{"id":29,"date":"2021-01-08T16:23:05","date_gmt":"2021-01-08T08:23:05","guid":{"rendered":"https:\/\/similiaotian.com\/?p=29"},"modified":"2021-01-08T16:23:05","modified_gmt":"2021-01-08T08:23:05","slug":"kubernetes%e8%b0%83%e5%ba%a6%e7%94%b1%e6%b5%85%e5%85%a5%e6%b7%b1%ef%bc%9a%e5%88%9d%e6%8e%a2","status":"publish","type":"post","link":"https:\/\/99.feige5.com\/?p=29","title":{"rendered":"Kubernetes\u8c03\u5ea6\u7531\u6d45\u5165\u6df1\uff1a\u521d\u63a2"},"content":{"rendered":"\n<p>\u4eceCNCF\u57fa\u91d1\u4f1a\u7684\u6210\u7acb\uff0c\u5230Kubernetes\u793e\u533a\u84ec\u52c3\u53d1\u5c55\uff0c\u5386\u7ecf6\u8f7d\uff0c17\u5e74\u5f02\u519b\u7a81\u8d77\uff0c\u5728mesos\u3001swarm\u7b49\u9879\u76ee\u89d2\u9010\u4e2d\uff0c\u62d4\u5f97\u5934\u7b79\uff0c\u7ee7\u800c\u4e00\u7edf\u5bb9\u5668\u7f16\u6392,\u5176\u6210\u529f\u7684\u5173\u952e\u539f\u56e0\u53ef\u6982\u62ec\u4e3a\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u9879\u76ee\u9886\u5bfc\u8005\u4eec\u7684\u575a\u5b88\u4e0e\u8fdc\u89c1<\/li><li>\u793e\u533a\u7684\u826f\u597d\u7684\u8fd0\u4f5c\u4e0e\u793e\u533a\u6587\u5316<\/li><li>\u793e\u533a\u4e0e\u4f01\u4e1a\u843d\u5730\u7684\u6b63\u53cd\u9988<\/li><\/ul>\n\n\n\n<p>\u867d\u7136\u9488\u5bf9kubernetes\u7684\u4ecb\u7ecd\u5df2\u7ecf\u6bd4\u8f83\u591a\u4e86\uff0c\u4f46\u662f\u4e91\u539f\u751f\u8fd8\u662fKubernetes\u9879\u76ee\u7684\u53d1\u5c55\u90fd\u5df2\u7ecf\u8fc8\u5165\u6df1\u6c34\u533a\uff0c\u56e0\u800c\u4eca\u5929zouyee\u4e3a\u5927\u5bb6\u5e26\u6765\u300akuberneter\u8c03\u5ea6\u7531\u6d45\u5165\u6df1\u300b\uff0c\u5e0c\u671b\u901a\u8fc7\u63a5\u4e0b\u6765\u7684\u4e94\u7bc7\u6587\u7ae0\uff0c\u8ba9\u5404\u4f4d\u80fd\u591f\u7cfb\u7edf\u6df1\u5165\u7684\u4e86\u89e3kubernetes\u8c03\u5ea6\u7cfb\u7edf\uff0c\u8be5\u7cfb\u5217\u5bf9\u5e94\u7248\u672c\u4e3a<code>1.20.+<\/code>\uff0c\u4eca\u5929\u5e26\u6765\u300aKubernetes\u8c03\u5ea6\u7cfb\u7edf\u7531\u6d45\u5165\u6df1\u7cfb\u5217\uff1a\u521d\u63a2\u300b<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u4e00\u3001\u8c03\u5ea6\u7b80\u4ecb<\/h4>\n\n\n\n<p>\u200b \u5728\u5f00\u59cb\u524d\uff0c\u5148\u6765\u770b\u770bKubernetes\u7684\u67b6\u6784\u793a\u610f\u56fe\uff0c\u5176\u4e2d\u63a7\u5236\u5e73\u9762\u5305\u542b\u4ee5\u4e0b\u4e09\u5927\u7ec4\u4ef6\uff1akube-scheduler\u3001kube-apiserver\u3001kube-controller-manager\u3002kubelet\u53cakube-proxy\u7ec4\u4ef6\u7684\u5206\u6790\u6211\u4eec\u540e\u7eed\u5355\u72ec\u6210\u7ae0\u8fdb\u884c\u8bb2\u89e3\uff0c\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u7b80\u5355\u7ed9\u7406\u89e3\u4e0a\u8ff0\u7ec4\u4ef6\u7684\u96be\u6613\u7a0b\u5ea6\u6392\u4e2a\u5e8f\uff0ckube-apiserver\u3001kubelet\u3001kube-scheduler\u3001kube-controller-manager\u3001kube-proxy\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/p3-juejin.byteimg.com\/tos-cn-i-k3u1fbpfcp\/b414ee2507ef43228183b403b962c59b~tplv-k3u1fbpfcp-zoom-1.image\" alt=\"Components