MongoDB's Hidden Knobs No One Talks About

Wednesday 4.55PM-5.20PM

@ Field Suite 2


25 minutes conference


Developer, Operations

Unlike MySQL (and the MySQL manual), there are hidden variables in MongoDB that no one really documents. But they can control things such as how data sets are returned, to connection pool size/ timeouts, to even if intersections should be allowed.

In this talk, we will show you examples of these knobs, how to find them on GitHub, what they are for and when to use them.

Beyond that, we will also talk about some very unknown WiredTiger and MongoRocks internal engine settings that are useful for when your database grows and needs a bit of tweaking to save the day.


David Murphy

David Murphy (Percona)

MongoDB Practice Manager, Mongo Master Alumni


David is the Practice Manager for MongoDB at Percona. Prior to that he was one of the early memeber for ObjectRocket the leader in DBaaS for MongoDB specializing in performance. Prior to this he was a Database Architect as Electronic Arts , the game producer and help various systems, networking and development roles. His work includes things like sharding, distributed systems, tool building, very large-scale issues, and high-performance MongoDB architecture and design. As a speaker, he prefers to focus on solutions in the real world to issues, to this point he tries to regularly publish code to help everyone use his solutions or have ideas to inspire their own.Additionally, he is a Mongo Master Alumni and core code contributor to MongoDB and other open source technologies.


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