Lots of datastores don't keep everything in RAM though. CouchDB uses up a whole ... | Hacker News

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cdcarter on July 6, 2011 | parent | context | favorite | on: MongoDB is the New MySQL

Lots of datastores don't keep everything in RAM though. CouchDB uses up a whole ton of disk, because disk is cheap and the way the database is structured the disk reads aren't even a problem for performance.

IgorPartola on July 6, 2011 [–]

Fair enough. I'm more familiar with Mongo and Redis.

mathias_10gen on July 6, 2011 | [–]

MongoDB doesn't require everything in ram either.

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