of Kubernetes\"\/><\/figure>\n\n\n\n<p>{%note danger%}<\/p>\n\n\n\n<p>\u200b \u5982\u4e0a\u6240\u8ff0\uff0c<code>kube-scheduler<\/code>\u662fK8S\u7cfb\u7edf\u7684\u6838\u5fc3\u7ec4\u4ef6\u4e4b\u4e00\uff0c\u5176\u4e3b\u8981\u8d1f\u8d23Pod\u7684\u8c03\u5ea6\uff0c\u5176\u76d1\u542ckube-apiserver\uff0c\u67e5\u8be2\u672a\u5206\u914d Node\u7684Pod\uff08\u672a\u5206\u914d\u3001\u5206\u914d\u5931\u8d25\u53ca\u5c1d\u8bd5\u591a\u6b21\u65e0\u6cd5\u5206\u914d\uff09\uff0c\u6839\u636e\u914d\u7f6e\u7684\u8c03\u5ea6\u7b56\u7565\uff0c\u5c06Pod\u8c03\u5ea6\u5230\u6700\u4f18\u7684\u5de5\u4f5c\u8282\u70b9\u4e0a\uff0c\u4ece\u800c\u9ad8\u6548\u3001\u5408\u7406\u7684\u5229\u7528\u96c6\u7fa4\u7684\u8d44\u6e90\uff0c\u8be5\u7279\u6027\u662f\u7528\u6237\u9009\u62e9K8S\u7cfb\u7edf\u7684\u5173\u952e\u56e0\u7d20\u4e4b\u4e00\uff0c\u5e2e\u52a9\u7528\u6237\u63d0\u5347\u6548\u7387\u3001\u964d\u4f4e\u80fd\u8017\u3002<\/p>\n\n\n\n<p>{%endnote%}<\/p>\n\n\n\n<p>\u200b <code>kube-scheduler<\/code> \u8d1f\u8d23\u5c06Pod \u8c03\u5ea6\u5230\u96c6\u7fa4\u5185\u7684<em>\u6700\u4f73\u8282\u70b9<\/em>(\u57fa\u4e8e\u76f8\u5e94\u7b56\u7565\u8ba1\u7b97\u51fa\u7684\u6700\u4f73\u503c)\u4e0a\uff0c\u5b83\u76d1\u542c<code> kube-apiserver<\/code>\uff0c\u67e5\u8be2\u8fd8\u672a\u5206\u914d\u8282\u70b9 \u7684 Pod\uff0c\u7136\u540e\u6839\u636e\u8c03\u5ea6\u7b56\u7565\u4e3a\u8fd9\u4e9b Pod \u5206\u914d\u8282\u70b9\uff0c\u6267\u884c\u7ed1\u5b9a\u8282\u70b9\u7684\u64cd\u4f5c(\u66f4\u65b0Pod\u7684<strong>nodeName<\/strong>\u5b57\u6bb5)\u3002<\/p>\n\n\n\n<p>\u200b \u5728\u4e0a\u8ff0\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u8003\u8651\u4ee5\u4e0b\u95ee\u9898\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5982\u4f55\u786e\u4fdd\u8282\u70b9\u5206\u914d\u7684\u516c\u5e73\u6027<\/li><li>\u5982\u4f55\u786e\u4fdd\u8282\u70b9\u8d44\u6e90\u5206\u914d\u7684\u9ad8\u6548\u6027<\/li><li>\u5982\u4f55\u786e\u4fddPod\u8c03\u5ea6\u7684\u516c\u5e73\u6027<\/li><li>\u5982\u4f55\u786e\u4fddPod\u8c03\u5ea6\u7684\u9ad8\u6548\u6027<\/li><li>\u5982\u4f55\u6269\u5c55Pod\u8c03\u5ea6\u7b56\u7565<\/li><\/ul>\n\n\n\n<p>\u4e3a\u89e3\u51b3\u4e0a\u8ff0\u7684\u95ee\u9898\uff0c<code>kube-scheduler<\/code>\u901a\u8fc7\u6c47\u96c6\u8282\u70b9\u8d44\u6e90\u3001\u8282\u70b9\u5730\u57df\u3001\u8282\u70b9\u955c\u50cf\u3001Pod\u8c03\u5ea6\u7b49\u4fe1\u606