anchor.diff:  exec 2>> $LOGFILE
   
   evacuate() {
  -  curl --fail --silent http://$ADDRESS/evacuate >/dev/null 2>&1
  +  curl --fail --max-time 600 --silent http://$ADDRESS/evacuate >/dev/null 2>&1
   }
   
   heartbeat() {
  
positive.code: 
  echo "$(date): rep is done..evacuating nfsv3driver"
  
  if evacuate; then
    for i in {1..60}; do
      if heartbeat; then
        echo "$(date): waiting"
  
negative.code:     echo "$(date): evacuation failed"
    fi
  
    #See https://www.pivotaltracker.com/story/show/165747144/comments/202416034
    echo $exit_code >&3
  }
  
  