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Date: Wed, 14 Sep 2016 11:28:20 +0000 (UTC)
From: "www.jbigdata.fr (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
Message-ID: <JIRA.13004843.1473852470000.570394.1473852500455@Atlassian.JIRA>
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Subject: [jira] [Created] (HDFS-10863) hadoop superusergroup supergroup
 issue
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archived-at: Wed, 14 Sep 2016 11:28:22 -0000

www.jbigdata.fr created HDFS-10863:
--------------------------------------

             Summary: hadoop superusergroup supergroup issue
                 Key: HDFS-10863
                 URL: https://issues.apache.org/jira/browse/HDFS-10863
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
    Affects Versions: 2.7.2
         Environment: $ hadoop version
Hadoop 2.7.2
            Reporter: www.jbigdata.fr
            Priority: Minor


I want to match my unix user to HDFS: hduser:hadoop.

For the user I use the VE.

$ echo $HADOOP_HDFS_USER
hduser

For the group I use the hdfs-site.xml :

<property>
    <name>dfs.permissions.superusergroup</name>
    <value>hadoop</value>
</property>

The namenode log file show the parameter user/group values.

INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: fsOwner             = hduser (auth:SIMPLE)
INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: supergroup          = hadoop
INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: isPermissionEnabled = true

Everything seems to be OK, but when I copy file form FS to HDFS the group is not correct. It keeps the supergroup default value.

Thoses shell commands show the issue:

$ ll /srv/downloads/zk.tar
-rw-r--r-- 1 hduser hadoop 41984000 Aug 18 13:25 /srv/downloads/zk.tar
$ hdfs dfs -put /srv/downloads/zk.tar /tmp
$ hdfs dfs -ls /tmp/zk.tar
-rw-r--r--   2 hduser supergroup   41984000 2016-09-14 12:47 /tmp/zk.tar

I have:

-rw-r--r-- 2 hduser supergroup 41984000 2016-09-14 12:47 /tmp/zk.tar

I expect :

-rw-r--r-- 2 hduser hadoop 41984000 2016-09-14 12:47 /tmp/zk.tar

Why the HDFS group is not the value of the dfs.permissions.superusergroup property ?

@jbigdata.fr



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