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From "John Zhuge (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-10863) hadoop superusergroup supergroup issue
Date Mon, 26 Sep 2016 14:17:20 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10863?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

John Zhuge resolved HDFS-10863.
-------------------------------
    Resolution: Not A Problem

> 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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