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QoS 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\u90e8\u7f72\u5230\u4e91\u57fa\u7840\u8bbe\u65bd\u4e4b\u4e0a\u3002\u5f53\u4f01\u4e1a\u7684\u5e94\u7528\u8d8a\u6765\u8d8a\u591a\uff0c\u4e3a\u6bcf\u4e00\u79cd\u7c7b\u578b\u7684\u5e94\u7528\u5355\u72ec\u89c4\u5212\u96c6\u7fa4\uff0c\u5728\u8fd0\u7ef4\u6210\u672c\u548c\u8d44\u6e90\u6210\u672c\u4e0a\u5c06\u4e0d\u518d\u53ef\u884c\u3002\u4f01\u4e1a\u7ba1\u7406\u4e0d\u540c\u4e1a\u52a1\u7c7b\u578b\u7684\u65b9\u5f0f\u9010\u6b65\u4ece\u5207\u5206\u96c6\u7fa4\u5230\u5171\u4eab\u96c6\u7fa4\uff0c\u4ece\u5207\u5206\u8282\u70b9\u6c60\u5230\u5171\u4eab\u8282\u70b9\u6c60\u8fd9\u6837\u7684\u65b9\u5f0f\u6f14\u8fdb\u3002\u00a0\u4e0d\u540c\u4e1a\u52a1\u7c7b\u578b\u7684\u5de5\u4f5c\u8d1f\u8f7d\uff0c\u5bf9\u8c03\u5ea6\u7cfb\u7edf\u90fd\u6709\u4e0d\u540c\u7684\u7279\u6027\u9700\u6c42\uff0c\u8c03\u5ea6\u7cfb\u7edf\u5982\u4f55\u5728\u540c\u4e00\u4e2a\u96c6\u7fa4\u3001\u540c\u4e00\u4e2a\u8282\u70b9\u4e0a\u7f16\u6392\u4e0d\u540c\u7c7b\u578b\u7684\u5de5\u4f5c\u8d1f\u8f7d\uff0c\u89e3\u51b3\u597d\u5b83\u4eec\u5404\u81ea\u7684\u8fd0\u884c\u6548\u7387\u7a33\u5b9a\u6027\u3001\u5bf9 Kubernetes \u7ba1\u63a7\u9762\u6027\u80fd\u548c\u8282\u70b9\u8fd0\u884c\u65f6\u7a33\u5b9a\u6027\u7684\u8bc9\u6c42\uff0c\u662f\u73b0\u4ee3\u5316\u8c03\u5ea6\u7cfb\u7edf\u7684\u4e00\u4e2a\u91cd\u8981\u8bfe\u9898\u3002\u00a0<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042385332\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u00a0\u6210\u672c\u6548\u7387\u6210\u4e3a\u4f01\u4e1a\u5173\u6ce8\u7684\u91cd\u70b9\u65b9\u5411\uff0c\u8c03\u5ea6\u7cfb\u7edf\u662f\u5176\u4e2d\u7684\u5173\u952e\u4e00\u73af\u00a02020 \u5e74\u5f00\u59cb\uff0c\u53d7\u5168\u7403\u75ab\u60c5\u7684\u5f71\u54cd\uff0c\u4f01\u4e1a\u7684\u751f\u4ea7\u7ecf\u8425\u6d3b\u52a8\u6216\u591a\u3001\u6216\u5c11\u7684\u53d7\u5230\u6253\u51fb\u3002\u6709 65% \u7684\u4f01\u4e1a\u5f00\u59cb\u8003\u8651\u901a\u8fc7\u4e0a\u4e91\u7684\u65b9\u5f0f\u964d\u4f4e\u4f01\u4e1a IT \u4fe1\u606f\u5316\u6210\u672c\uff0c\u5df2\u7ecf\u4e0a\u4e91\u7684\u4f01\u4e1a\u5f00\u59cb\u901a\u8fc7\u66f4\u6df1\u5ea6\u7684\u4f18\u5316\u6765\u964d\u4f4e IT \u8d44\u6e90\u6210\u672c\u3002\u5728\u6210\u672c\u6cbb\u7406\u9886\u57df\uff0cFinOps \u7684\u7406\u5ff5\u9010\u6e10\u88ab\u4f01\u4e1a\u6240\u63a5\u53d7\uff0c\u5728 2021 \u5e74 CNCF\u300aFinOps Kubernetes Report\u300b\u7684\u8c03\u7814\u62a5\u544a\u663e\u793a\uff0c\u8fc1\u79fb\u81f3 Kubernetes \u5e73\u53f0\u540e\uff0c68% \u7684\u53d7\u8bbf\u8005\u8868\u793a\u6240\u5728\u4f01\u4e1a\u8ba1\u7b97\u8d44\u6e90\u6210\u672c\u6709\u6240\u589e\u52a0\uff0c36% \u7684\u53d7\u8bbf\u8005\u8868\u793a\u6210\u672c\u98d9\u5347\u8d85\u8fc7 20%\u3002\u00a0\u8fd9\u4e00\u8c03\u7814\u7ed3\u679c\u4e0e\u5927\u578b\u4f01\u4e1a\u7684\u5e94\u7528\u5b9e\u8df5\u622a\u7136\u4e0d\u540c\uff0cGoogle\u3001\u5fae\u8f6f\u3001Alibaba \u7b49\u56fd\u5185\u5916\u4f01\u4e1a\u5df2\u7ecf\u901a\u8fc7\u5b9e\u8df5\u8bc1\u660e\u4e86\u4f01\u4e1a\u5bb9\u5668\u5316\u5728\u6210\u672c\u4e0a\u7684\u5de8\u5927\u7ecf\u6d4e\u4ef7\u503c\u3002\u8fd9\u5176\u4e2d\u6700\u5173\u952e\u7684\u5dee\u522b\u5728\u4e8e\u5927\u578b\u4f01\u4e1a\u5185\u90e8\u901a\u5e38\u5efa\u8bbe\u6709\u5b8c\u5907\u7684\u6210\u672c\u6d1e\u5bdf\u80fd\u529b\uff0c\u77e5\u9053\u6210\u672c\u5f00\u9500\u5728\u54ea\u91cc\uff0c\u540c\u65f6\u5efa\u8bbe\u4e86\u5b8c\u5907\u800c\u5f3a\u5927\u7684\u8c03\u5ea6\u7cfb\u7edf\uff0c\u8ba9\u4f01\u4e1a\u7684\u8d44\u6e90\u5145\u5206\u7684\u88ab\u5229\u7528\u8d77\u6765\u3002\u5728\u8fd9\u5176\u4e2d\uff0c\u8c03\u5ea6\u7cfb\u7edf\u5982\u4f55\u5904\u7406\u597d\u4f01\u4e1a\u5185\u90e8\u95e8\u95f4\u7684 Quota \u7ba1\u7406\u3001\u8d44\u6e90\u501f\u7528\uff0c\u89e3\u51b3\u597d\u4e0a\u5c42\u5f39\u6027\u4f38\u7f29\u573a\u666f\u4e0e\u5e95\u5c42\u8282\u70b9\u6c60\u5f39\u6027\u4f38\u7f29\u4e4b\u95f4\u7684\u914d\u5408\uff0c\u5408\u7406\u7684\u89c4\u5212\u5e95\u5c42\u673a\u578b\u964d\u4f4e\u8d44\u6e90\u95f2\u7f6e\u7387\uff0c\u662f\u73b0\u4ee3\u5316\u4e91\u539f\u751f\u8c03\u5ea6\u7cfb\u7edf\u5fc5\u987b\u8981\u89e3\u51b3\u7684\u95ee\u9898\u3002Koordinator \u7684\u89e3\u6cd5\u548c\u8def\u5f84\u00a0\u6253\u9020\u4e0b\u4e00\u4ee3\u5bb9\u5668\u8c03\u5ea6\u7cfb\u7edf\uff0c\u6211\u4eec\u8fd9\u4e48\u505a\uff1a\u00a0<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042385333\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u00a0\u62e5\u62b1\u4e0a\u6e38\u6807\u51c6\uff0c\u6253\u9020\u57fa\u4e8e QoS 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QoS \u662f\u7cfb\u7edf\u7684\u4e00\u7b49\u516c\u6c11\uff0c\u4e0e\u4e1a\u754c\u5927\u591a\u6570\u8c03\u5ea6\u5668\u66f4\u591a\u7684\u5173\u6ce8\u7f16\u6392\u7ed3\u679c\uff08\u9759\u6001\uff09\u4e0d\u540c\uff0cKoordinator \u975e\u5e38\u5173\u6ce8 Pod \u8fd0\u884c\u65f6\u8d28\u91cf\uff08QoS\uff09\uff0c\u56e0\u4e3a\u5bf9\u4e8e\u8c03\u5ea6\u7cfb\u7edf\u7684\u7528\u6237\u800c\u8a00\uff0c\u8fd0\u884c\u65f6\u7a33\u5b9a\u6027\u662f\u5176\u4e1a\u52a1\u6210\u529f\u7684\u5173\u952e\u3002\u00a03. \u72b6\u6001\u81ea\u95ed\u73af\uff0cKoordinator 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\u62d3\u6251\u611f\u77e5\u53ef\u4ee5\u5728\u7528\u6237\u542f\u7528 static policy \u65f6\u517c\u5bb9\u8fd0\u884c\uff0c\u4e5f\u652f\u6301\u63a5\u7ba1\u7528\u6237\u5b58\u91cf\u7684\u8fd0\u884c\u65f6 Pod\uff0c\u65b9\u4fbf\u7528\u6237\u505a\u6280\u672f\u5347\u7ea7\u3002\u00a02. \u4e2d\u5fc3\u8c03\u5ea6 + \u5355\u673a\u8c03\u5ea6\u8054\u5408\u51b3\u7b56\uff0c\u4e2d\u5fc3\u8c03\u5ea6\u770b\u5230\u5168\u5c40\u89c6\u89d2\uff0c\u5176\u51b3\u7b56\u53ef\u4ee5\u627e\u5230\u96c6\u7fa4\u4e2d\u6700\u9002\u5408\u5e94\u7528\u9700\u6c42\u7684\u8282\u70b9\uff0c\u800c\u5355\u673a\u8c03\u5ea6\u53ef\u4ee5\u5728\u8282\u70b9\u4fa7\u505a\u4e00\u5b9a\u7684\u7075\u6d3b\u5ea6\uff0c\u4ee5\u5e94\u5bf9\u5e94\u7528\u7a81\u53d1\u7684\u6d41\u91cf\u98a0\u7c38\u3002\u00a03. \u8c03\u5ea6 + \u91cd\u8c03\u5ea6\u5bc6\u5207\u914d\u5408\uff0c\u8c03\u5ea6\u89e3\u51b3 Pod 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\u96c6\u7fa4\u7684\u8d44\u6e90\u6210\u672c\u6548\u7387\u3002\u00a0\u4f01\u4e1a\u63a5\u5165\u6df7\u90e8\u6700\u5927\u7684\u6311\u6218\u662f\u5982\u4f55\u8ba9\u5e94\u7528\u8dd1\u5728\u6df7\u90e8\u5e73\u53f0\u4e4b\u4e0a\uff0c\u8fd9\u7b2c\u4e00\u6b65\u7684\u95e8\u69db\u5f80\u5f80\u662f\u6700\u5927\u7684\u62e6\u8def\u864e\u3002Koordinator \u9488\u5bf9\u8fd9\u4e00\u95ee\u9898\uff0c\u7ed3\u5408\u5185\u90e8\u751f\u4ea7\u5b9e\u8df5\u7ecf\u9a8c\uff0c\u8bbe\u8ba1\u4e86\u201c\u53cc\u96f6\u4fb5\u5165\u201d\u7684\u6df7\u90e8\u8c03\u5ea6\u7cfb\u7edf\uff1a\u00a01. \u5bf9 Kubernetes \u5e73\u53f0\u7684\u96f6\u4fb5\u5165\u3002\u884c\u4e1a\u5185\u7684\u4eba\u5927\u591a\u77e5\u9053\uff0c\u5c06 Kubernetes \u5e94\u7528\u4e8e\u4f01\u4e1a\u5185\u90e8\u7684\u590d\u6742\u573a\u666f\u6df7\u90e8\u65f6\uff0c\u56e0\u4e3a\u8fd9\u6837\u6216\u8005\u90a3\u6837\u7684\u539f\u56e0\u603b\u662f\u9700\u8981\u5bf9 Kubernetes \u505a\u4e00\u5b9a\u91cf\u7684\u4fee\u6539\uff0c\u8fd9\u4e9b\u4fee\u6539\u5c06\u5bfc\u81f4\u7528\u6237\u4f7f\u7528\u6df7\u90e8\u65f6\u51fa\u73b0\u5382\u5546\u9501\u5b9a\u7684\u98ce\u9669\u3002\u800c Koordinator \u6df7\u90e8\u7cfb\u7edf\uff0c\u8bbe\u8ba1\u4e4b\u5904\u5373\u4fdd\u8bc1\u4e86\u4e0d\u9700\u8981\u5bf9\u793e\u533a\u539f\u751f Kubernetes \u505a\u4efb\u4f55\u4fee\u6539\uff0c\u53ea\u9700\u8981\u4e00\u952e\u5b89\u88c5 Koordinator \u7ec4\u4ef6\u5230\u96c6\u7fa4\u4e2d\uff0c\u65e2\u53ef\u4ee5\u4e3a Kubernetes \u96c6\u7fa4\u5e26\u6765\u6df7\u90e8\u7684\u80fd\u529b\u3002\u00a02. \u5bf9\u5de5\u4f5c\u8d1f\u8f7d\u7f16\u6392\u7cfb\u7edf\u7684\u96f6\u4fb5\u5165\u3002\u60f3\u50cf\u4e00\u4e0b\uff0c\u5728\u4f01\u4e1a\u5185\u90e8\u7684 Kubernetes \u96c6\u7fa4\u4e4b\u4e0a\u63d0\u4f9b\u6df7\u90e8\u80fd\u529b\u4e4b\u540e\uff0c\u5c06\u9762\u4e34\u7684\u95ee\u9898\u662f\u5982\u4f55\u5c06\u4f01\u4e1a\u7684\u5de5\u4f5c\u8d1f\u8f7d\u63a5\u5165\u8fdb\u6765\uff0c\u4ee5\u6df7\u90e8\u7684\u65b9\u5f0f\u8fd0\u884c\u3002\u5bf9\u5de5\u4f5c\u8d1f\u8f7d\u7ba1\u7406\u903b\u8f91\u7684\u4fb5\u5165\uff0c\u4e50\u89c2\u662f\u9700\u8981\u4ed8\u51fa\u989d\u5916\u7684\u9002\u914d\u6210\u672c\uff0c\u60b2\u89c2\u65f6\u662f\u8fd9\u4e9b\u6539\u52a8\u662f\u5728\u4e91\u5382\u5546\u63d0\u4f9b\u7684\u7ec4\u4ef6\u5185\uff08\u6bd4\u5982 kcm\uff09\uff0c\u5c06\u9762\u4e34\u5382\u5546\u9501\u5b9a\u6216\u8005\u4f9b\u5e94\u5546\u4e0d\u652f\u6301\u7684\u98ce\u9669\u3002\u00a0Koordinator \u9488\u5bf9\u5e94\u7528\u63a5\u5165\u5c42\u7684\u6539\u9020\u6210\u672c\uff0c\u8bbe\u8ba1\u4e86\u5355\u72ec\u7684\u5de5\u4f5c\u8d1f\u8f7d\u63a5\u5165\u5c42\uff0c\u5e2e\u52a9\u7528\u6237\u89e3\u51b3\u5de5\u4f5c\u8d1f\u8f7d\u63a5\u5165\u6df7\u90e8\u7684\u96be\u9898\uff0c\u7528\u6237\u53ea\u9700\u8981\u7ba1\u7406\u6df7\u90e8\u7684\u914d\u7f6e\u5373\u53ef\u7075\u6d3b\u7684\u8c03\u5ea6\u7f16\u6392\u54ea\u4e9b\u4efb\u52a1\u4ee5\u6df7\u90e8\u7684\u65b9\u5f0f\u8fd0\u884c\u5728\u96c6\u7fa4\u4e2d\uff0c\u975e\u5e38\u7684\u7b80\u5355\u4e14\u7075\u6d3b\u3002\u00a0\u6784\u5efa\u5de5\u4f5c\u8d1f\u8f7d\u6570\u636e\u5206\u6790\u4f53\u7cfb\uff0c\u63d0\u4f9b\u667a\u80fd\u7684\u4f18\u5316\u5efa\u8bae\u00a0\u8c03\u5ea6\u7cfb\u7edf\u4e0d\u6b62\u4e8e\u89e3\u51b3\u8c03\u5ea6\u3001\u91cd\u8c03\u5ea6\u3001\u5f39\u6027\u4f38\u7f29\u7b49\u9886\u57df\u95ee\u9898\uff0c\u4e00\u4e2a\u5b8c\u6574\u7684\u8c03\u5ea6\u7cfb\u7edf\uff0c\u9700\u8981\u5177\u5907\u57fa\u4e8e\u5386\u53f2\u6570\u636e\u9a71\u52a8\u7684\u81ea\u6211\u8fed\u4ee3\u6f14\u8fdb\u7684\u80fd\u529b\u3002\u4e3a\u5de5\u4f5c\u8d1f\u8f7d\u7684\u8fd0\u884c\u5386\u53f2\u72b6\u6001\u5efa\u7acb\u6570\u636e\u4ed3\u5e93\uff0c\u57fa\u4e8e\u8fd9\u4e9b\u8fd0\u884c\u5386\u53f2\u7684\u5927\u6570\u636e\u5206\u6790\uff0c\u6301\u7eed\u7684\u6539\u8fdb\u5e94\u7528\u95f4\u5728\u5404\u4e2a\u7ef4\u5ea6\u7684\u7684\u4eb2\u548c\u3001\u4e92\u65a5\u5173\u7cfb\uff0c\u624d\u80fd\u5728\u7528\u6237\u8fd0\u884c\u65f6\u4f53\u9a8c\u3001\u96c6\u7fa4\u8d44\u6e90\u5229\u7528\u6548\u7387\u540c\u65f6\u8fbe\u5230\u6700\u4f73\u72b6\u6001\u3002\u00a0Koordinator \u9488\u5bf9\u667a\u80fd\u5316\u8c03\u5ea6\u7684\u8bbe\u8ba1\u601d\u8def\u5982\u4e0b\uff1a\u00a01. \u667a\u80fd\u8d44\u6e90\u8d85\u5356\uff0cKoordinator \u9996\u5148\u89e3\u51b3\u7684\u662f\u8282\u70b9\u8d44\u6e90\u5145\u5206\u5229\u7528\u7684\u95ee\u9898\uff0c\u901a\u8fc7\u5206\u6790\u8282\u70b9\u5bb9\u5668\u7684\u8fd0\u884c\u72b6\u6001\u8ba1\u7b97\u53ef\u8d85\u5356\u7684\u8d44\u6e90\u91cf\uff0c\u5e76\u7ed3\u5408 QoS \u7684\u5dee\u5f02\u5316\u8bc9\u6c42\u5c06\u8d85\u5356\u7684\u8d44\u6e90\u5206\u914d\u7ed9\u4e0d\u540c\u7c7b\u578b\u7684\u4efb\u52a1\uff0c\u5927\u5e45\u63d0\u9ad8\u96c6\u7fa4\u7684\u8d44\u6e90\u5229\u7528\u7387\u3002\u00a0<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042385334\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u00a02. QoS \u611f\u77e5\u7684\u91cd\u8c03\u5ea6\uff0c\u5f53\u8282\u70b9\u4e2d Pod \u7684\u8fd0\u884c\u65f6 QoS \u4e0d\u7b26\u5408\u9884\u671f\u65f6\uff0cKoordinator \u5c06\u667a\u80fd\u51b3\u7b56\u6291\u5236\u66f4\u4f4e\u4f18\u5148\u7ea7\u7684\u4efb\u52a1\u4ea6\u6216\u662f\u8fc1\u79fb\u5f53\u524d\u6536\u5230\u5e72\u6270\u7684\u5bb9\u5668\uff0c\u4ece\u800c\u89e3\u51b3\u5e94\u7528 QoS \u4e0d\u6ee1\u8db3\u5bfc\u81f4\u7684\u95ee\u9898\u3002\u00a03. \u66f4\u591a\u7684\u80fd\u529b\u656c\u8bf7\u671f\u5f85\uff0c\u672a\u6765\u8fd9\u91cc\u5c06\u662f Koordinator \u91cd\u70b9\u8fed\u4ee3\u7684\u9886\u57df\u3002\u00a0\u56f4\u7ed5\u7740\u8fd9\u6761\u8def\uff0c\u5728 0.6 \u7248\u672c\u4e2d\uff0c\u793e\u533a\u5e26\u6765\u4e86\u4e0b\u8ff0\u66f4\u65b0\u3002\u7248\u672c\u529f\u80fd\u7279\u6027\u89e3\u8bfb\u00a0Koordinator \u8fd1\u671f\u53d1\u5e03\u4e86 v0.6 \u7248\u672c\uff0c\u5305\u542b\u4e86\u4ee5\u4e0b\u589e\u5f3a\u3001\u65b0\u589e\u7279\u6027\uff1a\u00a01. \u65b0\u7248\u672c\u8fdb\u4e00\u6b65\u5b8c\u5584\u4e86 CPU \u7cbe\u7ec6\u5316\u7f16\u6392\u80fd\u529b\uff0c\u66f4\u597d\u7684\u517c\u5bb9\u539f\u751f\u7528\u6cd5\u3002\u00a02. \u5728 Kubernetes \u4e4b\u4e0a\u5f15\u5165\u8d44\u6e90\u9884\u7559\u7684\u539f\u5b50\u80fd\u529b\uff08Reservation\uff09\uff0c\u8d44\u6e90\u9884\u7559\u5728\u5bb9\u91cf\u7ba1\u7406\u3001\u788e\u7247\u4f18\u5316\u3001\u8c03\u5ea6\u6210\u529f\u7387\u4f18\u5316\u7b49\u65b9\u9762\u6709\u91cd\u8981\u4f5c\u7528\u3002\u00a03. \u63d0\u4f9b\u4e86 Pod \u817e\u632a\u7684\u80fd\u529b\uff08PodMigrationJob\uff09\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u53ef\u9760\u5730\u8fc1\u79fb\u6709\u95ee\u9898\u5b9e\u4f8b\u3001\u6574\u7406\u96c6\u7fa4\u8d44\u6e90\u788e\u7247\u7b49\u3002\u00a04. \u53d1\u5e03\u4e86\u5168\u65b0\u7684 Descheduler Framework\uff0c\u652f\u6301\u7528\u6237\u7075\u6d3b\u7684\u6269\u5c55\u81ea\u5b9a\u4e49\u63d2\u4ef6\uff0c\u7ed3\u5408 PodMigrationJob \u5b9e\u73b0\u5b89\u5168\u3001\u53ef\u9760\u3001\u7075\u6d3b\u7684\u91cd\u8c03\u5ea6\u3002\u00a05. \u6b64\u5916\uff0c\u8be5\u7248\u672c\u5305\u542b\u4e86 GPU\u3001Gang\u3001Elastic Quota \u76f8\u5173\u7684\u8bbe\u8ba1\u3002\u00a0\u66f4\u52a0\u5b8c\u5584\u7684 CPU \u7cbe\u7ec6\u5316\u7f16\u6392 \u00a0&#8211; Fine-grained CPU Orchestration\u00a0\u968f\u7740\u8d44\u6e90\u5229\u7528\u7387\u7684\u63d0\u5347\u8fdb\u5165\u5230\u6df7\u90e8\u7684\u6df1\u6c34\u533a\uff0c\u9700\u8981\u5bf9\u8d44\u6e90\u8fd0\u884c\u65f6\u7684\u6027\u80fd\u505a\u66f4\u6df1\u5165\u7684\u8c03\u4f18\uff0c\u66f4\u7cbe\u7ec6\u7684\u8d44\u6e90\u7f16\u6392\u53ef\u4ee5\u66f4\u597d\u7684\u4fdd\u969c\u8fd0\u884c\u65f6\u8d28\u91cf\uff0c\u4ece\u800c\u901a\u8fc7\u6df7\u90e8\u5c06\u5229\u7528\u7387\u63a8\u5411\u66f4\u9ad8\u7684\u6c34\u5e73\u3002\u00a0\u6211\u4eec\u628a Koordinator QoS \u5728\u7ebf\u5e94\u7528 LS \u7c7b\u578b\u505a\u4e86\u66f4\u7ec6\u81f4\u7684\u5212\u5206\uff0c\u5206\u4e3a LSE\u3001LSR \u548c LS \u4e09\u79cd\u7c7b\u578b\u3002\u62c6\u5206\u540e\u7684 QoS \u7c7b\u578b\u5177\u5907\u66f4\u9ad8\u7684\u9694\u79bb\u6027\u548c\u8fd0\u884c\u65f6\u8d28\u91cf\uff0c\u901a\u8fc7\u8fd9\u6837\u7684\u62c6\u5206\uff0c\u6574\u4e2a Koordinator QoS \u8bed\u4e49\u66f4\u52a0\u7cbe\u786e\u548c\u5b8c\u6574\uff0c\u5e76\u4e14\u517c\u5bb9 K8s \u5df2\u6709\u7684 QoS \u8bed\u4e49\u3002\u5e76\u4e14\u6211\u4eec\u9488\u5bf9 Koordinator QoS\uff0c\u8bbe\u8ba1\u4e86\u4e00\u5957\u4e30\u5bcc\u7075\u6d3b\u7684 CPU \u7f16\u6392\u7b56\u7565\uff0c\u5982\u4e0b\u8868\u6240\u793a\uff1a\u00a0<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042385335\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u5927\u5bb6\u53ef\u4ee5\u7ed3\u5408\u4e0b\u56fe\uff0c\u53ef\u4ee5\u66f4\u5bb9\u6613\u7406\u89e3\u8fd9\u4e00\u5957 QoS \u548c\u7f16\u6392\u7b56\u7565\uff1a\u00a0<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042385336\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u00a0\u5728\u4e4b\u524d\u7684\u300a\u4e91\u539f\u751f\u6df7\u90e8\u7cfb\u7edf Koordinator \u67b6\u6784\u8be6\u89e3\u300b\u4e2d\uff0c\u6211\u4eec\u5411\u5927\u5bb6\u4ecb\u7ecd\u8fc7\u5f53\u65f6\u6b63\u5728\u5b9e\u73b0\u00a0CPU \u7cbe\u7ec6\u5316\u7f16\u6392\u65b9\u6848[2]\u8bbe\u8ba1\uff0c\u5e76\u5728 Koordinator v0.5 \u7248\u672c\u4e2d\uff0c\u5b9e\u73b0\u4e86\u57fa\u672c\u7684 CPU \u7cbe\u7ec6\u5316\u7f16\u6392\u80fd\u529b\uff0c\u7528\u6237\u53ef\u4ee5\u5728 Pod \u4e2d\u65b0\u589e Koordinator CPU \u7cbe\u7ec6\u5316\u7f16\u6392\u534f\u8bae\uff0c\u6307\u5b9a\u671f\u671b\u7684 CPU \u7f16\u6392\u7b56\u7565\u6307\u5bfc koord-scheduler \u5728\u8c03\u5ea6\u65f6\u9009\u62e9\u6700\u9002\u5408\u7684\u8282\u70b9\u3002koord-scheduler \u5728\u5206\u914d\u65f6\u4f18\u5148\u8003\u8651 NUMA \u67b6\u6784\uff0c\u4f7f\u5f97\u5206\u914d\u7684 CPU \u5c3d\u53ef\u80fd\u4e0d\u8de8 NUMA Node\/Socket\uff0c\u5e76\u4e14\u4e3a\u4e86\u5c3d\u53ef\u80fd\u907f\u514d NUMA Node\/Socket \u7ef4\u5ea6\u4ea7\u751f\u788e\u7247\uff0c\u9ed8\u8ba4\u4f7f\u7528 MostAllocated \u7b56\u7565\u9009\u62e9\u5269\u4f59 CPU \u5c11\u7684 NUMA Node\u3002\u00a0\u5728 Koordinator v0.6 \u4e2d\uff0c\u8fdb\u4e00\u6b65\u5b8c\u5584\u4e86 CPU \u7cbe\u7ec6\u5316\u7f16\u6392\u80fd\u529b\uff0c\u66f4\u597d\u7684\u652f\u6301\u4e86\u5ef6\u8fdf\u654f\u611f\u578b\u5e94\u7528\u5bf9\u4e8e\u5e72\u6270\u9694\u79bb\u7684\u9700\u6c42\u4ee5\u53ca\u66f4\u597d\u7684\u517c\u5bb9\u539f\u751f\u7528\u6cd5\uff1a\u00a01. \u5f53 Koordinator QoS \u4e3a LSE\/LSR \u7c7b\u578b\u7684 Pod \u6ca1\u6709\u8bbe\u7f6e CPU \u7cbe\u7ec6\u5316\u7f16\u6392\u534f\u8bae\u65f6\uff0ckoord-scheduler \u4f7f\u7528\u914d\u7f6e\u7684\u9ed8\u8ba4 CPU \u7f16\u6392\u7b56\u7565\u5206\u914d CPU\u3002\u00a02. \u65b0\u589e\u652f\u6301\u00a0PCPULevel\u00a0\u6216\u8005 NUMANodeLevel \u4e24\u79cd CPU \u4e92\u65a5\u7b56\u7565(CPU Exclusive Policy)\u3002koord-scheduler \u4f1a\u6839\u636e\u7528\u6237\u7684\u914d\u7f6e\uff0c\u5c3d\u91cf\u7684\u4fdd\u969c\u5177\u6709\u76f8\u540c\u4e92\u65a5\u7b56\u7565\u7684 Pod \u5728\u7269\u7406\u6838\u7ef4\u5ea6(PCPULevel)\u6216\u8005 NUMA Node \u7ef4\u5ea6(NUMANodeLevel)\u4e92\u65a5\u3002\u8be5\u673a\u5236\u53ef\u4ee5\u6709\u6548\u7684\u907f\u514d CPU \u5bc6\u96c6\u578b\u5e94\u7528\u7684\u76f8\u4e92\u5e72\u6270\u3002\u00a03. \u652f\u6301 Node CPU Orchestration API\uff0c\u96c6\u7fa4\u7ba1\u7406\u5458\u6216\u8005\u96c6\u7fa4\u8d44\u6e90\u8fd0\u8425\u53ef\u4ee5\u901a\u8fc7\u8be5 API \u7ea6\u675f\u8282\u70b9\u7684 CPU \u7f16\u6392\u7b56\u7565\u3002\u00a0\u652f\u6301\u901a\u8fc7\u6807\u7b7e node.koordinator.sh\/cpu-bind-policy \u7ea6\u675f\u8c03\u5ea6\u65f6\u7684 CPU \u7ed1\u5b9a\u903b\u8f91\u3002\u5f53\u524d\u652f\u6301\u7684\u7b56\u7565 FullPCPUsOnly \u8868\u793a\u8981\u6c42 koord-scheduler \u5728\u5206\u914d CPU \u65f6\uff0c\u5206\u914d\u7684 CPU \u6570\u91cf\u5fc5\u987b\u5206\u914d\u5728\u76f8\u540c\u7684\u4e00\u6279\u7269\u7406\u6838\u4e0a\uff0c\u5e76\u4e14\u5728 SMT \u67b6\u6784\u4e0b(\u4f8b\u5982\u5e38\u89c1\u7684 x86 \u67b6\u6784) \u8981\u6c42 Pod \u7684 CPU \u8bf7\u6c42\u6570\u91cf\u5fc5\u987b\u662f\u5355\u4e2a\u7269\u7406\u6838\u5185\u865a\u62df\u903b\u8f91\u6838\u7684\u500d\u6570\u3002FullPCPUsOnly \u4e0e Kubernetes \u652f\u6301\u7684 kubelet CPU Manager Policy Option full-pcpus-only=true \u7b49\u4ef7\u3002\u00a0\u652f\u6301\u901a\u8fc7\u6807\u7b7e node.koordinator.sh\/numa-allocate-strategy \u6307\u5b9a NUMA Node \u7ef4\u5ea6\u7684\u5206\u914d\u9009\u62e9\u7b56\u7565\uff0c\u5982\u679c\u8bbe\u7f6e MostAllocated\uff0c\u671f\u671b koord-scheduler \u4f18\u5148\u4ece\u5269\u4f59 CPU \u6700\u5c11\u7684 NUMA Node\u4e0a\u5206\u914d\uff1b\u5982\u679c\u8bbe\u7f6e LeastAllocated\uff0c\u671f\u671b koord-scheduler \u4f18\u5148\u4ece\u5269\u4f59 CPU \u6700\u591a\u7684 NUMA Node \u4e0a\u5206\u914d\u3002\u9ed8\u8ba4\u4f7f\u7528 MostAllocated \u7b56\u7565\u3002\u8be5\u914d\u7f6e\u8fd8\u4f1a\u4f5c\u7528\u5728\u540e\u7eed\u5c06\u8981\u652f\u6301\u7684 NUMA Topology \u8c03\u5ea6\u80fd\u529b\u30024. \u5355\u673a\u4fa7 koordlet \u589e\u5f3a\u4e86\u5bf9 LSE QoS \u7684\u652f\u6301\uff0c\u4f8b\u5982 koordlet \u542f\u7528 CPU Suppress \u673a\u5236\u65f6\uff0c\u5728\u4e3a BE Pod \u5206\u914d CPU \u65f6\u4f1a\u6392\u9664\u6389 LSE Pod \u7ed1\u5b9a\u7684 CPU\uff0c\u5b9e\u73b0 LSE QoS \u7684\u5f3a\u4fdd\u969c\u3002\u00a0\u8d44\u6e90\u9884\u7559 &#8211; Reservation\u00a0\u5728 Koordinator v0.6 \u4e2d \uff0c\u6211\u4eec\u57fa\u4e8e\u539f\u6709 v0.5 \u7248\u672c\u5b8c\u6210\u7684\u8d44\u6e90\u9884\u7559 API \u8bbe\u8ba1\u65b9\u6848[3]\uff0c\u5728\u4e0d\u4fb5\u5165 Kubernetes \u5df2\u6709\u7684\u673a\u5236\u548c\u4ee3\u7801\u524d\u63d0\u4e0b\uff0c\u5b9e\u73b0\u4e86\u8d44\u6e90\u9884\u7559\u7684\u539f\u5b50\u80fd\u529b(Reservation)\u3002\u8d44\u6e90\u9884\u7559\u5728\u5bb9\u91cf\u7ba1\u7406\u3001\u788e\u7247\u4f18\u5316\u3001\u8c03\u5ea6\u6210\u529f\u7387\u548c\u91cd\u8c03\u5ea6\u7b49\u573a\u666f\u6709\u91cd\u8981\u4f5c\u7528\uff1a\u00a01. \u5f53\u6709\u91cd\u8981\u7684\u5de5\u4f5c\u8d1f\u8f7d\u5728\u672a\u6765\u67d0\u6bb5\u65f6\u95f4\u9700\u8981\u8d44\u6e90\u65f6\uff0c\u53ef\u4ee5\u63d0\u524d\u9884\u7559\u8d44\u6e90\u6ee1\u8db3\u9700\u6c42\u3002\u00a02. \u7528\u6237\u5728 PaaS \u4e0a\u53d1\u8d77\u6269\u5bb9\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u8d44\u6e90\u9884\u7559\u80fd\u529b\u5c1d\u8bd5\u9884\u7559\uff0c\u9884\u7559\u6210\u529f\u540e\u53d1\u8d77\u6269\u5bb9\uff0c\u4fdd\u969c PaaS \u7684 SLA\u3002\u00a03. \u7528\u6237\u5728 PaaS \u4e0a\u53d1\u5e03\u65f6\uff0c\u5982\u679c\u5e94\u7528\u91c7\u7528\u4e86\u6eda\u52a8\u53d1\u5e03\u7684\u80fd\u529b\uff0c\u53ef\u4ee5\u901a\u8fc7\u8d44\u6e90\u9884\u7559\u4fdd\u7559\u5373\u5c06\u9500\u6bc1\u7684 Pod \u6301\u6709\u7684\u8d44\u6e90\uff0c\u5728\u6eda\u52a8\u53d1\u5e03\u65f6\uff0c\u65b0\u5efa\u7684 Pod \u53ef\u4ee5\u590d\u7528\u9884\u7559\u4e0b\u6765\u7684\u539f\u6709\u8d44\u6e90\uff0c\u80fd\u591f\u6709\u6548\u63d0\u9ad8\u6eda\u52a8\u53d1\u5e03\u7684\u6210\u529f\u7387\u3002\u00a04. \u788e\u7247\u4f18\u5316\u573a\u666f\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u8d44\u6e90\u9884\u7559\u5360\u4f4f\u7a7a\u95f2\u7684\u788e\u7247\u8d44\u6e90\uff0c\u5e76\u628a\u53ef\u88ab\u6574\u7406\u7684 Pod \u8fc1\u79fb\u5230\u8fd9\u4e9b\u8282\u70b9\u3002\u00a05. \u91cd\u8c03\u5ea6\u65f6\u5728\u53d1\u8d77\u9a71\u9010\u524d\uff0c\u5148\u5c1d\u8bd5\u9884\u7559\u8d44\u6e90\uff0c\u9884\u7559\u6210\u529f\u540e\u53d1\u8d77\u9a71\u9010\uff0c\u907f\u514d\u9a71\u9010\u540e\u65e0\u8d44\u6e90\u53ef\u7528\u5f71\u54cd\u5e94\u7528\u7684\u53ef\u7528\u6027\u3002\u00a0<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042385337\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u00a0Koordinator Reservation API \u5141\u8bb8\u7528\u6237\u4e0d\u4fee\u6539 Pod Spec \u6216\u8005\u5b58\u91cf\u7684 Workload(\u4f8b\u5982 Deployment, StatefulSet\uff09\u5373\u53ef\u4ee5\u9884\u7559\u8d44\u6e90\u3002\u57fa\u672c\u6d41\u7a0b\u5982\u4e0b\uff1a\u00a01.\u00a0\u5f53\u7528\u6237\u671f\u671b\u9884\u7559\u8d44\u6e90\u65f6\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a Reservation CRD \u5b9e\u4f8b\uff0c\u901a\u8fc7 ReservationSpec.Template \u58f0\u660e\u672a\u6765\u65b0\u5efa\u7684 Pod Spec \uff0c \u5e76\u58f0\u660e\u9884\u7559\u8d44\u6e90\u7684\u6240\u6709\u6743\uff0c\u5373\u586b\u5199 ReservationSpec.Owners \u5b57\u6bb5\u3002\u00a02. koord-scheduler \u00a0watch \u5230\u65b0\u5efa\u7684 Reservation \u540e\uff0c\u4f1a\u6839\u636e ReservationSpec \u4e2d\u7684\u4fe1\u606f\u6a21\u62df\u4e3a\u4e00\u4e2a Pod(\u79f0\u4e3a ReservePod) \u8fdb\u884c\u8c03\u5ea6\u627e\u5230\u5408\u9002\u7684\u8282\u70b9\uff0c\u5e76\u628a\u8c03\u5ea6\u7684\u7ed3\u679c\u66f4\u65b0\u56de ReservationStatus\u3002\u00a03. \u7528\u6237\u521b\u5efa\u65b0\u7684Pod\uff0ckoord-scheduler \u4f18\u5148\u4e3a\u8be5 Pod \u5bfb\u627e\u5408\u9002\u7684 Reservation \u5b9e\u4f8b\uff0ckoord-scheduler \u4f1a\u6839\u636e Reservation \u4e2d\u8bb0\u5f55\u7684\u8d44\u6e90\u6240\u6709\u6743\uff0c\u901a\u8fc7 label selector \u673a\u5236\u6216\u8005\u5224\u65ad controller ownerReference \u7684\u5f62\u5f0f\u5224\u65ad\u65b0 Pod \u662f\u5426\u4e0e Reservation \u5339\u914d\uff0c\u5982\u679c\u5339\u914d\uff0c\u5219\u4f1a\u8fdb\u884c\u9884\u5904\u7406\uff0c\u4fdd\u969c\u540e\u7eed\u7684 Reservation \u8d44\u6e90\u5b9a\u5411\u7ed9\u8be5 Pod \u4f7f\u7528\u3002\u5e76\u5728\u6253\u5206\u9636\u6bb5\u5f71\u54cd\u8c03\u5ea6\u903b\u8f91\uff0c\u4f18\u5148\u5b9e\u73b0 Reservation \u5bf9\u8c61\u5360\u7528\u7684\u8d44\u6e90\u3002\u00a04. Pod bind \u65f6\u66f4\u65b0 ReservationStatus\uff0c\u8bb0\u5f55\u8be5 Reservation \u88ab\u54ea\u4e9b Pod \u6d88\u8d39\u4e86\u3002\u00a05. \u5f53 Pod \u9500\u6bc1\u65f6\uff0ckoord-scheduler \u4f1a\u66f4\u65b0 ReservationStatus \u5220\u9664 Pod \u6d88\u8d39\u8bb0\u5f55\uff0c\u8be5 Reservation \u4f1a\u88ab\u7ee7\u7eed\u4f7f\u7528\u76f4\u5230\u8d85\u8fc7\u8bbe\u5b9a\u7684\u8fc7\u671f\u65f6\u95f4\uff08BTW: \u9ed8\u8ba4 24 \u5c0f\u65f6\u8fc7\u671f\uff0c\u5982\u679c TTL \u8bbe\u7f6e\u4e3a 0\uff0c\u8868\u793a\u4e0d\u8fc7\u671f\uff09\u3002\u00a0Quick Start\u00a01. \u4f7f\u7528\u4e0b\u9762\u7684 YAML \u6587\u4ef6\u521b\u5efa Reservation reservation-demo\u00a0apiVersion: scheduling.koordinator.sh\/v1alpha1<br \/>kind: Reservation<br \/>metadata:<br \/>  name: reservation-demo<br \/>spec:<br \/>  template: # set resource requirements<\/p>\n<pre><code>namespace: default\nspec:\n  containers:\n    - args:\n      - '-c'\n      - '1'\n      command:\n        - stress\n      image: polinux\/stress\n      imagePullPolicy: Always\n      name: stress\n      resources: # reserve 500m cpu and 800Mi memory\n        requests:\n          cpu: 500m\n          memory: 800Mi\n  schedulerName: koord-scheduler # use koord-scheduler<\/code><\/pre>\n<p>owners: # set the owner specifications<\/p>\n<pre><code>- object: # owner pods whose name is `default\/pod-demo-0`\n    name: pod-demo-0\n    namespace: default<\/code><\/pre>\n<p>ttl: 1h # set the TTL, the reservation will get expired 1 hour later\u00a02. \u89c2\u5bdf\u5e76\u7b49\u5f85 Reservation reservation-demo \u53d8\u4e3a Available \u72b6\u6001\u00a0$ kubectl create -f reservation-demo.yaml<br \/>reservation.scheduling.koordinator.sh\/reservation-demo created<br \/>$ kubectl get reservation <br \/>NAME                     PHASE    AGE<br \/>reservation-demo   Available  3h16m\u00a03. \u4f7f\u7528\u4e0b\u9762\u7684\u6587\u4ef6\u521b\u5efa Pod pod-demo-0\u00a0apiVersion: v1<br \/>kind: Pod<br \/>metadata:<br \/>  name: pod-demo-0 # match the owner spec of <code>reservation-demo<\/code><br \/>spec:<br \/>  containers:<\/p>\n<pre><code>- args:\n    - '-c'\n    - '1'\n  command:\n    - stress\n  image: polinux\/stress\n  imagePullPolicy: Always\n  name: stress\n  resources:\n    limits:\n      cpu: '1'\n      memory: 1Gi\n    requests:\n      cpu: 200m\n      memory: 400Mi<\/code><\/pre>\n<p>restartPolicy: Always<br \/>  schedulerName: koord-scheduler # use koord-scheduler\u00a0$ kubectl create -f pod-demo-0.yaml<br \/>pod\/pod-demo-0 created\u00a04. \u68c0\u67e5 Pod \u00a0pod-demo-0 \u7684\u8c03\u5ea6\u7ed3\u679c\u00a0$ kubectl get pod pod-demo-0 -o wide<br \/>NAME         READY   STATUS    RESTARTS   AGE   IP            NODE     NOMINATED NODE   READINESS GATES<br \/>pod-demo-0   1\/1     Running   0          32s   10.17.0.123   node-0   &lt;none&gt;           &lt;none&gt;\u00a0pod-demo-0 \u88ab\u8c03\u5ea6\u5230 \u4e0e Reservation reservation-demo \u76f8\u540c\u7684\u8282\u70b9\u3002\u00a05. \u68c0\u67e5 Reservation reservation-demo \u7684\u72b6\u6001.