question Re: Base hdfs file system permissions i am unable to understand.. in Archives of Support Questions (Read Only)

Base hdfs file system permissions i am unable to understand..

g_rao9704 — Sun, 24 Jul 2016 15:19:44 GMT

i have hdp sandbox 2.3..i login with user "sankar" and my hive warehouse directory having below file permission

hadoop fs -ls /apps/hive

drwxr-xr-x hive hdfs /apps/hive/warehouse

Here i see that owner having: rwx; group:r-x other: r-x permission

But while i login to sankar user i can easily put some data into that directory

i have attached below screen short

filesystem.png

Can any one explain this in my understanding way...please

Re: Base hdfs file system permissions i am unable to understand..

rpathak — Sun, 24 Jul 2016 16:08:56 GMT

@sankar rao

If you have enabled ranger plugin for hdfs then posix permission has no meaning.

Sandbox by default is configured to use ranger hdfs plugin having policy 'HDFS Global Allow' enabled which allow any user to have rwx permission. You can disable this from ranger.

Re: Base hdfs file system permissions i am unable to understand..

mqureshi — Mon, 25 Jul 2016 05:06:25 GMT

@sankar rao

Can you please check the value of dfs.permissions.enabled in your hdfs-site.xml? If this is false, permissions are not enforced.

Re: Base hdfs file system permissions i am unable to understand..

g_rao9704 — Mon, 25 Jul 2016 16:48:29 GMT

thanks you guys ..i will check it let you know..

Re: Base hdfs file system permissions i am unable to understand..

g_rao9704 — Mon, 25 Jul 2016 18:29:57 GMT

Thank you rahul..how can i disable this from ranger? can you explain in wide?