Hello @Riad_Hossain !
I am not aware of a particular “limit” in database quantity … as for scalability and efficiency, a bigger concern would be what is in your collections, etc.
This post has a good breakdown of those concepts:
Hi @Nagarajan_Palaniappa ,
For general information, please see MongoDB Limits and Thresholds in the MongoDB documentation. You’ll note that this doesn’t specifically mention a limitation on the number of databases or collections, but I’ll explain why below.
The maximum document size in MongoDB is currently 16MB, but if you are approaching that I would definitely give serious consideration to whether your data model can be improved. For some related commentary, see: Use case for storing pages of…
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