In this talk I will briefly go over what Neustar does and what real user monitoring is. Then I will talk about why we chose MongoDB as our storage solution for the expected massive amount of data we plan to collect. Then I will go more into details about our data model, our architecture with Amazon AWS, aggregation jobs, etc. After that I will talk about daily operations such as maintenance, backups, and using Mongo MMS for monitoring. Finally I will talk about what is coming up with MongoDB in this project: using sharding for scaling out and the new aggregation framework for advanced features of our product.