Thank you.

I think my problem was here :

When a file or directory is created, its owner is the user identity of the client process, and its group is the group of the parent directory (the BSD rule).

Le 09/02/2016 04:26, Harsh J a écrit :
Changing the supergroup configuration would not affect the existing group maintained on the file inodes (its persisted since the beginning, not pulled dynamically from config at every restart). You will need to manually fs -chgrp those.

On Mon, Feb 8, 2016 at 10:15 PM Francis Dupin <> wrote:
Dear all,

Concern Hadoop 2.6.0

When I create a file as superuser, the group owner is 99.

But I have created a user:group for the superuser : hadoop:hadoop (1003)
and added in hdfs-site.xml :

The name of the group of super-users

Restarted all ... No change :
Files created are owned by hadoop:99 and in the webUI I can read

Any idea ?

Thank you

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