{"id":110553,"date":"2026-09-28T23:40:43","date_gmt":"2026-09-28T15:40:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/110553.html"},"modified":"2026-09-28T23:40:43","modified_gmt":"2026-09-28T15:40:43","slug":"k8s-%e7%94%9f%e4%ba%a7%e9%81%bf%e5%9d%91%e6%8c%87%e5%8d%97%ef%bc%9a%e4%b8%80%e5%b9%b4-50-%e8%b5%b7%e7%94%9f%e4%ba%a7%e7%ba%a7%e9%9b%86%e7%be%a4%e6%95%85%e9%9a%9c%e8%83%8c%e5%90%8e%e7%9a%84%e6%b7%b1","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/110553.html","title":{"rendered":"K8s \u751f\u4ea7\u907f\u5751\u6307\u5357\uff1a\u4e00\u5e74 50+ \u8d77\u751f\u4ea7\u7ea7\u96c6\u7fa4\u6545\u969c\u80cc\u540e\u7684\u6df1\u5ea6\u590d\u76d8"},"content":{"rendered":"<h2>K8s \u751f\u4ea7\u907f\u5751\u6307\u5357&#xff1a;\u4e00\u5e74 50&#043; \u8d77\u751f\u4ea7\u7ea7\u96c6\u7fa4\u6545\u969c\u80cc\u540e\u7684\u6df1\u5ea6\u590d\u76d8<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260928154042-6aba8a7ad8f27.webp\" alt=\"\u5c01\u9762\u4fe1\u606f\u56fe\" \/><\/p>\n<p>\u5728\u5927\u578b\u751f\u4ea7\u7ea7 Kubernetes \u96c6\u7fa4\u7684\u65e5\u5e38\u8fd0\u7ef4\u4e2d&#xff0c;\u51e0\u4e4e\u6bcf\u4e00\u4e2a\u7ecf\u5386\u8fc7\u6df1\u591c\u503c\u73ed\u88ab\u7535\u8bdd\u53eb\u9192\u7684\u8fd0\u7ef4\u4e0e\u67b6\u6784\u5de5\u7a0b\u5e08&#xff0c;\u90fd\u66fe\u4e3a\u4e00\u4e9b\u770b\u4f3c\u532a\u5937\u6240\u601d\u7684\u201c\u8be1\u5f02\u6545\u969c\u201d\u4ea4\u8fc7\u6602\u8d35\u7684\u5b66\u8d39&#xff1a;<\/p>\n<ul>\n<li>\u4e3a\u4ec0\u4e48\u4e00\u4e2a\u666e\u666e\u901a\u901a\u7684\u5fae\u670d\u52a1\u5728\u53d1\u5e03\u4e0a\u7ebf\u77ac\u95f4&#xff0c;\u524d\u7aef\u7f51\u5173\u4f1a\u7a81\u53d1\u51fa\u73b0 \u6570\u767e\u4e2a 502 Bad Gateway \u62a5\u9519&#xff1f;<\/li>\n<li>\u4e3a\u4ec0\u4e48\u5e94\u7528\u5728\u5bb9\u5668\u91cc\u660e\u660e\u53ea\u7528\u4e86 4GB \u5185\u5b58&#xff0c;\u5374\u7a81\u7136\u88ab Linux \u5185\u6838\u65e0\u60c5\u5730 OOMKilled \u5f3a\u884c\u51fb\u6740&#xff1f;<\/li>\n<li>\u4e3a\u4ec0\u4e48\u5728\u6ca1\u6709\u4efb\u4f55\u5927\u6d41\u91cf\u51b2\u51fb\u7684\u6df1\u591c&#xff0c;\u96c6\u7fa4\u7684 DNS \u89e3\u6790\u8017\u65f6\u4f1a\u5076\u53d1\u6027\u98d9\u5347\u5230\u6574\u6574 5 \u79d2&#xff1f;<\/li>\n<\/ul>\n<p>\u5728\u8fc7\u53bb\u7684\u4e00\u5e74\u4e2d&#xff0c;\u6211\u4eec\u56e2\u961f\u6df1\u5ea6\u590d\u76d8\u4e86\u652f\u6491\u96c6\u56e2\u6570\u767e\u4e2a\u5fae\u670d\u52a1\u4e0e\u4e0a\u5343\u5f20 