Can't create backup mongodump with --db. Authentication failed

Question

When I create backup of all databases in MongoDB (version 3):

mongodump --username bacUser --password 12345

It's OK. But when I try to create backup of a selected db:

mongodump --username bacUser --password 12345 --db test

It gives me this error:

Failed: error connecting to db server: server returned error on SASL authentication step: Authentication failed.

Solution 1

work with this:

--authenticationDatabase admin

mongodump and mongorestore commands need the name of database where mongodb user's credentials are stored. (thanks @Zubair Alam)

Solution 2

This should work.

mongodump -h SERVER_NAME:PORT -d DATABASE_NAME -u DATABASE_USER -p PASSWORD

Also this error can popup if username or password are wrong.

Solution 3

mongodump --host <host-ip> --port 27017 --db <database>  --authenticationDatabase admin --username <username> --password <password> --out ./Documents/

After all the trail, I found above working command to dump from mongdb.

Solution 4

mongodump --collection coll_name --db DBname  -u UName -p *** 
          --authenticationDatabase <admin/privileged> --host ip  
          --port portNo  --out foldName

Solution 5

mongodump   --authenticationDatabase admin -uroot -pyourpassword

here root is username and yourpassword is your password.

This command will backup/dump all database back-up in current directory.

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