Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.AccessControlException):

用windows连接hadoop集群执行mapreduce任务的时候出现以下错误:

org.apache.hadoop.security.AccessControlException:Permission denied: user=Administrator, access=WRITE,inode="/output":hadoop:supergroup:drwxr-xr-x

Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.AccessControlException):

Causedby:org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.AccessControlException):Permission denied: user=Administrator, access=WRITE,inode="/output":hadoop:supergroup:drwxr-xr-x

Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.AccessControlException):

出现原因:这个错误的原因是 eclipse 执行 mapreduce 任务时权限不够,需要增加权限。

解决方法:在 linux 上执行 hadoop fs -chmod -R 777 /