在一次异常重启后，Ceph 集群出现了 PG 状态异常、部分 RBD 镜像无法正常启动等问题。本文记录了从 PG 状态检查、unfound object 定位、RBD 镜像关联分析，到后续 OSD 异常处理和业务数据恢复的完整排查过程。 一、事故背景 在一次异常重启后，Ceph 集群出现了 PG ...

Every year, hundreds of thousands of South African learners sit their final matric exams and face the same question the ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Java is best for large, secure, long-term enterprise systems with a strong type-safe guarantee. JavaScript dominates web development and supports both frontend and backend applications. Both languages ...

前端的第四门语言？ 前端开发的基石历来是 HTML、CSS 和 Java。然而，在面对日益复杂的 Web 应用时，Java 的某些固有劣势开始显现。正是在这一背景下，WebAssembly应运而生，正试图成为定义前端的第四门语言。 当今前端 Java 的劣势 Java 的成功源于其灵活与动态，但 ...

几年前做前端，HTML、CSS 和 Java 被誉为「前端三剑客」，是很多入坑的开发者逃不开避不掉的技术。其中，HTML 负责搭建架子、CSS 负责视觉美化、Java 则主攻网页交互，三者缺一不可。 不过最近，一位名叫 Benjamin Aster 的开发者却玩了波「反套路」—— 他竟然用纯 ...

Community driven content discussing all aspects of software development from DevOps to design patterns. The best place to start a career as a software engineer is in the web development space.

This repository is a treasure trove of educational resources designed to empower students and technology enthusiasts to embark on a journey of learning and discovery. Whether you're a novice eager to ...

HTMX is the HTML extension syntax that replaces JavaScript with simple markup. It could change the course of web development. HTMX lets you use an extended HTML syntax instead of JavaScript to achieve ...