title: AWS autoscale ELB status checks grace period
body: <p>I'm running servers in a AWS auto scale group. The running servers are behind a load balancer. I'm using the ELB to mange the auto scaling groups healthchecks. When servers are been started and join the auto scale group they are currently immediately join to the load balancer.</p>
  
  <p>How much time (i.e. the healthcheck  grace period) do I need to wait until I let them join to the load balancer?</p>
  
  <p>Should it be only after the servers are in a state of running?</p>
  
  <p>Should it be only after the servers passed the system and the instance status checks?</p>