When to Redis? When to MongoDB?

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I would say, it depends on kind of the dev team you are and your application needs. For example if there is more  querying  required, it mostly means more work in Redis, where y OU can use the different data structures to suit your queries. Same is easier in MongoDB. On the other hand the often extra work in Redis would most likely to pay off with , sheer speed . MongoDB offers simplicity, much smaller learning for guys with SQL experience. Whereas Redis offers non-traditional approach hence more learning but huge flexibility. Eg. a  Cache  layer can probably is better implemented in Redis, and as for a more schema-able data M Ongodb might be better.  [Note:mongodb are schemaless] If you ask me my personal choice are Redis for MO ST requirements. Lastly, I hope by now and seen http://antirez.com/post/mongodb-and-redis.html

When is Redis? When to MongoDB?