http://blog.csdn.net/circyo/article/details/46724335

CentOS7.0安装配置hadoop2.7.0

资源准备

资源下载：

注意事项：

如果自己下载资源的话，注意hadoop,jdk,centos都应该是64位或者32位的，以免出现无法预料的错误，上面的资源都是64位的
我是在mac下配置的，virtual Box是ios x系统的，如果是其它系统的另外寻找资源下载安装

linux 虚拟机配置

系统配置：

虚拟机：一个master(Master.Hadoop),两个slave(Slave1.Hadoop,Slave2.Hadoop)
网络设置：我使用的是桥接的方式，因为只是实验性安装，我没有设置静态ip
内存：每个虚拟机配置1024M内存
分区：自动
软件选择：最小安装，注意选择开发工具
用户设置：密码都设置为:hadoophadoop,不创建任何用户，操作时使用root直接进行

额外软件安装：

centos7.0初始化时并没有ifconfig指令，需要使用下面两个指令进行安装：

<code class="hljs cmake has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">yum search ifconfg
yum <span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">install</span> net-tools.x86_64</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,221,221); list-style: none; text-align: right; background-color: rgb(238,238,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li></ul>

完成其它两个虚拟机的安装：

两个slave的hostname可以改成Slave1.Hadoop,Slave2.Hadoop，方便区分

安装完后各个虚拟机的ip配置(参考用)

主机	ip地址
master.hadoop	192.168.1.122
slave1.hadoop	192.168.1.125
slave2.hadoop	192.168.1.124

配置本地hosts

输入指令

<code class="hljs avrasm has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">vi /etc/hosts

// 将以下数据复制进入各个主机中

<span class="hljs-number" style="color: rgb(0,102,102); Box-sizing: border-Box;">192.168</span><span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.1</span><span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.122</span>   Master<span class="hljs-preprocessor" style="color: rgb(68,68,68); Box-sizing: border-Box;">.Hadoop</span>
<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.125</span>   Slave1<span class="hljs-preprocessor" style="color: rgb(68,102); Box-sizing: border-Box;">.124</span>   Slave2<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.Hadoop</span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li></ul>

使用以下指令对master主机中进行测试，可使用类似指令在slave主机测试

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102,102); Box-sizing: border-Box;">ping</span> Slave1<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.Hadoop</span>
<span class="hljs-built_in" style="color: rgb(102,102); Box-sizing: border-Box;">ping</span> Slave2<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.Hadoop</span>
</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li></ul>

配置Master无密码登录所有Salve

以下在Master主机上配置

输入以下指令生成ssh

<code class="hljs ruby has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">ssh-keygen

/<span class="hljs-regexp" style="color: rgb(0,136,0); Box-sizing: border-Box;">/ 会生成两个文件，放到默认的/root</span><span class="hljs-regexp" style="color: rgb(0,0); Box-sizing: border-Box;">/.ssh/</span>文件夹中</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li></ul>

把id_rsa.pub追加到授权的key里面去

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">cat ~/<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.ssh</span>/id_rsa<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.pub</span> >> ~/<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.ssh</span>/authorized_keys</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li></ul>

修改文件”authorized_keys”权限

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">chmod <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">600</span> ~<span class="hljs-regexp" style="color: rgb(0,0); Box-sizing: border-Box;">/.ssh/authorized</span>_keys</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li></ul>

设置SSH配置

<code class="hljs coffeescript has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">vi /etc/ssh/sshd_config

<span class="hljs-regexp" style="color: rgb(0,0); Box-sizing: border-Box;">//</span> 以下三项修改成以下配置

RSAAuthentication <span class="hljs-literal" style="color: rgb(0,102); Box-sizing: border-Box;">yes</span> <span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;"># 启用 RSA 认证</span>

PubkeyAuthentication <span class="hljs-literal" style="color: rgb(0,0); Box-sizing: border-Box;"># 启用公钥私钥配对认证方式</span>

AuthorizedKeysFile .ssh/authorized_keys <span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;"># 公钥文件路径（和上面生成的文件同）</span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li></ul>

重启ssh服务

<code class="hljs  has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">service sshd restart</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li></ul>

