Setting permissions for cloudera hadoop
I solved my problem: In cloudera manager, go to hdfs configuration under advanced and put the following code in HDFS Service Configuration Safety Valve:
<property> <name>dfs.permissions</name> <value>false</value></property>
Changing dfs.permission is always a solution but you can also try changing the user. In my system, the writing permission is assigned only to 'hdfs' user. The user can be changed by the following command:
su hdfs
hdfs1 -> Configuration -> View and Edit -> Uncheck "Check HDFS Persmissions" this worked thanks Shehaz