title: Celery w/ Redis broker: Is it possible to have more 10k connection
body: <p>Currently, redis has maxclients limit of 10k
  So, I cant spawn more than 10k celery workers (a celery worker with 200 prefork across 50 machines).</p>
  
  <p>Without changing redis maxclient limit, what are some of the things I can do to accommodate more than 10k celery workers?</p>
  
  <p>I was thinking setting up master-slave redis cluster but how would a celery daemon know to connect different slaves?</p>