把公钥复制所有的Slave机器上

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">/<span class="hljs-regexp" style="color: rgb(0,0); Box-sizing: border-Box;">/ scp ~/</span>.ssh/id_rsa.pub 远程用户名@远程服务器<span class="hljs-constant" style="Box-sizing: border-Box;">IP</span><span class="hljs-symbol" style="color: rgb(0,102); Box-sizing: border-Box;">:~/</span>

scp ~<span class="hljs-regexp" style="color: rgb(0,0); Box-sizing: border-Box;">/.ssh/id</span>_rsa.pub root<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">@192</span>.<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">168.1</span>.<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">125</span><span class="hljs-symbol" style="color: rgb(0,102); Box-sizing: border-Box;">:~/</span>
scp ~<span class="hljs-regexp" style="color: rgb(0,102); Box-sizing: border-Box;">124</span><span class="hljs-symbol" style="color: rgb(0,102); Box-sizing: border-Box;">:~/</span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li></ul>

以下在Slave主机上配置

在slave主机上创建.ssh文件夹

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">mkdir ~/<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.ssh</span>

// 修改权限
chmod <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">700</span> ~/<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.ssh</span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li></ul>

追加到授权文件”authorized_keys”

<code class="hljs javascript has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">cat ~<span class="hljs-regexp" style="color: rgb(0,0); Box-sizing: border-Box;">/id_rsa.pub >> ~/</span>.ssh/authorized_keys

<span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;">// 修改权限</span>
chmod <span class="hljs-number" style="color: rgb(0,0); Box-sizing: border-Box;">/.ssh/</span>authorized_keys</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li></ul>

删除无用.pub文件

<code class="hljs rust has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">rm –r ~/id_rsa.<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">pub</span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li></ul>

在master主机下进行测试

<code class="hljs Nginx has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-title" style="Box-sizing: border-Box; color: rgb(0,136);">ssh</span> <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">192.168.1.125</span>
ssh <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">192.168.1.124</span>

// 如果能够分别无密码登陆slave1,slave2主机，则成功配置</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li></ul>

进行jdk,hadoop软件安装

jdk安装：

在/usr下创建java文件夹
使用以下指令从真机传入jdk-8u45-linux-x64.tar.gz文件到虚拟主机中

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">// 需要在真机中进入文件目录，地址为虚拟主机的ip地址

scp jdk-<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">8</span>u45-linux-x64<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.tar</span><span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.gz</span>  root<span class="hljs-localvars" style="Box-sizing: border-Box;">@192</span><span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.168</span><span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.122</span>:/usr/java
scp jdk-<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.125</span>:/usr/java
scp jdk-<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.124</span>:/usr/java</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li></ul>

使用以下指令进行加压

<code class="hljs lasso has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">tar zxvf jdk<span class="hljs-subst" style="color: rgb(0,0); Box-sizing: border-Box;">-</span><span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">8</span>u45<span class="hljs-attribute" style="Box-sizing: border-Box;">-linux</span><span class="hljs-attribute" style="Box-sizing: border-Box;">-x64</span><span class="hljs-built_in" style="color: rgb(102,102); Box-sizing: border-Box;">.</span>tar<span class="hljs-built_in" style="color: rgb(102,102); Box-sizing: border-Box;">.</span>gz

<span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;">// 解压后可以删除掉gz文件</span>
rm jdk<span class="hljs-subst" style="color: rgb(0,102); Box-sizing: border-Box;">.</span>gz</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li></ul>

配置jdk环境变量

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">vi   /etc/profile
</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li></ul>

添加Java环境变量

<code class="hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">
// 将以下数据复制到文件底部

<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">export</span> JAVA_HOME=/usr/java/jdk1.<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">8.0</span>_45

<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">export</span> JRE_HOME=/usr/java/jdk1.<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">8.0</span>_45/jre

<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">export</span> CLASSPATH=.:<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">$CLASSPATH</span>:<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">$JAVA_HOME</span>/lib:<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">$JRE_HOME</span>/lib

<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">export</span> PATH=<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">$PATH</span>:<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">$JAVA_HOME</span>/bin:<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">$JRE_HOME</span>/bin</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li></ul>

使配置生效

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",102); Box-sizing: border-Box;">source</span> /etc/profile</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li></ul>

验证安装成功

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">java <span class="hljs-attribute" style="Box-sizing: border-Box;">-version</span>

<span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;">// 如果出现以下信息，则配置成功</span>
java version <span class="hljs-string" style="color: rgb(0,0); Box-sizing: border-Box;">"1.8.0_45"</span>
Java(TM) SE Runtime Environment (build <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">1.8</span><span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.0</span>_45<span class="hljs-attribute" style="Box-sizing: border-Box;">-b14</span>)
Java HotSpot(TM) <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">64</span><span class="hljs-attribute" style="Box-sizing: border-Box;">-Bit</span> Server VM (build <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">25.45</span><span class="hljs-attribute" style="Box-sizing: border-Box;">-b02</span>,mixed mode)</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li></ul>

