Here is our use case: We have way more than 200,000 clients need to connect to firebase realtime db. So we created multiple database with same data and load blance the connections.

Here is the problem: If we update one database, we will have to initiate connection and udpate the rest of the database as well. I would like to check if there is a way to auto sync up data between multiple databases.

Docs I have went through: https://firebase.google.com/docs/database/usage/limits https://firebase.google.com/docs/database/usage/sharding

Also I checked rules, and it seems that rules is not meant to be used to sync data.

Thanks

CodePudding user response：

firebaser here

There is nothing built into Firebase to automatically synchronize data between multiple database instances. A common way to implement this when writing through a server-side process, is to simply write to each database in turn there.

If the data you want to write comes from a client-side SDK, I'd have the client write it to a staging area (just a temporary node in the database), and then use Cloud Functions to write the data the permanent location in all database instances.