背景 node是单线程应用，单线程最大的弊端就是无法利用多核CPU带来的优势来提升运行效率。 pm2（process manager）是一个进程管理工具，可以用它来管理node进程，负责所有的node进程，并查看node进程的状态，也支持性能监控，负载均衡等功能。 pm2优势内建负载均衡：pm2使用Node.js的cluster模块，可以在服务器上的所有CPU核心上运行多个应用实例...

文章 2019-04-13 来自：开发者社区

Node.js 应用故障排查手册 —— 类死循环导致进程阻塞

楔子在实践篇一中我们看到了两个表象都是和 CPU 相关的生产问题，它们基本也是我们在线上可能遇到的这一类问题的典型案例，而实际上这两个案例也存在一个共同点：我们可以通过 Node.js 性能平台导出进程对应的 CPU Profile 信息来进行分析定位问题，但是实际在线上的一些极端情况下，我们遇到的故障是没有办法通过轻量的 V8 引擎暴露的 CPU Profile 接口（仅...

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