linux下hadoop的安装配置

hadoop 1.0.1版本

1.配置ssh面密码登陆

sudo apt-get install ssh  //安装ssh

ssh-keygen -t dsa -P'' -f~/.ssh/id_dsa          //ssh-keygen -t dsa -P '  ' -f ~/.ssh/id_dsa

cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

ssh localhost

2.安装hadoop

下载解压后：

hadoop-env.sh:

export JAVA_HOME=.....

core-site.xml:

<configuration>

<property>

<name>fs.default.name</name>

<value>hdfs://localhost:9000</value>

</property>

</configuration>

hdfs-site.xml:

<configuration>

<property>

<name>dfs.replication</name>

<value>1</value>

</property>

</configuration>

mapred-site.xml:

<configuration>

<property>

<name>mapred.job.tracker</name>

<value>localhost:9001</value>

</property>

</configuration>

3.运行：

进入解压路径

bin/hadoop namenode -format

bin/start-all.sh

4.输入网址：

localhost:50030

localhost:50070