[Django]-Django replica data save to many databases

Django does not solve the problem of replication for you.

Usual approach for replication – one database for write with several replicas for read. Replication is done on database level (not django), i.e. database is configured to write its transaction log, read-replicas sync this log and replay it.

Django multiple database configuration allows to specify different database URLs for read and write, and / or specify different databases for different applications or even tables – which is more a concern of database clustering, not replication.