MongoDB InsertMany vs BulkWrite

Question

I am using MongoDB for keeping log data. And my goal is zero dropped log record. Now I am using InsertManyAsync for writing multiple log data. But in MongoDB there is also method like BulkWriteAsync.

What is the difference in performance between InsertMany and BulkWrite? In local writing and writing over network?

score 52 · Accepted Answer · edited May 12 '21 at 21:51

Ok that's two questions:

InsertMany vs BulkWrite

Using BulkWrite you can do many operations in a single connection to mongoDB. Internally, InsertMany uses BulkWrite, so there's no difference, it's just for convenience.

This question was already solved.

Sync vs Async

When you perform a sync operation, your aplication will wait for MongoDB to finalize the work. With a async operation you can perform many operations at the same time. Server, and client side.

This was already solved too.

score 2 · Answer 2 · answered Mar 29 '22 at 06:00

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BulkWrite supports a mix of writing operations (inserts, delete and update), while insertMany, as indicated by its name, only inserts documents.

answered Mar 29 '22 at 06:00

Cabrinha

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This should be the top answer in my opinion. – Abdel Shokair May 11 '23 at 20:44

score -2 · Answer 3 · answered Mar 03 '16 at 00:41

-2

BulkWriteAsync under the cover uses InsertManyAsync for insert operations. The only difference is BulkWriteAsync allows you to perform different operations (insert, update, delete) under one roof. However if you are debating between BulkWriteAsync and InsertManyAsync for inserting bunch of documents, it's recommended to use InsertManyAsync directly.

answered Mar 03 '16 at 00:41

Saleem

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_BulkWriteAsync under the cover uses InsertManyAsync_ FYI it's actually the other way around, InsertMany uses BulkWrite – Binary Worrier Mar 13 '18 at 14:38

MongoDB InsertMany vs BulkWrite

3 Answers3