注意：本章只针对麒麟系统

适配系统版本

适用系统：V10(SP1)

适用架构：X86

安装步骤

hadoop下载链接
解压安装

sudo tar -zxvf  hadoop-3.3.0.tar.gz -C /usr/local  
cd /usr/local  
sudo mv  hadoop-3.3.0    hadoop
sudo chmod 777 -R hadoop

配置环境变量

cat >>  ~/.bashrc <<EOF
# hadoop  
export HADOOP_HOME=/usr/local/hadoop  
export HADOOP_CONF_DIR=\$HADOOP_HOME/etc/hadoop  
export HADOOP_CLASS_PATH=\$HADOOP_CONF_DIR  
export PATH=\$HADOOP_HOME/bin:\$HADOOP_HOME/sbin:\$PATH
EOF
source ~/.bashrc

修改jkd路径并验证

cd /usr/local/hadoop/etc/hadoop  
sudo vim hadoop-env.sh  

# 修改内容如下
export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64  

# 执行验证
cd /usr/local/hadoop/bin  
./hadoop version

修改配置文件

sudo vim core-site.xml
<configuration>
    <property>
        <name>hadoop.tmp.dir</name>
        <value>file:/usr/local/hadoop/tmp</value>
        <description>Abase for other temporary directories.</description>
    </property>
    <property>
        <name>fs.defaultFS</name>
        <value>hdfs://localhost:9000</value>
    </property>
</configuration>

sudo vim hdfs-site.xml
<configuration>
    <property>
        <name>dfs.replication</name>
        <value>1</value>
    </property>
    <property>
        <name>dfs.namenode.name.dir</name>
        <value>file:/usr/local/hadoop/tmp/dfs/name</value>
    </property>
    <property>
        <name>dfs.datanode.data.dir</name>
        <value>file:/usr/local/hadoop/tmp/dfs/data</value>
    </property>
</configuration>

配置密钥

ssh-keygen -t rsa  
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys  
chmod 600 ~/.ssh/authorized_keys  
chmod 700 ~/.ssh

执行namenode格式化并启动namenode和datanode进程

./bin/hdfs namenode -format  
./sbin/start-dfs.sh
./sbin/stop-dfs.sh

查看启动结果及web页面登录

查看节点已启动

jps