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CentOS7安装配置hadoop2.7.2

来源：互联网 发布：微商神器软件 编辑：程序博客网 时间：2024/05/17 07:11

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
  • 内存：每个虚拟机配置4G内存
  • 分区：手动配置
  • 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

安装完后各个虚拟机的ip配置(参考用)

主机ip地址master.hadoop192.168.200.30slave1.hadoop192.168.200.31slave2.hadoop192.168.200.32

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, 102); box-sizing: border-box;">.200.30</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, 102); box-sizing: border-box;">192.168</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.200.31</span>   Slave1<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, 102); box-sizing: border-box;">192.168</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.200.32</span>   Slave2<span class="hljs-preprocessor" style="color: rgb(68, 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, 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><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
<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;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">ping</span> Slave1<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.Hadoop</span><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">ping</span> Slave2<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.Hadoop</span></code>

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, 136, 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, 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><li style="box-sizing: border-box; padding: 0px 5px;">3</li></ul><div class="save_code tracking-ad" data-mod="popu_249" style="box-sizing: border-box; position: absolute; height: 60px; right: 30px; top: 5px; color: rgb(255, 255, 255); cursor: pointer; z-index: 2;"><a target=_blank style="color: rgb(202, 0, 0); box-sizing: border-box;"><img src="http://static.blog.csdn.net/images/save_snippets_01.png" style="border: none; box-sizing: border-box; max-width: 100%;" alt="" /></a></div>
  • 把id_rsa.pub追加到授权的key里面去
<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;">cat ~/<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.ssh</span>/id_rsa<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.pub</span> >> ~/<span class="hljs-preprocessor" style="color: rgb(68, 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, 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></ul>
  • 修改文件”authorized_keys”权限
<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;">chmod <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">600</span> ~<span class="hljs-regexp" style="color: rgb(0, 136, 0); box-sizing: border-box;">/.ssh/authorized</span>_keys</code>
  • 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, 136, 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, 102); box-sizing: border-box;">yes</span> <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;"># 启用 RSA 认证</span>PubkeyAuthentication <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">yes</span> <span class="hljs-comment" style="color: rgb(136, 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, 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, 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><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><div class="save_code tracking-ad" data-mod="popu_249" style="box-sizing: border-box; position: absolute; height: 60px; right: 30px; top: 5px; color: rgb(255, 255, 255); cursor: pointer; z-index: 2;"><a target=_blank style="color: rgb(202, 0, 0); box-sizing: border-box;"><img src="http://static.blog.csdn.net/images/save_snippets.png" style="border: none; box-sizing: border-box; max-width: 100%;" alt="" /></a></div>
  • 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>
  • 把公钥复制所有的Slave机器上
<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;">/<span class="hljs-regexp" style="color: rgb(0, 136, 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, 102); box-sizing: border-box;">:~/</span>scp ~<span class="hljs-regexp" style="color: rgb(0, 136, 0); box-sizing: border-box;">/.ssh/id</span>_rsa.pub root<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">@192</span>.<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">168.200.31</span><span class="hljs-symbol" style="color: rgb(0, 102, 102); box-sizing: border-box;">:~/</span>scp ~<span class="hljs-regexp" style="color: rgb(0, 136, 0); box-sizing: border-box;">/.ssh/id</span>_rsa.pub root<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">@192</span>.<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">168.200.32</span><span class="hljs-symbol" style="color: rgb(0, 102, 102); box-sizing: border-box;">:~/</span></code>

以下在Slave主机上配置

  • 在slave主机上创建.ssh文件夹
<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;">mkdir ~/<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.ssh</span>// 修改权限chmod <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">700</span> ~/<span class="hljs-preprocessor" style="color: rgb(68, 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, 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><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, 136, 0); box-sizing: border-box;">/id_rsa.pub >> ~/</span>.ssh/authorized_keys<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 修改权限</span>chmod <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">600</span> ~<span class="hljs-regexp" style="color: rgb(0, 136, 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, 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><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, 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, 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></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, 0, 136);">ssh</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">192.168.200.31</span>ssh <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">192.168.200.32</span>// 如果能够分别无密码登陆slave1, slave2主机，则成功配置</code>

