Random record from MongoDB

Question

I am looking to get a random record from a huge (100 million record) mongodb.

What is the fastest and most efficient way to do so? The data is already t

Answer 1

The following aggregation operation randomly selects 3 documents from the collection:

db.users.aggregate( [ { $sample: { size: 3 } } ] )

https://docs.mongodb.com/manual/reference/operator/aggregation/sample/