title: Laravel Horizon inactive and still processing
body: <p>I run my Application on Kubernetes.
  I have one Service for requests and one service for the worker processes.
  If I access the Horizon UI it often shows the Inactive Status, but there are still jobs being processed by the worker. I know this because the JOBS PAST HOUR are getting more.</p>
  
  <p>If I scale up my worker service there will be constantly "failing" Jobs with this exception Illuminate\Queue\MaxAttemptsExceededException.
  If I connect directly to the pods and run ps aux I will see that there are horizon instances running.</p>
  
  <p>If I connect to a pod on which the worker is running and execute the horizon:list command it tells me that one (or multiple) Masters are running.</p>
  
  <p>How can I further debug this?</p>
  
  <p>Laravel version: 5.7.15</p>
  
  <p>Horizon version: 2.0.0</p>
  
  <p>Redis version: 3.2.4</p>