MongoDB backup plan

Question

I want to switch from MySQL to MongoDB but great data losses (more than 1 hour) are not acceptable for me.

I need to have 3 backup plans:

1. Hourly

Answer 1

Try this backup script if you want to create a backup from slave mongodb database to S3.

1. DB host (secondary preferred as to avoid impacting primary performance)

   HOST='SomeHost/mongodbtest-slave'

2. DB name DBNAME=***

3. S3 bucket name BUCKET=*-backup

4. Linux user account USER=ubuntu

5. Current time TIME=/bin/date +%d-%m-%Y-%T

6. Password PASSWORD=somePassword#!2*1

7. Username USERNAME=someUsername

8. Backup directory DEST=/home/ubuntu/tmp

9. Tar file of backup directory TAR=$DEST/../$TIME.tar

10. Create backup dir (-p to avoid warning if already exists) /bin/mkdir -p $DEST

11. Log echo "Backing up $HOST/$DBNAME to s3://$BUCKET/ on $TIME";

12. Dump from mongodb host into backup directory

mongodump --port 27017 -d DBNAME -u USERNAME -p PASSWORD -o $DEST

13. Create tar of backup directory /bin/tar cvf $TAR -C $DEST .

14. Upload tar to s3 /usr/bin/aws s3 cp $TAR s3://$BUCKET/

15. Remove tar file locally /bin/rm -f $TAR

16. Remove backup directory /bin/rm -rf $DEST

All done echo "Backup available at https://s3.amazonaws.com/$BUCKET/$TIME.tar

You can use the steps above put them in a shell executable file and execute this at any interval using crontab commands.