This actually requires some lengthy writing, so I will point you to some good links. Please go through these and hopefully you'll get the answer :
HTH
Question
I'm trying to decide whether to use as a NoSQL Database for J2EE project we will start it soon, this is new for me to learn, so from 2 Days read a lot about NoSQL databases avilable and finally got those 3 systems I think it will meet our requirement, I want help to know I'm right of choose those 3 and what the best of these, I have project:
So that means Read performance must be the best.
I'm started from this site: http://nosql.findthebest.com read a lot about each database, finally I'm confused between those 3 systems (HBase, Voldemort or Couchbase).
What Pros/Cons for each server, and what the best for my project that I wrong in simplest way.
Note: for starting I need it open-source and free to use in production.
Thanks.