Invalid character $ in database name: $external

[chris (Chris Dellaway)]

@Maansi_Chandira

It’s a DocumentDB Cluster Endpoint

Its not MongoDB, it is not MongoDB Atlas, so that is certainly the issue.

$in between MongoDB and DocumentDB

Welcome to the MongoDB Community @Huang_Huang ! Amazon DocumentDB is an independent emulation of a subset of features for the associated MongoDB server version they claim compatibility with. The server implementations do not have any code in common, so it is not surprising if there are differences (sometimes significant) in behaviour and feature support. If you are trying to understand performance issues for DocumentDB, I recommend asking on Stack Overflow or an AWS product community: Newest …