GPU \u7684\u5927\u89c4\u6a21 Kubernetes \u96c6\u7fa4\u4e2d\u53d1\u751f\u7684 50 \u4f59\u8d77\u771f\u5b9e\u751f\u4ea7\u6545\u969c\u3002<\/p>\n<p>\u6211\u4eec\u53d1\u73b0&#xff1a;90% \u4ee5\u4e0a\u7684\u91cd\u5927\u751f\u4ea7\u4e8b\u6545&#xff0c;\u6839\u672c\u4e0d\u662f\u4ec0\u4e48\u6df1\u5965\u7684\u5185\u6838 Bug&#xff0c;\u800c\u662f\u56e0\u4e3a\u8e29\u4e2d\u4e86 Kubernetes \u9ed8\u8ba4\u914d\u7f6e\u4e2d\u6781\u5176\u9690\u853d\u7684\u2018\u8bbe\u8ba1\u5929\u5751\u2019\u3002<\/p>\n<p>\u672c\u6587\u5c06\u8fd9 50&#043; \u8d77\u751f\u4ea7\u8840\u6cea\u6559\u8bad\u6d53\u7f29\u4e3a\u4e94\u5927\u6700\u5177\u6740\u4f24\u529b\u7684\u751f\u4ea7\u7ea7\u6697\u7901\u4e0e\u9ec4\u91d1\u907f\u5751\u6307\u5357\u3002<\/p>\n<h3>\u751f\u4ea7\u7ea7 K8s \u4e94\u5927\u81f4\u547d\u5929\u5751\u4e0e\u5168\u666f\u9632\u5fa1\u62d3\u6251<\/h3>\n<p>                       \u3010K8s \u751f\u4ea7\u4e94\u5927\u81f4\u547d\u5929\u5751\u4e0e\u9632\u5fa1\u5168\u666f\u3011<\/p>\n<p>  \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n  \u2502 \u81f4\u547d\u5751 1: CoreDNS \u5076\u53d1 5 \u79d2\u8d85\u65f6 (ndots:5 \u57df\u540d\u653e\u5927\u96ea\u5d29)       \u2502<br \/>\n  \u2502   &#8211; \u6839\u56e0: \u9ed8\u8ba4 &#096;ndots:5&#096; \u5bfc\u81f4\u6bcf\u4e2a\u5916\u90e8\u8bf7\u6c42\u5148\u53d1\u8d77 4 \u6b21\u65e0\u6548\u5185\u7f51\u89e3\u6790\u2502<br \/>\n  \u2502   &#8211; \u9632\u5fa1: NodeLocal DNSCache &#043; \u4e1a\u52a1\u5bb9\u5668 &#096;ndots:2&#096;           \u2502<br \/>\n  \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524<br \/>\n  \u2502 \u81f4\u547d\u5751 2: \u6eda\u52a8\u53d1\u5e03 502 \u6d41\u91cf\u9ed1\u6d1e (\u7f3a\u4e4f\u4f18\u96c5\u4e0b\u7ebf preStop)     \u2502<br \/>\n  \u2502   &#8211; \u6839\u56e0: iptables \u89c4\u5219\u6e05\u7406\u6bd4 Pod \u9500\u6bc1\u6162 2 \u79d2&#xff0c;\u6d41\u91cf\u4f9d\u7136\u6253\u5411\u6b7b Pod\u2502<br \/>\n  \u2502   &#8211; \u9632\u5fa1: \u5f3a\u5236\u6ce8\u5165 &#096;preStop: sleep 15&#096; &#043; readinessProbe \u63a2\u9488 \u2502<br \/>\n  \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524<br \/>\n  \u2502 \u81f4\u547d\u5751 3: \u5bb9\u5668\u5185\u5b58 Cgroup \u4e0e JVM \u53c2\u6570\u4e0d\u5339\u914d\u5bfc\u81f4 