101.3001.7020\" target=\"_blank\">\u6b7b\u9501<\/a>\u7b49\u201c\u5047\u6b7b\u201d\u72b6\u6001\u3002<\/li><li>\u7c7b\u4f3c\u5730\uff0c\u90e8\u7f72\u8d1f\u8f7d\u7684\u65f6\u5019\uff0c\u4e0d\u8bbe\u7f6e<a rel=\"noreferrer noopener\" href=\"https:\/\/so.csdn.net\/so\/search?q=%E5%86%85%E5%AD%98&amp;spm=1001.2101.3001.7020\" target=\"_blank\">\u5185\u5b58<\/a> <code>requests<\/code> \u6216\u8005\u5185\u5b58 <code>requests<\/code> \u8bbe\u7f6e\u5f97\u8fc7\u4f4e\uff0c\u8fd9\u65f6\u4f1a\u53d1\u73b0\u6709\u4e9b Pod \u4f1a\u4e0d\u65ad\u5730\u5931\u8d25\u91cd\u542f\u3002\u800c\u4e0d\u65ad\u91cd\u542f\u7684\u8fd9\u4e9b Pod \u901a\u5e38\u8dd1\u7684\u662f Java \u4e1a\u52a1\u5e94\u7528\u3002\u4f46\u662f\u8fd9\u4e9b Java \u5e94\u7528\u672c\u5730\u8c03\u8bd5\u8fd0\u884c\u5730\u65f6\u5019\u660e\u660e\u90fd\u662f\u6b63\u5e38\u7684\u3002<\/li><li>\u5728 Kubernetes \u96c6\u7fa4\u4e2d\uff0c\u96c6\u7fa4\u8d1f\u8f7d\u5e76\u4e0d\u662f\u5b8c\u5168\u5747\u5300\u5730\u5728\u8282\u70b9\u95f4\u5206\u914d\u7684\uff0c\u901a\u5e38\u5185\u5b58\u4e0d\u5747\u5300\u5206\u914d\u7684\u60c5\u51b5\u8f83\u4e3a\u7a81\u51fa\uff0c\u96c6\u7fa4\u4e2d\u67d0\u4e9b\u8282\u70b9\u7684\u5185\u5b58\u4f7f\u7528\u7387\u660e\u663e\u9ad8\u4e8e\u5176\u4ed6\u8282\u70b9\u3002<\/li><li>Kubernetes \u4f5c\u4e3a\u4e00\u4e2a\u4f17\u6240\u5468\u77e5\u7684\u4e91\u539f\u751f\u5206\u5e03\u5f0f\u5bb9\u5668\u7f16\u6392\u7cfb\u7edf\uff0c\u4e00\u4e2a\u6240\u8c13\u7684\u4e8b\u5b9e\u4e0a\u6807\u51c6\uff0c\u5176\u8c03\u5ea6\u5668\u4e0d\u662f\u5e94\u8be5\u4fdd\u8bc1\u8d44\u6e90\u7684\u5747\u5300\u5206\u914d\u5417\uff1f<\/li><\/ul>\n\n\n\n<p>\u8bf8\u5982\u6b64\u7c7b\u95ee\u9898\u4f60\u662f\u4e0d\u662f\u5df2\u7ecf\u6655\u4e86\u5462\uff1f\u90a3\u4e48\u6211\u4eec\u4e00\u8d77\u901a\u8fc7\u672c\u7bc7\u6587\u7ae0\u5b66\u4e60 Kubernetes \u7684\u8d44\u6e90\u7ba1\u7406\u548c\u6a21\u578b\uff0c\u7b49\u672c\u7bc7\u6587\u7ae0\u7ed3\u675f\u65f6\uff0c\u76f8\u4fe1\u4f60\u4e00\u5b9a\u53ef\u4ee5\u5f88\u8f7b\u6613\u7684\u56de\u7b54\u4ee5\u4e0a\u95ee\u9898\u3002<\/p>\n\n\n\n<p><strong>2 \u4ec0\u4e48\u662f requests \u548c limits\uff1f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u6211\u4eec\u90fd\u77e5\u9053 Kubernetes \u4e2d\u6700\u5c0f\u7684\u539f\u5b50\u8c03\u5ea6\u5355\u4f4d\u662fPod\uff0c\u90a3\u4e48\u5c31\u610f\u5473\u7740\u8d44\u6e90\u7ba1\u7406\u548c\u8d44\u6e90\u8c03\u5ea6\u76f8\u5173\u7684\u5c5e\u6027\u90fd\u5e94\u8be5Pod\u5bf9\u8c61\u7684\u5b57\u6bb5\uff0c\u5176\u4e2d\u6211\u4eec\u6700\u5e38\u89c1\u7684\u5c31\u662f Pod \u7684 CPU \u548c\u5185\u5b58\u914d\u7f6e\uff0c\u800c\u4e3a\u4e86\u5b9e\u73b0 Kubernetes \u96c6\u7fa4\u4e2d\u8d44\u6e90\u7684\u6709\u6548\u8c03\u5ea6\u548c\u5145\u5206\u5229\u7528\uff0cKubernetes\u91c7\u7528 