Make sure you didn't miss anything with this list of the Best of the Week in the NoSQL Zone (May 16 to May 22). Here they are, in order of popularity:

1. Cloudera & MongoDB: The Limitations of Choice in NoSQL

Cloudera and MongoDB released an interesting press release this week where they aim to continue to work closely together. Is this AGoodThing[™]? The author discusses here.

2. MongoMem: Optimize Memory Use in MongoDB

MongoDB users: do you have a way to tell how much memory each collection is using? For the Wish Engineering team, the answer was "no," and that's why they developed MongoMem, which allows MongoDB developers to precisely locate collections in need of memory-use optimization.

3. What’s New in Mongoose 3.8.9

Recently, Mongoose 3.8.9 was (finally) released. This was primarily a maintenance release, the major priority was to clean up several test failures against the new stable version of the MongoDB server, 2.6.x, without any backward-breaking API changes.

4. Poll Results: What Databases do Hacker News Readers Use?

Recently, Hacker News user roryhughes ran a poll asking what database Hacker News readers (or their companies) use. While the sample size may not be the largest, and "Hacker News readers" is probably not a perfect cross-section of the development world, it's an interesting look at what people are actually using.

5. Seven Databases in Seven Weeks: Hbase, Day 2

This post is a recap of the second day of Hbase from the Seven Databases in Seven Weeks book. The first thing the author had to do in day two was download lots of data (big data) and stream it into Hbase, and then customize a JRuby script.