php bin/console doctrine:cache:clear-metadata

Clears all metadata cache for an entity manager

Usage

doctrine:cache:clear-metadata [--em EM] [--flush]

      --em      Name of the entity manager to operate on 
      --flush   If defined, cache entries will be flushed instead of deleted/invalidated.

The doctrine:cache:clear-metadata command is meant to clear the metadata cache of associated Entity Manager.