@Override
  protected void check(List<HealthStatus> status) {
    checkVMProcessSize(status);
    checkMessageQueueSize(status);
    checkReplyTimeouts(status);
    // will have to add another call to check for roles
    // missing and reliability attributed.
    checkCacheRequiredRolesMeet(status);

    updatePrevious();
  }
Updates the previous values of statistics
geode-core/src/main/java/org/apache/geode/admin/internal/MemberHealthEvaluator.java