Hadoop安装

使用以下指令将hadoop-2.7.0.tar.gz文件复制到/usr目录下

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">scp hadoop-<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">2.7</span>.<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">0</span>.tar.gz  root<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">122</span><span class="hljs-symbol" style="color: rgb(0,102); Box-sizing: border-Box;">:/usr/</span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li></ul>

解压hadoop-2.7.0.tar.gz文件，并重命名

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">cd /usr
tar zxvf  hadoop-<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">2.7</span><span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.0</span><span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.gz</span>
mv hadoop-<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.0</span> hadoop

// 删除hadoop-<span class="hljs-number" style="color: rgb(0,68); Box-sizing: border-Box;">.gz</span>文件
rm –rf hadoop-<span class="hljs-number" style="color: rgb(0,68); Box-sizing: border-Box;">.gz</span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li></ul>

在”/usr/hadoop”下面创建tmp文件夹

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",102); Box-sizing: border-Box;">cd</span> /usr/hadoop
mkdir tmp</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li></ul>

把Hadoop的安装路径添加到”/etc/profile”中

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">vi /etc/profile

// 将以下数据加入到文件末尾

<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">export</span> HADOOP_INSTALL=/usr/hadoop  
<span class="hljs-keyword" style="color: rgb(0,102); Box-sizing: border-Box;">${HADOOP_INSTALL}</span>/bin:<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">${HADOOP_INSTALL}</span>/sbin<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">${PATH}</span>  
<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">export</span> HADOOP_MAPRED_HOME=<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">${HADOOP_INSTALL}</span>  
<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">export</span> HADOOP_COMMON_HOME=<span class="hljs-variable" style="color: rgb(102,136); Box-sizing: border-Box;">export</span> HADOOP_HDFS_HOME=<span class="hljs-variable" style="color: rgb(102,136); Box-sizing: border-Box;">export</span> YARN_HOME=<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">${HADOOP_INSTALLL}</span>  
<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">export</span> HADOOP_COMMON_LIB_NATIVE_DIR=<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">${HADOOP_INSTALL}</span>/lib/natvie    
<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">export</span> HADOOP_OPTS=<span class="hljs-string" style="color: rgb(0,0); Box-sizing: border-Box;">"-Djava.library.path=<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">${HADOOP_INSTALL}</span>/lib:<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">${HADOOP_INSTALL}</span>/lib/native"</span> </code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li></ul>

重启”/etc/profile”

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li></ul>

配置hadoop（先只在Master主机配置，配置完后传入两个Slave主机）

设置hadoop-env.sh和yarn-env.sh中的java环境变量

5022792" class="prettyprint" name="code" style="white-space: nowrap; word-wrap: break-word; Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",102); Box-sizing: border-Box;">cd</span> /usr/hadoop/etc/hadoop/
vi hadoop-env.sh

// 修改JAVA_HOME
<span class="hljs-keyword" style="color: rgb(0,102); Box-sizing: border-Box;">8.0</span>_45</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li></ul>

配置core-site.xml文件

<code class="hljs xml has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">vi core-site.xml

// 修改文件内容为以下
<span class="hljs-tag" style="color: rgb(0,102); Box-sizing: border-Box;"><<span class="hljs-title" style="Box-sizing: border-Box; color: rgb(0,136);">configuration</span>></span>

<span class="hljs-tag" style="color: rgb(0,136);">property</span>></span>

  <span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>hadoop.tmp.dir<span class="hljs-tag" style="color: rgb(0,102); Box-sizing: border-Box;"></<span class="hljs-title" style="Box-sizing: border-Box; color: rgb(0,136);">name</span>></span>

  <span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>/usr/hadoop/tmp<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>

  <span class="hljs-tag" style="color: rgb(0,136);">description</span>></span>A base for other temporary directories.<span class="hljs-tag" style="color: rgb(0,136);">description</span>></span>

  <span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>fs.default.name<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>hdfs://Master.Hadoop:9000<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>

 <span class="hljs-tag" style="color: rgb(0,136);">property</span>></span>
<span class="hljs-tag" style="color: rgb(0,136);">configuration</span>></span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li></ul>

