mongodb « hbase « Java Database Q&A

1. How to decide which NoSQL technology to use?

What is the pros and cons of MongoDB (document-based), HBase (column-based) and Neo4j (objects graph)? I'm particularly interested to know some of the typical use cases for each one. ...

2. How does MongoDB Map-Reduce performance compare to HBase?

I'm designing a system that will have to store a massive amount of JSON-structured data. Mongo seems ideal for this task given its mapping to the data in question verus HBase. ...

3. HBase, Cassandra, MongoDb - here we go again?

We are about to make a decision about using any one of the above three databases. I want to base my decision on:

  1. Quick writes
  2. Fail safe
  3. Quick Reporting (with other streaming frameworks like ...