f\u7efc\u5408\u51b3\u7b56\uff0c\u786e\u4fddPod\u5206\u914d\u5230\u6700\u4f73\u8282\u70b9\uff0c\u4ee5\u4e0b\u4e3a<code>kube-scheduler<\/code>\u7684\u4e3b\u8981\u76ee\u6807\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u516c\u5e73\u6027\uff1a\u5728\u8c03\u5ea6Pod\u65f6\u9700\u8981\u516c\u5e73\u7684\u51b3\u7b56\uff0c\u6bcf\u4e2a\u8282\u70b9\u90fd\u6709\u88ab\u5206\u914d\u7684\u673a\u4f1a\uff0c\u8c03\u5ea6\u5668\u9700\u8981\u9488\u5bf9\u4e0d\u540c\u8282\u70b9\u4f5c\u51fa\u5e73\u8861\u51b3\u7b56\u3002<\/li><li>\u8d44\u6e90\u9ad8\u6548\uff1a\u6700\u5927\u5316\u63d0\u5347\u6240\u6709\u53ef\u8c03\u5ea6\u8d44\u6e90\u7684\u5229\u7528\u7387\uff0c\u4f7f\u6709\u9650\u7684CPU\u3001\u5185\u5b58\u7b49\u8d44\u6e90\u670d\u52a1\u5c3d\u53ef\u80fd\u66f4\u591a\u7684Pod\u3002<\/li><li>\u6027\u80fd\uff1a\u80fd\u5feb\u901f\u7684\u5b8c\u6210\u5bf9\u5927\u89c4\u6a21Pod\u7684\u8c03\u5ea6\u5de5\u4f5c\uff0c\u5728\u96c6\u7fa4\u89c4\u6a21\u6269\u589e\u7684\u60c5\u51b5\u4e0b\uff0c\u4f9d\u7136\u80fd\u786e\u4fdd\u8c03\u5ea6\u7684\u6027\u80fd\u3002<\/li><li>\u7075\u6d3b\u6027\uff1a\u5728\u5b9e\u9645\u751f\u4ea7\u4e2d\uff0c\u7528\u6237\u5e0c\u671bPod\u7684\u8c03\u5ea6\u7b56\u7565\u662f\u53ef\u6269\u5c55\u7684\uff0c\u4ece\u800c\u53ef\u4ee5\u5b9a\u5236\u5316\u8c03\u5ea6\u7b97\u6cd5\u4ee5\u5904\u7406\u590d\u6742\u7684\u5b9e\u9645\u95ee\u9898\u3002\u56e0\u6b64\u5e73\u53f0\u8981\u5141\u8bb8\u591a\u79cd\u8c03\u5ea6\u5668\u5e76\u884c\u5de5\u4f5c\uff0c\u5e76\u652f\u6301\u81ea\u5b9a\u4e49\u8c03\u5ea6\u5668\u3002<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u4e8c\u3001\u8c03\u5ea6\u6d41\u7a0b<\/h4>\n\n\n\n<p>\u9996\u5148\u6211\u4eec\u901a\u8fc7\u4e0b\u9762\u7684\u6574\u4f53\u7684\u4ea4\u4e92\u56fe\uff0c\u6765\u6784\u5efaPod\u8c03\u5ea6\u7684\u76f4\u89c2\u611f\u53d7\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/p3-juejin.byteimg.com\/tos-cn-i-k3u1fbpfcp\/29403f9c11ed4deba5b9036bb3b193a7~tplv-k3u1fbpfcp-zoom-1.image\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u4e0a\u8ff0\u4ee5\u521b\u5efa\u4e00\u4e2aPod\u4e3a\u4f8b\uff0c\u7b80\u8981\u4ecb\u7ecd\u8c03\u5ea6\u6d41\u7a0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u7528\u6237\u901a\u8fc7\u547d\u4ee4\u884c\u521b\u5efaPod(\u9009\u62e9\u76f4\u63a5\u521b\u5efaPod\u800c\u4e0d\u662f\u5176\u4ed6workload\uff0c\u662f\u4e3a\u4e86\u7701\u7565kube-controller-manager)<\/li><li>kube-apiserver\u7ecf\u8fc7\u5bf9\u8c61\u6821\u9a8c\u3001admission\u3001quota\u7b49\u51c6\u5165\u64cd\u4f5c\uff0c\u5199\u5165etcd<\/li><li>kube-apiserver\u5c06\u7ed3\u679c\u8fd4\u56de\u7ed9\u7528\u6237<\/li><li>\u540c\u65f6kube-scheduler\u4e00\u