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-8u101-linux-x64.tar.gz文件到虚拟主机中
<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;">// 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-8u101-linux-x64.tar.gz<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;"></span>  root<span class="hljs-localvars" style="box-sizing: border-box;">@192</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.168.200.30</span>:/usr/javascp jdk-8u101-linux-x64.tar.gz<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;"></span>  root<span class="hljs-localvars" style="box-sizing: border-box;">@192</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.168</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.200.31</span>:/usr/javascp jdk-8u101-linux-x64.tar.gz<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;"></span>  root<span class="hljs-localvars" style="box-sizing: border-box;">@192</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.168</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.200.32</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, 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><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-8u101-linux-x64.tar.gz<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 解压后可以删除掉gz文件</span>rm jdk-8u101-linux-x64.tar.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, 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><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
<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;">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, 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>
  • 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, 0, 136); box-sizing: border-box;">export</span> JAVA_HOME=/usr/java/jdk1.<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">8.0</span>_101<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> JRE_HOME=/usr/java/jdk1.<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">8.0</span>_101/jre<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> CLASSPATH=.:<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$CLASSPATH</span>:<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$JAVA_HOME</span>/lib:<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$JRE_HOME</span>/lib<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> PATH=<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$PATH</span>:<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$JAVA_HOME</span>/bin:<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$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, 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><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><div class="save_code tracking-ad" data-mod="popu_249" style="box-sizing: border-box; position: absolute; height: 60px; right: 30px; top: 5px; color: rgb(255, 255, 255); cursor: pointer; z-index: 2;"><a target=_blank style="color: rgb(202, 0, 0); box-sizing: border-box;"><img src="http://static.blog.csdn.net/images/save_snippets.png" style="border: none; box-sizing: border-box; max-width: 100%;" alt="" /></a></div>
  • 使配置生效
<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;"><span class="hljs-built_in" style="color: rgb(102, 0, 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, 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></ul>
  • 验证安装成功
<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;">java <span class="hljs-attribute" style="box-sizing: border-box;">-version</span><span class="hljs-comment" style="color: rgb(136, 0, 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, 136, 0); box-sizing: border-box;">"1.8.0_101"</span></code>

hadoop安装

  • 使用以下指令将hadoop-2.7.2.tar.gz文件复制到/usr目录下
<code class="hljs ruby has-numbering" style="display: block; padding: 0px; box-sizing: border-box; font-family: "Source Code Pro", monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background-image: initial; background-attachment: initial; background-color: transparent; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"><span style="color: inherit;">scp hadoop-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.7</span>.</span><span style="color:#006666;">2</span><span style="color:rgba(0, 0, 0, 0);">.tar.gz  root</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">@192</span><span style="color:rgba(0, 0, 0, 0);">.</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">168.200.30</span><span class="hljs-symbol" style="color: rgb(0, 102, 102); box-sizing: border-box;">:/usr/</span></code><ul class="pre-numbering" style="color: rgb(51, 51, 51); 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></ul>
  • 解压hadoop-2.7.2.tar.gz文件，并重命名
<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;">cd /usrtar zxvf  hadoop-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.7</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.2</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.tar</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.gz</span>mv hadoop-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.7</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.2</span> hadoop// 删除hadoop-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.7</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.2</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.tar</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.gz</span>文件rm –rf hadoop-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.7</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.2</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.tar</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 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, 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><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
<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;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">cd</span> /usr/hadoopmkdir 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, 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>
  • 把Hadoop的安装路径添加到”/etc/profile”中
<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;">vi /etc/profile// 将以下数据加入到文件末尾<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> HADOOP_INSTALL=/usr/hadoop  <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> PATH=<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">${HADOOP_INSTALL}</span>/bin:<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">${HADOOP_INSTALL}</span>/sbin<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">${PATH}</span>  <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> HADOOP_MAPRED_HOME=<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">${HADOOP_INSTALL}</span>  <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> HADOOP_COMMON_HOME=<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">${HADOOP_INSTALL}</span>  <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> HADOOP_HDFS_HOME=<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">${HADOOP_INSTALL}</span>  <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> YARN_HOME=<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">${HADOOP_INSTALLL}</span>  <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> HADOOP_COMMON_LIB_NATIVE_DIR=<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">${HADOOP_INSTALL}</span>/lib/natvie    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> HADOOP_OPTS=<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"-Djava.library.path=<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">${HADOOP_INSTALL}</span>/lib:<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">${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, 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><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”
<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;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">source</span> /etc/profile</code>

