The number of documents have become large after using a Database over 2 years. Then, the size of the database became big, too.
I want to divide the database into 2 databases on the basis of a category.
Which should I use the replica or the copy of database ?
But,
the former has a risk of the unexpected deletion of a document during replication after the document is deleted from a database of two replica,
while
The latter has the problem of the disappearance from the links.
What should I do?