https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/SingleCluster.html
https://blog.csdn.net/fenquegong2126/article/details/80988562
注意JAVA_HOME 找不到修改
/usr/local/hadoop/etc/hadoop/hadoop-env.sh
JAVA_HOME
https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/SingleCluster.html
https://blog.csdn.net/fenquegong2126/article/details/80988562
注意JAVA_HOME 找不到修改
/usr/local/hadoop/etc/hadoop/hadoop-env.sh
JAVA_HOME