1. Backup and Restore Database
in MongoDB
By: Prem Regmi

2. What’s the most important
thing about making backups?
RESTORING THEM

3. Backup Options
• Mongodump
• Copy files
• Snapshot disk

4. mongodump
• Dumps collections to *.bson files
• Mirrors your structure
• Can be run in live or offline mode-

5. mongodump

6. mongodump
• Type mongodump in your terminal
• mongodump --db hero(hero is the database
name)
• Database save inside dump folder

7. mongodump

8. mongorestore
• mongorestore
• Restore all database inside dump

9. Repair
• Repair all databases on the server:
• $ mongod –repair
• Repair Database command to repair a single
• database:
> use project_development
> db.runCommand({repairDatabase: 1})
• which operate on a single collection :
rebuild indexes
>use tuotorial_development
> db.employee_qualifications.reIndex()
compact the collection
> db.runCommand({ compact: "employee_qualifications" }

10. Recover MongoDB
• Unexpected Shutdown
• Error: couldn't connect to server 127.0.0.1
shell/mongo.js:84

11. Solution
• Remove the mongod.lock file
• Run the --repair process