HDFS supports POSIX style file and directory permissions (read, write, execute) for the owner, group and world. You can change the permissions with hadoop fs -chmod <permissions> <path>
-Joey On Feb 22, 2012, at 5:32, <shreya....@cognizant.com> wrote: > Hi > > > > > > I want to implement security at file level in Hadoop, essentially > restricting certain data to certain users. > > Ex - File A can be accessed only by a user X > > File B can be accessed by only user X and user Y > > > > Is this possible in Hadoop, how do we do it? At what level are these > permissions applied (before copying to HDFS or after putting in HDFS)? > > When the file gets replicated does it retain these permissions? > > > > Thanks > > Shreya > > > This e-mail and any files transmitted with it are for the sole use of the > intended recipient(s) and may contain confidential and privileged information. > If you are not the intended recipient, please contact the sender by reply > e-mail and destroy all copies of the original message. > Any unauthorized review, use, disclosure, dissemination, forwarding, printing > or copying of this email or any action taken in reliance on this e-mail is > strictly prohibited and may be unlawful.
