Hadoop伪分布式安装_伪分布式安装

     解压：   tar -zxvf jdk-7u79-linux-x64.tar.gz -C /working/source
     添加到系统环境变量 :~/.bash_profile

export JAVA_HOME="/working/source/jdk1.7.0_79"
CLASSPATH=$CLASSPATH.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
export PATH=$PATH:$JAVA_HOME/bin:$JAVA_HOME/jre/bin

  sudo yum/apt-get install ssh
  ssh-keygen -t rsa
  cp ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys

  下载：直接去cdh网站下载 wget http://archive.cloudera.com/cdh5/cdh/5/hadoop-2.6.0-cdh5.7.0.tar.gz
   解压: tar -zxvf hadoop-2.6.0-cdh5.7.0.tar.gz -C /working/source

export JAVA_HOME=/working/source/jdk1.8.0_151  //配置java环境

在 /etc/host 加上
127.0.0.1   bigdata-msenior01.kfk.com

先执行 mkdir /data/tmp 创建存储路径
然后修改core-site
<configuration>  
   <!--配置域名和端口-->
     <property>
        <name>fs.defaultFS</name>
        <value>hdfs://bigdata-msenior01.kfk.com:8020</value>
    </property>
     <property>
   <!--配置存储路径-->
         <name>hadoop.tmp.dir</name>
         <value>/working/source/hadoop-2.6.0-cdh5.7.0/data/tmp</value>
    </property>
</configuration>

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

   格式化文件系统（仅第一次执行即可，不要重复执行）hdfs(hadoop) namenode -format
   启动:hdfs sbin/start-dfs.sh

jps 
    DataNode
    SecondaryNameNode
    NameNode

sbin/stop-dfs.sh