\u00a0$ kubectl get reservation reservation-demo -oyaml<br \/>apiVersion: scheduling.koordinator.sh\/v1alpha1<br \/>kind: Reservation<br \/>metadata:<br \/>  name: reservation-demo<br \/>  creationTimestamp: &#8220;YYYY-MM-DDT05:24:58Z&#8221;<br \/>  uid: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx<br \/>  &#8230;<br \/>spec:<br \/>  owners:<\/p>\n<ul>\n<li>\n<p>object:<br \/>  name: pod-demo-0<br \/>  namespace: default<br \/>  template:<br \/>spec:<br \/>  containers:<\/p>\n<ul>\n<li>\n<p>args:<\/p>\n<ul>\n<li>-c<\/li>\n<li>&#8220;1&#8221;<br \/>command:<\/li>\n<li>stress<br \/>image: polinux\/stress<br \/>imagePullPolicy: Always<br \/>name: stress<br \/>resources:<br \/>requests:<br \/>  cpu: 500m<br \/>  memory: 800Mi<br \/>schedulerName: koord-scheduler<br \/>ttl: 1h<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>status:<br \/>  allocatable: # total reserved<\/p>\n<pre><code>cpu: 500m\nmemory: 800Mi<\/code><\/pre>\n<p>allocated: # current allocated<\/p>\n<pre><code>cpu: 200m\nmemory: 400Mi<\/code><\/pre>\n<p>conditions:<\/p>\n<ul>\n<li>lastProbeTime: &#8220;YYYY-MM-DDT05:24:58Z&#8221;<br \/>lastTransitionTime: &#8220;YYYY-MM-DDT05:24:58Z&#8221;<br \/>reason: Scheduled<br \/>status: &#8220;True&#8221;<br \/>type: Scheduled<\/li>\n<li>lastProbeTime: &#8220;YYYY-MM-DDT05:24:58Z&#8221;<br \/>lastTransitionTime: &#8220;YYYY-MM-DDT05:24:58Z&#8221;<br \/>reason: Available<br \/>status: &#8220;True&#8221;<br \/>type: Ready<br \/>  currentOwners:<\/li>\n<li>name: pod-demo-0<br \/>namespace: default<br \/>uid: yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy<br \/>  nodeName: node-0<br \/>  phase: Available\u00a0\u6211\u4eec\u53ef\u4ee5\u89c2\u5bdf\u5230 Reservation reservation-demo \u9884\u7559\u4e86 500m CPU \u548c 800 Mi \u5185\u5b58\uff0c\u5e76\u4e14 Pod pod-demo-0\u4ece Reservation reservation-demo\u4e2d\u5206\u914d\u4e86 200m CPU \u548c 400Mi \u5185\u5b58\u3002\u00a06. \u6e05\u7406 Reservation reservation-demo.\u00a0$ kubectl delete reservation reservation-demo<\/li>\n<\/ul>\n<p>reservation.scheduling.koordinator.sh &#8220;reservation-demo&#8221; deleted<br \/>$ kubectl get pod pod-demo-0<br \/>NAME         READY   STATUS    RESTARTS   AGE<br \/>pod-demo-0   1\/1     Running   0          110s\u00a0\u53ef\u4ee5\u89c2\u5bdf\u5230 Reservation \u5220\u9664\u540e\uff0cPod pod-demo-0 \u8fd8\u5728\u8fd0\u884c\u4e2d\u3002\u00a0\u5b89\u5168\u53ef\u9760\u7684 Pod \u817e\u632a\u8fc1\u79fb\u673a\u5236 &#8211; PodMigrationJob\u00a0\u817e\u632a\u8fc1\u79fb Pod \u662f\u8bb8\u591a\u7ec4\u4ef6\uff08\u4f8b\u5982 descheduler\uff09\u6240\u4f9d\u8d56\u7684\u91cd\u8981\u529f\u80fd\uff0c\u53ef\u7528\u4e8e\u4f18\u5316\u8c03\u5ea6\u6216\u5e2e\u52a9\u89e3\u51b3\u5de5\u4f5c\u8d1f\u8f7d\u8fd0\u884c\u65f6\u8d28\u91cf\u95ee\u9898\u3002\u6211\u4eec\u8ba4\u4e3a Pod \u8fc1\u79fb\u662f\u4e00\u4e2a\u590d\u6742\u7684\u8fc7\u7a0b\uff0c\u6d89\u53ca\u5230\u5ba1\u8ba1\u3001\u8d44\u6e90\u5206\u914d\u3001\u5e94\u7528\u542f\u52a8\u7b49\u6b65\u9aa4\uff0c\u8fd8\u5939\u6742\u7740\u5e94\u7528\u7684\u53d1\u5e03\u5347\u7ea7\u3001\u6269\u5bb9\/\u7f29\u5bb9\u573a\u666f\u548c\u96c6\u7fa4\u7ba1\u7406\u5458\u7684\u8d44\u6e90\u8fd0\u7ef4\u64cd\u4f5c\u3002\u56e0\u6b64\uff0c\u5982\u4f55\u7ba1\u7406 Pod \u8fc1\u79fb\u8fc7\u7a0b\u7684\u7a33\u5b9a\u6027\u98ce\u9669\uff0c\u4fdd\u8bc1\u5e94\u7528\u4e0d\u4f1a\u56e0\u4e3a Pod \u7684\u8fc1\u79fb\u5f71\u54cd\u53ef\u7528\u6027\uff0c\u662f\u4e00\u4e2a\u975e\u5e38\u5173\u952e\u7684\u5fc5\u987b\u89e3\u51b3\u7684\u95ee\u9898\u3002\u00a0\u4e3a\u4e86\u8ba9\u5927\u5bb6\u66f4\u597d\u7684\u7406\u89e3\uff0c\u4e3e\u51e0\u4e2a\u573a\u666f\uff1a\u00a01. \u793e\u533a\u7684\u91cd\u8c03\u5ea6\u5668\u5185\u7f6e\u7684\u591a\u4e2a\u91cd\u8c03\u5ea6\u7b56\u7565\u6839\u636e\u81ea\u8eab\u903b\u8f91\u5224\u65ad\u67d0\u4e2a Pod \u662f\u5426\u8981\u88ab\u8fc1\u79fb\uff0c\u9700\u8981\u8fc1\u79fb\u65f6\u8c03\u7528 K8s Eviction API \u00a0\u53d1\u8d77\u9a71\u9010\u3002\u4f46\u662f\u8fd9\u4e2a\u8fc7\u7a0b\u5e76\u4e0d\u5173\u6ce8\u88ab\u9a71\u9010\u7684 Pod \u5728\u5c06\u6765\u662f\u5426\u53ef\u4ee5\u5206\u914d\u5230\u8d44\u6e90\u3002\u56e0\u6b64\u5b58\u5728\u5927\u91cf Pod \u88ab\u9a71\u9010\u540e\u56e0\u4e3a\u6ca1\u6709\u8d44\u6e90\u800c\u5904\u4e8e Pending \u72b6\u6001\u7684\u60c5\u51b5\u3002\u5982\u679c\u5e94\u7528\u6b64\u65f6\u6709\u5927\u91cf\u8bf7\u6c42\u8fdb\u6765\uff0c\u53c8\u56e0\u4e3a\u6ca1\u6709\u8db3\u591f\u7684\u53ef\u7528\u7684 Pod \u5bfc\u81f4\u53ef\u7528\u6027\u5f02\u5e38\u3002\u00a02. \u53e6\u5916\uff0c\u793e\u533a\u91cd\u8c03\u5ea6\u5668\u8c03\u7528\u7684 K8s \u00a0Evcition API \u867d\u7136\u4f1a\u68c0\u67e5 PDB \u786e\u4fdd\u5728\u5b89\u5168\u8303\u56f4\u5185\u9a71\u9010\uff0c\u4f46\u662f\u4f17\u6240\u5468\u77e5\uff0c\u4f17\u591a\u7684 workload Controller \u5728\u53d1\u5e03\u548c\u7f29\u5bb9\u573a\u666f\u90fd\u662f\u901a\u8fc7\u76f4\u63a5\u8c03\u7528 Delete API \u7684\u5f62\u5f0f\u9500\u6bc1 Pod\uff0c\u6b64\u65f6\u5e76\u4e0d\u4f1a\u88ab PDB \u9650\u5236\u3002\u8fd9\u5c31\u5bfc\u81f4\u91cd\u8c03\u5ea6\u65f6\u5982\u679c\u9047\u5230\u4e0a\u8ff0\u573a\u666f\uff0c\u662f\u5f88\u53ef\u80fd\u5f15\u53d1\u4e25\u91cd\u7684\u7a33\u5b9a\u6027\u95ee\u9898\u3002\u00a03. \u6211\u4eec\u8ba4\u4e3a Pod \u817e\u632a\u4e0d\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u540e\u53f0\u81ea\u52a8\u5316\u903b\u8f91\uff0c\u6709\u76f8\u5f53\u591a\u7684\u573a\u666f\u548c\u7528\u6237\u671f\u671b\u7531\u4eba\u5de5\u4ecb\u5165\u624b\u5de5\u8fc1\u79fb Pod\uff0c\u751a\u81f3\u671f\u671b\u91cd\u8c03\u5ea6\u65f6\u53d1\u8d77\u7684\u81ea\u52a8\u8fc1\u79fb\u8bf7\u6c42\u5e94\u8be5\u88ab\u62e6\u622a\u6389\uff0c\u7ecf\u8fc7\u5ba1\u6279\u51b3\u5b9a\u662f\u5426\u6267\u884c\u3002\u00a0Koordinator \u57fa\u4e8e CRD \u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a\u00a0PodMigrationJob API[4]\u3002\u91cd\u8c03\u5ea6\u5668\u6216\u8005\u5176\u4ed6\u81ea\u52a8\u5316\u81ea\u6108\u7ec4\u4ef6\u901a\u8fc7 PodMigrationJob \u53ef\u4ee5\u5b89\u5168\u7684\u8fc1\u79fb Pod\u3002PodMigrationJob Controller \u5728\u5904\u7406 PodMigrationJob \u65f6\u4f1a\u5148\u5c1d\u8bd5\u901a\u8fc7 Koordinator Reservation \u673a\u5236\u9884\u7559\u8d44\u6e90\uff0c\u9884\u7559\u5931\u8d25\u5219\u8fc1\u79fb\u5931\u8d25\uff1b\u8d44\u6e90\u9884\u7559\u6210\u529f\u540e\u53d1\u8d77\u9a71\u9010\u64cd\u4f5c\u5e76\u7b49\u5f85\u9884\u7559\u7684\u8d44\u6e90\u88ab\u6d88\u8d39\u3002\u4e2d\u95f4\u7684\u8fc7\u7a0b\u90fd\u4f1a\u8bb0\u5f55\u5230 PodMigrationJobStatus \u4e2d\uff0c\u5e76\u4ea7\u751f\u76f8\u5173\u7684 Event\u3002\u00a0Quick Start\u00a0PodMigrationJob \u4f7f\u7528\u8d77\u6765\u4e5f\u5341\u5206\u7b80\u5355\uff1a\u00a01. \u4f7f\u7528\u5982\u4e0b YAML \u6587\u4ef6\u521b\u5efa\u4e00\u4e2a PodMigrationJob migrationjob-demo\uff0c\u8fc1\u79fb Pod pod-demo-5f9b977566-c7lvk\u00a0apiVersion: scheduling.koordinator.sh\/v1alpha1<br \/>kind: PodMigrationJob<br \/>metadata:<br \/>  name: migrationjob-demo<br \/>spec:<br \/>  paused: false<br \/>  ttl: 5m<br \/>  mode: ReservationFirst<br \/>  podRef:<\/p>\n<pre><code>namespace: default\nname: pod-demo-5f9b977566-c7lvk<\/code><\/pre>\n<p>status:<br \/>  phase: Pending\u00a0$ kubectl create -f migrationjob-demo.yaml<br \/>podmigrationjob.scheduling.koordinator.sh\/migrationjob-demo created\u00a02. \u67e5\u8be2 PodMigrationJob \u7684\u8fc1\u79fb\u72b6\u6001\u00a0$ kubectl get podmigrationjob migrationjob-demo<br \/>NAME                PHASE     STATUS     AGE   NODE     RESERVATION                            PODNAMESPACE   POD                         NEWPOD                      TTL<br \/>migrationjob-demo   Succeed   Complete   37s   node-1   d56659ab-ba16-47a2-821d-22d6ba49258e   default        pod-demo-5f9b977566-c7lvk   pod-demo-5f9b977566-nxjdf   5m0s<\/p>\n<p>$ kubectl describe podmigrationjob migrationjob-demo<br \/>&#8230;<br \/>Events:<br \/>  Type    Reason                Age    From               Message<br \/>  &#8212;-    &#8212;&#8212;                &#8212;-   &#8212;-               &#8212;&#8212;-<br \/>  Normal  ReservationCreated    8m33s  koord-descheduler  Successfully create Reservation &#8220;d56659ab-ba16-47a2-821d-22d6ba49258e&#8221;<br \/>  Normal  ReservationScheduled  8m33s  koord-descheduler  Assigned Reservation &#8220;d56659ab-ba16-47a2-821d-22d6ba49258e&#8221; to node &#8220;node-1&#8221;<br \/>  Normal  Evicting              8m33s  koord-descheduler  Try to evict Pod &#8220;default\/pod-demo-5f9b977566-c7lvk&#8221;<br \/>  Normal  EvictComplete         8m     koord-descheduler  Pod &#8220;default\/pod-demo-5f9b977566-c7lvk&#8221; has been evicted<br \/>  Normal  Complete              8m     koord-descheduler  Bind Pod &#8220;default\/pod-demo-5f9b977566-nxjdf&#8221; in Reservation &#8220;d56659ab-ba16-47a2-821d-22d6ba49258e&#8221;\u00a0\u53ef\u4ee5\u89c2\u5bdf\u5230\uff0cPodMigrationJob Controller \u628a Pod pod-demo-5f9b977566-c7lvk \u8fc1\u79fb\u5230\u4e86 <code>node-1<\/code>\uff0c\u65b0 Pod \u4e3a pod-demo-5f9b977566-nxjdf.\u00a0\u4ef2\u88c1\u673a\u5236\u5f53\u524d\u7248\u672c\u8fd8\u6682\u672a\u5b9e\u73b0\u8bbe\u8ba1\u65b9\u6848\u4e2d\u5b9a\u4e49\u7684\u4ef2\u88c1\u673a\u5236\uff0c\u8be5\u673a\u5236\u5c06\u4f1a\u5728 v0.7 \u7248\u672c\u4e2d\u5b9e\u73b0\u3002\u4ef2\u88c1\u673a\u5236\u662f\u6307 PodMigrationJob Controller \u5728 reconcile \u524d\u4f1a\u9009\u62e9\u6700\u5408\u9002\u7684\u4e00\u6279 PodMigrationJob \u6267\u884c\u3002\u8be5\u8fc7\u7a0b\u6d89\u53ca\u5230 Group\u3001Filter \u548c Sort \u4e09\u4e2a\u9636\u6bb5\u3002\u00a0\u00a01. Group \u9636\u6bb5\uff1a\u4f1a\u6309\u7167 Workload, Namespace \u548c Node \u4e09\u4e2a\u7ef4\u5ea6\u805a\u5408\u3002\u00a02. Filter \u9636\u6bb5\uff1a\u00a0\u8fc7\u6ee4\u6389\u5371\u9669\u7684 PodMigrationJob\u3002\u00a0\u5224\u65ad Workload \u5bf9\u5e94\u7684 PDB \u6216\u8005 OpenKruise PUB\uff0c\u5982\u679c\u4e0d\u7b26\u5408\u5b9a\u4e49\u7684\u5b89\u5168\u9608\u503c\uff0c\u5219\u4f1a\u8fc7\u6ee4\u6389\u5224\u65ad\u76ee\u6807 Pod \u5173\u8054\u7684 Workload \u6709\u591a\u5c11\u6b63\u5728\u6267\u884c\u7684 PodMigrationJob\uff0c\u5982\u679c\u8fbe\u5230\u4e86\u914d\u7f6e\u7684\u6700\u5927\u6570\u91cf\uff0c\u5219\u4f1a\u8fc7\u6ee4\u6389\u3002\u5224\u65ad Namespace \u7ef4\u5ea6\u4e0b\u6b63\u5728\u8fc1\u79fb\u7684 Pod \u6570\u91cf\uff0c\u8d85\u8fc7\u9608\u503c\u5219\u8fc7\u6ee4\u6389\u5224\u65ad Node \u7ef4\u5ea6\u4e0b\u6b63\u5728\u8fc1\u79fb\u7684 Pod \u6570\u91cf\uff0c\u8d85\u8fc7\u9608\u503c\u5219\u8fc7\u6ee4\u63893. Sort \u9636\u6bb5\uff1a\u00a0\u5bf9 PodMigrationJob \u6392\u5e8f\u548c\u6253\u6563\u3002\u5c3d\u91cf\u9009\u62e9\u8fc1\u79fb\u4ee3\u4ef7\u4f4e\u7684 Pod\u3002\u00a0\u7528\u6237\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\uff0c\u5728 Pod \u4e0a\u8ffd\u52a0\u6807\u7b7e scheduling.koordinator.sh\/eviction-cost\u6807\u8bb0\u8fc1\u79fb\u4ee3\u4ef7\u3002\u8ba9\u6bcf\u4e2aWorkload\u3001Namespace\u3001Node \u5c3d\u53ef\u80fd\u5c11\u7684\u9a71\u9010 Pod\u00a0\u00a0\u5168\u65b0\u7684\u91cd\u8c03\u5ea6\u6846\u67b6 &#8211; Descheduler Framework\u00a0\u6211\u4eec\u5728 Koordinator v0.6 \u7248\u672c\u4e2d\u5b9e\u73b0\u4e86\u4e00\u4e2a\u5168\u65b0\u7684\u91cd\u8c03\u5ea6\u5668\u6846\u67b6<a href=\"https:\/\/segmentfault.com\/a\/Descheduler\" title=\"Framework\">5<\/a>\u3002\u00a0K8s \u793e\u533a descheduler \u5728\u8fc7\u53bb\u63d0\u4f9b\u4e86\u4e00\u4e9b\u7b56\u7565\u89e3\u51b3\u4e00\u4e9b\u5e38\u7528\u7684\u8c03\u5ea6\u7f16\u6392\u5f02\u5e38\u95ee\u9898\u3002\u4f46\u6211\u4eec\u8ba4\u4e3a\u793e\u533a\u7684 descheduler \u8fd8\u6709\u5f88\u591a\u65b9\u9762\u53ef\u4ee5\u63d0\u5347\uff1a\u00a01. K8s \u793e\u533a descheduler \u53ea\u652f\u6301\u5b9a\u65f6\u6267\u884c\u7684\u673a\u5236\uff0c\u4e0d\u652f\u6301\u57fa\u4e8e Event \u89e6\u53d1\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u65e0\u6cd5\u6ee1\u8db3\u4e00\u4e9b\u671f\u671b\u8054\u52a8\u5176\u4ed6\u7ec4\u4ef6\u89e6\u53d1\u7684\u4e8b\u4ef6\u6216\u8005\u671f\u671b\u6839\u636e Pod\/Node \u4e8b\u4ef6\u5b9e\u73b0\u66f4\u79ef\u6781\u7684\u91cd\u8c03\u5ea6\u7b49\u573a\u666f\u3002\u00a02. \u53e6\u5916\u793e\u533a