why? 过得关注自己情绪 抗拒负面情绪(痛快，愤怒)，想消除负面情绪，产生冲突。 how? 接收自己的情绪,它是一种普遍的存在 做自己该做的事情。

what: 架构方法， why: 分离关注: 各司其职=2. 易测试 basic rule testable: each layer must TDD test driven development basic rule Independent testable how make interface through each year; domain respon repository

7天用Go从零实现RPC框架GeeRPC 一文吃透何为微服务、网关、服务发现/注册？ Microservices vs SOA: What’s the Difference? 什么是微服务？ basic what’s micro: 一系列自治(autonomous)的服务(进程)共同完成任务: 拆分 and 治理 自治: 独立开发 独立运行: 独立完成某项任务 有自己的db,cache 独立部署: 运行在独立容器里 key characteristic: 高度解耦 去中心化管理 方便更新， 方便开发 micro vs soa: 粒度不同: soa: 粒度较大，服务于整个企业 micro: 粒度较小，只服务于单个应用 通信方式: soa: 基于ebs micro: restful or grpc 部署方式: soa: 自建的发布平台 micro: 基于cloud platform micro vs distributed system: same: 微服务是一种特殊的分布式系统 目标不同: micro: 解耦 distrubited: 协作 micro vs k8s: micro 是一种架构范式， k8s是实现micro 的平台之一 architecture gateway

explain it in simply way fill the gap: go back to the source material if you get stuck simplify further how to simplify: break it down in simple words, avoiding jargon using analogy give example the principle: the process is a active learning process, which have more effective leading on a deeper understand of knowledges, not relay on memorization why not use jargon: using jargon can lead to shallow understanding or rely on memorization

linux signal an important event happen; send by kernel or other process(shell command); the list of signal 1 up: hang up 2 int (ctrl + c) 3 quit (ctrl + ) 9 kill: can’t be caught and ignreo 15 termination graceful stop go how: stop all open and idle resouce wait running work to finish http server: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 package main import ( "context" "log" "net/http" "os" "os/signal" "time" ) func main() { srv := &http.

1. what is yum and rpm rpm is redhat package manager yum: yellow dog updater,modified same: they both package manage difference: rpm in low level; yum in high level; yum can resolve dependency 1 2 3 4 5 6 7 ======================== Package Arch Version Repository Size ============================================================= Installing: java-11-openjdk-devel x86_64 1:11.0.11.0.9-2.el8_4 Installing dependencies: adwaita-cursor-theme noarch 3.28.0-2.el8 appstream 647 k rpm repository 1 2 3 4 5 6 7 8 [elasticsearch-7.x] name=Elasticsearch repository for 7.