Minor Description
It would be nice to have a command-line option to the "hadoop -fs" command that would print the actual replicated size of a file or filesystem. In other words, don't just print the size of a file if it were to be copied down to a local FS, but show us exactly how much space it's taking up in HDFS (including replicated blocks). This should be added to the FsUsage class. I'll work up a patch and attach it.