76f4\u76d1\u542c\u8282\u70b9\u3001Pod\u4e8b\u4ef6\u7b49\uff08\u6d41\u7a0b1\uff09<\/li><li>kube-scheduler\u5c06spec.nodeName\u7684pod\u52a0\u5165\u5230\u8c03\u5ea6\u961f\u5217\u4e2d\uff0c\u8fdb\u884c\u8c03\u5ea6\u5468\u671f\uff08\u8be5\u5468\u671f\u5373\u4f4d\u540e\u7eed\u4ecb\u7ecd\u5185\u5bb9\uff09\uff08\u6d41\u7a0b2-3\uff09<\/li><li>kube-scheduler\u5c06pod\u4e0e\u5f97\u5206\u6700\u9ad8\u7684\u8282\u70b9\u8fdb\u884cbinding\u64cd\u4f5c\uff08\u6d41\u7a0b4\uff09<\/li><li>kube-apiserver\u5c06binding\u4fe1\u606f\u5199\u5165etcd<\/li><li>kubelet\u76d1\u542c\u5206\u914d\u7ed9\u81ea\u5df1\u7684Pod\uff0c\u8c03\u7528CRI\u63a5\u53e3\u8fdb\u884cPod\u521b\u5efa\uff08\u8be5\u90e8\u5206\u5185\u5bb9\u540e\u7eed\u51fa\u7cfb\u5217\uff0c\u8fdb\u884c\u4ecb\u7ecd\uff09<\/li><li>kubelet\u521b\u5efaPod\u540e\uff0c\u66f4\u65b0Pod\u72b6\u6001\u7b49\u4fe1\u606f\uff0c\u5e76\u5411kube-apiserver\u4e0a\u62a5<\/li><li>kube-apiserver\u5199\u5165\u6570\u636e<\/li><\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">\u8c03\u5ea6\u5468\u671f<\/h5>\n\n\n\n<p><code>kube-scheduler<\/code>\u7684\u5de5\u4f5c\u4efb\u52a1\u662f\u6839\u636e\u5404\u79cd\u8c03\u5ea6\u7b97\u6cd5\u5c06Pod\u7ed1\u5b9a\uff08bind\uff09\u5230\u6700\u5408\u9002\u7684\u5de5\u4f5c\u8282\u70b9\uff0c\u6574\u4e2a\u8c03\u5ea6\u6d41\u7a0b\u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5\uff1a\u8fc7\u6ee4\u548c\u8bc4\u5206\u3002\u6d41\u7a0b\u793a\u610f\u56fe\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/p3-juejin.byteimg.com\/tos-cn-i-k3u1fbpfcp\/3fca1c344539401a8b6b7e94f0edaeeb~tplv-k3u1fbpfcp-zoom-1.image\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u200b \u6ce8\uff1a\u4ee5\u524d\u79f0\u4e4b\u4e3apredicate\u4e0epriorities\uff0c\u5f53\u524d\u7edf\u79f0\u4e3a\u8fc7\u6ee4\u4e0e\u8bc4\u5206\uff0c\u5b9e\u9645\u6548\u679c\u4e00\u81f4<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>\u8fc7\u6ee4<\/strong>\uff1a\u8f93\u5165\u662f\u6240\u6709\u8282\u70b9\uff0c\u8f93\u51fa\u662f\u6ee1\u8db3\u9884\u9009\u6761\u4ef6\u7684\u8282\u70b9\u3002<code>kube-scheduler<\/code>\u6839\u636e\u8fc7\u6ee4\u7b56\u7565\u8fc7\u6ee4\u6389\u4e0d\u6ee1\u8db3\u7684\u8282\u70b9\u3002\u4f8b\u5982\uff0c\u5982\u679c\u67d0\u8282\u70b9\u7684\u8d44\u6e90\u4e0d\u8db3\u6216\u8005\u4e0d\u6ee1\u8db3\u9884\u9009\u7b56\u7565\u7684\u6761\u4ef6\u5982\u201c\u8282\u70b9\u7684\u6807\u7b7e\u5fc5\u987b\u4e0ePod\u7684Selector\u4e00\u81f4\u201d\u65f6\u5219\u65e0\u6cd5\u901a\u8fc7\u8fc7\u6ee4\u3002<\/li><li>**\u8bc4\u5206\uff1a**\u8f93\u5165\u662f\u901a\u8fc7\u8fc7\u6ee4\u9636\u6bb5\u7684\u8282\u70b9\uff0c\u8bc4\u5206\u65f6\u4f1a\u6839\u636e\u8bc4\u5206\u7b97\u6cd5\u4e3a\u901a\u8fc7\u8fc7\u6ee4\u7684\u8282\u70b9\u8fdb\u884c\u6253\u5206\uff0c\u9009\u62e9\u5f97\u5206\u6700\u9ad8\u7684\u8282\u70b9\u3002\u4f8b\u5982\uff0c\u8d44\u6e90\u8d8a\u5145\u8db3\u3001\u8d1f\u8f7d\u8d8a\u5c0f\u7684\u8282\u70b9\u53ef\u80fd\u5177\u6709\u8d8a\u9ad8\u7684\u6392\u540d\u3002<\/li><\/ul>\n\n\n\n<p>\u200b \u901a\u4fd7\u70b9\u8bf4\uff0c\u8c03\u5ea6\u7684\u8fc7\u7a0b\u5c31\u662f\u5728\u56de\u7b54\u4e24\u4e2a\u95ee\u9898\uff1a1. \u5019\u9009\u8282\u70b9\u6709\u54ea\u4e9b\uff1f2. \u5176\u4e2d\u6700\u9002\u5408\u7684\u662f\u54ea\u4e00\u4e2a\uff1f<\/p>\n\n\n\n<p>\u200b \u5982\u679c\u5728\u8fc7\u6ee4\u9636\u6bb5\u6ca1\u6709\u8282\u70b9\u6ee1\u8db3\u6761\u4ef6\uff0cPod\u4f1a\u4e00\u76f4\u5904\u5728Pending\u72b6\u6001\u76f4\u5230\u51fa\u73b0\u6ee1\u8db3\u7684\u8282\u70b9\uff0c\u5728\u6b64\u671f\u95f4\u8c03\u5ea6\u5668\u4f1a\u4e0d\u65ad\u7684\u8fdb\u884c\u91cd\u8bd5\u3002\u5982\u679c\u6709\u591a\u4e2a\u8282\u70b9\u8bc4\u5206\u4e00\u81f4\uff0c\u90a3\u4e48<code>kube-scheduler<\/code>\u4efb\u610f\u9009\u62e9\u5176\u4e00\u3002<\/p>\n\n\n\n<p>\u200b \u6ce8\uff1aPod\u9996\u5148\u8fdb\u5165\u8c03\u5ea6\u961f\u5217\uff0c\u5931\u8d25\u540e\u8fdb\u5165backoff\uff0c\u591a\u6b21\u5931\u8d25\u540e\u8fdb\u5165unschedule\uff0c\u8be5\u90e8\u5206\u5185\u5bb9\u540e\u7eed\u4ecb\u7ecd\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u8c03\u5ea6\u7b97\u6cd5<\/h5>\n\n\n\n<p>\u5f53\u524d\u652f\u6301\u4e24\u79cd\u65b9\u5f0f\u914d\u7f6e\u8fc7\u6ee4\u3001\u8bc4\u5206\u7b97\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>1. Scheduling Policies\uff1a\u901a\u8fc7\u6587\u4ef6\u6216\u8005configmap\u914d\u7f6ePredicate\u7b97\u6cd5(\u8fc7\u6ee4)\u548c Priorities\u7b97\u6cd5(\u8bc4\u5206)\u7684\u7b97\u6cd5\n2. Scheduling Profiles\uff1a\u5f53\u524d\u8c03\u5ea6\u7cfb\u7edf\u4e3a\u63d2\u62d4\u67b6\u6784\uff0c\u5176\u5c06\u8c03\u5ea6\u5468\u671f\u5206\u4e3a `QueueSort`\u3001`PreFilter`\u3001`Filter`\u3001`PreScore`\u3001`Score`\u3001`Reserve`\u3001`Permit`\u3001`PreBind`\u3001`Bind`\u3001`PostBind`\u7b49\u9636\u6bb5\uff0c\u901a\u8fc7\u5b9a\u5236\u8c03\u5ea6\u5468\u671f\u4e2d\u4e0d\u540c\u9636\u6bb5\u7684\u63d2\u4ef6\u884c\u4e3a\u6765\u5b9e\u73b0\u81ea\u5b9a\u4e49\u3002\n\u590d\u5236\u4ee3\u7801<\/code><\/pre>\n\n\n\n<p>\u4e0b\u9762\u7b80\u5355\u4ecb\u7ecd\u4e00\u4e0b\u901a\u8fc7Scheduling