this post was submitted on 13 Oct 2024
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Syncthing should have inotify support which allows it to watch for changes rather than polling. Does that help?
Yep, this is how I do it on my NAS, which is some RockPro64 board attached to WD Red spin drives. I have music, movies, game saves, documents, pics, etc. that equal around 1.5TB and I don't seem to get excess scanning when "watch files" is turned on.
Yes, Syncthing does watch for file changes... that's why I am so puzzled that it also does full rescans :)
Maybe they do that to catch changes that may have been made while syncthing was not running... it may make sense on mobies, where the OS like to kill processes willy-nilly, but IMHO not on a "real" computer
Is it worth raising an issue with the project? Also enable logging to see if there are any clues as to why a rescan is being done?
another reason for doing that 8s that inotify is not guaranteed to tell about every change. I think it's in the inotify or inotify-watch man page
You can set it to do full scans however often you like, even monthly.
Or to catch if you start in a different OS and make changes to files that are then not tracked.