Permission denied while accessing Hypertable in CGI program

I'm trying to develop a Web app in Perl using Hypertable. Sample code:

#!/usr/bin/perl -w
use strict;
use warnings;
use CGI;
use CGI::Carp qw/fatalsToBrowser warningsToBrowser/;
use CGI::Session ('-ip_match');
use Hypertable::ThriftClient;
use Data::Dumper;

my $q = new CGI;
print $q->header(-cache_control => "no-cache, no-store, must-revalidate");

eval {
    my $client    = new Hypertable::ThriftClient("localhost", 38080);
    my $namespace = $client->open_namespace("glinpe");
    my $result    = $client->hql_exec($namespace, "select * from words where row=\"maths\" keys_only");
};

if ($@) {
    if ($@->isa('Thrift::TException')) {
        print Dumper($@);
    } else {
        print Dumper($@);
    }
}
print "<h1>works</h1>";

The problem is when trying to execute from a web browser I get an error:

$VAR1 = bless( { 'code' => 0, 'message' => 'TSocket: Could not connect to localhost:38080 (Permission denied)' }, 'Thrift::TException' );

The scripts works properly when running from a terminal(under apache user), and as well in a browser if remove all Hypertable code.

I have 38080 port opened in iptables:

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 38080 -j ACCEPT

OS: Centos 5.6.

OK, so there is two solution to this particular problem: 1. disable selinux - change configuration in /etc/selinux/config 2. run command:

setsebool -P httpd_can_network_connect 1

Thanks to previous answer for putting me back on track.