descheduler \u4e0d\u80fd\u5f88\u597d\u7684\u6269\u5c55\u5b9e\u73b0\u81ea\u5b9a\u4e49\u91cd\u8c03\u5ea6\u7b56\u7565\uff0c\u6bcf\u6b21\u9700\u8981\u5b9e\u73b0\u4e00\u4e2a\u81ea\u5b9a\u4e49\u91cd\u8c03\u5ea6\u7b56\u7565\u65f6\u90fd\u9700\u8981\u628a\u793e\u533a\u4e0a\u6e38\u7684\u4ee3\u7801\u62f7\u8d1d\u5230\u672c\u5730\u8fdb\u884c\u4fee\u6539\uff0c\u7136\u540e\u81ea\u5df1\u7ef4\u62a4\u8d77\u6765\uff0c\u5f53\u540e\u7eed\u793e\u533a\u6709\u53d8\u5316\u65f6\uff0c\u9700\u8981\u82b1\u8d39\u8f83\u5927\u7684\u4ee3\u4ef7\u8fdb\u884c\u5408\u5e76\u3002\u8fd9\u70b9\u4e0e kube-scheduler \u5bf9\u6bd4\u6765\u770b\uff0ckube-scheduler \u57fa\u4e8e scheduling framework\uff0c\u652f\u6301\u7528\u6237\u65e0\u9700\u4fee\u6539\u4e0a\u6e38\u4ee3\u7801\u65e2\u53ef\u4ee5\u6269\u5c55\u8c03\u5ea6\u80fd\u529b\u3002\u00a03. \u4e0d\u652f\u6301\u81ea\u5b9a\u4e49\u9a71\u9010\u903b\u8f91\u3002\u4f8b\u5982\u5f53\u9700\u8981\u5b9e\u73b0\u4e0a\u9762\u63d0\u5230\u7684 PodMigrationJob \u65f6\uff0c\u53ea\u80fd fork \u4ee3\u7801\u540e\u4fee\u6539\u9002\u914d\u3002\u00a0\u6211\u4eec\u8ba4\u4e3a\u91cd\u8c03\u5ea6\u573a\u666f\uff1a\u00a01. \u9700\u8981\u4e00\u4e2a\u63d2\u4ef6\u5316\u673a\u5236\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7684\u91cd\u8c03\u5ea6\u7b56\u7565\uff0c\u4f46\u53c8\u4e0d\u5e0c\u671b\u8fd9\u4e2a\u62bd\u8c61\u8fc7\u4e8e\u590d\u6742\uff1b2. \u9700\u8981\u5177\u5907\u57fa\u672c\u7684\u63d2\u4ef6\u7ba1\u7406\u80fd\u529b\uff0c\u901a\u8fc7\u914d\u7f6e\u542f\u7528\u548c\u7981\u7528\u63d2\u4ef6\uff1b3. \u5177\u5907\u7edf\u4e00\u7684\u63d2\u4ef6\u914d\u7f6e\u4e0b\u53d1\u673a\u5236\uff0c\u65b9\u4fbf\u63d2\u4ef6\u81ea\u5b9a\u4e49\u53c2\u6570\uff1b4. \u5e76\u80fd\u591f\u65b9\u4fbf\u7684\u6269\u5c55\u548c\u4f7f\u7528\u7edf\u4e00\u7684 Evictor \u673a\u5236\uff1b5. \u53e6\u5916\u671f\u671b\u7528\u6237\u80fd\u591f\u57fa\u4e8e controller-runtime \u5b9e\u73b0 controller \u5e76\u7eb3\u5165\u7edf\u4e00\u7684\u63d2\u4ef6\u7ba1\u7406\u673a\u5236\u3002\u00a0\u6211\u4eec\u5728\u8fdb\u884c descheduler framework \u7684\u8bbe\u8ba1\u65f6\uff0c\u4e5f\u6ce8\u610f\u5230 K8s descheduler \u793e\u533a\u5176\u5b9e\u4e5f\u6ce8\u610f\u5230\u4e86\u8fd9\u4e9b\u95ee\u9898\uff0c\u671f\u671b\u5b9e\u73b0\u4e00\u4e2a\u7c7b\u4f3c\u4e8e K8s scheduling framework \u4e00\u6837\u7684\u6846\u67b6(descheduler framework) \uff0c\u5e76\u4e14\u4e5f\u63d0\u51fa\u4e86\u4e00\u4e9b\u9488\u5bf9\u6027\u7684\u63d0\u6848\u63a2\u7d22\u76f8\u5173\u7684\u5b9e\u73b0\uff0c\u4f8b\u5982\u00a0#753\u00a0Descheduler framework Proposal[6]\u548c\u00a0PoC #781[7]\u3002\u00a0\u8fd9\u4e2a\u60f3\u6cd5\u4e0e Koordinator \u56e2\u961f\u4e0d\u8c0b\u800c\u5408\u3002\u7eb5\u89c2 K8s descheduler \u793e\u533a\u7684\u63d0\u6848\uff0c\u57fa\u672c\u4e0a\u89e3\u51b3\u4e86\u6211\u4eec\u5173\u5fc3\u7684\u5f88\u591a\u95ee\u9898\uff0c\u4f8b\u5982\u63d2\u4ef6\u914d\u7f6e\u3001\u63d2\u4ef6\u62bd\u8c61\u7b49\uff0c\u4f46\u662f\u6211\u4eec\u4e5f\u6ce8\u610f\u5230\u6709\u5f88\u591a\u76f8\u5173\u5b9e\u73b0\u8fd8\u5728 PoC \u9636\u6bb5\u6216\u8005\u90e8\u5206\u76f8\u5173\u5b9e\u73b0\u8fd8\u672a\u5408\u5165\u5230\u4e3b\u5e72\u5206\u652f\u3002\u7ecf\u8fc7 Koordinator \u56e2\u961f\u7684 Review \u548c\u8ba8\u8bba\uff0c\u6211\u4eec\u8ba4\u4e3a\u867d\u7136\u8fd9\u4e9b\u63d0\u6848\u4e2d\u8fd8\u6709\u4e00\u4e9b\u672a\u89e3\u51b3\u7684\u95ee\u9898\u548c\u672a\u5b8c\u5168\u6572\u5b9a\u7684\u8bbe\u8ba1\uff0c\u4f46\u6211\u4eec\u76f8\u4fe1\u8fd9\u662f\u4e00\u4e2a\u6b63\u786e\u7684\u65b9\u5411\u3002\u00a0\u540c\u65f6\u57fa\u4e8e Koordinator \u5236\u5b9a\u7684\u7684\u91cc\u7a0b\u7891\uff0c\u6211\u4eec\u671f\u671b\u5c3d\u5feb\u5efa\u8bbe\u91cd\u8c03\u5ea6\u76f8\u5173\u7684\u7279\u6027\uff0c\u56e0\u6b64\u6211\u4eec\u57fa\u4e8e\u4e0a\u6e38\u793e\u533a#753 PR[8]\u7684\u601d\u8def\uff0c\u5728 Koordinator \u4e2d\u72ec\u7acb\u5b9e\u73b0\u4e86\u4e00\u5957\u65b0\u7684 descheduler framework\u3002\u6211\u4eec\u671f\u671b\u901a\u8fc7\u8fd9\u6837\u72ec\u7acb\u5b9e\u73b0\u7684\u65b9\u5f0f\u89e3\u51b3 Koordinator \u5bf9\u91cd\u8c03\u5ea6\u80fd\u529b\u7684\u9700\u6c42\uff0c\u540c\u65f6\u4e5f\u671f\u671b\u501f\u6b64\u63a8\u52a8\u4e0a\u6e38\u793e\u533a descheduler framework \u5de5\u4f5c\u7684\u6f14\u8fdb\uff0c\u5f53\u4e0a\u6e38\u6709\u65b0\u7684\u8fdb\u5c55\u65f6\uff0c\u6211\u4eec\u5c06\u4f1a\u53ca\u65f6\u8ddf\u8fdb\uff0c\u5c3d\u6700\u5927\u53ef\u80fd\u4e0e\u4e0a\u6e38\u4fdd\u6301\u517c\u5bb9\u3002\u00a0Koordinator descheduler framework \u63d0\u4f9b\u4e86\u63d2\u4ef6\u914d\u7f6e\u7ba1\u7406\uff08\u4f8b\u5982\u542f\u7528\u3001\u7981\u7528\uff0c\u7edf\u4e00\u914d\u7f6e\u7b49\uff09\u3001\u63d2\u4ef6\u521d\u59cb\u5316\u3001\u63d2\u4ef6\u6267\u884c\u5468\u671f\u7ba1\u7406\u7b49\u673a\u5236\u3002\u5e76\u4e14\u8be5\u6846\u67b6\u5185\u7f6e\u4e86\u57fa\u4e8e PodMigrationJob \u5b9e\u73b0\u7684 Controller\uff0c\u5e76\u4f5c\u4e3a Evictor Plugin \u65b9\u4fbf\u88ab\u5404\u79cd\u91cd\u8c03\u5ea6\u63d2\u4ef6\u4f7f\u7528\uff0c\u5e2e\u52a9\u91cd\u8c03\u5ea6\u63d2\u4ef6\u5b89\u5168\u7684\u8fc1\u79fb Pod\u3002\u00a0\u57fa\u4e8e Koordinator descheduler framework\uff0c\u7528\u6237\u53ef\u4ee5\u975e\u5e38\u5bb9\u6613\u7684\u6269\u5c55\u5b9e\u73b0\u81ea\u5b9a\u4e49\u91cd\u8c03\u5ea6\u7b56\u7565\uff0c\u5c31\u50cf\u57fa\u4e8e K8s scheduling framework \u7684\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7684\u8c03\u5ea6\u63d2\u4ef6\u4e00\u6837\u7b80\u5355\u3002\u5e76\u4e14\u7528\u6237\u4e5f\u53ef\u4ee5\u4ee5\u63d2\u4ef6\u7684\u5f62\u5f0f\u5b9e\u73b0 controller\uff0c\u652f\u6301\u57fa\u4e8e Event \u89e6\u53d1\u91cd\u8c03\u5ea6\u7684\u573a\u666f\u3002\u00a0\u5f53\u524d\uff0c\u6211\u4eec\u5df2\u7ecf\u5b8c\u6210\u4e86 descheduler framework \u4e3b\u4f53\u90e8\u5206\uff0c\u6574\u4f53\u90fd\u662f\u53ef\u7528\u7684\u3002\u5e76\u4e14\u63d0\u4f9b\u4e86\u4e00\u4e2a\u793a\u4f8b\u63d2\u4ef6[9]\u65b9\u4fbf\u5927\u5bb6\u7406\u89e3\u548c\u5f00\u53d1\u3002\u5728\u540e\u7eed\u7684\u7248\u672c\u4e2d\uff0c\u6211\u4eec\u5c06\u4f1a\u8fc1\u79fb\u793e\u533a\u5df2\u6709\u7684\u91cd\u8c03\u5ea6\u7b56\u7565\uff0c\u4ee5\u63d2\u4ef6\u7684\u5f62\u5f0f\u96c6\u6210\u5230 