配置hdfs-site.xml文件

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">vi hdfs-site.xml


// 修改文件内容为以下

<span class="hljs-tag" style="color: rgb(0,136);">configuration</span>></span>
        <span class="hljs-tag" style="color: rgb(0,136);">property</span>></span>
                <span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>dfs.namenode.name.dir<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>
                <span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>file:///usr/hadoop/dfs/name<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>
        <span class="hljs-tag" style="color: rgb(0,136);">property</span>></span>
        <span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>dfs.datanode.data.dir<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>file:///usr/hadoop/dfs/data<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>dfs.replication<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>1<span class="hljs-tag" style="color: rgb(0,136);">property</span>></span>

    <span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>dfs.nameservices<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>
        <span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>hadoop-cluster1<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>
    <span class="hljs-tag" style="color: rgb(0,136);">property</span>></span>
    <span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>dfs.namenode.secondary.http-address<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>Master.Hadoop:50090<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>dfs.webhdfs.enabled<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>true<span class="hljs-tag" style="color: rgb(0,136);">configuration</span>></span>
</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li><li style="Box-sizing: border-Box; padding: 0px 5px;">24</li><li style="Box-sizing: border-Box; padding: 0px 5px;">25</li><li style="Box-sizing: border-Box; padding: 0px 5px;">26</li><li style="Box-sizing: border-Box; padding: 0px 5px;">27</li><li style="Box-sizing: border-Box; padding: 0px 5px;">28</li><li style="Box-sizing: border-Box; padding: 0px 5px;">29</li><li style="Box-sizing: border-Box; padding: 0px 5px;">30</li><li style="Box-sizing: border-Box; padding: 0px 5px;">31</li><li style="Box-sizing: border-Box; padding: 0px 5px;">32</li><li style="Box-sizing: border-Box; padding: 0px 5px;">33</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li><li style="Box-sizing: border-Box; padding: 0px 5px;">24</li><li style="Box-sizing: border-Box; padding: 0px 5px;">25</li><li style="Box-sizing: border-Box; padding: 0px 5px;">26</li><li style="Box-sizing: border-Box; padding: 0px 5px;">27</li><li style="Box-sizing: border-Box; padding: 0px 5px;">28</li><li style="Box-sizing: border-Box; padding: 0px 5px;">29</li><li style="Box-sizing: border-Box; padding: 0px 5px;">30</li><li style="Box-sizing: border-Box; padding: 0px 5px;">31</li><li style="Box-sizing: border-Box; padding: 0px 5px;">32</li><li style="Box-sizing: border-Box; padding: 0px 5px;">33</li></ul>

配置mapred-site.xml文件

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"> vi mapred-site.xml 

 // 修改文件为以下

 <span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>mapreduce.framework.name<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>yarn<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>
                <span class="hljs-tag" style="color: rgb(0,136);">final</span>></span>true<span class="hljs-tag" style="color: rgb(0,136);">final</span>></span>
        <span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>mapreduce.jobtracker.http.address<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>Master.Hadoop:50030<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>mapreduce.jobhistory.address<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>Master.Hadoop:10020<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>mapreduce.jobhistory.webapp.address<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>Master.Hadoop:19888<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>mapred.job.tracker<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>http://Master.Hadoop:9001<span class="hljs-tag" style="color: rgb(0,136);">property</span>></span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li><li style="Box-sizing: border-Box; padding: 0px 5px;">24</li><li style="Box-sizing: border-Box; padding: 0px 5px;">25</li><li style="Box-sizing: border-Box; padding: 0px 5px;">26</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li><li style="Box-sizing: border-Box; padding: 0px 5px;">24</li><li style="Box-sizing: border-Box; padding: 0px 5px;">25</li><li style="Box-sizing: border-Box; padding: 0px 5px;">26</li></ul>