requests \u548c limits \u4e24\u79cd\u9650\u5236\u7c7b\u578b\u6765\u5bf9CPU\u548c\u5185\u5b58\u8d44\u6e90\u8fdb\u884c\u5bb9\u5668\u7c92\u5ea6\u7684\u5206\u914d\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">resources:  \n    requests:    \n        cpu: \"1\"\n        memory: \"500Mi\"\n   limits:    \n        cpu: \"100m\"\n        memory: \"1000Mi\"\n<\/pre>\n\n\n\n<p>\u4e0b\u9762\u6211\u4eec\u9996\u5148\u6765\u4e86\u89e3\u4e00\u4e0b\u4e0a\u9762\u8fd9\u6bb5 yaml \u6587\u4ef6\u4e2d\u5b57\u6bb5\u7684\u542b\u4e49\uff1arequests \u548c limits\uff1a<\/p>\n\n\n\n<ul><li>requests \u5b9a\u4e49\u4e86\u5bf9\u5e94\u7684\u5bb9\u5668\u6240\u9700\u8981\u7684\u6700\u5c0f\u8d44\u6e90\u91cf\u3002<\/li><li>limits \u5b9a\u4e49\u4e86\u5bf9\u5e94\u5bb9\u5668\u6700\u5927\u53ef\u4ee5\u6d88\u8017\u7684\u8d44\u6e90\u4e0a\u9650\u3002<\/li><li>cpu \u7b49\u4e8e1\u4e00\u822c\u7b49\u540c\u4e8e1CPU \u6838\u5fc3\uff0c1\u4e2aVCPU\u6216\u8005\u4e00\u4e2a\u8d85\u7ebf\u7a0b\uff0c\u5177\u4f53\u8981\u770b\u670d\u52a1\u5668\u7684CPU\u3002\u800c limits \u8fd9\u91cc\u8bbe\u7f6e\u7684 100m \u5219\u53eb\u505a100\u6beb\u6838\uff0c100m\u5c31\u8868\u793a0.1\u4e2a\u6838,\u6240\u4ee5\u8fd9\u91cc\u4e5f\u53ef\u4ee5\u75280.1\u4ee3\u66ff\u3002<\/li><li>memory \u7b49\u4e8e500Mi\uff0c\uff08\u5907\u6ce8\uff1a1Mi=1024<em>1024\uff1b1M=1000<\/em>1000\uff09<\/li><\/ul>\n\n\n\n<p>\u63a5\u4e0b\u6765\u6211\u4eec\u6765\u521d\u6b65\u7406\u89e3 requests \u548c limits \u8fd9\u4e24\u4e2a\u8d44\u6e90\u9650\u5236\u7c7b\u578b\uff0c\u5728 Kubernetes \u5bf9 CPU \u548c\u5185\u5b58\u8d44\u6e90\u9650\u989d\u7684\u8bbe\u8ba1\uff0c\u901a\u5e38\u662f\u6307\u7528\u6237\u5728\u63d0\u4ea4 Pod \u65f6\uff0c\u53ef\u4ee5\u58f0\u660e\u4e00\u4e2a\u76f8\u5bf9\u8f83\u5c0f\u7684 requests \u503c\u4f9b\u8c03\u5ea6\u5668\u4f7f\u7528\uff0c\u800c Kubernetes \u771f\u6b63\u8bbe\u7f6e\u7ed9\u5bb9\u5668 Cgroups \u7684\uff0c\u5219\u662f\u76f8\u5bf9\u8f83\u5927\u7684 limits \u503c\u3002\u6240\u4ee5\u4e00\u822c\u6765\u8bf4\uff0c\u5728\u8c03\u5ea6\u7684\u65f6\u5019 requests \u6bd4\u8f83\u91cd\u8981\uff0c\u5728\u8fd0\u884c\u65f6 limits \u6bd4\u8f83\u91cd\u8981\u3002<\/p>\n\n\n\n<p>\u800c\u5bf9\u5e94\u5b9e\u9645\u7684\u4e1a\u52a1\u573a\u666f\u6765\u8bf4\uff0c\u4ee5 java \u5e94\u7528\u4e3a\u4f8b\uff0crequests \u5bf9\u5e94\u7684\u5c31\u662fJVM\u865a\u62df\u673a\u6240\u9700\u8d44\u6e90\u7684\u6700\u5c0f\u503c\uff0c\u800c limits \u5bf9\u5e94\u7684\u5c31\u662f JVM \u865a\u62df\u673a\u6240\u80fd\u591f\u4f7f\u7528\u7684\u8d44\u6e90\u6700\u5927\u503c\u3002\u4ee5\u5185\u5b58\u8d44\u6e90\u4e3a\u4f8b\u4e00\u822c\u5c31\u662f\u6307\uff1aXms \u548c