Cache files
/WEB-INF/state/cache
To improve both security and performance, PageSeeder stores files in the cache folder. These include image thumbnails and the system cache. There is generally no need to change these files manually.
The file organization and format of the cache files might change between releases and is handled automatically by PageSeeder.
Image thumbnails
When a user views an image, PageSeeder automatically generates a low resolution thumbnail of it to make serving the image faster.
You can safely delete files in the /WEB-INF/state/cache/thumbnail folder as they are automatically recreated by PageSeeder, but this might affect performance if your system contains a lot of images.
PageSeeder automatically deletes associated image thumbnails when an image or group is archived or deleted.
System cache
PageSeeder automatically stores the following system files using ehcache .
| Cache | Key | Contents | Purpose |
|---|---|---|---|
| account-lockout | Username | Failed sign in attempts info (object) | security |
| client-origins | Origin URL | CORS support (boolean) | performance |
| edit-comparisons | Edit IDs + dates | Diff between edits (XML) | performance |
| external-favicons | Host | Favicons used in URLs (Image) | performance |
| file-inspection | File path | Result of file inspection (object) | performance |
| group-state | Group ID | Dates of latest updates (object) | performance |
| membership-etags | Member ID | Etag (long) | performance |
| profile-pictures | Member ID | Profile picture (image) | performance |
| publication-tocs | Publication ID + host (+ version) | Table of Contents of publications (object) | performance |
| publication-tocs-version | performance | ||
| reset-password-lockout | Failed sign in attempts info (object) | security | |
| url-hosts | Host | Date last checked (long) | performance |
| url-metadata | Host | Metadata (object) | performance |
| user-details | Member ID | Group flags (object) | performance |
| validation-results | Group ID + URI ID | Schematron validation results (object) | performance |
| webhook-events | Event ID | Webhook events (object) | performance |
| webhook-failed-jobs | Job ID | Webhooks failed jobs (object) | performance |
| webhook-jobs | Job ID | Webhooks jobs (object) | performance |
| xml-documents | Group ID + URI ID | PSML content (object) | performance |
Manually modifying or deleting these files might corrupt your system.
Use the Server status > Caching page in the system administration to view and manage the cache contents.
API services
The following services let you manage the cache more effectively:
- /caches [GET]
- /caches/clear [POST]
- /caches/{name} [GET]
- /caches/{name}/clear [POST]
- /caches/{name}/elements [GET]
- /caches/{name}/elements/{key}/remove [POST]