NEW YORK, New York
MongoDB expert
Areas of Expertise:
- MongoDB
- NoSQL
- writing
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Kristina blogs at:
http://www.snailinaturtleneck.com
February 02 2012
One of the most common questions we get is: I have a collection of blog posts and each post has an array of comments. How do I get… …all comments by a given author …the most recent comments …the most popular commenters? And so on. The answer to this has… read moreJanuary 27 2012
This is a supplement to the Hacking Chess with the MongoDB Pipeline. This post has instructions for rolling your own data sets from chess games. Download a collection of chess games you like. I’m using 1132 wins in less than 10 moves, but any of them should work. These files… read moreHacking Chess with the MongoDB Pipeline
January 26 2012
MongoDB’s new aggegation framework is now available in the nightly build! This post demonstrates some of its capabilities by using it to analyze chess games. Make sure you have a the “Development Release (Unstable)” nightly running before trying out the stuff in this post. The aggregation framework will be in… read moreAnd now, for something completely different
January 18 2012
Probably only relevant to a limited portion of my audience, but Silicon Valley Ryan Gosling is awesome. I have never seen anything like and I’m not sure what the point is, but I know I’m a fan. Go forth and be sexy and supportive for the female programmers you know. read moreReplica Set Internals Bootcamp: Part I – Elections
January 04 2012
I’ve been doing replica set “bootcamps” for new hires. It’s mainly focused on applying this to debug replica set issues and being able to talk fluently about what’s happening, but it occurred to me that you (blog readers) might be interested in it, too. There are 8 subjects I cover… read morePopping Timestamps into ObjectIds
December 20 2011
ObjectIds contain a timestamp, which tells you when the document was created. Because the _id field is always indexed, that means you have a “free” index on your “created at” time (unless you have persnickety requirements for creation times, like resolutions of less than a second, synchronization across app servers,… read moreSQL to MongoDB: An Updated Mapping
December 09 2011
The aggregation pipeline code has finally been merged into the main development branch and is scheduled for release in 2.2. It lets you combine simple operations (like finding the max or min, projecting out fields, taking counts or averages) into a pipeline of operations, making a lot of things that… read moreWebcast: Scaling with MongoDB
September 17, 2010
Duration: Approximately 60 minutes. Cost: Free MongoDB's architecture features built-in support for horizontal scalability, and high availability through replica sets. Auto-sharding allows users to easily distribute data across many nodes. Replica...
Webcast: How Sharding Works
February 04, 2011
Duration: Approximately 60 minutes. Cost: Free This talk is a combination of whitepaper and Magic School Bus tour of how MongoDB scales across multiple machines. For applications that outgrow the resources of a single database server, MongoDB can...
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