I have a need to remove all nodes of the same type in Drupal 8 (there are over 7k of nodes).
It wouldn\'t be a problem for Drupal 7 (DB query + node_del
One should use entity queries instead of acting directly on the database:
$result = \Drupal::entityQuery('node')
->condition('type', 'my_content_type_name')
->execute();
entity_delete_multiple('node', $result);
Setting up ranges like in the other answer shouldn't be too difficult.
See EntityFieldQuery has been rewritten for more information.