配置yarn-site.xml文件

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">vi yarn-site.xml

// 修改文件内容为以下

        <span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>yarn.resourcemanager.hostname<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>Master.Hadoop<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>yarn.nodemanager.aux-services<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>mapreduce_shuffle<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>yarn.resourcemanager.address<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>Master.Hadoop:8032<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>yarn.resourcemanager.scheduler.address<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>Master.Hadoop:8030<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>yarn.resourcemanager.resource-tracker.address<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>Master.Hadoop:8031<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>yarn.resourcemanager.admin.address<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>Master.Hadoop:8033<span class="hljs-tag" style="color: rgb(0,136);">name</span>></span>yarn.resourcemanager.webapp.address<span class="hljs-tag" style="color: rgb(0,136);">value</span>></span>Master.Hadoop:8088<span class="hljs-tag" style="color: rgb(0,136);">property</span>></span>
</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li><li style="Box-sizing: border-Box; padding: 0px 5px;">24</li><li style="Box-sizing: border-Box; padding: 0px 5px;">25</li><li style="Box-sizing: border-Box; padding: 0px 5px;">26</li><li style="Box-sizing: border-Box; padding: 0px 5px;">27</li><li style="Box-sizing: border-Box; padding: 0px 5px;">28</li><li style="Box-sizing: border-Box; padding: 0px 5px;">29</li><li style="Box-sizing: border-Box; padding: 0px 5px;">30</li><li style="Box-sizing: border-Box; padding: 0px 5px;">31</li><li style="Box-sizing: border-Box; padding: 0px 5px;">32</li><li style="Box-sizing: border-Box; padding: 0px 5px;">33</li><li style="Box-sizing: border-Box; padding: 0px 5px;">34</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li><li style="Box-sizing: border-Box; padding: 0px 5px;">24</li><li style="Box-sizing: border-Box; padding: 0px 5px;">25</li><li style="Box-sizing: border-Box; padding: 0px 5px;">26</li><li style="Box-sizing: border-Box; padding: 0px 5px;">27</li><li style="Box-sizing: border-Box; padding: 0px 5px;">28</li><li style="Box-sizing: border-Box; padding: 0px 5px;">29</li><li style="Box-sizing: border-Box; padding: 0px 5px;">30</li><li style="Box-sizing: border-Box; padding: 0px 5px;">31</li><li style="Box-sizing: border-Box; padding: 0px 5px;">32</li><li style="Box-sizing: border-Box; padding: 0px 5px;">33</li><li style="Box-sizing: border-Box; padding: 0px 5px;">34</li></ul>

配置Hadoop的集群

将Master中配置好的hadoop传入两个Slave中

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">scp -r /usr/hadoop  root<span class="hljs-variable" style="color: rgb(102,102); Box-sizing: border-Box;">:/usr/</span>
scp -r /usr/hadoop  root<span class="hljs-variable" style="color: rgb(102,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li></ul>

修改Master主机上的slaves文件

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">cd /usr/hadoop/etc/hadoop
vi slaves

// 将文件内容修改为
Slave1<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.Hadoop</span>
Slave2<span class="hljs-preprocessor" style="color: rgb(68,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li></ul>

格式化HDFS文件系统

<code class="hljs rsl has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;">// 在Master主机上输入以下指令</span>
hadoop namenode -<span class="hljs-built_in" style="color: rgb(102,102); Box-sizing: border-Box;">format</span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li></ul>

启动hadoop

<code class="hljs http has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">

<span class="avrasm" style="Box-sizing: border-Box;">// 关闭机器防火墙
service iptables stop

cd /usr/hadoop/sbin
./start-all<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.sh</span>

// 更推荐的运行方式：
cd /usr/hadoop/sbin
./start-dfs<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.sh</span>
./start-yarn<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.sh</span>

应该输出以下信息：

Starting namenodes on [Master<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.Hadoop</span>]
<span class="hljs-label" style="Box-sizing: border-Box;">Master.Hadoop:</span> starting namenode,logging to /usr/hadoop/logs/hadoop-root-namenode-localhost<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.localdomain</span><span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.out</span>
<span class="hljs-label" style="Box-sizing: border-Box;">Slave2.Hadoop:</span> starting datanode,logging to /usr/hadoop/logs/hadoop-root-datanode-Slave2<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.Hadoop</span><span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.out</span>
<span class="hljs-label" style="Box-sizing: border-Box;">Slave1.Hadoop:</span> starting datanode,logging to /usr/hadoop/logs/hadoop-root-datanode-Slave1<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.out</span>

starting yarn daemons
starting resourcemanager,logging to /usr/hadoop/logs/yarn-root-resourcemanager-localhost<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.out</span>
<span class="hljs-label" style="Box-sizing: border-Box;">Slave1.Hadoop:</span> starting nodemanager,logging to /usr/hadoop/logs/yarn-root-nodemanager-Slave1<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.out</span>
<span class="hljs-label" style="Box-sizing: border-Box;">Slave2.Hadoop:</span> starting nodemanager,logging to /usr/hadoop/logs/yarn-root-nodemanager-Slave2<span class="hljs-preprocessor" style="color: rgb(68,68); Box-sizing: border-Box;">.out</span>
</span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li><li style="Box-sizing: border-Box; padding: 0px 5px;">24</li><li style="Box-sizing: border-Box; padding: 0px 5px;">25</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li><li style="Box-sizing: border-Box; padding: 0px 5px;">24</li><li style="Box-sizing: border-Box; padding: 0px 5px;">25</li></ul>

