SimpleGeo provides a platform for developers to build location-aware applications, and it has the distinction of being our Most Promising Company For 2011.
Spatial data is multidimensional, so SimpleGeo had to build its own indexing scheme for Apache Cassandra to handle its data. In this presentation, Mike Malone, an infrastructure engineer at SimpleGeo, explains how and why the company did it.
Malone also shared a slide deck explaining all of this last year:
Scaling GIS Data in Non-relational Data Stores
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If you want even more information on different types of consistency in NoSQL databases, check out this presentation from MongoDB‘s Roger Bodamer.
