my $ua = LWP::UserAgent->new;
  $ua->timeout(120);

  $HA_HTTP_GET_URL .= htt://10.0.x.x/ui/sample.php;
  my $response = $ua->get($HA_HTTP_GET_URL);
  if ($response->is_success)
  {
    $HA_HTTP_GET_TRY_COUNT = 0;
  }
  else
  {
    $HA_HTTP_GET_TRY_COUNT++;
  }