The article is interesting, but title is fud. Besides, all this is not unexpected: > How does MongoDB ensure consistency? > Applications can optionally read f

The article is interesting, but title is fud. Besides, all this is not unexpected: > How does MongoDB ensure consistency? > Applications can optionally read from secondary replicas, where data is eventually consistent by default. Reads from secondaries can be useful in scenarios where it is acceptable for data to be slightly out of date, such as some reporting applications. https://www.mongodb.com/faq https://www.mongodb.com/faq