Additional steps required after a MongoDB snapshot restore
The following steps are required after you restore a MongoDB snapshot. Even though the restore operation itself is successful, these steps are required for the application database to be available for normal use again.
Note:
These manual steps are not required in case of a disk-level restore to the same location.
Perform the following steps
- Ensure that the snapshot restore operation has completed successfully and a new disk is created and attached to the application host (in case of a disk-level restore) or the application host is up and running (in case of a host-level restore).
- Connect to the application host.
- Mount the attached disk on the application host using the following command:
# sudo mount /dev/<diskname> /<mountdir>
Here, <diskname> is the name of the new disk that was created after restore, and <mountdir> is the path where you want to mount the disk.
- Edit the MongoDB config file
/etc/mongod.confand set the dbPath parameter value to the<mountdir>path that you specified in the earlier step. - Start the MongoDB service on the application host and verify that the service is running.
Use the following commands:
# sudo systemctl start mongod.service
# sudo systemctl status mongod.service
Note:
In case of a disk-level restore to a new host, ensure that
mongois installed on that host. - Log on to the MongoDB server using the MongoDB client and verify that the database is running.