OOMKilled    \u2502<br \/>\n  \u2502   &#8211; \u6839\u56e0: \u65e7\u7248 JDK \u65e0\u6cd5\u8bc6\u522b\u5bb9\u5668 limits.memory&#xff0c;\u9ed8\u8ba4\u4ee5\u5bbf\u4e3b\u673a\u7269\u7406\u5185\u5b58\u5206\u914d\u5806\u2502<br \/>\n  \u2502   &#8211; \u9632\u5fa1: \u5f00\u542f &#096;-XX:&#043;UseContainerSupport -XX:MaxRAMPercentage&#061;75.0&#096;\u2502<br \/>\n  \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524<br \/>\n  \u2502 \u81f4\u547d\u5751 4: \u4e34\u65f6\u65e5\u5fd7\u6253\u6ee1\u5f15\u53d1 Node Eviction \u9a71\u9010\u96ea\u5d29            \u2502<br \/>\n  \u2502   &#8211; \u6839\u56e0: \u4e1a\u52a1\u628a\u5927\u91cf\u65e5\u5fd7\u76f4\u63a5\u6253\u5728 rootfs&#xff0c;\u89e6\u53d1 ephemeral-storage \u9a71\u9010\u2502<br \/>\n  \u2502   &#8211; \u9632\u5fa1: \u5f3a\u5236\u6302\u8f7d Local PV \u72ec\u7acb\u78c1\u76d8 &#043; \u4e25\u683c\u914d\u7f6e\u5b58\u50a8 Limit \u8d44\u6e90\u914d\u989d\u2502<br \/>\n  \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524<br \/>\n  \u2502 \u81f4\u547d\u5751 5: GPU \u8282\u70b9 XID \u6389\u5361\u5bfc\u81f4\u7684\u50f5\u5c38\u8c03\u5ea6\u98ce\u66b4               \u2502<br \/>\n  \u2502   &#8211; \u6839\u56e0: \u663e\u5361\u7269\u7406\u6389\u7ebf\u4f46\u8282\u70b9 Ready&#xff0c;Kubelet \u6e90\u6e90\u4e0d\u65ad\u628a Pod \u5f80\u706b\u5751\u91cc\u9001\u2502<br \/>\n  \u2502   &#8211; \u9632\u5fa1: GPU XID \u63a2\u9488 &#043; 1.5s \u81ea\u52a8\u5316 Cordon \u4e0e Drain \u81ea\u6108 Operator\u2502<br \/>\n  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/p>\n<h3>\u4e94\u5927\u751f\u4ea7\u81f4\u547d\u5929\u5751\u6df1\u5ea6\u5256\u6790\u4e0e\u907f\u5751\u5b9e\u6218<\/h3>\n<h4>1. \u5929\u5751\u4e00&#xff1a;CoreDNS \u5076\u53d1 5 \u79d2\u8d85\u65f6\u4e0e ndots:5 \u9677\u9631<\/h4>\n<ul>\n<li>\u4e8b\u6545\u73b0\u8c61&#xff1a;\u4e1a\u52a1\u9ad8\u5e76\u53d1\u8c03\u7528\u5916\u90e8\u7b2c\u4e09\u65b9\u652f\u4ed8\u63a5\u53e3\u65f6&#xff0c;\u7f51\u7edc\u8bf7\u6c42\u5076\u53d1\u5361\u987f\u6574\u6574 5 \u79d2&#xff1b;<\/li>\n<li>\u5e95\u5c42\u6839\u56e0&#xff1a;Kubernetes \u9ed8\u8ba4 resolv.conf \u4e2d\u914d\u7f6e\u4e86 options ndots:5\u3002\u5f53\u5bb9\u5668\u8bf7\u6c42 api.payment.com \u65f6&#xff0c;\u56e0\u4e3a\u70b9\u53f7&#xff08;.