A sound indexing strategy is critical for application performance. However, optimizing your queries proactively - before they cause problems in production - can require both a bit of art and science. How do you figure out why a query isn't performing as anticipated? And how do you know when you need an index, or how to index on which fields? In this talk, we'll show you how to use explain plans and indexes in Compass to diagnose and mitigate issues related to query performance. By the end of the session, you'll gain a deeper understanding of how to assess query performance with Compass, as well as the tradeoffs for adding or removing indexes early in the development process.Speakers: Shelby Carpenter, Senior Product Marketing Manager, Developer Tools and APIs at MongoDB and Julia Oppenheim, Product Manager at MongoDB.


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