ERROR namenode.NameNode: java.io.IOException: Cannot create directory /export/home/dfs/name/current
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ERROR namenode.NameNode: java.io.IOException: Cannot create directory /export/home/dfs/name/current
ERROR namenode.NameNode: java.io.IOException: Cannot remove current directory: /usr/local/hadoop/hdfsconf/name/current
原因是 没有设置 /usr/hadoop/tmp 的权限没有设置， 将之改为：
chown –R hadoop:hadoop /usr/hadoop/tmp
ERROR namenode.NameNode: java.io.IOException: Cannot remove current directory: /usr/local/hadoop/hdfsconf/name/current
原因是 没有设置 /usr/hadoop/tmp 的权限没有设置， 将之改为：
chown –R hadoop:hadoop /usr/hadoop/tmp
sudo chmod -R a+w /usr/local/hadoop
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