&#xff09;\u6570\u91cf\u53ea\u6709 2 \u4e2a&#xff08;\u5c0f\u4e8e 5&#xff09;&#xff0c;musl\/glibc \u4f1a\u4f9d\u6b21\u5c1d\u8bd5\u62fc\u63a5&#xff1a;\n<li>api.payment.com.default.svc.cluster.local (404)<\/li>\n<li>api.payment.com.svc.cluster.local (404)<\/li>\n<li>api.payment.com.cluster.local (404)<\/li>\n<li>\u6700\u7ec8\u624d\u53d1\u8d77\u771f\u5b9e\u7684 api.payment.com. \u9012\u5f52\u67e5\u8be2&#xff01;\u5f53\u9047\u5230 UDP \u4e22\u5305\u65f6&#xff0c;\u5355\u6b21\u91cd\u8bd5\u8d85\u65f6\u521a\u597d\u662f 5 \u79d2&#xff01;<\/li>\n<\/li>\n<li>\u751f\u4ea7\u89e3\u6cd5&#xff1a;\u90e8\u7f72 NodeLocal DNSCache \u5c06 DNS \u7f13\u5b58\u4e0b\u6c89\u81f3\u5bbf\u4e3b\u673a&#xff0c;\u5e76\u5728\u5173\u952e Pod \u4e2d\u8986\u76d6 dnsConfig&#xff1a;dnsConfig:<br \/>\n  options:<br \/>\n    &#8211; name: ndots<br \/>\n      value: &#034;2&#034;<\/p>\n<\/li>\n<\/ul>\n<h4>2. \u5929\u5751\u4e8c&#xff1a;\u6eda\u52a8\u66f4\u65b0\u5f15\u53d1\u7684 502 \u6d41\u91cf\u9ed1\u6d1e&#xff08;Traffic Black Hole&#xff09;<\/h4>\n<ul>\n<li>\u4e8b\u6545\u73b0\u8c61&#xff1a;\u6bcf\u6b21 Deployment \u6eda\u52a8\u5347\u7ea7\u65b0\u7248\u672c\u65f6&#xff0c;\u524d\u7aef\u76d1\u63a7\u5c31\u4f1a\u7a81\u53d1\u51fa\u73b0\u51e0\u5341\u4e2a 502 \u62a5\u9519&#xff1b;<\/li>\n<li>\u5e95\u5c42\u6839\u56e0&#xff1a;Kubernetes \u5220\u9664 Pod \u65f6\u662f\u5b8c\u5168\u5f02\u6b65\u7684\u2014\u2014Kubelet \u5411\u5e94\u7528\u5bb9\u5668\u53d1\u9001 SIGTERM \u4fe1\u53f7\u7684\u540c\u65f6&#xff0c;Endpoints Controller \u5f02\u6b65\u901a\u77e5\u5404\u8282\u70b9 kube-proxy \u66f4\u65b0 iptables\/IPVS \u89c4\u5219\u3002\u5728 iptables \u89c4\u5219\u66f4\u65b0\u5b8c\u6210\u524d\u7684\u8fd9 1~2 \u79d2\u5185&#xff0c;\u5916\u90e8\u771f\u5b9e\u6d41\u91cf\u4f9d\u7136\u4f1a\u88ab\u8def\u7531\u5230\u6b63\u5728\u505c\u6b62\u7684\u5e94\u7528\u5bb9\u5668\u4e0a&#xff01;<\/li>\n<li>\u751f\u4ea7\u89e3\u6cd5&#xff1a;\u5728\u6240\u6709\u4e1a\u52a1 Pod \u7684\u751f\u547d\u5468\u671f\u94a9\u5b50\u4e2d\u5f3a\u5236\u6ce8\u5165 preStop sleep&#xff1a;lifecycle:<br \/>\n  preStop:<br \/>\n    exec:<br \/>\n      command: [&#034;\/bin\/sh&#034;, &#034;-c&#034;, &#034;sleep 15&#034;] # \u7b49\u5f85 15 \u79d2\u786e\u4fdd\u7f51\u5173 iptables \u89c4\u5219\u5df2\u6458\u9664<\/p>\n<\/li>\n<\/ul>\n<h4>3. \u5929\u5751\u4e09&#xff1a;JVM \u65e0\u6cd5\u611f\u77e5\u5bb9\u5668\u8fb9\u754c\u5bfc\u81f4\u7684 