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
<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;"><span class="hljs-built_in" style="color: rgb(102, 0, 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, 0, 136); box-sizing: border-box;">export</span> JAVA_HOME=/usr/java/jdk1.<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">8.0</span>_101</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><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, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">configuration</span>></span><span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>  <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>hadoop.tmp.dir<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>  <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>/usr/hadoop/tmp<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>  <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">description</span>></span>A base for other temporary directories.<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">description</span>></span>  <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>  <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>  <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>fs.default.name<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>  <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>hdfs://Master.Hadoop:9000<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span> <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span><span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 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, 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><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
<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 hdfs-site.xml// 修改文件内容为以下<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">configuration</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>dfs.namenode.name.dir<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>file:///usr/hadoop/dfs/name<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>dfs.datanode.data.dir<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>file:///usr/hadoop/dfs/data<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>dfs.replication<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>1<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>dfs.nameservices<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>hadoop-cluster1<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>dfs.namenode.secondary.http-address<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>Master.Hadoop:50090<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>dfs.webhdfs.enabled<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>true<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span><span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 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, 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><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
<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 mapred-site.xml  // 修改文件为以下 <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>mapreduce.framework.name<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>yarn<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">final</span>></span>true<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">final</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>mapreduce.jobtracker.http.address<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>Master.Hadoop:50030<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>mapreduce.jobhistory.address<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>Master.Hadoop:10020<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>mapreduce.jobhistory.webapp.address<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>Master.Hadoop:19888<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>mapred.job.tracker<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>http://Master.Hadoop:9001<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 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, 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><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
<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 yarn-site.xml// 修改文件内容为以下        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>yarn.resourcemanager.hostname<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>Master.Hadoop<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>yarn.nodemanager.aux-services<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>mapreduce_shuffle<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>yarn.resourcemanager.address<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>Master.Hadoop:8032<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>yarn.resourcemanager.scheduler.address<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>Master.Hadoop:8030<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>yarn.resourcemanager.resource-tracker.address<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>Master.Hadoop:8031<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>yarn.resourcemanager.admin.address<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>Master.Hadoop:8033<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">property</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>yarn.resourcemanager.webapp.address<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">name</span>></span>        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>Master.Hadoop:8088<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">value</span>></span>    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 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, 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><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
<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;">scp -r /usr/hadoop  root<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">@192</span>.<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">168.200.31</span><span class="hljs-symbol" style="color: rgb(0, 102, 102); box-sizing: border-box;">:/usr/</span>scp -r /usr/hadoop  root<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">@192</span>.<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">168.1</span>.<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span><span class="hljs-symbol" style="color: rgb(0, 102, 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, 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>
  • 修改Master主机上的slaves文件
<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;">cd /usr/hadoop/etc/hadoopvi slaves// 将文件内容修改为Slave1<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.Hadoop</span>Slave2<span class="hljs-preprocessor" style="color: rgb(68, 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, 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><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, 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, 0, 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, 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>
  • 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<span style="color: rgb(51, 51, 51); font-family: "Source Code Pro", monospace; font-size: 14px; line-height: 20.3px; white-space: pre; background-color: rgba(128, 128, 128, 0.0470588);">systemctl stop firewalld</span>cd /usr/hadoop/sbin./start-all<span class="hljs-preprocessor" style="color: rgb(68, 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, 68); box-sizing: border-box;">.sh</span>./start-yarn<span class="hljs-preprocessor" style="color: rgb(68, 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, 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, 68); box-sizing: border-box;">.localdomain</span><span class="hljs-preprocessor" style="color: rgb(68, 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, 68); box-sizing: border-box;">.Hadoop</span><span class="hljs-preprocessor" style="color: rgb(68, 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, 68); box-sizing: border-box;">.Hadoop</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.out</span>starting yarn daemonsstarting resourcemanager, logging to /usr/hadoop/logs/yarn-root-resourcemanager-localhost<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.localdomain</span><span class="hljs-preprocessor" style="color: rgb(68, 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, 68); box-sizing: border-box;">.Hadoop</span><span class="hljs-preprocessor" style="color: rgb(68, 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, 68); box-sizing: border-box;">.Hadoop</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.out</span></span></code>