验证hadoop

Box-sizing: border-Box; position: relative; overflow-y: hidden; overflow-x: auto; margin-top: 0px; margin-bottom: 1.1em; font-family: "Source Code Pro",0); Box-sizing: border-Box;">// 1. 直接在Master或Slave输入指令：</span>
jps

<span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;">// 应该输出以下信息(端口号仅供参考)</span>
Master:
<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">3930</span> ResourceManager
<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">4506</span> Jps
<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">3693</span> NameNode

Slave:
<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">2792</span> NodeManager
<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">2920</span> Jps
<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">2701</span> Datanode

<span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;">// 2. 输入以下指令</span>
hadoop dfsadmin <span class="hljs-attribute" style="Box-sizing: border-Box;">-report</span>

<span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;">// 应该输出以下信息：</span>
Configured Capacity: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">14382268416</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">13.39</span> GB)
Present Capacity: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">10538565632</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">9.81</span> GB)
DFS Remaining: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">10538557440</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">9.81</span> GB)
DFS Used: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">8192</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">8</span> KB)
DFS Used<span class="hljs-subst" style="color: rgb(0,0); Box-sizing: border-Box;">%</span>: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">0.00</span><span class="hljs-subst" style="color: rgb(0,0); Box-sizing: border-Box;">%</span>
Under replicated blocks: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">0</span>
Blocks <span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">with</span> corrupt replicas: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">0</span>
Missing blocks: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">0</span>
Missing blocks (<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">with</span> replication factor <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">1</span>): <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">0</span>

<span class="hljs-subst" style="color: rgb(0,0); Box-sizing: border-Box;">-------------------------------------------------</span>
Live datanodes (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">2</span>):

Name: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.124</span>:<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">50010</span> (Slave2<span class="hljs-built_in" style="color: rgb(102,102); Box-sizing: border-Box;">.</span>Hadoop)
Hostname: Slave2<span class="hljs-built_in" style="color: rgb(102,102); Box-sizing: border-Box;">.</span>Hadoop
Decommission Status : Normal
Configured Capacity: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">7191134208</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">6.70</span> GB)
DFS Used: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">4096</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">4</span> KB)
Non DFS Used: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">1921933312</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">1.79</span> GB)
DFS Remaining: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">5269196800</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">4.91</span> GB)
DFS Used<span class="hljs-subst" style="color: rgb(0,0); Box-sizing: border-Box;">%</span>
DFS Remaining<span class="hljs-subst" style="color: rgb(0,102); Box-sizing: border-Box;">73.27</span><span class="hljs-subst" style="color: rgb(0,0); Box-sizing: border-Box;">%</span>
Configured <span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">Cache</span> Capacity: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">0</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">0</span> B)
<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">Cache</span> Used: <span class="hljs-number" style="color: rgb(0,136); Box-sizing: border-Box;">Cache</span> Remaining: <span class="hljs-number" style="color: rgb(0,136); Box-sizing: border-Box;">Cache</span> Used<span class="hljs-subst" style="color: rgb(0,102); Box-sizing: border-Box;">100.00</span><span class="hljs-subst" style="color: rgb(0,0); Box-sizing: border-Box;">%</span>
<span class="hljs-keyword" style="color: rgb(0,136); Box-sizing: border-Box;">Cache</span> Remaining<span class="hljs-subst" style="color: rgb(0,0); Box-sizing: border-Box;">%</span>
Xceivers: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">1</span>
Last contact: Thu Jul <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">02</span> <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">10</span>:<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">45</span>:<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">04</span> CST <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">2015</span>


