Affects Version/s: None
Fix Version/s: 0.5.0
I'm trying to refactor some name node classes, which seem to be similar.
So DatanodeInfo is a public api now for purely external ( to name node) use.
The name node class that stores information about data nodes including the
set of its blocks is called DatanodeDescriptor.
The DatanodeReport is removed since it was a variation of DatanodeInfo.
Previously DatanodeInfo and DatanodeDescriptor were the same class, and
DatanodeReport was used for reporting node statistics only.
This is a preparation step for