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I. Explanation _ 2. Installation of Virtual Machine (CentOS 7 is used in this paper) _1. In this paper, CetnOS7 installation and deployment is adopted.   2. jdk1.8   3. Hadoop 2.7.3 hostname ip master 10.10.1.3 slave1 10.10.1.4 3. Install jdk, configure firewall, SSH Modify hostname There is a big difference ...

Common commands git --version View version information git config --global user.name = "name" Configure User Name git config --global user.email = "xxx@xxx.com" Configure user mailbox cd: Switch the working directory. change directory pwd: Print the working directory. print work directory ls: View the contents of the specif ...

Source environment will be built recently. There was no ready-made environment, so we had to build it ourselves. Based on Ubuntu 14.04. Other versions of Ubuntu are theoretically available. Follow-up in collating again about Git Build under Server Android Source version management.   Ad locum git The benefits of version management are n ...

1. Introduction to rsync rsync is a tool for synchronous backup of full and incremental local or remote data mirrors   Common command parameters for rsync Description of command parameter parameters - a (- archive) archive mode, which means that files are transmitted recursively and all file attributes are preserved, equal to rtopgDl - V (- ...

Recently, the course is a little tight, so I put aside the study of SSH temporarily, and wait a little less time to start the follow-up of SSH blog. This semester's JAVA course has learned the chapters of graphical user interface, and began to contact awt and swing learning. I want to use the knowledge I learned to design a login interface th ...

Statement:This blog is welcome to forward, but please keep the original author's information!Blog address: http://blog.csdn.net/halcyonbaby Sina Weibo: @Looking for Miracles The content is my study, research and summary. If there are similarities, it is my honor! ================== Docker exec and Docker attach Whether a dev ...

In practice, it is not enough to use a single Docker node in the production environment, so it is imperative to build a Docker cluster. However, in the face of many container cluster systems such as Kubernetes, Mesos and Swarm, how do we choose? Among them, Swarm is Docker's native, but also the simplest, easiest to learn, the ...

Preface Asynchronous loading of AJAX has always been a platitudinal topic. When it comes to AJAX, the most important thing to think about is its asynchronous loading. Recently, the editor let the asynchronous loading of AJAX play a role in the project. Let's see how it demonstrates its ability. Narration Asynchronous loading of AJAX: A techn ...

1. Installation environment CentOS 6.8 Virtual Machine Three 1G per memory 50G per hard disk 2. Installation packages required CDH5.9.0 Installation Package Files included: Parcel contains files: Files included in rpms: Before you start the installation below, make sure the number of files is correct 3. Installation steps First, ...

Tencent Yun ubuntu 16.04.1 LTS 64 bits Linux operation Modify the password of root sudo passwd root Log off users logout Close the firewall ufw disable Uninstall iptables components apt-get remove iptables Download vim components (for text editing) apt-get install vim Word change sudo dpkg-reconfigure console-setu ...