MongoDb, Cloning database error: illegal argument combination: cannot specify --db and --uri

2
votes

I am trying to duplicate a database called database_A in the same cluster.
The result should be a new database called database_B with the exact same data.

I am trying to follow the instructions here.

It explains how to do this locally:

  1. Use mongodump to dump the test database to an archive mongodump-test-db:

mongodump --archive="mongodump-test-db" --db=test

  1. Use mongorestore with --nsFrom and --nsTo to restore (with database name change) from the archive:

mongorestore --archive="mongodump-test-db" --nsFrom='test.' --nsTo='examples.'

In order to achieve the same result in the cluster, it says:

Include additional options as necessary, such as to specify the uri or host, username, password and authentication database.

However, when I try to add the uri to achieve the first step:

mongodump --uri mongodb+srv://hihi:[email protected] --archive="mongodump-test-db" --db=test_db

I get this error:

illegal argument combination: cannot specify --db and --uri

Any idea how to solve this?

1
databasemongodbmongoosenosqlmern

1 Answers

1
votes

You have to add db in URI- like connection uri/[db]

mongodb+srv://hihi:[email protected]/test_db

mongodump --uri mongodb+srv://hihi:[email protected]/test_db --archive="mongodump-test-db"

https://docs.mongodb.com/v3.6/reference/program/mongodump/#cmdoption-mongodump-uri

/database Optional. The name of the database to authenticate if the connection string includes authentication credentials in the form of username:password@. If /database is not specified and the connection string includes credentials, the driver will authenticate to the admin database. See also authSource.

https://docs.mongodb.com/v3.6/reference/connection-string/