Policies\u65b9\u5f0f\u914d\u7f6e<\/p>\n\n\n\n<p><code>pkg\/scheduler\/framework\/plugins\/legacy_registry.go<\/code><\/p>\n\n\n\n<p><em><strong>\u9884\u9009(Precates)<\/strong><\/em><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u7b97\u6cd5\u540d\u79f0<\/th><th>\u7b97\u6cd5\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td>MatchInterPodAffinity<\/td><td>\u68c0\u67e5pod\u8d44\u6e90\u5bf9\u8c61\u4e0e\u5176\u4ed6pod\u8d44\u6e90\u5bf9\u8c61\u662f\u5426\u7b26\u5408\u4eb2\u548c\u6027\u89c4\u5219<\/td><\/tr><tr><td>CheckVolumeBinding<\/td><td>\u68c0\u67e5\u8282\u70b9\u662f\u5426\u6ee1\u8db3pod\u8d44\u6e90\u5bf9\u8c61\u7684pvc\u6302\u8f7d\u9700\u6c42<\/td><\/tr><tr><td>GeneralPredicates<\/td><td>\u68c0\u67e5\u8282\u70b9\u4e0apod\u8d44\u6e90\u5bf9\u8c61\u6570\u91cf\u7684\u4e0a\u7ebf\uff0c\u4ee5\u53caCPU \u5185\u5b58 GPU\u7b49\u8d44\u6e90\u662f\u5426\u7b26\u5408\u8981\u6c42<\/td><\/tr><tr><td>HostName<\/td><td>\u68c0\u67e5Pod\u6307\u5b9a\u7684NodeName\u662f\u5426\u5339\u914d\u5f53\u524d\u8282\u70b9<\/td><\/tr><tr><td>PodFitsHostPorts<\/td><td>\u68c0\u67e5Pod\u5bb9\u5668\u6240\u9700\u7684HostPort\u662f\u5426\u5df2\u88ab\u8282\u70b9\u4e0a\u5176\u5b83\u5bb9\u5668\u6216\u670d\u52a1\u5360\u7528\u3002\u5982\u679c\u5df2\u88ab\u5360\u7528\uff0c\u5219\u7981\u6b62Pod\u8c03\u5ea6\u5230\u8be5\u8282\u70b9<\/td><\/tr><tr><td>MatchNodeSelector<\/td><td>\u68c0\u67e5Pod\u7684\u8282\u70b9\u9009\u62e9\u5668\u662f\u5426\u4e0e\u8282\u70b9\u7684\u6807\u7b7e\u5339\u914d<\/td><\/tr><tr><td>PodFitsResources<\/td><td>\u68c0\u67e5\u8282\u70b9\u662f\u5426\u6709\u8db3\u591f\u7a7a\u95f2\u8d44\u6e90\uff08\u4f8b\u5982CPU\u548c\u5185\u5b58\uff09\u6765\u6ee1\u8db3Pod\u7684\u8981\u6c42<\/td><\/tr><tr><td>NoDiskConflict<\/td><td>\u68c0\u67e5\u5f53\u524dpod\u8d44\u6e90\u5bf9\u8c61\u4f7f\u7528\u7684\u5377\u662f\u5426\u4e0e\u8282\u70b9\u4e0a\u5176\u4ed6\u7684pod\u8d44\u6e90\u5bf9\u8c61\u4f7f\u7528\u7684\u5377\u51b2\u7a81<\/td><\/tr><tr><td>PodToleratesNodeTaints<\/td><td>\u5982\u679c\u5f53\u524d\u8282\u70b9\u88ab\u6807\u8bb0\u4e3ataints\uff0c\u68c0\u67e5pod\u8d44\u6e90\u5bf9\u8c61\u662f\u5426\u80fd\u5bb9\u5fcdnode taints<\/td><\/tr><tr><td>CheckNodeUnschedulable<\/td><td>\u68c0\u67e5\u8282\u70b9\u662f\u5426\u53ef\u8c03\u5ea6<\/td><\/tr><tr><td>CheckNodeLabelPresence<\/td><td>\u68c0\u67e5\u8282\u70b9\u6807\u7b7e\u662f\u5426\u5b58\u5728<\/td><\/tr><tr><td>CheckServiceAffinity<\/td><td>\u68c0\u67e5\u670d\u52a1\u4eb2\u548c\u6027<\/td><\/tr><tr><td>MaxCSIVolumeCountPred<\/td><td>\u5982\u679c\u8bbe\u7f6e\u4e86featuregate \uff08attachvolumelimit\uff09\u529f\u80fd\uff0c\u68c0\u67e5pod\u8d44\u6e90\u5bf9\u8c61\u6302\u8f7d\u7684csi\u5377\u662f\u5426\u8d85\u51fa\u4e86\u8282\u70b9\u4e0a\u5377\u7684\u6700\u5927\u6302\u8f7d\u6570\u91cf<\/td><\/tr><tr><td>NoVolumeZoneConflict<\/td><td>\u68c0\u67e5pod\u8d44\u6e90\u5bf9\u8c61\u6302\u8f7dpvc\u662f\u5426\u5c5e\u4e8e\u8de8\u533a\u57df\u6302\u8f7d\uff0c\u56e0\u4e3agce\u7684pd\u5b58\u50a8\u6216aws\u7684ebs\u5377\u90fd\u4e0d\u652f\u6301\u8de8\u533a\u57df\u6302\u8f7d<\/td><\/tr><tr><td>EvenPodsSpreadPred<\/td><td>\u4e00\u7ec4 