Poll backend until it comes online

[greg.ewing]

For me, it would be helpful if duplicati could poll the backend either continuously, or starting at a scheduled time. When the backend comes online backup starts.

This would be most helpful for me during level-0 backup as the backend is far away on the internet and I don’t control when it is powered on. A pillar would allow the level-0 backup to continue whenever the remote backend is online. Similarly inflcrememtal backups would start when the backend comes online, perhaps with an optional configurable pause after a successful
Poll before starting the backup, to allow the remote system to settle down.

I could do this with bash scripts etc, but it would be platform independent of it were a feature of duplicati.

Thanks

[JonMikelV]

Yep - this has been discussed a number of times. Usually it’s either your scenario (no control over offsite destination availability) or “do backup when USB drive connection like CrashPlan did”.

Backup only when host is reachable; retry backup that was missed due to connection issues

Hi, I am one of the people looking into alternatives for crashplan. Crashplan was the better “all-complete” package, but duplicati is very promising and it is going to be not only a replacement but an advancement. Keep up the good work! What I really miss in duplicati is the ability to do a backup once the connection is available / i.e. retry till it is available. The usecase is as follows: A laptop is not always connected and/or the target host is not always reachable. I set up duplicati to …

So far the proposed (by me) option I like the best is basically:

• at scheduled run time if job has not COMPLETED within the previous X hours and destination is not available, then re-schedule job for Y minutes later UNLESS that puts it past next normal scheduled run time

However, implementing such a thing is beyond me at the moment. Perhaps a GitHub post with a bounty request might make it happen sooner…