<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[qq_44823950的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/qq_44823950</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; qq_44823950]]></copyright><item><title><![CDATA[shell面试题大全]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/166463851</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/166463851</guid><author>qq_44823950</author><pubDate>Wed, 23 Sep 2026 10:32:06 +0800</pubDate><description><![CDATA[本文整理Shell方向的系统运维面试题共 22 道,覆盖 3 个方向:脚本基础 / 文本处理 / 实战场景。]]></description><category></category></item><item><title><![CDATA[devops面试题大全]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/166463505</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/166463505</guid><author>qq_44823950</author><pubDate>Wed, 23 Sep 2026 10:28:52 +0800</pubDate><description><![CDATA[本文整理DevOps方向的系统运维面试题共 40 道,覆盖 9 个方向:CI/CD / 监控告警 / 自动化运维 / 日志平台 / 发布与回滚 / Git 与版本管理 / 故障应急 / 基础设施即代码 / 代码扫描与制品安全。]]></description><category></category></item><item><title><![CDATA[云原生面试题大全]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/166463326</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/166463326</guid><author>qq_44823950</author><pubDate>Wed, 23 Sep 2026 10:27:37 +0800</pubDate><description><![CDATA[可变基础设施:服务器出问题就登录上去修(装包/改配置),机器越用越"脏",环境差异累积。不可变基础设施:实例一旦创建绝不修改,有问题直接销毁重建新实例(镜像+配置重新生成)。环境完全一致,告别"我这跑得好好的"升级=换新实例,回滚=切旧版本,天然可追溯漂移消失,安全基线统一。]]></description><category></category></item><item><title><![CDATA[Linux面试题大全]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/166463008</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/166463008</guid><author>qq_44823950</author><pubDate>Wed, 23 Sep 2026 10:25:46 +0800</pubDate><description><![CDATA[2(SIGINT):Ctrl+C,前台中断15(SIGTERM):优雅终止,进程可做清理后退出——先用它9(SIGKILL):直接杀死,进程来不及清理(内核强杀)1(SIGHUP):终端断开,常被守护进程用作"重载配置"(如 nginx -s reload)为什么 -9 是最后手段:加分:答出"先 -15 观察,超时再 -9",以及发布平台优雅下线(preStop)的原理。硬中断:硬件通知 CPU(如网卡收到包),必须快进快出。]]></description><category></category></item><item><title><![CDATA[运维中间件面试题大全]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/166462440</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/166462440</guid><author>qq_44823950</author><pubDate>Wed, 23 Sep 2026 10:20:55 +0800</pubDate><description><![CDATA[本文整理中间件方向的系统运维面试题共 75 道,覆盖 19 个组件:Redis / MySQL / Kafka / RabbitMQ / RocketMQ / Nginx / Elasticsearch / ZooKeeper / Nacos / Seata / MongoDB / PostgreSQL / ClickHouse / 时序数据库 / XXL-Job / 负载均衡 / Tomcat / 对象存储 / EMQX。热 key:单位时间被超高并发访问的 key。]]></description><category></category></item><item><title><![CDATA[运维 Shell 脚本实战:10 个高频场景脚本(附代码)]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/166362368</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/166362368</guid><author>qq_44823950</author><pubDate>Tue, 22 Sep 2026 14:13:00 +0800</pubDate><description><![CDATA[整理 10 个生产可用的运维 Shell 脚本:磁盘告警、日志清理、Nginx 日志统计、进程存活自动拉起、批量 SSH 并发执行、MySQL 备份保留、端口批量探测、系统信息采集、大日志按时间切割、定时任务防重复执行。每个脚本附完整代码与关键点说明。]]></description><category></category></item><item><title><![CDATA[运维面试 20 道真题复盘:从 Redis 锁到 K8s 排障(建议收藏)]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/166362227</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/166362227</guid><author>qq_44823950</author><pubDate>Tue, 22 Sep 2026 14:08:53 +0800</pubDate><description><![CDATA[精选 20 道系统运维面试真题,覆盖中间件、云原生、监控告警、故障应急、开放题五大方向:Redis 分布式锁的坑、MySQL 主从延迟、Kafka rebalance、Nginx 限流、ES 深分页、RocketMQ 事务消息、K8s Pending 排查、Prometheus 为什么用拉取、P1 告警黄金 30 分钟等,每题给答题要点。热 key:单位时间被超高并发访问 → 本地缓存/多级缓存、热点 key 打散加后缀、读写分离分摊big key。]]></description><category></category></item><item><title><![CDATA[K8s 生产排障实战:10 个高频故障与排查命令(建议收藏)]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/166361824</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/166361824</guid><author>qq_44823950</author><pubDate>Tue, 22 Sep 2026 14:05:38 +0800</pubDate><description><![CDATA[整理 K8s 生产环境十类高频故障:Pending、CrashLoopBackOff、ImagePullBackOff、OOMKilled、Service 不通、Ingress 报错、节点 NotReady、磁盘压力驱逐、滚动发布抖动、DNS 解析失败。每类给出排查命令、常见根因与处理方式,附 kubectl 速查表。]]></description><category></category></item><item><title><![CDATA[线上故障排查实战:5 个经典场景的完整排查链路(运维面试必问)]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/166361372</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/166361372</guid><author>qq_44823950</author><pubDate>Tue, 22 Sep 2026 13:54:03 +0800</pubDate><description><![CDATA[CPU 飙高、容器 OOM、磁盘满了、502/504、慢查询突增——这 5 个场景几乎覆盖了 80% 的线上故障。