Node Operator: Kubernetes Node Management Made Simple 陈俊(Joe), Ant Financial Agenda • Background and Motivation • Introduction of Operators • Node-Operator • Advanced Topic: Teardown Cluster fast and convenient • Add & delete Node at any time • Upgrade Master & Node Components reliably • Canary Rollout • Master & Node Component Versions Management Motivation: Work Order Order Deployment Worker Order • Upgrade Nodes Versions • Upgrade Node 10.10.10.1 • Upgrade docker • Upgrade kubelet • Upgrade Node 10.10.10.2 • Upgrade docker • Upgrade kubelet …. Motivation: Work Order

Lecture Notes on Support Vector Machine Feng Li fli@sdu.edu.cn Shandong University, China 1 Hyperplane and Margin In a n-dimensional space, a hyper plane is defined by ωT x + b = 0 (1) where ω ∈ Rn the margin is defined as γ = min i γ(i) (6) 1 ? ? ! ? ! Figure 1: Margin and hyperplane. 2 Support Vector Machine 2.1 Formulation The hyperplane actually serves as a decision boundary to differentiating samples are so-called support vector, i.e., the vectors “supporting” the margin boundaries. We can redefine ω by w = � s∈S αsy(s)x(s) where S denotes the set of the indices of the support vectors 4 Kernel

Lecture 6: Support Vector Machine Feng Li Shandong University fli@sdu.edu.cn December 28, 2021 Feng Li (SDU) SVM December 28, 2021 1 / 82 Outline 1 SVM: A Primal Form 2 Convex Optimization Review parallely along ω (b < 0 means in opposite direction) Feng Li (SDU) SVM December 28, 2021 3 / 82 Support Vector Machine A hyperplane based linear classifier defined by ω and b Prediction rule: y = sign(ωTx Scaling ! and " such that min& ' & !() & + " = 1 Feng Li (SDU) SVM December 28, 2021 14 / 82 Support Vector Machine (Primal Form) Maximizing 1/∥ω∥ is equivalent to minimizing ∥ω∥2 = ωTω min ω,b ωTω

Node 的设计错误 Ryan Dahl JS Conf 柏林林 2018.06 背景: 1. 基于最初的开发，我创建了了并管理理 Node。 2. 我的主要关注⽬目标是事件驱动的 HTTP server。 3. 这⼀一主要⽬目标对当时服务器器端的 JavaScript 起着关键作⽤用。即使在当时这⼀一点不不 那么明显，但是服务器器端 JS 的成功需要事件循环的助⼒力力。 的成功需要事件循环的助⼒力力。 背景: 2012 年年我离开 Node 项⽬目的时候，当时我觉得 Node（或多或少）实现了了我的预定 ⽬目标：创建⼀一个⽤用户友好的⾮非阻塞框架，具体内容如下 1 核⼼心⽀支持许多协议：HTTP，SSL... 2. 在 Windows（使⽤用 IOCP）Linux（EPOLL）和MAC（KQuey）上跨平台⼯工作。 3. ⼀一个⽐比较稳定的相对较⼩小的核⼼心API。 4. 通过 NPM 增加外部模块的⽣生态系统。 但我错了了...因为还有许多问题仍待解决..... 使得 Node 保持增⻓长的⼏几项关键⼯工作 1. NPM（Isaac 开发）将核⼼心 Node 库解耦并允许⽣生态系统的分布。 2. N-API 是设计精美的绑定API。 3. Ben Noordhuis 和 Bert Belder 构建了了 libuv。 4.

1 Table of Contents Preface The Node.js Handbook Conclusion 2 Preface The Node.js Handbook follows the 80/20 rule: learn in 20% of the time the 80% of a topic. In particular, the goal is to get get you up to speed quickly with Node.js. This book is written by Flavio. I publish programming tutorials on my blog flaviocopes.com and I organize a yearly bootcamp at bootcamp.dev. You can reach me The Node.js Handbook 1. Introduction to Node.js 1.1. Node.js has a vast number of libraries 1.2. An example Node.js application 1.3. Node.js frameworks and tools 2. A brief history of Node.js 2

Node.js - the core Mark Volkmann mark@ociweb.com Object Computing, Inc. April 21, 2012 Node.js Overview ... “Node's goal is to provide an easy way to build scalable network programs.” http://nodejs building “servers” “The official name of Node is "Node". The unofficial name is "Node.js" to disambiguate it from other nodes.” https://github.com/joyent/node/wiki/FAQ Runs on top of Chrome V8 (see next Joyent 2 passed control of the project to Isaac Schlueter on 1/30/12 a cartoon from substack Node.js ... Overview Event-based rather than thread-based; can use multiple processes Assumes most time

Node 在有赞的实践 KK 1 • 一、Node 基础框架的迭代与演进 • 二、Node 接入有赞服务化体系的历程 • 三、未来需要做的一些事情 2 3 Koa 中间件 有⼈人（有赞的⼀一个内部管理理系统） 第⼀一个 Node 项⽬目 4 Koa 中间件 有⼈人（有赞的⼀一个内部管理理系统） 第⼆二个 Node 项⽬目 脚⼿手架模板 有赞官⽹网 5 诞⽣生 有赞官⽹网 Astroboy 阿童⽊木 有赞招聘 有赞云官⽹网 Koa + 中间件 脚⼿手架模板 阿童⽊木 0.0.1 6 Koa 中间件 有⼈人 很多项⽬目都开始⽤用 Node 了了 有赞官⽹网 Astroboy 阿童⽊木 有赞招聘 有赞云官⽹网 云控制台 分销 中间件 中间件 7 Koa 交易易 店铺 Astroboy 阿童⽊木 ⽤用户 营销 有赞官⽹网 目前有哪些重要业务用了 Node • 1、订单详情（灰度白名单） • 2、下单（灰度白名单） • 3、微页面（灰度白名单） • 4、有赞云、有赞官网、分销等等 8 二、Node 接入有赞服务化体系的历程 9 10 模板渲染 业务编排 接⼝口转发 业务逻辑 服务接⼝口 服务化 Node.js 11 如何调⽤用？ Node.js 12 ⽅方案 2：Node 直接⽀支持

Node.js Manual & Documentation 项目网址：http://cnodejs.org Pdf 发布：Lenzhang Table Of Contents  Synopsis 概要  Global Objects 全局对象 o global o process o require() o require.resolve() 核心模块 o File Modules 文件模块 o Loading from `node_modules` Folders 从 `node_modules` 目录中 加载  Optimizations to the `node_modules` Lookup Process 优化 `node_modules` 的查找过程 o Folders as Modules 目录作为模块 Modules 附录 1 - 第三方模块 Synopsis 概要 An example of a web server written with Node which responds with 'Hello World': 下边是一个用 Node 编写的对所有请求简单返回'Hello World‘的 web 服务器例 子： var http = require('http');

1 Shiro support for the Spring Security plugin Table of contents 2 Shiro support for the Spring Security plugin - Reference Documentation Authors: Burt Beckwith Version: 0.1 Table of Contents 1 History 2 Usage 3 Configuration 3 1 Introduction The Spring Security Shiro plugin adds some support for using a hybrid approach combining Spring Security and . It currently only supports Shiro ACLs

1 Shiro support for the Spring Security plugin Shiro support for the Spring Security plugin - Reference Documentation Authors: Burt Beckwith Version: 1.0.0 Table of Contents 1 Introduction to the 1 Introduction to the Spring Security Shiro Plugin The Spring Security Shiro plugin adds some support for using a hybrid approach combining Spring and . It currently only supports Shiro ACLs, since