Hi. My Hadoop cluster (0.20.1) has multiple users. When I use different user's account to create a file in HDFS, I find that no matter what group the user belonging to in Linux, the files in HDFS indicate that they belongs to userX, supergroup. I wonder why all users are belonging to group "supergroup"? Is there any way that the users can be assigned to different groups in HDFS? I want to have them belong to different groups, so that the user belongs to group A (say, oridinary user) cannot access to group B (e.g. administrator group)?
Hope to hear from your solutions soon! Starry /* Tomorrow is another day. So is today. */
