hadoop，

hadoop，

https://www.cnblogs.com/caiyisen/p/7373512.html

https://www.cnblogs.com/chenlaichao/p/7723922.html

https://blog.csdn.net/shakalaka1/article/details/78083330

https://www.cnblogs.com/youran-he/p/8037222.html

https://blog.csdn.net/pucao_cug/article/details/71698903

 

hadoop-2.8.3不要安装openjdk-11-jdk，不兼容会报错，安装openjdk-8-jdk。

sudo apt install openjdk-8-jdk

 

在主节点上创建hadoop存放路径初始化文件。
astonika@master:~$ sudo vi /etc/profile.d/hadoop-2.8.3.sh

export HADOOP_PREFIX=/home/astonika/hadoop/hadoop-2.8.3
export HADOOP_CONF_DIR=${HADOOP_PREFIX}/etc/hadoop
export HADOOP_YARN_HOME=${HADOOP_PREFIX}
export PATH=${PATH}:${HADOOP_PREFIX}/bin

在主节点上以ssh node1命令登陆到从节点之后以scp命令将主节点上的hadoop存放路径初始化文件拷贝到从节点的相应位置上。
astonika@node1:~$ sudo scp -p astonika@master:/etc/profile.d/hadoop-2.8.3.sh /etc/profile.d/hadoop-2.8.3.sh