Cassandra or mongodb for mapping time-series data + OLAP?
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I read this post before putting this question : But have specific question to choose Cassandra or MongoDB for this, being open-source and easy licensing. I see many articles on storing times-series with Cassandra but no built-in aggregation tool for this. about MongoDB going through now - http://www.10gen.com/presentations/mongodc-2011/time-series-data-storage-mongodb http://www.10gen.com/presentations/mongosf-2012/mongodb-new-aggregation-framework So like to know if anyone has used/compare this.
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Answer:
- Cassandra is very good at scaling with wide rows (which comes in very handy with time series data). - Cassandra has no single point of failure. - Cassandra allows range queries against columns to easily slice and dice your time series
Robin Verlangen at Quora Visit the source
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