Pod \u5728\u67d0\u4e2a TopologyKey \u4e0a\u7684\u5747\u8861\u6253\u6563\u9700\u6c42<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u6ce8\uff1a\u5176\u4e2d MaxEBSVolumeCountPred\u3001 MaxGCEPDVolumeCountPred MaxAzureDiskVolumeCountPred\u3001MaxCinderVolumeCountPred \u7b49\u4e91\u5382\u5546\u76f8\u5173\u9884\u9009\u7b97\u6cd5\u5df2\u7ecf\u5e9f\u5f03<\/p>\n\n\n\n<p><em><strong>\u4f18\u9009(Priorities)<\/strong><\/em><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u7b97\u6cd5\u540d\u79f0<\/th><th>\u7b97\u6cd5\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td>EqualPriority<\/td><td>\u8282\u70b9\u6743\u91cd\u76f8\u7b49<\/td><\/tr><tr><td>MostRequestedPriority<\/td><td>\u504f\u5411\u5177\u6709\u6700\u591a\u8bf7\u6c42\u8d44\u6e90\u7684\u8282\u70b9\u3002\u8fd9\u4e2a\u7b56\u7565\u5c06\u628a\u8ba1\u5212\u7684Pods\u653e\u5230\u6574\u4e2a\u5de5\u4f5c\u8d1f\u8f7d\u96c6\u6240\u9700\u7684\u6700\u5c0f\u8282\u70b9\u4e0a\u8fd0\u884c\u3002<\/td><\/tr><tr><td>RequestedToCapacityRatioPriority<\/td><td>\u4f7f\u7528\u9ed8\u8ba4\u7684\u8d44\u6e90\u8bc4\u5206\u51fd\u6570\u6a21\u578b\u521b\u5efa\u57fa\u4e8eResourceAllocationPriority\u7684requestedToCapacity\u3002<\/td><\/tr><tr><td>SelectorSpreadPriority<\/td><td>\u5c06\u5c5e\u4e8e\u76f8\u540cservice rcs rss sts \u7684pod\u5c3d\u91cf\u8c03\u5ea6\u5728\u4e0d\u540c\u7684\u8282\u70b9\u4e0a<\/td><\/tr><tr><td>ServiceSpreadingPriority<\/td><td>\u5bf9\u4e8e\u7ed9\u5b9a\u7684\u670d\u52a1\uff0c\u6b64\u7b56\u7565\u65e8\u5728\u786e\u4fddService\u7684Pods\u8fd0\u884c\u5728\u4e0d\u540c\u7684\u8282\u70b9\u4e0a\u3002\u603b\u7684\u7ed3\u679c\u662f\uff0cService\u5bf9\u5355\u4e2a\u8282\u70b9\u6545\u969c\u53d8\u5f97\u66f4\u6709\u5f39\u6027\u3002<\/td><\/tr><tr><td>InterPodAffinityPriority<\/td><td>\u57fa\u4e8e\u4eb2\u548c\u6027\uff08affinity\uff09\u548c\u53cd\u4eb2\u548c\u6027\uff08anti-affinity\uff09\u8ba1\u7b97\u5206\u6570<\/td><\/tr><tr><td>LeastRequestdPriority<\/td><td>\u504f\u5411\u4f7f\u7528\u8f83\u5c11\u8bf7\u6c42\u8d44\u6e90\u7684\u8282\u70b9\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u653e\u7f6e\u5728\u8282\u70b9\u4e0a\u7684Pod\u8d8a\u591a\uff0c\u8fd9\u4e9bPod\u4f7f\u7528\u7684\u8d44\u6e90\u8d8a\u591a\uff0c\u6b64\u7b56\u7565\u7ed9\u51fa\u7684\u6392\u540d\u5c31\u8d8a\u4f4e\u3002<\/td><\/tr><tr><td>BalancedRequestdPriority<\/td><td>\u8ba1\u7b97\u8282\u70b9\u4e0acpu\u548c\u5185\u5b