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mongodbauthenticationmongodump
Vladislav Orillo
Vladislav Orillo

Reputation: 2257

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

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.

Upvotes: 81

Views: 94668

Answers (14)

Gert van den Berg
Gert van den Berg

Reputation: 2776

If you use the --uri option, you need to add authSource=admin as a parameter to your connection string (assuming your user is on the admin database)

mongodump --uri="mongodb://user:pass@host1:27017,host2:27017,host3:27017/?replicaSet=rs0"

Becomes:

mongodump --db=test --uri="mongodb://user:pass@host1:27017,host2:27017,host3:27017/?replicaSet=rs0&authSource=admin"

Upvotes: 2

Joshi
Joshi

Reputation: 2790

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.

Upvotes: 7

Aero Wang
Aero Wang

Reputation: 9247

userAdminAnyDatabase is not enough to do mongodump on all the dbs that's why you are getting this error. You will need a super user that has:

userAdminAnyDatabase
readWriteAnyDatabase
clusterAdmin

privileges to run mongodump on all dbs.

OR you just need 'backup' privilege

db.grantRolesToUser('username', [{
  role: 'backup',
  db: 'name of ur authentication db'
}])

Upvotes: 2

Ganesh
Ganesh

Reputation: 757

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.

Upvotes: 21

user2722165
user2722165

Reputation: 31

In my case, mongodump was not correctly processing the password. The solution was to escape the password literal.

This did not work:

mongodump -p my$password -o <output directory>

This did work:

mongodump -p 'my$password' -o <output directory>

Upvotes: 3

windyzboy
windyzboy

Reputation: 1375

If you are using mLab then it could be the version in your local mongo is not match with mLab. By default, Ubuntu will install mongo v2.x and mLab is v3.x. You could check with this command:

mongo --version

Install new mongo version:

  1. Remove your old local mongo (be careful, it may remove all your local database)
sudo apt remove mongo-clients mongodb
  1. Import the public key used by the package management system.
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv D68FA50FEA312927

  1. Create a list file for MongoDB.

    • Ubuntu 14.04
echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list
  • Ubuntu 16.04
echo "deb http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list
  1. Install the MongoDB packages
sudo apt-get install -y mongodb-org

Ref: https://docs.mongodb.com/v3.2/tutorial/install-mongodb-on-ubuntu/

Now you can dump your database with this command:

mongodump -h <host>:<port> -d <database-name> -u <user> -p <password> -o <output directory>

Upvotes: -1

Vladislav Orillo
Vladislav Orillo

Reputation: 2257

work with this:

--authenticationDatabase admin

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

Upvotes: 143

Marcelo Lazaroni
Marcelo Lazaroni

Reputation: 10247

I was having this same problem when trying to dump my database info from mLab. It was happening because I had mongo 2.x locally and 3.x in mLab. Upgrading my local mongo to the same major version as mLab allowed me to do the dump, thus solving the problem.

Upvotes: 0

adeel
adeel

Reputation: 361

Use signle Quotation around password. if you are using any special character in your password. That will solve your issue. Use following command.

mongodump -d database_name -u userName -p 'password' --out directory_name

Upvotes: 2

Gyanendro Loitongbam
Gyanendro Loitongbam

Reputation: 71

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

Upvotes: 7

user2996950
user2996950

Reputation: 499

The following steps worked for me on MongoDB 3.2:

  1. Check of course if your admin username and pw are correct. You can do this with the mongo shell:

mongo

use admin db.auth("admin", "yourpassword")

If this returns 1, the password is correct.

  1. Then add the role "backup" to your admin (or make sure this role is already added). db.grantRolesToUser("admin", [{ role: "backup", db: "admin" }])

  2. Finally, the mongodump command. It did not work for me when I tried to pass the password as an argument. Instead do this:

mongodump --username admin --authenticationDatabase admin --db yourmongodatabase

Then add your password when it promts for it.

This works for me...

Upvotes: 4

Shirish Singh
Shirish Singh

Reputation: 857

If you still get same error with --authenticationDatabase admin , than probably your username and password are incorrect. Try adding a user db.createUser() , with appropriate role ( i gave write permission as well)

than run below command : (ignore -h if you are running on local)

 mongodump -h <ip>:<port_number> -d db_name -u newUser -p newPassword -o /home/mongodump/

Hope this helps...

Upvotes: 5

Milos Matic
Milos Matic

Reputation: 2059

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.

Upvotes: 37

user3784566
user3784566

Reputation: 51

for dump and restore

mongodump --db nameDatabase --username userName --password password --authenticationDatabase admin --out mongodb\
mongorestore --db nameDatabase --username userName --password password --authenticationDatabase admin <path backup> --drop

Upvotes: 5

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