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July 30, 2012 10:43
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Hadoop 伪分布式开发环境
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| ### Hadoop 伪分布式开发环境 | |
| ##### 创建账号 Hadoop账号 | |
| <pre> | |
| groupadd hadoop | |
| mkdir /home/hadoop | |
| useradd -g hadoop -d /home/hadoop -s /bin/bash hadoop | |
| passwd hadoop | |
| cp /home/xxx/.bashrc /home/hadoop | |
| chown -R hadoop:hadoop /home/hadoop | |
| su - hadoop | |
| ssh-keygen -t rsa | |
| cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys | |
| chmod 600 ~/.ssh/authorized_keys | |
| </pre> | |
| #### 设置个人Java运行环境变量,该安装包自带了JDK-1.6.u26版本 | |
| ##### 在.bashrc尾部添加jdk环境变量 | |
| <pre> | |
| export JAVA_HOME=/home/hadoop/jdk1.6.0_26 | |
| export CLASSPATH=.:$CLASSPATH:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar | |
| export PATH=$JAVA_HOME/bin:$PATH | |
| source .bashrc | |
| </pre> | |
| ##### 软件包现在地址 | |
| <http://dl.dropbox.com/u/62934464/hadoop_env.tar.gz/> | |
| ##### 解压hadoop_env.tar.gz文件 | |
| <pre> | |
| cd hadoopbin/hadoop namenode -format | |
| bin/start-all | |
| </pre> |
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