How to Fix MongoDB Error Code - 80 - RoleDataInconsistent

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 - 80 - RoleDataInconsistent. In this article, we will explore what this error means and how to fix it.

Understanding MongoDB Error Code - 80 - RoleDataInconsistent

MongoDB Error Code - 80 - RoleDataInconsistent occurs when there is a mismatch between the roles assigned to a user and the roles defined in the system. This error typically arises when you upgrade MongoDB to a new version or when you restore a database from a different MongoDB instance.

When this error occurs, you may see an error message similar to the following:

RoleDataInconsistent: user has roles [role1, role2] missing role3

This error message indicates that the user has been assigned roles 'role1' and 'role2,' but the system cannot find the 'role3' in the roles collection.

Fixing MongoDB Error Code - 80 - RoleDataInconsistent

To fix MongoDB Error Code - 80 - RoleDataInconsistent, you need to ensure that the roles assigned to the user are consistent with the roles defined in the system. Here are the steps to resolve this error:

Step 1: Identify the Inconsistent Role

First, you need to identify the missing role mentioned in the error message. In the example error message above, the missing role is 'role3.'

Step 2: Check the Roles Collection

Next, you should verify if the missing role exists in the roles collection. Connect to your MongoDB instance using the mongo shell or a MongoDB client and run the following command:

use admin
db.getCollection('roles').find({role: 'role3'})

If the role exists, you can proceed to the next step. Otherwise, you need to create the missing role using the appropriate MongoDB commands.

Step 3: Update User Roles

Once you have confirmed that the missing role exists in the roles collection, you can update the user's roles to include the missing role. Run the following command:

use admin
db.updateUser('username', {roles: ['role1', 'role2', 'role3']})

Replace 'username' with the actual username of the user experiencing the error. Make sure to include all the roles assigned to the user, including the missing role.

Step 4: Verify the Fix

After updating the user's roles, you should verify if the error has been resolved. Attempt to perform the operation that triggered the error and check if it executes successfully.

Summary

In conclusion, MongoDB Error Code - 80 - RoleDataInconsistent occurs when there is a mismatch between the roles assigned to a user and the roles defined in the system. To fix this error, you need to identify the missing role, check the roles collection, update the user's roles, and verify the fix. If you encounter this error, follow the steps outlined in this article to resolve it.

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