準備: 三臺服務器，可用虛擬軟件見3個虛擬機。
內網路由 平常的tp-link就可以
--1、 創建hadoop 用戶
useradd hadoop
passwd hadoop
--2、配置hosts （3個機器都操作）只要是互通的內網及可，ip更具自己情況設定
3臺機器的防火牆關掉
service iptables stop
# hadoop config.
export HADOOP_HOME=/home/hadoop/hadoop-2.6.0-cdh5.4.7
export PATH=$PATH:$HADOOP_HOME/bin
-- 7、互信 （3個機器都操作）
su - hadoop
ssh-keygen
ssh-copy-id -i ~/.ssh/id_rsa.pub hw001
ssh-copy-id -i ~/.ssh/id_rsa.pub hw002
ssh-copy-id -i ~/.ssh/id_rsa.pub hw003
--8、創建 name data 文件夾
mkdir /home/hadoop/dfs/name
mkdir /home/hadoop/dfs/data
mkdir /home/hadoop/dfs/tmp
--9、修改配置文件 （hw001上操作）
修改 hadoop-2.6.0-cdh5.4.7/etc/hadoop/hadoop-env.sh 中的 JAVA_HOME：
vi $HADOOP_HOME/etc/hadoop/hadoop-env.sh
export JAVA_HOME=/usr/java/jdk1.7.0_79
cat vim $HADOOP_HOME/etc/hadoop/core-site.xml
<configuration> <property>
<name>fs.default.name</name>
<value>hdfs://hw001:8020</value>
<final>true</final>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>file:/home/hadoop/dfs/tmp</value>
<description>Abase for other temporary directories.</description>
</property></configuration>
cat vi $HADOOP_HOME/etc/hadoop/hdfs-site.xml
<configuration> <property>
<name>dfs.namenode.name.dir</name>
<value>file:/data0/hadoop/dfs/name</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>file:/data0/hadoop/dfs/data</value>
</property>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.permissions</name>
<value>false</value>
</property>
<property>
<name>dfs.webhdfs.enabled</name>
<value>true</value>
</property></configuration>
cat vi $HADOOP_HOME/etc/hadoop/mapred-site.xml
<?xml version="1.0"?><?xml-stylesheet type="text/xsl" href="configuration.xsl"?><configuration> <property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
<property>
<name>mapreduce.jobhistory.address</name>
<value>hw001:10020</value>
</property>
<property>
<name>mapreduce.jobhistory.webapp.address</name>
<value>hw001:19888</value>
</property></configuration>
vi $HADOOP_HOME/etc/hadoop/yarn-site.xml
<property>
<name>yarn.resourcemanager.hostname</name>
<value>hw001</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.aux-services.mapreduce_shuffle.class</name>
<value>org.apache.hadoop.mapred.ShuffleHandler</value>
</property>
<property>
<name>yarn.resourcemanager.address</name>
<value>hw001:8032</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address</name>
<value>hw001:8030</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>hw001:8031</value>
</property>
<property>
<name>yarn.resourcemanager.admin.address</name>
<value>hw001:8033</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address</name>
<value>hw001:8088</value>
</property>
vi $HADOOP_HOME/etc/hadoop/slaves
hw002
hw003
--10、cp *.xml （hw001上操作）
scp -r /home/hadoop/hadoop-2.6.0-cdh5.4.7/etc/hadoop/* hadoop@hw002:/home/hadoop/hadoop-2.6.0-cdh5.4.7/etc/hadoop/
scp -r /home/hadoop/hadoop-2.6.0-cdh5.4.7/etc/hadoop/* hadoop@hw003:/home/hadoop/hadoop-2.6.0-cdh5.4.7/etc/hadoop/