key-distribution in voldemort-admin-tool.sh is not a recognized ?

[Beginner]

When I try to get key-distribution I get the following error.

Exception in thread "main" joptsimple.UnrecognizedOptionException: 'key-distribution' is not a recognized option

at joptsimple.OptionException.unrecognizedOption(OptionException.java:93)

at joptsimple.OptionParser.handleLongOptionToken(OptionParser.java:400)

at joptsimple.OptionParserState$2.handleArgument(OptionParserState.java:59)

at joptsimple.OptionParser.parse(OptionParser.java:388)

at voldemort.VoldemortAdminTool.main(VoldemortAdminTool.java:268)

How can this be resolved ?

[Vinoth C]

I think this was previously the entropy tool for sampling the keys from the cluster..
This has now been replaced by a new KeySampler tool

http://www.project-voldemort.com/voldemort/rebalance.html#tools