title: OS error load averages unobtainable greenlet celery stackoverflow
body: <p>I am frequently running into this error.
  <a href="https://i.stack.imgur.com/IuqS7.png" rel="nofollow noreferrer">Error Image</a></p>
  
  <p>This is happening when I am running celery worker with Gevent Thread.
  This error starts coming frequently after its first incidence.</p>
  
  <p>I am using
  Python 2.7
  Celery 4.0.2
  OS Ubuntu 14.04</p>