1、 Build Linux env
my env is VM RedHat Linux 6.5 64bit
set fixed IP
vim /etc/sysconfig/network-scripts/ifcfg-eth0
set IP to : 192.168.38.128
modify hostname： vim /etc/hosts
set hostname to : itbuilder1
2、install JDK
config JDK env variables
3、install Hadoop env
download Apache hadoop pkg
addr：http://archive.apache.org/dist/hadoop/core/stable2/hadoop-2.7.1.tar.gz
3.1 Extract the package to the specified directory
create a dir : mkdir /usr/local/hadoop
extract file to dir : /usr/local/hadoop ：tar -zxvf hadoop-2.7.1.tar.gz -C /usr/local/hadoop
3.2 Modify the configuration file
hadoop2.7.1 version need to modify 5 config files :
1、hadoop-env.sh
2、core-site.xml
3、hdfs-site.xml
4、mapred-site.xml（mapred-site.xml.template）
5、yarn-site.xml
these file all under etc of hadoop, the detail dir is : /usr/local/hadoop/hadoop-2.7.1/etc/hadoop/
3.2.1 Modfiy env variable (hadoop-env.sh)
vim hadoop-env.sh
set up JDK root directory, as shown below:
export JAVA_HOME=/usr/java/jdk1.8.0_20
3.2.2 core-site.xml ,set namenode and temp file addr of HDFS.
<configuration>
<!--set HDFS addr (NameNode) -->
<property>
<name>fs.defaultFS</name>
<value>hdfs://itbuilder1:9000</value>
</property>
<!--set dir of Hadoop runtime file storage directory-->
<property>
<name>hadoop.tmp.dir</name>
<value>/usr/local/hadoop/hadoop-2.7.1/tmp</value>
</property>
</configuration>
3.2.3 hdfs-site.xml (set duplicate quantity)
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>
3.2.4 mapred-site.xml ( tell hadoop that later MR runs on yarn )
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>
3.2.5 yarn-site.xml
<configuration>
<!-- tell nodemanager the way to get data is shuffle -->
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<!--set yarn addr (ResourceManager) -->
<property>
<name>yarn.resourcemanager.hostname</name>
<value>itbuilder1</value>
</property>
</configuration>
4、add hadoop to env variable
vim /etc/profile
export JAVA_HOME=/usr/java/jdk1.8.0_20
export HADOOP_HOME=/usr/local/hadoop/hadoop-2.7.1
export PATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin
#refresh /etc/profile
source /etc/profile
5、Initialize (format) file system (HDFS)
#hadoop namenode -format
hdfs namenode -format
6、start hadoop （hdfs yarn）
./start-all.sh (need to input linux password)
./start-hdfs.sh
./start-yarn.sh
View the current process of opening by JPs command
[root@linuxidc ~]# jps
3461 ResourceManager
3142 DataNode
3751 NodeManager
3016 NameNode
5034 Jps
3307 SecondaryNameNode
Access the management interface :
http://192.168.38.128:50070 (hdfs management interface)
http://192.168.38.128:8088 (mr management interface)