What does "occ file:scan -all" actually do (with oc_filecache)?

ℹ️ Support
1

Hello,

to me it is still not clear what it exactly does - also in relation to the oc_filecache:

  • does it scann all connected storage/folders recursively - also new folders and add them to oc_filecache?
  • or does it only scan known files/folders from the oc_filecache?
  • does it validate oc_filecache and also remove entries when files are deleted or external_shares are disconnected?
  • does it validate he data/cache folders and clean them up?

espacially its connection to the oc_filecache is very interesting to me because it seems only be growing and growing.
clearing the table and rescanning is also not a good solution if you are using shares or e.g. audioplayer because they rely on the file-id from filecache

thank you…

2

oc_filecache is not a cache, but a file index. Renaming is not possible, but don’t treat it like a cache, so never manually do stuff there (e.g. delete entries, purge, etc)

That is what is mostly used for

No

No

No

1 Like
3

thank you for the quick answer.

…but is there a cleanup process somehow available?
I can see that I connected a quite big SMB share for testing. I removed it again but several 1000 files seem to remain in oc_filecache.

4

Try occ files:cleanup but other then that I wouldn’t do anything

2 Likes
5

thank you for that.
I did not recognize when this was added to the docu

files:cleanup tidies up the server’s file cache by deleting all file entries that have no matching entries in the storage table.

6

Sorry for posting on an old thread,
but, is there any problem if i use nextcloud while a file:scan --all is happening?
could the database broke?

thanks!

7

I got some database index corruption in oc_filecache and was not able to repair it. Am I right that doing occ files:scan --all will fully recreate this database table?

I did this several times without any problems. My corruption was most likely caused by apache+mysql service restart during occ preview:generate-all ran in background screen :stuck_out_tongue_closed_eyes:. Lucky me that my nextcloud instance is just for private use, playing and tinkering around.