  • 验证hadoop
<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;"><span class="hljs-comment" style="color: rgb(136, 0, 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, 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, 102); box-sizing: border-box;">3930</span> ResourceManager<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4506</span> Jps<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">3693</span> NameNodeSlave:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2792</span> NodeManager<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2920</span> Jps<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2701</span> DataNode<span class="hljs-comment" style="color: rgb(136, 0, 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, 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, 102); box-sizing: border-box;">14382268416</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">13.39</span> GB)Present Capacity: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">10538565632</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">9.81</span> GB)DFS Remaining: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">10538557440</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">9.81</span> GB)DFS Used: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">8192</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">8</span> KB)DFS Used<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0.00</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>Under replicated blocks: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>Blocks <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">with</span> corrupt replicas: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>Missing blocks: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>Missing blocks (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">with</span> replication factor <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>): <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">-------------------------------------------------</span>Live datanodes (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2</span>):Name: <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, 102); box-sizing: border-box;">.1</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.124</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">50010</span> (Slave2<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">.</span>Hadoop)Hostname: Slave2<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">.</span>HadoopDecommission Status : NormalConfigured Capacity: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">7191134208</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">6.70</span> GB)DFS Used: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4096</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4</span> KB)Non DFS Used: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1921933312</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1.79</span> GB)DFS Remaining: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">5269196800</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4.91</span> GB)DFS Used<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0.00</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>DFS Remaining<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">73.27</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>Configured <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">Cache</span> Capacity: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> B)<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">Cache</span> Used: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> B)<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">Cache</span> Remaining: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> B)<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">Cache</span> Used<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">100.00</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">Cache</span> Remaining<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0.00</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>Xceivers: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>Last contact: Thu Jul <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">02</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">10</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">45</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">04</span> CST <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>Name: <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, 102); box-sizing: border-box;">.1</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.125</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">50010</span> (Slave1<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">.</span>Hadoop)Hostname: Slave1<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">.</span>HadoopDecommission Status : NormalConfigured Capacity: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">7191134208</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">6.70</span> GB)DFS Used: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4096</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4</span> KB)Non DFS Used: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1921769472</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1.79</span> GB)DFS Remaining: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">5269360640</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4.91</span> GB)DFS Used<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0.00</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>DFS Remaining<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">73.28</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>Configured <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">Cache</span> Capacity: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> B)<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">Cache</span> Used: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> B)<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">Cache</span> Remaining: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> B)<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">Cache</span> Used<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">100.00</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">Cache</span> Remaining<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0.00</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">%</span>Xceivers: <span class="hljs-number" style="color: rgb(0, 102, 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, 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><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>
  • 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", monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-comment" style="color: rgb(136, 0, 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, 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, 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, 0); box-sizing: border-box;">//192.168.1.122:50070/dfshealth.html#tab-overview</span></code>

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