private void reevaluateHealth() {
    if (!poorHealth.isEmpty()) {
      overallHealth = POOR_HEALTH;

    } else if (!okayHealth.isEmpty()) {
      overallHealth = OKAY_HEALTH;

    } else {
      overallHealth = GOOD_HEALTH;
    }
  }
Re-evaluates the overall health of GemFire
geode-core/src/main/java/org/apache/geode/admin/internal/GemFireHealthImpl.java