黑猴子的家：Hadoop 本地安装模式

1、进入到Hadoop安装包路径下

[[email protected] ~]$ cd /opt/software/
[[email protected] software]$ pwd
/opt/software

2、解压安装文件到/opt/module下面

[[email protected] software]$ tar -xzvf hadoop-2.8.2.tar.gz -C /opt/module/

如果出现解压后文件的用户组不是当前用户，使用下面命令

[[email protected] software]$ tar --no-same-owner -xzvf hadoop-2.8.2.tar.gz -C /opt/module/

3、查看是否解压成功

[[email protected] software]$ ls /opt/module/
hadoop-2.8.2

4、将hadoop添加到环境变量

(1) 获取hadoop安装路径

[[email protected] ~]$ cd /opt/module/hadoop-2.8.2/
[[email protected] hadoop-2.8.2]$ pwd
/opt/module/hadoop-2.8.2

(2) 编辑 /etc/profile 文件

[[email protected] ~]$ sudo vim /etc/profile

##JAVA_HOME
export JAVA_HOME=/opt/module/jdk1.8.0_144
export PATH=$PATH:$JAVA_HOME/bin

##HADOOP_HOME
export HADOOP_HOME=/opt/module/hadoop-2.8.2
export PATH=$PATH:$HADOOP_HOME/bin
export PATH=$PATH:$HADOOP_HOME/sbin

:wq

image.png

(3) 让修改后的文件生效

[[email protected] ~]$ source /etc/profile
[[email protected] ~]$ hadoop version
Hadoop 2.8.2
Subversion 
https://git-wip-us.apache.org/repos/asf/hadoop.git -r 
66c47f2a01ad9637879e95f80c41f798373828fb
Compiled by jdu on 2017-10-19T20:39Z
Compiled with protoc 2.5.0
From source with checksum dce55e5afe30c210816b39b631a53b1d
This command was run using 
/opt/module/hadoop-2.8.2/share/hadoop/common/hadoop-common-2.8.2.jar