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How to fix MongoDB Error Code – 35 – UserModificationFailed

How to Fix MongoDB Error Code – 35 – UserModificationFailed

MongoDB is a popular NoSQL database that offers high performance, scalability, and flexibility. However, like any software, it can encounter errors that need to be resolved. One such error is MongoDB Error Code – 35 – UserModificationFailed. In this article, we will explore the causes of this error and provide step-by-step solutions to fix it.

Understanding MongoDB Error Code – 35 – UserModificationFailed

MongoDB Error Code – 35 – UserModificationFailed occurs when there is an issue with modifying a user in the database. This error can be encountered when trying to update a user’s roles, privileges, or other attributes. It indicates that the modification operation has failed due to certain reasons.

Possible Causes of MongoDB Error Code – 35 – UserModificationFailed

There are several potential causes for this error:

  • Insufficient Privileges: The user attempting to modify another user may not have the necessary privileges to perform the operation.
  • Invalid User: The user being modified may not exist or may have been deleted.
  • Connection Issues: Network connectivity problems or issues with the MongoDB server can also lead to this error.

Fixing MongoDB Error Code – 35 – UserModificationFailed

Here are some steps you can take to resolve this error:

1. Check User Privileges

Ensure that the user attempting to modify another user has the necessary privileges. You can use the following command to grant the required privileges:

db.grantRolesToUser("admin", [{ role: "userAdminAnyDatabase", db: "admin" }])

This command grants the “userAdminAnyDatabase” role to the “admin” user in the “admin” database. Adjust the role and user as per your requirements.

2. Verify User Existence

Confirm that the user being modified exists in the database. You can use the following command to list all users:

db.getUsers()

If the user does not exist, you can create a new user using the following command:

db.createUser({ user: "username", pwd: "password", roles: [{ role: "readWrite", db: "database" }] })

Replace “username,” “password,” and “database” with appropriate values.

3. Check Connection

Ensure that you have a stable network connection to the MongoDB server. You can test the connection using the following command:

ping mongodb://localhost:27017

If the connection is not successful, check your network settings and ensure that the MongoDB server is running.

Summary

In conclusion, MongoDB Error Code – 35 – UserModificationFailed can occur due to insufficient privileges, invalid user, or connection issues. To fix this error, you should check user privileges, verify user existence, and ensure a stable connection to the MongoDB server. If you encounter any further issues or need assistance, consider reaching out to a professional MongoDB hosting provider like Server.HK for expert support.