一：单机版

1.sudo gedit ~/.bashrc 加入JDK路径

#HADOOP VARIABLES START  export JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk-amd64export HADOOP_INSTALL=/home/sendi/hadoop-2.6.0 export PATH=$PATH:$HADOOP_INSTALL/bin  export PATH=$PATH:$HADOOP_INSTALL/sbin  export HADOOP_MAPRED_HOME=$HADOOP_INSTALL  export HADOOP_COMMON_HOME=$HADOOP_INSTALL  export HADOOP_HDFS_HOME=$HADOOP_INSTALL  export YARN_HOME=$HADOOP_INSTALL  export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_INSTALL/lib/native  export HADOOP_OPTS="-Djava.library.path=$HADOOP_INSTALL/lib"  #HADOOP VARIABLES END

ubantu下jdk路径可用如下命令取得：

update-alternatives --config java

2.执行下面命令使改动生效：

source ~/.bashrc

3.修改hadoop-env.sh的配置：

sudo gedit /usr/local/hadoop/etc/hadoop/hadoop-env.sh

找到JAVA_HOME改为：

/usr/lib/jvm/java-1.7.0-openjdk-amd64

 再在下面加上一行代码：

export HADOOP_OPTS="-Djava.library.path=$HADOOP_PREFIX/lib:$HADOOP_PREFIX/lib/native"

二：伪分布式：

1.sudo gedit /usr/local/hadoop/etc/hadoop/core-site.xml

      
           
       
        hadoop.tmp.dir
            
       
        /home/sendi/hadoop-2.6.0/tmp
            
       
        Abase for other temporary directories.
          
         
           
       
        fs.defaultFS
            
       
        hdfs://localhost:9000
        
      
     

2.sudo gedit /usr/local/hadoop/etc/hadoop/mapred-site.xm

           
                     
       
        mapred.job.tracker
                     
       
        localhost:9001
                
         
     

3.sudo gedit /usr/local/hadoop/etc/hadoop/yarn-site.xml

       
         
       
        mapreduce.framework.name
          
       
        yarn
         
        
       
       
        yarn.nodemanager.aux-services
          
       
        mapreduce_shuffle
         
        
     

4.sudo gedit /usr/local/hadoop/etc/hadoop/hdfs-site.xml

        
                
       
        dfs.replication
                 
       
        1
             
            
                
       
        dfs.namenode.name.dir
                 
       
        /home/sendi/hadoop-2.6.0/dfs/name
           
            
                
       
        dfs.datanode.data.dir
                 
       
        /home/sendi/hadoop-2.6.0/dfs/data
             
            
                              
       
        dfs.permissions
                 
       
        false
            
       
     

 

5.sudo gedit /usr/local/hadoop/etc/hadoop/masters 添加：localhost

6.sudo gedit /usr/local/hadoop/etc/hadoop/slaves  添加：localhost

7.初始化文件系统HDFS

bin/hdfs namenode -format

8.启动,启动之后用下面链接查看结果

sbin/start-dfs.sh  sbin/start-yarn.sh ------------------------------------------------------------------------------------------------------------------------------------------- sendi@sendijia:~/hadoop-2.6.0$ sbin/start-dfs.sh Starting namenodes on [localhost] localhost: starting namenode, logging to /home/sendi/hadoop-2.6.0/logs/hadoop-sendi-namenode-sendijia.out localhost: starting datanode, logging to /home/sendi/hadoop-2.6.0/logs/hadoop-sendi-datanode-sendijia.out Starting secondary namenodes [0.0.0.0] 0.0.0.0: starting secondarynamenode, logging to /home/sendi/hadoop-2.6.0/logs/hadoop-sendi-secondarynamenode-sendijia.out sendi@sendijia:~/hadoop-2.6.0$ sbin/start-yarn.sh starting yarn daemons starting resourcemanager, logging to /home/sendi/hadoop-2.6.0/logs/yarn-sendi-resourcemanager-sendijia.out localhost: starting nodemanager, logging to /home/sendi/hadoop-2.6.0/logs/yarn-sendi-nodemanager-sendijia.out