Wiki

• in config.php

  enable_previews -> true / false
  preview providers -> check for certain type

• storage location:

  data/appdata_instanceid/preview

• previewgenerator app

  generates previews to preview storage location
  using config settings
  ''occ preview:cleanup''
  ''occ preview:pre-generate'' -> only new files!
  ''occ preview:generate-all -vvv --workers=n username''
  ''occ files:scan-app-data''

• pre-v33: oc_filecache table

• from v33: oc_previews table

1. config.php : 'enable_previews' ⇒ false,
2. occ preview:cleanup
3. DELETE FROM oc_filecache WHERE path LIKE 'appdata_<instanceid>/preview/%';
4. occ files:scan-app-data
5. config.php : 'enable_previews' ⇒ false,

1. disable ALL nc cron jobs
2. run fix
3. log in with nc user: e.g. w_nc (don't sudo, not working)
4. nc_directory # php occ preview:generate-all -vvv –workers=n username
5. re-activate cron-jobs