Xmx\uff0c\u5982\u679c requests \u503c\u8bbe\u7f6e\u7684\u5c0f\u4e8eJVM\u865a\u62df\u673a Xms \u7684\u503c\uff0c\u90a3\u4e48\u5c31\u4f1a\u5bfc\u81f4 Pod \u5185\u5b58\u6ea2\u51fa\uff0c\u4ece\u800c\u5bfc\u81f4 Pod \u88ab\u6740\u6389\uff0c\u800c\u540e\u91cd\u65b0\u521b\u5efa\u4e00\u4e2aPod\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\u5982\u679c CPU \u8d44\u6e90\u4f7f\u7528\u8d85\u8fc7\u4e86 limits\uff0cPod\u4f1a\u4e0d\u4f1a\u88ab\u6740\u6389\u5462\uff1f\u7b54\u6848\u662f\u4e0d\u4f1a\uff0c\u4f46\u662f\u88ab\u9650\u5236\u3002\u5982\u679c\u6ca1\u6709\u8bbe\u7f6e limits \uff0cPod \u53ef\u4ee5\u4f7f\u7528\u5168\u90e8\u7a7a\u95f2\u7684\u8d44\u6e90\u3002\u53e6\u5916\u5982\u679c\u8bbe\u7f6e\u4e86 limits\u800c\u6ca1\u6709\u8bbe\u7f6e requests \u65f6\uff0cKubernetes \u9ed8\u8ba4\u4f1a\u5c06 requests \u7b49\u4e8e limits\u3002<\/p>\n\n\n\n<p>\u8fd9\u91cc\u901a\u5e38\u8fd8\u4f1a\u5c06 requests \u548c limits \u63cf\u8ff0\u7684\u8d44\u6e90\u5206\u4e3a\u4e24\u7c7b\uff1a\u53ef\u538b\u7f29\u8d44\u6e90\uff08compressible resources\uff09 \u548c\u4e0d\u53ef\u538b\u7f29\u8d44\u6e90\uff08incompressible resources\uff09\u3002\u8fd9\u91cc\u4e0d\u96be\u770b\u51faCPU\u8fd9\u7c7b\u578b\u8d44\u6e90\u4e3a\u53ef\u538b\u7f29\u8d44\u6e90\uff0c\u800c\u5185\u5b58\u8fd9\u7c7b\u578b\u8d44\u6e90\u4e3a\u4e0d\u53ef\u538b\u7f29\u8d44\u6e90\u3002\u6240\u4ee5\u5408\u7406\u8bbe\u7f6e\u4e0d\u53ef\u538b\u7f29\u8d44\u6e90\u7684limits\u503c\u5c31\u76f8\u5f53\u91cd\u8981\u4e86\u3002<\/p>\n\n\n\n<p><strong>3 \u7406\u89e3 Kubernetes \u4e2d Pod \u7684 Qos<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u5f53\u6211\u4eec\u7406\u89e3 requests \u548c limits\u4e86\u4e4b\u540e\uff0c\u6211\u4eec\u6765\u60f3\u4e00\u4e2a\u95ee\u9898\uff1a\u5f53\u67d0\u4e2a Node \u4e0a\u7684\u5185\u5b58\u8fd8\u5269\u4e0b 90Mi\uff0c\u8fd9\u4e2a\u65f6\u5019\u5c31\u89e6\u53d1\u4e86 Kubernetes \u7684 Eviction\uff0c\u8fd9\u4e2a\u65f6\u5019 kubelet \u5c31\u4f1a\u6311\u9009 Pod \u8fdb\u884c\u5220\u9664\u64cd\u4f5c\uff0c\u90a3\u4e48\u8fd9\u4e2a\u65f6\u5019 kubelet \u6311\u9009\u7684\u4f9d\u636e\u662f\u4ec0\u4e48\u5462\uff1f<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\u5f53 Kubernetes \u6240\u7ba1\u7406\u7684\u5bbf\u4e3b\u673a\u4e0a\u4e0d\u53ef\u538b\u7f29\u8d44\u6e90\u77ed\u7f3a\u65f6\uff0c\u5c31\u6709\u53ef\u80fd\u89e6\u53d1 Eviction\u3002\nEviction \u7684\u9ed8\u8ba4\u9608\u503c\u5982\u4e0b\uff1a\nmemory.available&lt;100Mi\nnodefs.available&lt;10%\nnodefs.inodesFree&lt;5%\nimagefs.available&lt;15%\n<\/pre>\n\n\n\n<p>\u7b54\u6848\u5c31\u662f\u4f9d\u636erequests\u548climits\u503c\u7684\u8bbe\u7f6e\u65b9\u5f0f\u6765\u51b3\u5b9a\uff0cKubernetes\u4f1a\u5c06Pod\u5212\u5206\u62103\u79cd\u4e0d\u540c\u7684Qos\u7ea7\u522b\u91cc\u9762\u53bb\uff0c\u6839\u636ePod\u4e0d\u540c\u7684Qos\u7ea7\u522b\u6765\u6311\u9009\u3002<\/p>\n\n\n\n<ul><li>\u9996\u5f53\u5176\u51b2\u7684\u5c31\u662f\u5220\u9664BestEffort\u7ea7\u522b\u7684Pod\uff0c\u8fd9\u4e2a\u7ea7\u522b\u7684Pod\u5b8c\u5168\u6ca1\u6709\u505a\u4efb\u4f55\u8d44\u6e90\u9650\u5236\uff0c\u5373\u5b8c\u5168\u6ca1\u6709\u8bbe\u7f6eCPU\/\u5185\u5b58\u7684requests\u548climits\u3002<\/li><li>\u5176\u6b21\u662fBurstable\u7ea7\u522b\u7684Pod\uff0c\u8fd9\u4e2a\u7ea7\u522b\u7684Pod\u81f3\u5c11\u8bbe\u7f6e\u4e861\u4e2aCPU\u6216\u8005\u5185\u5b58\u7684requests\uff0c\u4f46\u53c8\u4e0d\u6ee1\u8db3\u6700\u9ad8\u7ea7\u522b\u7684Qos\u6761\u4ef6\u3002<\/li><li>\u6700\u540e\u624d\u662f Guaranteed \u7ea7\u522b\u7684Pod\uff0c\u5373Pod\u540c\u65f6\u8bbe\u7f6e\u4e86CPU\u3001\u5185\u5b58\u7684requests\u548climits\uff0c\u5e76\u4e14requests\u503c\u7b49\u4e8elimits\u7684\u503c\u3002\u5e76\u4e14\uff0cKubernetes \u4f1a\u4fdd\u8bc1\u53ea\u6709\u5f53 Guaranteed \u7ea7\u522b\u7684 Pod \u7684\u8d44\u6e90\u4f7f\u7528\u91cf\u8d85\u8fc7\u4e86\u5176 limits \u7684\u9650\u5236\uff0c\u6216\u8005\u5bbf\u4e3b\u673a\u672c\u8eab\u6b63\u5904\u4e8e Memory Pressure \u72b6\u6001\uff08\u5f53\u5bbf\u4e3b\u673a\u7684 Eviction \u9608\u503c\u8fbe\u5230\u540e\uff0c\u5c31\u4f1a\u8fdb\u5165\u8be5\u72b6\u6001\uff09\u65f6\uff0cGuaranteed \u7ea7\u522b\u7684 Pod \u624d\u53ef\u80fd\u88ab\u9009\u4e2d\u8fdb\u884c Eviction \u64cd\u4f5c\u3002<\/li><\/ul>\n\n\n\n<p>\u53ef\u4ee5\u770b\u4e0b\u9762\u7684\u8868\u683c\uff0c\u4ee5\u66f4\u597d\u7684\u7406\u89e3\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-108-1024x378.png\" alt=\"\" class=\"wp-image-5917\" width=\"538\" height=\"199\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-108-1024x378.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-108-300x111.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-108-768x284.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-108-830x307.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-108-230x85.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-108-350x129.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-108-480x177.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/05\/\u56fe\u7247-108.png 1396w\" sizes=\"(max-width: 538px) 100vw, 538px\" \/><\/figure><\/div>\n\n\n\n<p><strong>4 \u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>\u4e3a namespace \u8bbe\u7f6e\u8d44\u6e90\u914d\u989d<\/strong><\/p>\n\n\n\n<ul><li>ResourceQuotas \u9650\u5236\u4e3b\u8981\u662f\u6307\u8be5 namespace \u4e0b\u9762\u7684\u6240\u6709 Pod \u6307\u5b9a\u4e00\u4e2a