GIS Tools for Hadoop is an open source toolkit intended for Big Spatial Data
Analytics. The toolkit provides different libraries:
Esri Geometry API for Java: A generic geometry library, can be used to
extend Hadoop core with vector geometry types and operations, and enables
developers to build MapReduce applications for spatial data.
Spatial Framework for Hadoop: Extends Hive and is based on the Esri Geometry
API, to enable Hive Query Language users to leverage a set of analytical
functions and geometry types. In addition to some utilities for JSON used in
ArcGIS.
Geoprocessing Tools for Hadoop: Contains a set of ready to use ArcGIS
Geoprocessing tools, based on the Esri Geometry API and Spatial Framework
for Hadoop. Developers can download the source code of the tools and
customize it; they can also create new tools and contribute it to the open
source project. Through these tools ArcGIS users can move their spatial data
and execute a pre-defined workflow inside Hadoop.