Koordinator\uff0c\u4f5c\u4e3a\u5185\u7f6e\u80fd\u529b\u7684\u4e00\u90e8\u5206\u3002\u5e76\u4e14\u8fd8\u4f1a\u9488\u5bf9\u6df7\u90e8\u573a\u666f\uff0c\u5b9e\u73b0\u9488\u5bf9\u6027\u7684\u91cd\u8c03\u5ea6\u63d2\u4ef6\u89e3\u51b3\u6df7\u90e8\u573a\u666f\u4e0b\u7684\u5177\u4f53\u95ee\u9898\uff0c\u4f8b\u5982\u8d1f\u8f7d\u5747\u8861\u91cd\u8c03\u5ea6\uff0c\u89e3\u51b3\u8282\u70b9\u95f4\u8d1f\u8f7d\u4e0d\u5747\u8861\u3001\u70ed\u70b9\u7b49\u95ee\u9898\u3002\u00a0\u76ee\u524d\u6846\u67b6\u8fd8\u5904\u4e8e\u5feb\u901f\u6f14\u8fdb\u7684\u521d\u671f\u9636\u6bb5\uff0c\u8fd8\u6709\u5f88\u591a\u7ec6\u8282\u9700\u8981\u5b8c\u5584\u3002\u6b22\u8fce\u5927\u5bb6\u6709\u5174\u8da3\u4e00\u8d77\u53c2\u4e0e\u5efa\u8bbe\u3002\u6211\u4eec\u5e0c\u671b\u66f4\u591a\u7684\u4eba\u53ef\u4ee5\u66f4\u653e\u5fc3\u3001\u66f4\u7b80\u5355\u5730\u5b9e\u73b0\u81ea\u5df1\u9700\u8981\u7684\u53bb\u8c03\u5ea6\u80fd\u529b\u3002\u00a0\u5176\u4ed6\u53d8\u66f4\u00a0\u5bf9\u4e8e\u5927\u5bb6\u5173\u5fc3\u7684 GPU Share Scheduling, Gang Scheduling \u548c Elastic Quota Scheduling \u7b49\u80fd\u529b\u4e5f\u6709\u4e00\u4e9b\u65b0\u7684\u8fdb\u5c55\u3002\u00a0\u5728 v0.6 \u7248\u672c\u4e2d\uff0cKoordiantor\u793e\u533a\u5b8c\u6210\u4e86 GPU Share Scheduling \u548c Gang Scheduling \u7684\u65b9\u6848\u8bbe\u8ba1\u5de5\u4f5c\uff0c\u76f8\u5173\u7684 Proposal \u5df2\u7ecf Review \u901a\u8fc7\u3002Elastic Quota Scheduling \u7684\u65b9\u6848\u8bbe\u8ba1\u4e5f\u57fa\u672c\u5b8c\u6210\u3002\u8fd9\u4e9b\u80fd\u529b\u5c06\u4f1a\u5728 v0.7 \u7248\u672c\u4e2d\u5b9e\u73b0\u3002\u00a0\u53e6\u5916\uff0c\u4e3a\u4e86\u63a2\u7d22 GPU \u8d85\u5356\u548c GPU \u8bca\u65ad\u5206\u6790\u7b49\u573a\u666f\uff0c\u5728 v0.6 \u7248\u672c\u4e2d\u589e\u52a0\u4e86 GPU Metric \u4e0a\u62a5\u673a\u5236\u3002\u00a0\u4f60\u53ef\u4ee5\u901a\u8fc7\u00a0Github release[10]\u9875\u9762\uff0c\u6765\u67e5\u770b\u66f4\u591a\u7684\u6539\u52a8\u4ee5\u53ca\u5b83\u4eec\u7684\u4f5c\u8005\u4e0e\u63d0\u4ea4\u8bb0\u5f55\u3002\u793e\u533a\u53c2\u4e0e\u00a0\u975e\u5e38\u6b22\u8fce\u4f60\u901a\u8fc7 Github\/Slack\/\u9489\u9489\/\u5fae\u4fe1 \u7b49\u65b9\u5f0f\u52a0\u5165\u6211\u4eec\u6765\u53c2\u4e0e Koordinator \u5f00\u6e90\u793e\u533a\u3002\u4f60\u662f\u5426\u5df2\u7ecf\u6709\u4e00\u4e9b\u5e0c\u671b\u4e0e\u6211\u4eec\u793e\u533a\u4ea4\u6d41\u7684\u5185\u5bb9\u5462\uff1f\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6e20\u9053\u53c2\u4e0e\u8ba8\u8bba\uff1a\u00a0\u52a0\u5165\u793e\u533a\u00a0Slack channel<a href=\"https:\/\/segmentfault.com\/a\/English\">11<\/a>\u52a0\u5165\u793e\u533a\u9489\u9489\u7fa4\uff1a\u641c\u7d22\u7fa4\u53f7 33383887 (Chinese) \u6216\u8005\u626b\u63cf\u4e0b\u65b9\u4e8c\u7ef4\u7801\u00a0<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042385338\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u00a0\u76f8\u5173\u94fe\u63a5\u00a0[1] \u7248\u672c 0.5\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=wVXQDgRQmc7YAtVQhjo3ww%3D%3D.zQtsLJ5hCyyoC24PYJ1uf0nbE422dhLRAhfsyDLz0y8%2B0ZGY3SIwmOvVmtyt8r0NE4f%2F2V%2F7RhSTR8hySIjdGb0I0s0jN1c0C5EupxRlwX4%3D\" rel=\"nofollow\">https:\/\/github.com\/koordinato&#8230;<\/a>\u00a0[2]\u00a0CPU \u7cbe\u7ec6\u5316\u7f16\u6392\u65b9\u6848\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=JGFhZHWc2%2FxfIxjs8C5Brw%3D%3D.RnZ%2FvInEEDYRvQ0%2F2%2BWLot%2FtqAD4oSohsOnJ5uSeBn72vitrfX3d3LK6IRsbOeV%2FzdPSxy6TmCxL229GRF%2BqW7%2Fs%2ByyHcF6DA9trL4H6vuM%3D\" rel=\"nofollow\">https:\/\/koordinator.sh\/docs\/u&#8230;<\/a>\u00a0[3]\u00a0\u8d44\u6e90\u9884\u7559 API \u8bbe\u8ba1\u65b9\u6848<a href=\"https:\/\/link.segmentfault.com\/?enc=fkeK8Wo6dV4NfgIbsx%2BlZw%3D%3D.nZJMHUnC0He7nSf8%2FUwoOHDPVvgCXe7tYAUAXsVz6BnvqGy%2BpE9DatrtMtdroJ7nO6f2KD%2FfHeJ770U0gkL9Zg%3D%3D\" rel=\"nofollow\">https:\/\/koordinator.sh\/docs\/d&#8230;<\/a>\u00a0[4]\u00a0PodMigrationJob API\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=tJTk%2BBxb%2Fx6SJJEYVOKQ1w%3D%3D.C1lFX3tM0%2FECVqYEe%2Fhrp8NM3NKKFj1pLKsUmBb4xiJYhXLbxs5rw1fzSL%2BdD0xQbvUimQEm3WyZUAdKdO5cVA%3D%3D\" rel=\"nofollow\">https:\/\/koordinator.sh\/docs\/d&#8230;<\/a>\u00a0[5]\u00a0\u91cd\u8c03\u5ea6\u5668\u6846\u67b6\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=tdphOHEHihn%2BJV1u6kGZuQ%3D%3D.jL0w98rtzZ%2BDXw1nDojtCJFfijKbV20N%2FbFe0LDpM7RGiAuUD5NeQnzChmXEGHjE3B9FeLyHv4rFxpaGPQbE5g%3D%3D\" rel=\"nofollow\">https:\/\/koordinator.sh\/docs\/d&#8230;<\/a>\u00a0[6]\u00a0#753 Descheduler framework Proposal \uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=7VmCFzfWkF236GYa%2BqdmFA%3D%3D.%2B5kJHmoxVKjQgEDd6k52fniN6W0g55lhKQUuUlsA%2FwDFSjbcD7mkSQgrhW6pf5buFUNzHjGrHp10Y3lKlSKI7g%3D%3D\" rel=\"nofollow\">https:\/\/github.com\/kubernetes&#8230;<\/a>\u00a0[7]\u00a0PoC #781\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=FCVc3eGWihkAWQPRxbZ1Kg%3D%3D.DcqGw5u7T9jBvZ4vGJDA8IAGLY2d8lNAquHutLKuCSuj%2F0t1Ps2ugvFyr9VapdLqM5a11O0efYCAHGhunPtZng%3D%3D\" rel=\"nofollow\">https:\/\/github.com\/kubernetes&#8230;<\/a>\u00a0[8]\u00a0#753 PR\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=DS9vVnGu9L4SVrPuCWB26w%3D%3D.uAMsjvHSxuetWq5SiiiGbxpapGRoNymgHaTYdF2YRKa13lauQcGqrn%2B8taBtDZ8p6aCfSL%2BM6YC5w1BWZ1Pwpg%3D%3D\" rel=\"nofollow\">https:\/\/github.com\/kubernetes&#8230;<\/a>\u00a0[9]\u00a0\u793a\u4f8b\u63d2\u4ef6\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=TNVWpqoPrmyIisRQ%2B0UNlA%3D%3D.qOuMmTHAqzIhdtj66IsVqjhExLMMJNKdZMcO8J3GDnUWYbezaT3JqqGRz6%2FaoQaxgTei0%2BjToGhYVR3wRUr70XgsvFliOOozxDZEp%2BkP8G7lAqWpl%2FZ40Aa5Y%2BAQJvn30AXzSXKILxWHhNqpXwVN3iSonRt2lJ8CtaTuaFC%2B%2Fr9OQ1esBIHmKc%2FQqV4pzKvJ\" rel=\"nofollow\">https:\/\/github.com\/koordinato&#8230;<\/a>\u00a0[10]\u00a0Github release\uff1a<a 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href=\"https:\/\/segmentfault.com\/a\/1190000042385330\">https:\/\/segmentfault.com\/a\/1190000042385330<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u4ecb\uff1a\u00a0\u7ecf\u8fc7\u793e\u533a\u591a\u4f4d\u6210\u5458\u7684\u8d21\u732e\uff0cKoordinator 0.6 \u7248\u672c\u6b63\u5f0f\u53d1\u5e03\u3002\u76f8\u8f83\u4e8e\u4e0a\u4e00\u4e2a\u7248\u672c 0.5\uff0c\u65b0\u7248\u672c [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-10006331","post","type-post","status-publish","format-standard","hentry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006331","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"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10006331"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006331\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10006331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10006331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10006331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}