www.jbigdata.fr created HDFS-10863:
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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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