<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>抢占 on Zhao Xue</title><link>https://xuezhaojun.github.io/tags/%E6%8A%A2%E5%8D%A0/</link><description>Recent content in 抢占 on Zhao Xue</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Fri, 24 Apr 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://xuezhaojun.github.io/tags/%E6%8A%A2%E5%8D%A0/index.xml" rel="self" type="application/rss+xml"/><item><title>从一次 Pod Pending 但节点资源充足聊起：彻底搞懂 K8s 调度器原理</title><link>https://xuezhaojun.github.io/collections/k8s-internals/k8s-scheduler/</link><pubDate>Fri, 24 Apr 2026 00:00:00 +0000</pubDate><guid>https://xuezhaojun.github.io/collections/k8s-internals/k8s-scheduler/</guid><description>kubectl describe pod 显示 0/5 nodes available: Insufficient cpu，但 kubectl top nodes 显示 CPU 使用率才 30%。排查过程揭开调度器的全部秘密：Scheduler Framework 的完整扩展点链、Filter 和 Score 的内置插件、抢占机制、以及 TopologySpread 的死锁陷阱。</description></item></channel></rss>