58\u7684\u4f7f\u7528\u7387\uff0c\u4f7f\u7528\u7387\u6700\u5747\u8861\u7684\u8282\u70b9\u6700\u4f18<\/td><\/tr><tr><td>NodePreferAvoidPodsPriority<\/td><td>\u57fa\u4e8e\u8282\u70b9\u4e0a\u5b9a\u4e49\u7684\u6ce8\u91ca\uff08annotaion\uff09\u8bb0\u5206\uff0c\u6ce8\u91ca\u4e2d\u5982\u679c\u5b9a\u4e49\u4e86alpha.kubernetes.io\/preferAvoidPods\u5219\u4f1a\u7981\u7528ReplicationController\u6216\u8005\u5c06ReplicaSet\u7684pod\u8d44\u6e90\u5bf9\u8c61\u8c03\u5ea6\u5728\u8be5\u8282\u70b9\u4e0a<\/td><\/tr><tr><td>NodeAffinityPriority<\/td><td>\u57fa\u4e8e\u8282\u70b9\u4eb2\u548c\u6027\u8ba1\u7b97\u5206\u6570<\/td><\/tr><tr><td>TaintTolerationPriority<\/td><td>\u57fa\u4e8e\u6c61\u70b9\uff08taint\uff09\u548c\u5bb9\u5fcd\u5ea6\uff08toleration\uff09\u662f\u5426\u5339\u914d\u8ba1\u7b97\u5206\u6570<\/td><\/tr><tr><td>ImageLocalityPriority<\/td><td>\u57fa\u4e8e\u8282\u70b9\u4e0a\u662f\u5426\u5df2\u7ecf\u4e0b\u62c9\u4e86\u8fd0\u884cpod\u8d44\u6e90\u5bf9\u8c61\u7684\u955c\u50cf\u8ba1\u7b97\u5206\u6570<\/td><\/tr><tr><td>EvenPodsSpreadPriority<\/td><td>\u7528\u6765\u6307\u5b9a\u4e00\u7ec4\u7b26\u5408\u6761\u4ef6\u7684 Pod \u5728\u67d0\u4e2a\u62d3\u6251\u7ed3\u6784\u4e0a\u7684\u6253\u6563\u9700\u6c42<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4eceCNCF\u57fa\u91d1\u4f1a\u7684\u6210\u7acb\uff0c\u5230Kubernetes\u793e\u533a\u84ec\u52c3\u53d1\u5c55\uff0c\u5386\u7ecf6\u8f7d\uff0c17\u5e74\u5f02\u519b\u7a81\u8d77\uff0c\u5728mesos\u3001&hellip; <a href=\"https:\/\/99.feige5.com\/?p=29\" class=\"more-link read-more\" rel=\"bookmark\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">Kubernetes\u8c03\u5ea6\u7531\u6d45\u5165\u6df1\uff1a\u521d\u63a2<\/span><i class=\"fa fa-arrow-right\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-29","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"h-entry","9":"h-as-article"},"_links":{"self":[{"href":"https:\/\/99.feige5.com\/index.php?rest_route=\/wp\/v2\/posts\/29","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/99.feige5.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/99.feige5.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/99.feige5.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/99.feige5.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=29"}],"version-history":[{"count":0,"href":"https:\/\/99.feige5.com\/index.php?rest_route=\/wp\/v2\/posts\/29\/revisions"}],"wp:attachment":[{"href":"https:\/\/99.feige5.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/99.feige5.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/99.feige5.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}