Name: <span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">.125</span>:<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">50010</span> (Slave1<span class="hljs-built_in" style="color: rgb(102,102); Box-sizing: border-Box;">.</span>Hadoop)
Hostname: Slave1<span class="hljs-built_in" style="color: rgb(102,102); Box-sizing: border-Box;">1921769472</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">5269360640</span> (<span class="hljs-number" style="color: rgb(0,102); Box-sizing: border-Box;">73.28</span><span class="hljs-subst" style="color: rgb(0,102); Box-sizing: border-Box;">1</span></code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li><li style="Box-sizing: border-Box; padding: 0px 5px;">24</li><li style="Box-sizing: border-Box; padding: 0px 5px;">25</li><li style="Box-sizing: border-Box; padding: 0px 5px;">26</li><li style="Box-sizing: border-Box; padding: 0px 5px;">27</li><li style="Box-sizing: border-Box; padding: 0px 5px;">28</li><li style="Box-sizing: border-Box; padding: 0px 5px;">29</li><li style="Box-sizing: border-Box; padding: 0px 5px;">30</li><li style="Box-sizing: border-Box; padding: 0px 5px;">31</li><li style="Box-sizing: border-Box; padding: 0px 5px;">32</li><li style="Box-sizing: border-Box; padding: 0px 5px;">33</li><li style="Box-sizing: border-Box; padding: 0px 5px;">34</li><li style="Box-sizing: border-Box; padding: 0px 5px;">35</li><li style="Box-sizing: border-Box; padding: 0px 5px;">36</li><li style="Box-sizing: border-Box; padding: 0px 5px;">37</li><li style="Box-sizing: border-Box; padding: 0px 5px;">38</li><li style="Box-sizing: border-Box; padding: 0px 5px;">39</li><li style="Box-sizing: border-Box; padding: 0px 5px;">40</li><li style="Box-sizing: border-Box; padding: 0px 5px;">41</li><li style="Box-sizing: border-Box; padding: 0px 5px;">42</li><li style="Box-sizing: border-Box; padding: 0px 5px;">43</li><li style="Box-sizing: border-Box; padding: 0px 5px;">44</li><li style="Box-sizing: border-Box; padding: 0px 5px;">45</li><li style="Box-sizing: border-Box; padding: 0px 5px;">46</li><li style="Box-sizing: border-Box; padding: 0px 5px;">47</li><li style="Box-sizing: border-Box; padding: 0px 5px;">48</li><li style="Box-sizing: border-Box; padding: 0px 5px;">49</li><li style="Box-sizing: border-Box; padding: 0px 5px;">50</li><li style="Box-sizing: border-Box; padding: 0px 5px;">51</li><li style="Box-sizing: border-Box; padding: 0px 5px;">52</li><li style="Box-sizing: border-Box; padding: 0px 5px;">53</li><li style="Box-sizing: border-Box; padding: 0px 5px;">54</li><li style="Box-sizing: border-Box; padding: 0px 5px;">55</li><li style="Box-sizing: border-Box; padding: 0px 5px;">56</li><li style="Box-sizing: border-Box; padding: 0px 5px;">57</li><li style="Box-sizing: border-Box; padding: 0px 5px;">58</li><li style="Box-sizing: border-Box; padding: 0px 5px;">59</li><li style="Box-sizing: border-Box; padding: 0px 5px;">60</li><li style="Box-sizing: border-Box; padding: 0px 5px;">61</li><li style="Box-sizing: border-Box; padding: 0px 5px;">62</li><li style="Box-sizing: border-Box; padding: 0px 5px;">63</li><li style="Box-sizing: border-Box; padding: 0px 5px;">64</li></ul><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li><li style="Box-sizing: border-Box; padding: 0px 5px;">8</li><li style="Box-sizing: border-Box; padding: 0px 5px;">9</li><li style="Box-sizing: border-Box; padding: 0px 5px;">10</li><li style="Box-sizing: border-Box; padding: 0px 5px;">11</li><li style="Box-sizing: border-Box; padding: 0px 5px;">12</li><li style="Box-sizing: border-Box; padding: 0px 5px;">13</li><li style="Box-sizing: border-Box; padding: 0px 5px;">14</li><li style="Box-sizing: border-Box; padding: 0px 5px;">15</li><li style="Box-sizing: border-Box; padding: 0px 5px;">16</li><li style="Box-sizing: border-Box; padding: 0px 5px;">17</li><li style="Box-sizing: border-Box; padding: 0px 5px;">18</li><li style="Box-sizing: border-Box; padding: 0px 5px;">19</li><li style="Box-sizing: border-Box; padding: 0px 5px;">20</li><li style="Box-sizing: border-Box; padding: 0px 5px;">21</li><li style="Box-sizing: border-Box; padding: 0px 5px;">22</li><li style="Box-sizing: border-Box; padding: 0px 5px;">23</li><li style="Box-sizing: border-Box; padding: 0px 5px;">24</li><li style="Box-sizing: border-Box; padding: 0px 5px;">25</li><li style="Box-sizing: border-Box; padding: 0px 5px;">26</li><li style="Box-sizing: border-Box; padding: 0px 5px;">27</li><li style="Box-sizing: border-Box; padding: 0px 5px;">28</li><li style="Box-sizing: border-Box; padding: 0px 5px;">29</li><li style="Box-sizing: border-Box; padding: 0px 5px;">30</li><li style="Box-sizing: border-Box; padding: 0px 5px;">31</li><li style="Box-sizing: border-Box; padding: 0px 5px;">32</li><li style="Box-sizing: border-Box; padding: 0px 5px;">33</li><li style="Box-sizing: border-Box; padding: 0px 5px;">34</li><li style="Box-sizing: border-Box; padding: 0px 5px;">35</li><li style="Box-sizing: border-Box; padding: 0px 5px;">36</li><li style="Box-sizing: border-Box; padding: 0px 5px;">37</li><li style="Box-sizing: border-Box; padding: 0px 5px;">38</li><li style="Box-sizing: border-Box; padding: 0px 5px;">39</li><li style="Box-sizing: border-Box; padding: 0px 5px;">40</li><li style="Box-sizing: border-Box; padding: 0px 5px;">41</li><li style="Box-sizing: border-Box; padding: 0px 5px;">42</li><li style="Box-sizing: border-Box; padding: 0px 5px;">43</li><li style="Box-sizing: border-Box; padding: 0px 5px;">44</li><li style="Box-sizing: border-Box; padding: 0px 5px;">45</li><li style="Box-sizing: border-Box; padding: 0px 5px;">46</li><li style="Box-sizing: border-Box; padding: 0px 5px;">47</li><li style="Box-sizing: border-Box; padding: 0px 5px;">48</li><li style="Box-sizing: border-Box; padding: 0px 5px;">49</li><li style="Box-sizing: border-Box; padding: 0px 5px;">50</li><li style="Box-sizing: border-Box; padding: 0px 5px;">51</li><li style="Box-sizing: border-Box; padding: 0px 5px;">52</li><li style="Box-sizing: border-Box; padding: 0px 5px;">53</li><li style="Box-sizing: border-Box; padding: 0px 5px;">54</li><li style="Box-sizing: border-Box; padding: 0px 5px;">55</li><li style="Box-sizing: border-Box; padding: 0px 5px;">56</li><li style="Box-sizing: border-Box; padding: 0px 5px;">57</li><li style="Box-sizing: border-Box; padding: 0px 5px;">58</li><li style="Box-sizing: border-Box; padding: 0px 5px;">59</li><li style="Box-sizing: border-Box; padding: 0px 5px;">60</li><li style="Box-sizing: border-Box; padding: 0px 5px;">61</li><li style="Box-sizing: border-Box; padding: 0px 5px;">62</li><li style="Box-sizing: border-Box; padding: 0px 5px;">63</li><li style="Box-sizing: border-Box; padding: 0px 5px;">64</li></ul><div class="save_code" style="Box-sizing: border-Box; position: absolute; width: 105px; height: 60px; right: 30px; top: 25px; color: rgb(255,255,255); cursor: pointer;"><img src="http://static.blog.csdn.net/images/save_snippets.png" style="border: none; Box-sizing: border-Box; max-width: 100%;" alt="" /></div>

