hadoop六个配置文件，

vi ./etc/hadoop/hadoop-env.sh

vi ./etc/hadoop/core-site.xml

vi ./etc/hadoop/hdfs-site.xml

mv ./etc/hadoop/mapred-site.xml.template ./etc/hadoop/mapred-site.xml(先改名)

vi ./etc/hadoop/mapred-site.xml

vi ./etc/hadoop/yarn-site.xml

vi ./etc/hadoop/slaves