hadoop

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hadoop jar /opt/java/hadoop/hadoop-2.6.0/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.0.jar wordcount /files/a*  /output/workcounthadoop fs -cat hadoop fs -lshadoop fs -rmhadoop fs -puthadoop fs -mkdir      
ERROR namenode.NameNode: java.io.IOException: Cannot create directory /export/home/dfs/name/currentERROR namenode.NameNode: java.io.IOException: Cannot remove current directory: /usr/local/hadoop/hdfsconf/name/current

这个错的是因为我的权限不够,困扰了我几天
sudo chmod -R a+w hadoop 目录

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