OOMKilled<\/h4>\n<ul>\n<li>\u4e8b\u6545\u73b0\u8c61&#xff1a;\u5bbf\u4e3b\u673a\u6709 256GB \u5185\u5b58&#xff0c;\u5bb9\u5668\u914d\u7f6e\u4e86 limits.memory: 8Gi&#xff0c;\u5e94\u7528\u542f\u52a8\u4e0d\u4e45\u540e\u76f4\u63a5\u88ab\u5185\u6838 SIGKILL \u51fb\u6740&#xff0c;\u5bb9\u5668\u9000\u51fa\u7801 137&#xff1b;<\/li>\n<li>\u5e95\u5c42\u6839\u56e0&#xff1a;\u8f83\u65e7\u7248\u672c\u7684 JVM \u8fd0\u884c\u65f6\u76f4\u63a5\u8bfb\u53d6 \/proc\/meminfo&#xff08;\u5bbf\u4e3b\u673a\u7684 256GB&#xff09;&#xff0c;\u9ed8\u8ba4\u5c06\u6700\u5927\u5806\u5185\u5b58\u8bbe\u4e3a\u5bbf\u4e3b\u673a\u7684 1\/4&#xff08;\u5373 64GB&#xff09;&#xff0c;\u77ac\u95f4\u7a81\u7834\u4e86\u5bb9\u5668 8GB \u7684 Cgroup \u9650\u5236&#xff1b;<\/li>\n<li>\u751f\u4ea7\u89e3\u6cd5&#xff1a;\u5347\u7ea7 JDK 17&#043;&#xff0c;\u663e\u5f0f\u914d\u7f6e\u52a8\u6001\u5bb9\u5668\u5185\u5b58\u611f\u77e5\u6807\u5fd7&#xff1a;JAVA_OPTS&#061;&#034;-XX:&#043;UseContainerSupport -XX:MaxRAMPercentage&#061;75.0 -XX:InitialRAMPercentage&#061;75.0&#034;\n<\/li>\n<\/ul>\n<h3>\u751f\u4ea7\u7ea7 Pod \u907f\u5751\u9ec4\u91d1\u914d\u7f6e\u6a21\u677f&#xff08;Golden Template&#xff09;<\/h3>\n<p>apiVersion: apps\/v1<br \/>\nkind: Deployment<br \/>\nmetadata:<br \/>\n  name: robust-production-service<br \/>\n  namespace: ns-prod<br \/>\nspec:<br \/>\n  replicas: 4<br \/>\n  strategy:<br \/>\n    rollingUpdate:<br \/>\n      maxSurge: 25%<br \/>\n      maxUnavailable: 0 # \u6838\u5fc3&#xff1a;\u4e25\u7981\u65e0\u53ef\u7528\u526f\u672c<br \/>\n  template:<br \/>\n    metadata:<br \/>\n      labels:<br \/>\n        app: robust-service<br \/>\n    spec:<br \/>\n      terminationGracePeriodSeconds: 45 # \u7ed9\u4e88\u5145\u8db3\u7684\u4f18\u96c5\u505c\u673a\u65f6\u95f4<br \/>\n      dnsConfig:<br \/>\n        options:<br \/>\n          &#8211; name: ndots<br \/>\n            value: &#034;2&#034;<br \/>\n      containers:<br \/>\n      &#8211; name: app<br \/>\n        image: registry.internal.net\/prod\/app:v4.2<br \/>\n        lifecycle:<br \/>\n          preStop:<br \/>\n            exec:<br \/>\n              command: [&#034;\/bin\/sh&#034;, &#034;-c&#034;, &#034;sleep 15&#034;] # \u9632 502 \u6d41\u91cf\u9ed1\u6d1e<br \/>\n        readinessProbe: # 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