{"id":10020542,"date":"2024-12-23T20:14:59","date_gmt":"2024-12-23T12:14:59","guid":{"rendered":"https:\/\/itmax.cn\/?p=10020542"},"modified":"2024-12-23T20:14:59","modified_gmt":"2024-12-23T12:14:59","slug":"kubernetes-apf%ef%bc%88api-%e4%bc%98%e5%85%88%e7%ba%a7%e5%92%8c%e5%85%ac%e5%b9%b3%e8%b0%83%e5%ba%a6%ef%bc%89%e7%ae%80%e4%bb%8b","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10020542","title":{"rendered":"Kubernetes APF\uff08API \u4f18\u5148\u7ea7\u548c\u516c\u5e73\u8c03\u5ea6\uff09\u7b80\u4ecb"},"content":{"rendered":"<p>\u5728 Kubernetes \u96c6\u7fa4\u4e2d\uff0c<code>kube-apiserver<\/code> \u662f\u4e00\u4e2a\u81f3\u5173\u91cd\u8981\u7684\u7ec4\u4ef6\uff0c\u5b83\u4e0d\u4ec5\u8981\u5bf9\u5916\u54cd\u5e94\u5ba2\u6237\u7aef\u7684 HTTPS \u8bf7\u6c42\uff0c\u8fd8\u8981\u5bf9\u5185\u4e0e <code>controller-manager<\/code>\u3001<code>scheduler<\/code>\u3001<code>kubelet<\/code> \u2026\u2026 \u7b49\u7b49\u5176\u5b83\u7ec4\u4ef6\u4ea4\u4e92\u3002<\/p>\n<p>\u4e3a\u4e86\u4fdd\u969c <code>kube-apiserver<\/code> \u7684\u7a33\u5b9a\u6027\uff0c\u5176\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u914d\u7f6e\u7528\u4e8e\u9650\u6d41\uff1a<\/p>\n<ul>\n<li><code>--max-requests-inflight<\/code>\uff1a\u67e5\u8be2\u7c7b\u8bf7\u6c42\u7684\u6700\u5927\u5e76\u53d1\u6570\uff0c\u9ed8\u8ba4 400\u3002<\/li>\n<li><code>--max-mutating-requests-inflight<\/code>\uff1a\u53d8\u66f4\u7c7b\u8bf7\u6c42\u7684\u6700\u5927\u5e76\u53d1\u6570\uff0c\u9ed8\u8ba4 200\u3002<\/li>\n<\/ul>\n<p>\u867d\u7136\u4e0a\u8ff0\u4e24\u9879\u914d\u7f6e\u4fdd\u969c\u4e86\u603b\u4f53\u7684\u5e76\u53d1\u9650\u5236\uff0c\u4f46\u7f3a\u4e4f\u5bf9\u8bf7\u6c42\u7684\u4f18\u5148\u7ea7\u5212\u5206\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u96c6\u7fa4\u7ba1\u7406\u5458\u53ef\u80fd\u5931\u53bb\u5bf9 <code>kube-apiserver<\/code> \u7684\u638c\u63a7\uff0c\u6bd4\u5982\u67d0\u4e9b\u5931\u63a7\u7684\u5e94\u7528\u9891\u7e41\u8bf7\u6c42 <code>kube-apiserver<\/code> \u5bfc\u81f4\u5176\u8fc7\u8f7d\u800c\u65e0\u6cd5\u6b63\u5e38\u54cd\u5e94\u5176\u5b83\u8bf7\u6c42\uff082024 \u5e74 12 \u6708 11 \u53f7 OpenAI \u7684 kubernetes \u96c6\u7fa4\u6545\u969c\u5c31\u662f\u8fd9\u79cd\u60c5\u51b5\uff09\u3002<\/p>\n<p>\u800c <code>APF<\/code>\uff08API Priority and Fairness\uff09\u673a\u5236\u5219\u53ef\u4ee5\u907f\u514d\u8fd9\u79cd\u95ee\u9898\u3002<\/p>\n<h2>APF<\/h2>\n<p><code>APF<\/code>\uff08API \u4f18\u5148\u7ea7\u548c\u516c\u5e73\u8c03\u5ea6\uff09\u673a\u5236\u5f15\u5165\u4e86\u4ee5\u4e0b\u4e24\u4e2a\u65b0\u7684\u5bf9\u8c61\uff1a<\/p>\n<ul>\n<li><code>FlowSchema<\/code>\uff1a\u7528\u4e8e\u5bf9\u8bf7\u6c42\u8fdb\u884c\u5206\u7c7b\uff0c\u5173\u8054\u4e00\u4e2a <code>PriorityLevelConfiguration<\/code> \u4f18\u5148\u7ea7\u3002<\/li>\n<li><code>PriorityLevelConfiguration<\/code>\uff1a\u5b9a\u4e49\u5177\u4f53\u7684\u4f18\u5148\u7ea7\u3001\u8be5\u7ea7\u522b\u7684\u5e76\u53d1\u6570\u3001\u961f\u5217\u884c\u4e3a\u3002<\/li>\n<\/ul>\n<p>\u8bf7\u6c42\u901a\u8fc7 <code>APF<\/code> \u7684\u5904\u7406\u6d41\u7a0b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000045671403\" alt=\"\" title=\"\"><\/p>\n<p>\u8bf7\u6c42\u9996\u5148\u5339\u914d\u4e00\u4e2a <code>FlowSchema<\/code>\uff0c\u7136\u540e\u88ab\u5206\u6d41\u5230\u5173\u8054\u7684 <code>PriorityLevelConfiguration<\/code>\uff0c\u8fdb\u5165\u8be5\u4f18\u5148\u7ea7\u914d\u7f6e\u7684\u961f\u5217\u4e2d\uff0c\u6700\u540e\u88ab\u4ece\u961f\u5217\u4e2d\u53d6\u51fa\u5904\u7406\u3002<\/p>\n<p><code>FlowSchema<\/code> \u548c <code>PriorityLevelConfiguration<\/code> \u7684\u914d\u7f6e\u793a\u4f8b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000045671404\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><code>FlowSchema<\/code> \u7684 <code>.spec<\/code> \u914d\u7f6e\u6709\u56db\u4e2a\u90e8\u5206\uff1a<\/p>\n<ul>\n<li><code>distinguisherMethod<\/code>\uff1a\u53ef\u4ee5\u8bbe\u7f6e type \u4e3a ByUser \u6216\u8005 ByNamespace \u5c06\u8bf7\u6c42\u8fdb\u4e00\u6b65\u5206\u6d41\uff0c\u4e5f\u53ef\u4ee5\u4e0d\u8bbe\u7f6e\u6b64\u914d\u7f6e\u3002<\/li>\n<li><code>matchingPrecedence<\/code>\uff1a\u8bbe\u7f6e\u5339\u914d\u7684\u987a\u5e8f\uff0c\u6bcf\u4e2a\u8bf7\u6c42\u90fd\u5148\u4ece <code>matchingPrecedence<\/code> \u6570\u503c\u6700\u4f4e\u7684 <code>FlowSchema<\/code> \u5f00\u59cb\u5339\u914d\uff0c\u5efa\u8bae\u786e\u4fdd\u6bcf\u4e2a <code>FlowSchema<\/code> \u7684 <code>matchingPrecedence<\/code> \u4e0d\u76f8\u540c\u3002<\/li>\n<li><code>priorityLevelConfiguration<\/code>\uff1a\u5173\u8054\u7684\u4f18\u5148\u7ea7\uff0c\u6bcf\u4e2a <code>FlowSchema<\/code> \u53ea\u80fd\u5173\u8054\u4e00\u4e2a\u4f18\u5148\u7ea7\u8bbe\u7f6e\u3002<\/li>\n<li><code>rules<\/code>\uff1a\u5339\u914d\u7684\u89c4\u5219\uff0c\u5982\u679c\u67d0\u4e2a\u8bf7\u6c42\u5339\u914d\u5176\u4e2d\u4e00\u6761\u89c4\u5219\uff0c\u5219\u8be5\u8bf7\u6c42\u4f1a\u88ab\u8fd9\u4e2a <code>FlowSchema<\/code> \u5206\u6d41\u5230\u5173\u8054\u7684\u4f18\u5148\u7ea7\u3002<\/li>\n<\/ul>\n<p><code>PriorityLevelConfiguration<\/code> \u7684 <code>.spec<\/code> \u914d\u7f6e\u6709\u4e09\u4e2a\u90e8\u5206\uff1a<\/p>\n<ul>\n<li><code>type<\/code>\uff1a\u53ef\u4ee5\u662f <code>Exempt<\/code> \u6216\u8005 <code>Limited<\/code>\uff0c<code>Exempt<\/code> \u8868\u793a\u8c41\u514d\u8bf7\u6c42\uff0c\u5373\u8be5\u8bf7\u6c42\u4e0d\u4f1a\u8fdb\u5165\u961f\u5217\u6392\u961f\uff0c\u800c\u662f\u88ab\u7acb\u5373\u5904\u7406\u3002<\/li>\n<li><code>exempt<\/code>\uff1a\u5f53 <code>type<\/code> \u662f <code>Exempt<\/code> \u65f6\u53ef\u4ee5\u914d\u7f6e\u8c41\u514d\u7684\u66f4\u591a\u7ec6\u8282\u3002<\/li>\n<li>\n<p><code>limited<\/code>\uff1a\u4f18\u5148\u7ea7\u961f\u5217\u76f8\u5173\u914d\u7f6e\uff0c\u5305\u62ec\u4ee5\u4e0b\u5b50\u5c5e\u6027\uff1a<\/p>\n<ul>\n<li><code>borrowingLimitPercent<\/code>\uff1a\u6b64\u4f18\u5148\u7ea7\u53ef\u4ee5\u501f\u5165\u7684\u989d\u5ea6\u3002<\/li>\n<li><code>lendablePercent<\/code>\uff1a\u6b64\u4f18\u5148\u7ea7\u53ef\u4ee5\u501f\u51fa\u7684\u989d\u5ea6\u3002<\/li>\n<li><code>nominalConcurrencyShares<\/code>\uff1a\u540d\u4e49\u5e76\u53d1\u989d\u5ea6\u3002\u501f\u5165\u548c\u501f\u51fa\u989d\u5ea6\u8bbe\u7f6e\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u5f39\u6027\u3002<\/li>\n<li><code>limitResponse<\/code>\uff1a\u5f53 <code>type<\/code> \u662f <code>Reject<\/code> \u65f6\uff0c\u591a\u4f59\u8bf7\u6c42\u88ab\u7acb\u5373\u54cd\u5e94 429\uff1b\u5f53 <code>type<\/code> \u662f <code>Queue<\/code> \u65f6\u53ef\u4ee5\u8fdb\u4e00\u6b65\u8bbe\u7f6e\u961f\u5217\u7684\u7ec6\u8282\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><code>APF<\/code> \u9700\u8981\u8bbe\u7f6e <code>kube-apiserver<\/code> \u7684 <code>--enable-priority-and-fairness<\/code> \u4e3a true \u5f00\u542f\uff08\u65b0\u7248\u672c\u9ed8\u8ba4\u5f00\u542f\uff09\uff0c\u6b64\u65f6 <code>--max-requests-inflight<\/code> \u548c <code>--max-mutating-requests-inflight<\/code> \u76f8\u52a0\u7684\u503c\u51b3\u5b9a\u4e86 <code>kube-apiserver<\/code> \u7684\u603b\u5e76\u53d1\u6570\uff0c\u603b\u5e76\u53d1\u6570\u548c\u4f18\u5148\u7ea7\u7684\u914d\u989d\u51b3\u5b9a\u4e86\u6bcf\u4e2a\u4f18\u5148\u7ea7\u7684\u5e76\u53d1\u80fd\u529b\u3002\u5f00\u542f <code>APF<\/code> \u540e\uff0c\u4e0d\u518d\u533a\u5206\u67e5\u8be2\u7c7b\u8bf7\u6c42\u548c\u53d8\u66f4\u7c7b\u8bf7\u6c42\uff0c\u53ea\u6839\u636e <code>FlowSchema<\/code> \u8fdb\u884c\u5206\u6d41\u3002<\/p>\n<h3>\u5185\u7f6e\u7684 FlowSchema \u548c PriorityLevelConfiguration<\/h3>\n<p>\u4e3a\u4e86\u964d\u4f4e\u7528\u6237\u7684\u64cd\u4f5c\u6210\u672c\uff0ckubernetes \u5185\u7f6e\u4e86\u591a\u79cd <code>FlowSchema<\/code> \u548c <code>PriorityLevelConfiguration<\/code>\uff0c\u8fd9\u4e9b\u5bf9\u8c61\u88ab\u5212\u5206\u4e3a\u5f3a\u5236\u548c\u5efa\u8bae\u4e24\u7c7b\u3002\u5bf9\u4e8e\u5f3a\u5236\u7684\u914d\u7f6e\u5bf9\u8c61\uff0ck8s \u4f1a\u786e\u4fdd\u8be5\u5bf9\u8c61\u5b58\u5728\uff0c\u4e14\u4e0d\u53d7\u7528\u6237\u63a7\u5236\uff1b\u5bf9\u4e8e\u5efa\u8bae\u7684\u914d\u7f6e\u5bf9\u8c61\uff0c\u540c\u6837\u4f1a\u786e\u4fdd\u8be5\u5bf9\u8c61\u5b58\u5728\uff0c\u4f46\u662f\u7528\u6237\u53ef\u4ee5\u63a7\u5236\u3002<\/p>\n<p>\u5177\u4f53\u5185\u7f6e\u4e86\u54ea\u4e9b <code>FlowSchema<\/code> \u548c <code>PriorityLevelConfiguration<\/code> \u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000045671405\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u4ece\u8fd9\u4e9b <code>FlowSchema<\/code> \u548c <code>PriorityLevelConfiguration<\/code> \u7684\u540d\u5b57\u5c31\u80fd\u770b\u51fa\u6765\u5b83\u4eec\u5206\u6d41\u548c\u4f18\u5148\u7ea7\u7684\u610f\u56fe\uff0c\u96c6\u7fa4\u5185\u90e8\u7ec4\u4ef6\u7684\u8bf7\u6c42\uff0c\u5982\uff1a\u8282\u70b9\u7684\u76d1\u63a7\u72b6\u6001\u66f4\u65b0\u3001kubelet \u5176\u5b83\u8bf7\u6c42\u3001\u5185\u7f6e\u63a7\u5236\u5668\u9009\u4e3b\u3001\u5185\u7f6e\u63a7\u5236\u5668\u7684\u5176\u5b83\u8bf7\u6c42 &#8230; \u7b49\u7b49\u90fd\u5df2\u7ecf\u88ab\u56ca\u62ec\u5176\u4e2d\uff0c\u53e6\u5916\u8fd8\u6709 <code>catch-all<\/code> \u548c <code>global-default<\/code> \u8fdb\u884c\u515c\u5e95\uff0c\u786e\u4fdd\u6240\u6709\u8bf7\u6c42\u90fd\u88ab\u5206\u6d41\u5230\u5177\u4f53\u7684\u4f18\u5148\u7ea7\u961f\u5217\u3002<\/p>\n<p>\u5f53\u7136\u7528\u6237\u4e5f\u53ef\u4ee5\u5b9a\u4e49\u81ea\u5df1\u7684 <code>FlowSchema<\/code> \u548c <code>PriorityLevelConfiguration<\/code>\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p><code>APF<\/code> \u5728 v1.29 \u7248\u672c\u6210\u4e3a\u7a33\u5b9a\u7684\u7279\u6027\uff0c\u4e3a <code>kube-apiserver<\/code> \u7684\u6d41\u91cf\u63a7\u5236\u63d0\u4f9b\u4e86\u66f4\u7ec6\u7c92\u5ea6\u7684\u5904\u7406\u673a\u5236\u3002<\/p>\n<hr>\n<p>(\u6211\u662f\u51cc\u865a\uff0c\u5173\u6ce8\u6211\uff0c\u65e0\u5e7f\u544a\uff0c\u4e13\u6ce8\u6280\u672f\uff0c\u6b22\u8fce\u4ea4\u6d41\u6216\u4e3a\u6211\u63a8\u8350\u5de5\u4f5c)<\/p>\n<hr>\n<p>\u53c2\u8003\u8d44\u6599\uff1a<\/p>\n<ul>\n<li><em><a href=\"https:\/\/link.segmentfault.com\/?enc=YgEoyLTUoleB73CYWAnhsw%3D%3D.7i5qidKs%2B%2BVi7%2BP%2B9L0QRLIhvb%2FHMYrmtHeukpOJqtfWQ9z6VakAJJkl3N4ITebpe71N4SKkj%2Bl9IoGv30Axo2nbb2LuqLz4WWvpNpylm%2F8%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">https:\/\/kubernetes.io\/docs\/concepts\/cluster-administration\/fl&#8230;<\/a><\/em><\/li>\n<li><em><a href=\"https:\/\/link.segmentfault.com\/?enc=YW8Eu8agp%2BjPqnjIjAjUGw%3D%3D.Vhchn2JdwY7F58Gjc55GOquB%2BvzfK2Ba9WZl9BOAozRaCanssfZbvebD0hJUtwYSs9pur9DPlxlmMmz9IPOaFJ%2FnoiS5ef7apaQPU5X%2B26dGcgMpTbMoPnqUbAy4L0Pf\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">https:\/\/kubernetes.io\/docs\/reference\/command-line-tools-refer&#8230;<\/a><\/em><\/li>\n<li><em><a href=\"https:\/\/link.segmentfault.com\/?enc=LjVKELN1ewp1WbbdeXQ5bQ%3D%3D.hwuVPGhztzpdxOrVBY27%2BDbaDD8lyMF8IJGZKmShFS08j1ljIUPjrr5NdntaJIzNU%2FA2jv0taakzF%2Bvddt91HRMSKzTRvwPnzHOW56AAT6JzWd9XZmWeQ3O3Dv8dF%2BV%2BbsMAaETfAcL4dQ2zjuvU5Q%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">https:\/\/github.com\/kubernetes\/enhancements\/tree\/master\/keps\/sig-api-machinery\/1040-priority-and-fairness<\/a><\/em><\/li>\n<\/ul>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000045671401\">https:\/\/segmentfault.com\/a\/1190000045671401<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Kubernetes \u96c6\u7fa4\u4e2d\uff0ckube-apiserver \u662f\u4e00\u4e2a\u81f3\u5173\u91cd\u8981\u7684\u7ec4\u4ef6\uff0c\u5b83\u4e0d\u4ec5\u8981\u5bf9\u5916\u54cd\u5e94\u5ba2\u6237\u7aef\u7684 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10020542","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020542","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10020542"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020542\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10020542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10020542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10020542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}