There are companies doing stats applications using MongoDB too. It's supposedly ... | Hacker News

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		dangrossman on Jan 9, 2011 \| parent \| context \| favorite \| on: Node.JS 0.3.4 out (with experimental HTTPS) There are companies doing stats applications using MongoDB too. It's supposedly one of its strengths. I'll look into Redis too, though.

mcs on Jan 9, 2011 [–]

I've seen people using MongoDB in memory only as a cache, so that they can mapreduce it. Even without that, it's writes to disk are async so it's fast.

cdavid on Jan 9, 2011 | [–]

What's the point of map reduce if data can be held in memory ?

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