GeoJinni is concerned with efficient analysis of big spatial data. Similar to Hadoop, GeoJinni focuses on batch processing of large data analysis tasks. Interactive queries that should answer in milliseconds or analysis of a small dataset are not supposed to run in GeoJinni. Examples of operations include spatial join, data partitioning or large scale image generation. GeoJinni should also have interface to other Hadoop tools and projects such as Hive, Pig or HBase. The indexes built in GeoJinni should be accessible to all these tools through suitable APIs to access a wide range of users.