Use it for questions about performing routine and other maintenance tasks in Drupal.

In Drupal, setting cron tasks means setting up periodic tasks for housekeeping activities, which can include:

  • Indexing new content
  • Cleaning out expired data from caches
  • Taking database backups
  • Updating content from RSS feeds.

For a module, adding maintenance tasks means implementing hook_cron(), which is the hook invoked by the Drupal cron system when executing cron tasks.