cenos 安装hadoop

1 创建hadoop用户

2 下载jdk和hadoop安装包

3 在root用户下解压jdk到/usr/java

4 配置JAVA_HOME

编辑/etc/profile，在文件最后添加

# set java environment

export JAVA_HOME=/usr/java/jdk1.8.0_191/
export JRE_HOME=/usr/java/jdk1.8.0_191/jre
export CLASSPATH=.:$CLASSPATH:$JAVA_HOME/lib:$JRE_HOME/lib
export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin

 

5 在hadoop用户下解压hadoop安装包到，/usr/hadoop/

6 配置hadoop

编辑 hadoop-env.sh文件，修改JAVA_HOME

export JAVA_HOME=/usr/java/jdk1.8.0_191/

编辑core-site.xml

<configuration>

    <property>

        <name>hadoop.tmp.dir</name>

        <value>/usr/hadoop/tmp</value> 

        <description>A base for other temporary directories.</description>

    </property>

<!-- file system properties -->

    <property>

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

        <value>hdfs://192.168.31.101:9000</value>

    </property>

</configuration>

 

编辑hdfs-site.xml

<configuration> 
 <property> 
 <name>dfs.replication</name> 
  <value>1</value>  
    </property> 
</configuration>

编辑mapred-site.xml

<configuration>

    <property>

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

        <value>http://192.168.31.101:9001</value>

    </property>

</configuration>

 

7 格式化存储

hadoop namenode -format

8 启动hadoop

./sbin/start-all.sh

 

9关闭防火墙

systemctl stop firewall

 

标签：JAVA,cenos,java,hadoop,site,usr,HOME,安装
来源： https://www.cnblogs.com/Leechg/p/10588102.html