Database Backups and Restoration

Recommend you to use the mongodump for database backup and the mongorestore for restoring the backup state of the database at a certain time. Thus, it is possible to avoid the data security threat caused by the misoperation in the creation and deletion process of the DocDB for MongoDB. This backup is an off-line backup. In the backup and restoration process, the database stops providing read/write services. So, recommend you to operate at a lower peak of the business.

• Backup command

    #mongodump --host <hostname> --port <port> --authenticationDatabase <admin>
    -u <user> -p <passwd> -o <dst_dir>

• Restoration command

    #mongorestore --host <hostname> --port <port> --authenticationDatabase <admin> 
    -u <user> -p <passwd>  <dst_dir>

In the command above, the parameters are as follows::

Parameter	Description
--host	Means the CVM Server to which the service connects
--port	Port number is 27017 in general
-- authenticationDatabase	User authorization to operate the database
-u	The user name that connects to the DocDB for MongoDB service
-p	The password that connects to the DocDB for MongoDB service
-o	Target path for data backup/restoration without the “-o” parameter

Practical Operation

Create a DocDB for MongoDB Instance

Create a DocDB for MongoDB instance with a replica set architecture in the availability zone B. For the creation process, see the Enable Service .

Enter the instance and view the connection information.

Create/log in to the BCC Instance

Create a BCC in the availability zone B under the same VPC as the DocDB for MongoDB instance, and log in to the public network IP of the BCC remotely by shell. For the process of creating a BCC, see Create BCC Instance.

Connect to the DocDB for MongoDB service remotely from the BCC machine. For the connection method, see Connection Instance.

Create a db/collection

Using the DocDB for MongoDB service to remotely create the databases mydb and youdb, and create the common collection mycollection and capped type collection capcollection under mydb, and write the document data in the collection respectively. The results after operation are as follows:

Backups/Restore All Database

It can directly back up all the database with one key and directly restore the database. The corresponding operation is as follows:

Backups/Restore Single Database

You can select a database in the service for backup and restore operations. Operations are as follows:

Backups/Restore Single Collection

Select a collection from a database in the service for backup/recovery.

• Operations targeting at common collection are as follows:

• Operations targeting at capped type are as follows:

FAQs

How To Remotely Connect to the DocDB for MongoDB Service

For details, see FAQs.

Remote Connection to Cloud Database DocDB for MongoDB Failed

For details, see FAQs.

All Mongodump Backups DB Error

For details, see FAQs.

Do I Need to Use Mongodump for Data Backup?

For details, see FAQs.

Where is the Backup File Be Saved When Using Mongodump for Data Backup?

For details, see FAQs.

The data is backed up by mongodump. If you want to restore the cloud database, can you directly roll back the original DocDB for MongoDB data by data backup?

For details, see FAQs.

Does The Process of Backup or Restoration Interrupts When Using the Mongodump For Data Backups? How to Deal with Broken? Does the Use of the Mongodump for Data Backup Affect Business?

For details, see FAQs.

Does the Use of Mongodump for Data Backup Affect Business?

For details, see FAQs.