It’s that time again to choose the tool or technology that we want to brush up on. If you feel like you’ve been working hard at building but maybe not learning as much as you’d like, I’ve got your back covered. Please enjoy the fifth installment of o…

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This chapter describes in detail the troubleshooting tools that are available in JDK 7. In addition, the chapter lists operating-system-specific tools that may be used in conjunction with these troubleshooting tools. Finally, the chapter explains how…

Launches a Java application. Synopsis java [options] classname [args] java [options] -jar filename [args] javaw [options] classname [args] javaw [options] -jar filename [args] options Command-line options separated by spaces. See Options. classname T…

目录: 一.hadoop2.2.0.zookeeper3.4.5.hbase0.96.2.hive0.13.1都是什么? 二.这些软件在哪里下载? 三.如何安装 1.安装JDK 2.用parallels克隆3台机器 3.安装Zookeeper-3.4.5 4.安装hadoop2.2.0 5.启动zookeeper 6.启动JournalNode集群 7.Hbase-0.96.2-hadoop2(启动双HMaster的配置,m1是主HMaster,m2是从HMaster) 8.在ubuntu12.…

原文链接: https://github.com/dypsilon/frontend-dev-bookmarks Frontend Development Looking for something else? Take a look at the awesome collection of other awesome lists. Guides Bento: a collection of guides for web development. Hack Design: An easy to…

因项目需要,需要使用sonarQube对代码进行扫描并查看,因对sonarQube不熟悉,所以先在本机进行查看. 参考了张老师的博客:http://www.cnblogs.com/danzhang/p/5205610.html 参考百度文库文章:http://wenku.baidu.com/view/088e5b1b6edb6f1aff001fc0.html?from=search 运行sonarQube之前,需要本机已经安装JDK及mysql JDK:因为sonarQube是使用Java开发的…

目录 目录 1.前言 1.1.什么是 Hadoop? 1.1.1.什么是 YARN? 1.2.什么是 Zookeeper? 1.3.什么是 Hbase? 1.4.什么是 Hive 1.5.什么是 Spark? 2.环境准备 2.1.网络配置 2.2.更改 HOSTNAME 2.3.配置 SSH 免密码登录登录 2.4.关闭防火墙 2.7.安装 NTP 3. 下载应用程序及配置环境变量 3.1.创建安装目录 3.2.下载本文中用到的程序 3.3.设置环境变量 4. 安装 Oracle JDK 1.…

1)首先配置好了四个linux虚拟机 root pwd:z****l*3 关闭了防火墙 开通了 sshd服务 开通了 ftp服务 配置了 jdk 1.8 配置好了互信 (之前配置的过程忘了!--检查了一下可以) 注意 /etc/hosts 中需配置主机名(每台都要设置) 注意 互信建立时 第一次连接会提示要输入yes才行,即使用ip试过 换了主机名同样会在换过主机名后的第一次 提示输入yes 所以最后 用主机名试一下 scp linux版本是 Fedora release 22 (Twenty…

在java代码中,使用HttpClient爬取https页面时,遇到了这个bug:javax.net.ssl.SSLException: Received fatal alert: protocol_version 先奉上初始的代码: 1 /** 2 * 3 */ 4 package com.tcl.mibc.weathercrawler; 5 6 import org.apache.http.HttpEntity; 7 import org.apache.http.HttpException;…