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

Using Python (pymongo), the aggregate function also works.

collection.aggregate([{'$sample': {'size': sample_size }}])

This approach is a lot faster than running a query for a random number (e.g. collection.find([random_int]). This is especially the case for large collections.