requests\u548climits\u7684\u603b\u548c\u8981\u5c0f\u4e8e\u8bbe\u7f6e\u7684 requests \u548c limits\u3002<\/li><li>\u8be5 namespace \u4e0b\u6bcf\u4e00\u4e2a\u5bb9\u5668\u5fc5\u987b\u6307\u5b9a requests \u6216 limits\uff0c\u5426\u5219\u5c06\u4e0d\u5141\u8bb8\u521b\u5efa\u3002<\/li><\/ul>\n\n\n\n<p>\u8fd9\u6837\u5b50\u505a\u7684\u597d\u5904\u5c31\u662f\u5b9e\u73b0\u4e86\u4e00\u6761\u9690\u542b\u7684\u89c4\u5219\uff0c\u6bcf\u4e2a\u4eba\u90fd\u8981\u9075\u5b88\u3002<\/p>\n\n\n\n<p><strong>\u8bbe\u7f6e\u9ed8\u8ba4\u7684 requests \u548c limits<\/strong><\/p>\n\n\n\n<p>\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u5f88\u591a\u8d1f\u8f7d CPU \u548c\u5185\u5b58\u7684\u6240\u9700\u7684\u8d44\u6e90\u57fa\u672c\u76f8\u540c\uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u597d\u9ed8\u8ba4\u7684 requests \u548c limits\uff0c\u5f53\u7528\u6237\u6ca1\u6709\u6307\u5b9a requests \u548c limits \u503c\uff0c\u76f4\u63a5\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002<\/p>\n\n\n\n<p><strong>\u914d\u7f6e\u542f\u7528CPUSET<\/strong><\/p>\n\n\n\n<p>\u6211\u4eec\u77e5\u9053\uff0c\u5728\u4f7f\u7528\u5bb9\u5668\u7684\u65f6\u5019\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e cpuset \u628a\u5bb9\u5668\u7ed1\u5b9a\u5230\u67d0\u4e2a CPU \u7684\u6838\u4e0a\uff0c\u800c\u4e0d\u662f\u50cf cpushare \u90a3\u6837\u5171\u4eab CPU \u7684\u8ba1\u7b97\u80fd\u529b\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u7531\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u5728 CPU \u4e4b\u95f4\u8fdb\u884c\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u6b21\u6570\u5927\u5927\u51cf\u5c11\uff0c\u5bb9\u5668\u91cc\u5e94\u7528\u7684\u6027\u80fd\u4f1a\u5f97\u5230\u5927\u5e45\u63d0\u5347\u3002\u4e8b\u5b9e\u4e0a\uff0ccpuset \u65b9\u5f0f\uff0c\u662f\u751f\u4ea7\u73af\u5883\u91cc\u90e8\u7f72\u5728\u7ebf\u5e94\u7528\u7c7b\u578b\u7684 Pod \u65f6\uff0c\u975e\u5e38\u5e38\u7528\u7684\u4e00\u79cd\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\u5982\u4f55\u542f\u7528 cpuset \u5462\uff1f\u53ea\u9700\u8981\u9075\u5faa\u4ee5\u4e0b2\u6761\u89c4\u5219\u6765\u8bbe\u7f6e requests \u548c limits \u5373\u53ef\uff1a<\/p>\n\n\n\n<ul><li>\u8bbe\u7f6e CPU \u7684 requests \u548c limits \u7684\u503c\u76f8\u7b49\u4e14\u4e3a\u6574\u6570\u503c\u3002<\/li><li>\u8bbe\u7f6e Pod \u7684 CPU \u548c\u5185\u5b58\u7684 requests \u548c limits \u503c\u76f8\u7b49\uff0c\u4e5f\u5c31\u662f\u8be5 Pod \u662f\u4e00\u4e2aGuaranteed \u7ea7\u522b\u7684 Pod\u3002<\/li><\/ul>\n\n\n\n<p><strong>\u9ad8\u8d1f\u8f7dPod requests \u548c limits \u7684\u8bbe\u7f6e<\/strong><\/p>\n\n\n\n<p>\u800c\u5bf9\u4e8e\u8d1f\u8f7d\uff0c\u6d41\u91cf\u6bd4\u8f83\u9ad8\u7684 Pod\uff0crequests \u548c limits \u7684\u8bbe\u7f6e\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u60c5\u51b5\u5206\u6790\uff0c\u9700\u8981\u5206\u6790\u4e1a\u52a1\u7684\u591a\u4e2a\u7ef4\u5ea6\u3002\u4f8b\u5982<\/p>\n\n\n\n<ul><li>\u8be5\u670d\u52a1\u7684\u5bb9\u5668\u662f CPU \u5bc6\u96c6\u578b\uff0c\u8fd8\u662f\u5403\u5185\u5b58\u578b\uff0c\u4ea6\u6216\u8005\u662f IO \u5bc6\u96c6\u578b\u3002<\/li><li>\u8be5\u670d\u52a1\u662f\u4e2a\u5355\u70b9\uff0c\u8fd8\u662f\u9ad8\u53ef\u7528\u7684\u3002<\/li><li>\u8fd9\u4e2a\u670d\u52a1\u7684\u4e0a\u4e0b\u6e38\u90fd\u662f\u8c01\uff1f<\/li><li>\u8fd9\u4e2a\u670d\u52a1\u7684\u5386\u53f2\u76d1\u63a7\u6570\u636e\u662f\u600e\u4e48\u6837\u7684\uff1f<\/li><\/ul>\n\n\n\n<p>\u8bf4\u4e86\u8fd9\u4e48\u591a\uff0c\u8c8c\u4f3c\u8fd8\u662f\u4e0d\u77e5\u9053\u600e\u4e48\u8bbe\u7f6e\u3002\u8fd9\u5c31\u7ed9\u5927\u5bb6\u4e00\u4e2a\u201c\u6807\u51c6\u7b54\u6848\u201d\uff1a\u3001<\/p>\n\n\n\n<ul><li>\u6839\u636e\u5386\u53f2\u7684 CPU\uff0c\u5185\u5b58\uff0c\u7f51\u7edc\uff0c\u5b58\u50a8\u7b49\u76d1\u63a7\u6570\u636e\uff0c\u4e00\u822c requests \u503c\u53ef\u4ee5\u8bbe\u5b9a\u4e3a\u5386\u53f2\u6570\u636e\u5747\u503c\u3002<\/li><\/ul>\n\n\n\n<ul><li>limits \u5219\u8bbe\u7f6e\u4e3a\u5386\u53f2\u6570\u636e\u5747\u503c\u518d\u589e\u52a0 30%-50%\uff0c\u5f53\u7136\u5b9e\u9645\u8bbe\u7f6e\u8fd8\u662f\u8981\u6839\u636e\u60c5\u51b5\u505a\u4e9b\u5fae\u8c03\u3002<\/li><\/ul>\n\n\n\n<p><strong>5 \u603b\u7ed3<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u672c\u6587\u4e3b\u8981\u4e3a\u5927\u5bb6\u4ecb\u7ecd\u4e86 Kubernetes \u4e2d requests \u548c limits \u4e24\u79cd\u8d44\u6e90\u9650\u5236\u7c7b\u578b\u6765\u5bf9\u8d44\u6e90\u8fdb\u884c\u5bb9\u5668\u7c92\u5ea6\u7684\u5206\u914d\uff0c\u4ece\u800c\u5b9e\u73b0 Kubernetes \u96c6\u7fa4\u4e2d\u8d44\u6e90\u7684\u6709\u6548\u8c03\u5ea6\u548c\u5145\u5206\u5229\u7528\uff0c\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u6211\u7684\u4e00\u4e9b\u5b9e\u8df5\u3002\u6b22\u8fce\u5927\u5bb6\u7559\u8a00\u4ea4\u6d41\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1 \u7075\u9b42\u62f7\u95ee \u6211\u4eec\u5728\u4f7f\u7528 Kubernetes \u65f6\u662f\u5426\u9047\u5230\u4ee5\u4e0b\u60c5\u51b5\uff1a \u4f60\u4f1a\u4e0d\u4f1a\u90e8\u7f72\u8d1f\u8f7d\u7684\u65f6\u5019\u5c06 CPU req [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5913"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5913"}],"version-history":[{"count":5,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5913\/revisions"}],"predecessor-version":[{"id":5920,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5913\/revisions\/5920"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}