Server: Previews for single shared files is not updated
- upload a file abc.png
- share this file
- overwrite the file abc.png with another image via WebDAV
check the shared link
expected
preview is updated
actual
preview is not updated
MorrisJobke
All 5 comments
This is only stable9
MorrisJobke
on 2 Aug 2016
The issue is non-shared previews:
- Share a folder with a group
- Upload a file a.png to that folder as owner
- As recipient overwrite a.png
- See that the owners preview is not updated
rullzer
on 3 Aug 2016
As discussed in person last week. This boils down to the shared preview issue.
In the current state all previews are bound to the user. Which means that if N people have access to a file N previews will be generated (well N*M since you can have multiple preview sizes). We have no (scaleable) way to clean this up properly.
The solution is we should share previews. This saves time (generation) and space (deduplication) of previews. I'm working on a PR to make this happen.
rullzer
on 8 Aug 2016
I just ran into this as well. There is also no way of fixing this. The owner either has to touch the images so they are resynced and his previews get regenerated or the admin has to delete the users thumbnails directory.
adsworth
on 18 Oct 2016
rullzer
on 3 Nov 2016
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Most helpful comment
As discussed in person last week. This boils down to the shared preview issue.
In the current state all previews are bound to the user. Which means that if N people have access to a file N previews will be generated (well N*M since you can have multiple preview sizes). We have no (scaleable) way to clean this up properly.
The solution is we should share previews. This saves time (generation) and space (deduplication) of previews. I'm working on a PR to make this happen.