title: Magento2 - Bulk Operations Consumer Issue
body: <p>I am trying to create a publisher and a consumer to handle a big import. I have succesfully managed to set up the publisher in order to push messages to the queue, the problem is that the consumer is not called in order to read the messages and execute the scheduled operations.</p>
  
  <p>The only documentation I have found is only : <a href="https://devdocs.magento.com/guides/v2.2/extension-dev-guide/message-queues/implement-bulk.html" rel="nofollow noreferrer">https://devdocs.magento.com/guides/v2.2/extension-dev-guide/message-queues/implement-bulk.html</a></p>
  
  <p>I followed the guide , but it doesn't seem to work properly. All the bulks are scheduled correctly but they don't start. Is there a cron that takes care of this or the consumer should just be called after the bulk is created?</p>
  
  <p>Thank you!</p>