Hi,

I know this has been asked before, but I could not find a definitive answer.
I tried different solutions, nothing worked.

I have a PHP script that has to do time intensive operations and provide a
status update from time to time. No way around it.
I built a sample PHP script:
<?
@ini_set('zlib.output_compression',0);
@ini_set('implicit_flush',1);
@ob_end_clean();
ob_end_flush();
$i=0;
while($i<10)
{
        echo "$i\n";
        ob_flush();
        flush();
        sleep(1);
        $i++;
}
?>

I have output_buffering = Off in php.ini

In nginx I have
                location ~ \.php$ 
                {
                        try_files               $uri =404;
                        fastcgi_pass    unix:/var/run/php5-fpm.sock;
                        fastcgi_index   index.php;
                        fastcgi_param   SCRIPT_FILENAME 
$document_root$fastcgi_script_name;
                        include                 fastcgi_params;

                        gzip off;
                        proxy_buffering off;
                        fastcgi_keep_conn on;                     
                        fastcgi_buffers       128 1k;  # up to 1k + 128 * 1k
                        fastcgi_max_temp_file_size 0;
                        fastcgi_buffer_size   1k; 
                        fastcgi_buffering off;
                }
(yeah, I put everything and the kitchen sink)

Server is Ubuntu 13.04, nginx 1.5.9, php 5.4.9

Any ideas?

Posted at Nginx Forum: 
http://forum.nginx.org/read.php?2,247451,247451#msg-247451

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