I need to find the files/directories that are occupying the maximum space in HDFS. so that i can ask the owners of those directories to clean up the spaces. what is the command that can provide the results for this purpose. Also i do notice the namenode heap size is increasing and is around 80 - 90%. IS there a way to find which files cause this . i.e which directory has too many small files or how to identify the small files which might cause this .
Or is there any other reason thaat is causing the namenode heapsize to increase.