Experiencing the same issue after migrating from User to Service on Windows 10 for VSS.
Problem appears both with
check-filetime-only enabled (basically every file) and disabled (a few files).
All mismatches occur with
size changed: True in the log. All other metadata is the same, but the files actually haven’t changed at all.
Disabling VSS reduces the number of Warnings but still doesn’t eliminate them.
The issue persists on new backup jobs.
I have the same issue with “Metadata was reported as not changed, but still requires being added?” warnings on 184.108.40.206_canary_2018-06-30
I am doing a backup of a lot of files on Windows 10 (most current updates) with VSS activated and set to required. Duplicati was recently migrated from user to service to use VSS, and thats when this problem started to appear. The backup happens completely locally from an SSD (C:) and HDD (D:) to another local HDD (E:).
I am seeing the issue with
check-filetime-only either enabled or disabled:
It happens with basically every file… I got more than 100k Warnings on my backup.
It happens with a few files, generally <100 files affected.
All metadata mismatches show up with
new: False, timestamp changed: False, size changed: True, metadatachanged: False
in the log on
Verbose log-level. Unfortunately I haven’t found a way for the Log to show me the actual file sizes it compares, neither the stored nor the newly seen ones, to do a sanity check on them.
Finally I tried to disable VSS which reduced the number of Warnings, but didn’t elimate them.
So my guess would be that something screws with the file sizes that Duplicati sees when running it as a Service (perhabs being an Admin is also involved?) because none of these Problems happened with a User installation.
I just made a new backup job to eliminate any weird behaviour that might have come from the switch from User to Service and the result is the same.
The initial backup runs through without and issue but all following passes have the “Metadata was reported as not changed, but still requires being added?” warnings with
size changed: True