1.hadoop-env.sh:
修改JAVA_HOME
2.core-site.xml
配置hdfs的namenode地址与hadoop运行时使用的文件地址
name:fs.defaultFS value="dfs://xxxxx"
name:hadoop.tmp.dir value="/xxxxx"
3.hdfs-site.xml
name:dfs.replication value:1
4.mapred-site.xml
name:mapreduce.framework.name value:yarn
5.yarn-site.xml
name:yarn.nodemanager.aux-services value:mapreduce_shuffle
name:yarn.resourcemanager.hostname value:xxxxx
