Is it safe to use --scale with Duplicati and Docker Compose?

Support
1

Hi,

I am wanting to scale the instances of Duplicati with the --scale switch for the docker-compose up command.

Ideally I would like 3-5 instances running for better parallelisation of large backup jobs that run hourly.

My biggest concern is database corruption if 2 instances try to run the same backup job.

Is this safe? and if not, is there a better way to achieve this?

Thank you!

2

Hello and welcome.

No, you cannot run multiple instances of Duplicati that work on the same underlying database. It was not built for horizontal scaling.

3

Great, thank you for the advice. I assumed this would be the answer but wanted to confirm. :slight_smile: