Chapter 8. Indexing and query optimization

This chapter covers

  • Basic indexing concepts and theory
  • Practical advice for managing indexes
  • Using compound indexes for more complex queries
  • Optimizing queries
  • All the MongoDB indexing options

Indexes are enormously important. With the right indexes in place, MongoDB can use its hardware efficiently and serve your application’s queries quickly. But the wrong indexes produce the opposite result: slow queries, slow writes, and poorly utilized hardware. It stands to reason that anyone wanting to use MongoDB effectively must understand indexing.

But for many developers, indexes are a topic shrouded in mystery. This need not be the case. Once you’ve finished this chapter, you should have a good ...

Get MongoDB in Action, Second Edition: Covers MongoDB version 3.0 now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.