访问网页

<code class="hljs cs has-numbering" style="display: block; padding: 0px; color: inherit; Box-sizing: border-Box; font-family: "Source Code Pro",0); Box-sizing: border-Box;">// CentOS7中iptables这个服务的配置文件没有了，采用了新的firewalld</span>
<span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;">// 输入以下指令后，可以在真机浏览器上访问hadoop网页</span>
systemctl stop firewalld

<span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;">// 输入以下网页，进入hadoop管理首页</span>
http:<span class="hljs-comment" style="color: rgb(136,0); Box-sizing: border-Box;">//192.168.1.122:50070/dfshealth.html#tab-overview</span>
</code><ul class="pre-numbering" style="Box-sizing: border-Box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221,238);"><li style="Box-sizing: border-Box; padding: 0px 5px;">1</li><li style="Box-sizing: border-Box; padding: 0px 5px;">2</li><li style="Box-sizing: border-Box; padding: 0px 5px;">3</li><li style="Box-sizing: border-Box; padding: 0px 5px;">4</li><li style="Box-sizing: border-Box; padding: 0px 5px;">5</li><li style="Box-sizing: border-Box; padding: 0px 5px;">6</li><li style="Box-sizing: border-Box; padding: 0px 5px;">7</li></ul>

参考资料

原文链接：https://www.f2er.com/centos/381877.html

CentOS7.0安装配置hadoop2.7.0

http://blog.csdn.net/circyo/article/details/46724335

CentOS7.0安装配置hadoop2.7.0

资源准备

linux 虚拟机配置

配置Master无密码登录所有Salve

进行jdk,hadoop软件安装

配置hadoop（先只在Master主机配置，配置完后传入两个Slave主机）

配置Hadoop的集群

参考资料

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