In this lesson we'll show how to use yarn to alias the names of same npm libraries but install different versions. This could allow for easy migrating from one library version to an upgraded version. You can install lib by using Yarn and give the lib…

1. What is the recommended value for "yarn.nodemanager.resource.local-dirs"? We only have one value (directory) configured for the above property, which has a size of 200GB. Our hive jobs' map/reduce fill this folder up, and yarn places this nod…

<?xml version="1.0"?> <!-- Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses…

yarn global add & add -D https://yarnpkg.com/zh-Hans/docs/cli/add#toc-commands $ yarn global add <package...> $ yarn add <package...> [--dev/-D]…

第一行忘记加分号 pragma solidity ^0.4.0;…

转发自: https://yarnpkg.com/blog/2018/06/04/yarn-import-package-lock/?utm_source=tuicool&utm_medium=referral Posted Jun 4, 2018 by Aram Drevekenin For a while now, the JavaScript ecosystem is a host to a few different dependency lock file formats, inclu…

yarn 1.7(目前最新的版本)支持npm 的package-lock.json 了 环境准备 安装更新yarn sudo npm install -g yarn 查看版本 yarn version npm基本项目初始化 npm 项目初始化 npm install -y npm install shortid --save 生成的项目结构 node_modules package-lock.json package.json yarn 使用package-lock. yarn import 命…

npm init & npx create & yarn create https://create-react-app.dev/docs/getting-started/#creating-an-app npm init https://docs.npmjs.com/cli/init $ npm init [--force|-f|--yes|-y|--scope] $ npm init <@scope> (same as `npx <@scope>/create`…

本文主要参考: a. https://www.cnblogs.com/yy3b2007com/p/10934090.html 0. 说明 a. 关于spark源码会不定期的更新与补充 b. 对于spark源码的历史博文,也会不定期修改.增加.优化 c. spark源码对应的spark版本为2.4.1 1. 引导 该篇主要讲解执行spark-submit.sh脚本时将任务提交给Yarn阶段代码分析.其中spark的代码版本为2.4.1. (1) spark-submit的入口函数 一般提交一个sp…

文章目录 一 MapReduce概念 1.1 为什么要MapReduce 1.2 MapReduce核心思想 1.3 MapReduce进程 1.4 MapReduce编程规范(八股文) 1.5 MapReduce程序运行流程分析 二 MapReduce理论篇 2.1 Writable序列化 2.1.1 常用数据序列化类型 2.1.2 自定义bean对象实现序列化接口 2.2 InputFormat数据切片机制 2.2.1 FileInputFormat切片机制 2.2.2 CombineTex…