Hadoop TDG 2 – Development Environment
GenericOptionsParser, Tool, and ToolRunner Hadoop comes with a few helper classes formaking it easier to run jobs from the command line. GenericOptionsParser is a class that interprets common Hadoop command-line options and sets them on a Configuration object for your application to use as desired. You don’t usually use GenericOptionsParser directly, as it’s more convenient to implement theToolinterface and run your application with theToolRunner, which uses GenericOptionsParser internally. Tab...
