MongoDB and the fine art of data modeling
Introduction This is the third part of our MongoDB time series tutorial, and this post will emphasize the importance of data modeling. You might want to check the first part of this series, to get familiar with our virtual project requirements and the second part talking about common optimization techniques. When you first start using MongoDB, you’ll immediately notice it’s schema-less data model. But schema-less doesn’t mean skipping proper data modeling (satisfying your application business and performance requirements). As opposed to a SQL database, a NoSQL document model is more focused towards… Read More
A beginner’s guide to MongoDB performance turbocharging
Introduction This is the second part of our MongoDB time series tutorial, and this post will be dedicated to performance tuning. In my previous post, I introduced you into our virtual project requirements. In short, we have 50M time events, spanning from the 1st of January 2012 to the 1st of January 2013, with the following structure: We’d like to aggregate the minimum, the maximum, and the average value as well as the entries count for the following discrete time samples: all seconds in a minute all minutes in an hour all… Read More
MongoDB time series: Introducing the aggregation framework
In my previous posts I talked about batch importing and the out-of-the-box MongoDB performance. Meanwhile, MongoDB was awarded DBMS of the year 2013, so I therefore decided to offer a more thorough analyze of its real-life usage. Because a theory is better understood in a pragmatic context, I will first present you our virtual project requirements. Introduction Our virtual project has the following requirements: it must store valued time events represented as v=f(t) it must aggregate the minimum, maximum, average and count records by: seconds in a minute minutes in an hour… Read More
NoSQL is not just about BigData
Introduction There is so much debate on the SQL vs NoSQL subject, and probably this is our natural way of understanding and learning what’s the best way of storing data. After publishing the small experiment on MongoDB aggregating framework, I was challenged by the JOOQ team to match my results against Oracle. Matching MongoDB and Oracle is simply honoring Mongo, as Oracle is probably the best SQL DB engine. Being a simple experiment, it’s dangerous to draw any conclusion, since I was only testing the out-of-the-box Mongo performance, without taking advantage of… Read More