本文给出每个场景的完整排查链路、止损动作和面试答法,文末附自用刷题小程序。]]></description><category></category></item><item><title><![CDATA[运维/SRE 面试复盘:18 道高频题的知识点拆解(附题库)]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/166360951</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/166360951</guid><author>qq_44823950</author><pubDate>Tue, 22 Sep 2026 13:49:52 +0800</pubDate><description><![CDATA[整理运维/SRE/DevOps 面试高频考点:Redis 缓存三兄弟、MySQL 索引与隔离级别、Kafka 消息可靠性、Nginx 502/504、ES 深分页、K8s 排障、Linux 性能排查等,每题给出答题要点与排查路径,文末附自用刷题小程序。]]></description><category></category></item><item><title><![CDATA[【云原生 | kubernetes】kubeadm部署kubernetes（k8s）1.25.2基于containerd]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/127496931</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/127496931</guid><author>qq_44823950</author><pubDate>Mon, 24 Oct 2022 17:26:21 +0800</pubDate><description><![CDATA[【云原生 | kubernetes】kubeadm部署kubernetes(k8s)1.25.2基于containerd]]></description><category></category></item><item><title><![CDATA[Linux free 命令]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/127496872</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/127496872</guid><author>qq_44823950</author><pubDate>Mon, 24 Oct 2022 17:23:13 +0800</pubDate><description><![CDATA[linux free命令详解]]></description><category></category></item><item><title><![CDATA[ansible shell 模块]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/127167178</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/127167178</guid><author>qq_44823950</author><pubDate>Tue, 04 Oct 2022 22:05:58 +0800</pubDate><description><![CDATA[ansible shell模块详解]]></description><category></category></item><item><title><![CDATA[ansible service 模块]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/127167171</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/127167171</guid><author>qq_44823950</author><pubDate>Tue, 04 Oct 2022 22:05:27 +0800</pubDate><description><![CDATA[ansible service模块详解]]></description><category></category></item><item><title><![CDATA[ansible script 模块]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/127167161</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/127167161</guid><author>qq_44823950</author><pubDate>Tue, 04 Oct 2022 22:04:56 +0800</pubDate><description><![CDATA[ansible script模块详解]]></description><category></category></item><item><title><![CDATA[ansible ping 模块]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/127167153</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/127167153</guid><author>qq_44823950</author><pubDate>Tue, 04 Oct 2022 22:04:23 +0800</pubDate><description><![CDATA[ansible ping模块详解]]></description><category></category></item><item><title><![CDATA[ansible firewalld 模块]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/127167148</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/127167148</guid><author>qq_44823950</author><pubDate>Tue, 04 Oct 2022 22:03:52 +0800</pubDate><description><![CDATA[ansible firewalld模块详解]]></description><category></category></item><item><title><![CDATA[ansible file 模块]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/127167140</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/127167140</guid><author>qq_44823950</author><pubDate>Tue, 04 Oct 2022 22:03:22 +0800</pubDate><description><![CDATA[ansible file模块详解]]></description><category></category></item><item><title><![CDATA[ansible fetch 模块]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/127167131</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/127167131</guid><author>qq_44823950</author><pubDate>Tue, 04 Oct 2022 22:02:51 +0800</pubDate><description><![CDATA[ansible fetch模块详解]]></description><category></category></item><item><title><![CDATA[ansible cron 模块]]></title><link>https://blog.youkuaiyun.com/qq_44823950/article/details/127167118</link><guid>https://blog.youkuaiyun.com/qq_44823950/article/details/127167118</guid><author>qq_44823950</author><pubDate>Tue, 04 Oct 2022 22:02:20 +0800</pubDate><description><![CDATA[ansible cron模块详解]]></description><category></category></item></channel></rss>