@Override
    public void run() {
      if (!isCoordinator || isStopping) {
        cancel();
      } else {
        sendCurrentView();
      }
    }
ViewBroadcaster periodically sends the current view to all current and departed members. This
ensures that a member that missed the view will eventually see it and act on it.
geode-membership/src/main/java/org/apache/geode/distributed/internal/membership/gms/membership/GMSJoinLeave.java