Does MongoDB have backup?
You can create a backup of a MongoDB deployment by making a copy of MongoDB’s underlying data files. If the volume where MongoDB stores its data files supports point-in-time snapshots, you can use these snapshots to create backups of a MongoDB system at an exact moment in time.
Where are MongoDB users stored?
MongoDB stores shard local users in the admin database of the shard itself. These shard local users are completely independent from the users added to the sharded cluster via mongos . Shard local users are local to the shard and are inaccessible by mongos .
What is the role of MongoDB admin?
Database Administration Roles. Provides the ability to perform administrative tasks such as schema-related tasks, indexing, and gathering statistics. This role does not grant privileges for user and role management. Starting in version 4.2, MongoDB removes the system.
How do I login as admin in MongoDB?
You can connect to MongoDB with your Joyent Public Cloud admin user credentials, which you can find in your my.joyent.com portal. The MongoDB server is configured to listen to the localhost (127.0. 0.1) and with authentication enabled. To run the commands in this page, you must be logged in as root or use sudo .
How to create a database backup in MongoDB?
Mongodump database utility takes database backup by connecting to the mongodb instance. We can take backup for an entire server, single database, single collection, or part of collection using mongodump utility in MongoDB.
Is there way to control access to MongoDB?
MongoDB provides a number of built-in roles that administrators can use to control access to a MongoDB system. However, if these roles cannot describe the desired set of privileges, you can create new roles in a particular database.
How to revoke a role in MongoDB database?
You must have the revokeRole action on a database to revoke a role on that database. To view a role’s information, you must be either explicitly granted the role or must have the viewRole action on the role’s database. Connect to mongod or mongos as a user with the privileges specified in the prerequisite section.
What does mongodump do to the MongoDB database?
By default, mongodump does not capture the contents of the local database. mongodump only captures the documents in the database. The resulting backup is space efficient, but mongorestore or mongod must rebuild the indexes after restoring data. When connected to a MongoDB instance, mongodump can adversely affect mongod performance.