Lots of files seem to be considered 'changed'



I’m currently running Duplicati -, have been avoiding the latest Canary due to people reporting speed issues.

I’ve just noticed that one of my daily backups is taking a very long time today. On further investigation, I’m getting lots of messages like this:

10 May 2018 15:12: Checking file for changes /var/spool/music/tagged/FLAC/P/Pink Floyd/The Dark Side of the Moon/Pink Floyd - The Dark Side of the Moon (CD 2).flac, new: False, timestamp changed: True, size changed: False, metadatachanged: True, 29/07/2015 08:29:39 vs 29/07/2015 08:29:39

This seems to be saying the timestamp of a file has changed, but the timestamps it’s listing are the same.

Any suggestions?




It’s now moved onto another backup job, and it seems to be doing the same thing with that one.

I have recently updated my linux kernel and mono, could it be related to that do you think?




The good news is that now it’s re-run the daily job (that yesterday took over a day instead of about 30 minutes) it’s zipped through it again at about the normal rate.

Looks like something has happened recently (perhaps in the mono update?) that has caused it to look like a load of files have changed, forcing Duplicati to actually read the files instead of just ignoring them.



Sorry for the delayed response - but I’m glad to hear you solved your issue with…patience! :wink:

I suspect you are correct that either the kernel or mono update changed something in how times were recorded or reported (perhaps a type change more for accuracy or higher values) and Duplicati could see the difference but the logged value didn’t show it.

Like saying 1 and 00001 are not the same number or a timestamp of 08:29:39.0 not being the same as 08:29:39.001 but because the display rounds up to the second you can’t see the difference.

Either way, you’re right - once the new dates (whatever was different about them) were recorded Duplicati could go back to just using timestamps instead of full file scans.

I went ahead and flagged your post as the solution - please let me know if you disagree.



It’s been a bit of a pain because it’s taking a long time for some of the larger jobs, due to it having to inspect a lot more files than it should have. Will keep an eye on it, but I think it’s probably something to do with the mono update.