0x00 序 昨天吃过晚饭，我正躺在床上玩手机。 突然领导微信甩来一张截图： 怎么回事？线上系统无法登录？ 我心里一登，意识到生产环境有情况！立马坐起来，赶紧远程到公司电脑，再通过 ssh 登录生产服务器。操作刚落，领导补充

0x00 序 二分查找（Binary Search）是一种常见的查找算法，虽然在实际工作中，多是使用语言的标准库中已有的查找函数，手写它的时间并不多。 实际上，二分查找要求列表内的元素有序，对于无序的非字典列表，要

才想起来我还有个博客，好久没写东西了… 于是换了个皮肤… 有空要好好总结一下了！（立 Flag

1. The progress that I achieved 1.1. Technically After plenty of projects, I had a deeper understanding of software development. ASP.Net Core is the mainly framework of developing a web application which I often use. I learned a lot from its design, for example, the middlewares, the dependency injection. Alse I wrote some Nuget packages for our team to improve their development efficiency. At the begining of 2019, our team shrinks to only one developer. Apparently, the developer is me. Those days I work that hard and when I came to office, I jumped into the code for hours, even

0. Intro Prometheus 是基于 pull 模式的监控系统，需要在被监控处设置各种 Exporter，通过获取输出的信息，Prometheus 存储到对应的 index 中。 1. 示例：从 Node Exporter 收集监控数据 官方提供了一些 exporter，为一些基础指标