1.解压
（1）将hadoop压缩包复制到/opt/software路径下
（2）解压hadoop到/opt/module目录下
root@kb135 software\]# tar -zxvf hadoop-3.1.3.tar.gz -C /opt/module/
#### （3）修改hadoop属主和属组
\[root@kb135 module\]# chown -R root:root ./hadoop-3.1.3/
### 2.配置环境变量
\[root@kb135 module\]# vim /etc/profile
# HADOOP_HOME
export HADOOP_HOME=/opt/soft/hadoop313
export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$HADOOP_HOME/lib
export HDFS_NAMENODE_USER=root
export HDFS_DATANODE_USER=root
export HDFS_SECONDARYNAMENODE_USER=root
export HDFS_JOURNALNODE_USER=root
export HDFS_ZKFC_USER=root
export YARN_RESOURCEMANAGER_USER=root
export YARN_NODEMANAGER_USER=root
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export HADOOP_YARN_HOME=$HADOOP_HOME
export HADOOP_INSTALL=$HADOOP_HOME
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export HADOOP_LIBEXEC_DIR=$HADOOP_HOME/libexec
export JAVA_LIBRARY_PATH=$HADOOP_HOME/lib/native
export HADOOP_CONF_DIR=$HADOOP_HOME/etc/hadoop
修改完之后\[root@kb135 module\]# source /etc/profile
### 3.在hadoop目录创建data目录
\[root@kb135 module\]# cd ./hadoop-3.1.3/
创建目录data
\[root@kb135 hadoop-3.1.3\]# mkdir ./data
### 4.修改配置文件
进入/opt/module/hadoop-3.1.3/etc/hadoop目录，查看目录下的文件，配置几个必要的文件
#### （1）配置core-site.xml
\[root@kb135 hadoop\]# vim ./core-site.xml
\
\
\fs.defaultFS\
\hdfs://kb135:9000\
\
\
\hadoop.tmp.dir\
\/opt/module/hadoop-3.1.3/data\
\
\
\hadoop.http.staticuser.user\
\root\
\
\
\io.file.buffer.size\
\131073\
\
\
\hadoop.proxyuser.root.hosts\
\\*\
\
\
\hadoop.proxyuser.root.groups\
\\*\
\
\
#### （2）配置hadoop-env.sh
\[root@kb135 hadoop\]# vim ./hadoop-env.sh
修改第54行
export JAVA_HOME=/opt/module/jdk1.8.0_381
#### （3）配置hdfs-site.xml
\[root@kb135 hadoop\]# vim ./hdfs-site.xml
\
\
\dfs.replication\
\1\
\
\
\dfs.namenode.name.dir\
\/opt/module/hadoop-3.1.3/data/dfs/name\
\
\
\dfs.datanode.data.dir\
\/opt/module/hadoop-3.1.3/data/dfs/data\
\
\
\dfs.permissions.enabled\
\false\
\
\
#### （4）配置mapred-site.xml
\[root@kb135 hadoop\]# vim ./mapred-site.xml
\
\
\mapreduce.framework.name\
\yarn\
\
\
\mapreduce.jobhistory.address\
\kb135:10020\
\
\
\mapreduce.jobhistory.webapp.address\
\kb135:19888\
\
\
\mapreduce.map.memory.mb\
\2048\
\
\
\mapreduce.reduce.memory.mb\
\2048\
\
\
\mapreduce.application.classpath\
\/opt/module/hadoop-3.1.3/etc/hadoop:/opt/module/hadoop-3.1.3/share/hadoop/common/\*:/opt/module/hadoop-3.1.3/share/hadoop/common/lib/\*:/opt/module/hadoop-3.1.3/share/hadoop/hdfs/\*:/opt/module/hadoop-3.1.3/share/hadoop/hdfs/lib/\*:/opt/module/hadoop-3.1.3/share/hadoop/mapreduce/\*:/opt/module/hadoop-3.1.3/share/hadoop/mapreduce/lib/\*:/opt/module/hadoop-3.1.3/share/hadoop/yarn/\*:/opt/module/hadoop-3.1.3/share/hadoop/yarn/lib/\*\
\
\
#### （5）配置yarn-site.xml
\[root@kb135 hadoop\]# vim ./yarn-site.xml
\
\
\yarn.resourcemanager.connect.retry-interval.ms\
\20000\
\
\
\yarn.resourcemanager.scheduler.class\
\org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler\
\
\
\yarn.nodemanager.localizer.address\
\kb135:8040\
\
\
\yarn.nodemanager.address\
\kb135:8050\
\
\
\yarn.nodemanager.webapp.address\
\kb135:8042\
\
\
\yarn.nodemanager.aux-services\
\mapreduce_shuffle\
\
\
\yarn.nodemanager.local-dirs\
\/opt/module/hadoop-3.1.3/yarndata/yarn\
\
\
\yarn.nodemanager.log-dirs\
\/opt/module/hadoop-3.1.3/yarndata/log\
\
\
\yarn.nodemanager.vmem-check-enabled\
\false\
\
\
#### （6）配置workers
\[root@kb135 hadoop\]# vim ./workers
修改为kb135
### 5.初始化hadoop
进入/opt/module/hadoop-3.1.3/bin路径
\[root@kb135 bin\]# hadoop namenode -format
### 6.设置免密登录
\[root@kb135 \~\]# ssh-keygen -t rsa -P ""
\[root@kb135 \~\]# cat /root/.ssh/id_rsa.pub \>\> /root/.ssh/authorized_keys
\[root@kb135 \~\]# ssh-copy-id -i \~/.ssh/id_rsa.pub -p22 root@kb135
### 7.启动hadoop
\[root@kb135 \~\]# start-all.sh
查看进程
\[root@kb135 \~\]# jps
### 8.测试
网页中输入网址：[http://192.168.142.135:9870/](http://192.168.142.135:9870/ "http://192.168.142.135:9870/")
