If you are running into permissions issue in hdfs installation (Eg: When you try to write to hdfs and that does not seem to work ) - then you may want to *relax* the permissions by the following setting in all hdfs cluster nodes , in hdfs-site.xml ( starting from 0.20 ). Of course - the namednode needs to be restarted for the changes to be effective.
Important - this has a gaping security hole in itself by relaxing the permissions and currently the hdfs team is actively working on enabling better permission based access rules. So - this change is best in the early stages of development to get started and should be revisited once again soon after.
<property> <name>dfs.permissions</name> <value>false</value> </property>
Important - this has a gaping security hole in itself by relaxing the permissions and currently the hdfs team is actively working on enabling better permission based access rules. So - this change is best in the early stages of development to get started and should be revisited once again soon after.
