Sqoop2: Create debugging web interface for Sqoop 2

Most of the Hadoop components have a special web interface (read "running on different port") where admins can show various useful debugging information such as:

• Thread dump (pretty much output of jstack command) (mentioned even in Hadoop book)
• Metrics
• And many many more

We currently don't have any metrics or much to explore, but I've already been in situation where getting jstack easily would be super helpful and hence it would be great to create such interface.