How do I copy a database from one MongoDB server to another?

Question

I have two mongodbs in different server, both start with --auth. Now I want to copy a db from one server to another.

> mongo
> use admin
&         


        

Answer 1

The following worked for me to copy from Ubuntu Server to another Ubuntu Server, both running MongoDB v4+:

1. The following command should be executed from the server, where you want to restore the database:

   ssh -fN -L 27018:127.0.0.1:27017 

2. Now we have mapped our remote server database to our local server port 27018. Next, we can copy from remote server to our destination server using MongoDB's mongodump/mongorestore pipeline:

   mongodump --port 27018 --db  --username  --password  --archive | mongorestore --username  --password  --archive

3. [OPTIONAL] You can check your restored database as followings:

   mongo --authenticationDatabase "admin" -u  -p

   show dbs

Check if your database exists in the list.