Hadoop error when accessing application through HTML

1094245 pts.
Tags:
Big Data
Hadoop
HDFS
Ubuntu
We have installed Hadoop on our cluster and now we're installing HTTPFS to access the HDFS content using HTTP protocol. We're able to access the normal page but when we tried to access HDFS, we're getting an error:
    {"RemoteException":{"message":"User: ubantu is not allowed to impersonate ubantu",
"exception":"RemoteException","javaClassName":"org.apache.hadoop.ipc.RemoteException"}}
This is what we're using:
curl -i "http://myhost:14000/webhdfs/v1?user.name=ubantu&op=OPEN"
Thanks!

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