Question about superuser and permissions

2011-11-03 Thread Frank Astier
Hi - I’m writing unit tests that programatically start a name node and populate HDFS directories, but I want to simulate the situation where I don’t have read access to some HDFS directory (which happens on the real grid I eventually deploy to). I’ve tried to chown and chmod, but it seems to h

Re: Question about superuser and permissions

2011-11-03 Thread Joey Echeverria
When you get the handle to the FileSystem object you can connect as a different user: http://hadoop.apache.org/common/docs/r0.20.203.0/api/org/apache/hadoop/fs/FileSystem.html#get(java.net.URI, org.apache.hadoop.conf.Configuration, java.lang.String) This should get any permissions you set enforce

Re: Question about superuser and permissions

2011-11-03 Thread Uma Maheswara Rao G 72686
Also i would suggest you to look at TestDFSPermission & TestDFSShell test cases for dfs permissions. Which will help you for writing your unit tests. Thanks Uma - Original Message - From: Joey Echeverria Date: Friday, November 4, 2011 4:02 am Subject: Re: Question about superuser