Redis vs. Mongo DB – The battle of the NoSQL databases continues

[crack-the-code]

At my last company, we used redis both for celery as a queue, and a cache for values we needed to call often and retrieve quickly. We ALSO used Mongo, but moreso as a store for larger documents that were called less frequently. I think it's not fair to compare them directly together, they are each useful in their own specific cases.

[gshakir]

Mongo has a document size limit of 16MB, so 'larger documents' need to be qualified :).

[kureikain]

The way I look at Redis is a service that helps to off-load main db. Obvious example is how people use it as a cache. But it has other use, such as:

- Leaderboard: Redis shines when we need to store ranking data. - Geo Query: Instead of query geo spatial index directly from MongoDB. I use Redis and feed the id back into MongoDB - Track Occurence Of Event: Let's say we need to keep track state of an user - Set of data

In other words, I treat Redis as a network/distributed data structure, which I can implement in the main db, but will require heavy read/write.

[olingern]

Apples and tangerines.

[mcanon7]

Love the speed and of Redis and the flexibility of Mongo.

[codedokode]

I thought Redis was a cache, not a database.

[brianwawok]

What is a cache vs a database? You can use mysql as a cache. Most people would call it a database.

Really this article is dumb. I think almost never would you need to choose redis vs mongo.

Redis is a weird and hard to describe product. For example you can use it as a queue over rabbitmq with celery. Or a cache with all kinds of things. But it does more. And an empty instance runs in like 3mb of ram and handles thousands of connections.

[pvdebbe]

I thought Mongo was a cache, not a database.

[Hackthepack]

Cassandra takes'em both

[ninjazee124]

Is Redis web-scale?

[gonyea]

Redis vs. MongoDB, seriously? Up next: choosing to die via hornets or scorpions.

[lloydjatkinson]

Why do you hate redis?

[mcanon7]

Love the sport of Redis combined with the flexibility of Mongo.

[sidegrid]

Sport?