#27584 [Fbk->Opn]: flush sometimes don't work

ID: 27584 User updated by: xuefer at 21cn dot com Reported By: xuefer at 21cn dot com -Status: Feedback +Status: Open Bug Type: Apache2 related Operating System: * PHP Version: 4.3.5RC3 New Comment: tested with lastest build without Rang: Sun Mar 14 00:30:21 2004 GET /test.php HTTP/1.1 Sun Mar 14 00:30:21 2004 Host: 127.0.0.1 Sun Mar 14 00:30:21 2004 Accept: */* Sun Mar 14 00:30:21 2004 User-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows 98) Sun Mar 14 00:30:21 2004 Pragma: no-cache Sun Mar 14 00:30:21 2004 Cache-Control: no-cache Sun Mar 14 00:30:21 2004 Connection: close Sun Mar 14 00:30:21 2004 HTTP/1.1 200 OK Sun Mar 14 00:30:21 2004 Date: Sat, 13 Mar 2004 16:30:21 GMT Sun Mar 14 00:30:21 2004 Server: Apache/2.0.48 (Win32) Sun Mar 14 00:30:21 2004 Connection: close Sun Mar 14 00:30:21 2004 Transfer-Encoding: chunked Sun Mar 14 00:30:21 2004 Content-Type: binary with Rang: Sun Mar 14 00:31:41 2004 GET /test.php HTTP/1.1 Sun Mar 14 00:31:41 2004 Host: 127.0.0.1 Sun Mar 14 00:31:41 2004 Accept: */* Sun Mar 14 00:31:41 2004 User-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows 98) Sun Mar 14 00:31:41 2004 Range: bytes=839516- Sun Mar 14 00:31:41 2004 Pragma: no-cache Sun Mar 14 00:31:41 2004 Cache-Control: no-cache Sun Mar 14 00:31:41 2004 Connection: close Sun Mar 14 00:31:42 2004 HTTP/1.1 200 OK Sun Mar 14 00:31:42 2004 Date: Sat, 13 Mar 2004 16:31:41 GMT Sun Mar 14 00:31:42 2004 Server: Apache/2.0.48 (Win32) Sun Mar 14 00:31:42 2004 Content-Range: bytes 839516-96413656/96413657 Sun Mar 14 00:31:42 2004 Content-Length: 95574141 Sun Mar 14 00:31:42 2004 Connection: close Sun Mar 14 00:31:42 2004 Content-Type: binary Previous Comments: ------------------------------------------------------------------------ [2004-03-13 04:56:27] sniper@php.net Please try using this CVS snapshot: http://snaps.php.net/php4-STABLE-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-STABLE-latest.zip ------------------------------------------------------------------------ [2004-03-12 21:45:17] xuefer at 21cn dot com Description: ------------ it works under apache1, but not on apache2 this script is used for network-speed testing yet, i don't know if it's relative to php or apache Reproduce code: --------------- <?php header("Content-Type: binary"); // while (@ob_clean()); set_time_limit(5); // may be 1 $fp = fopen("/dev/urandom"); $u = fread($fp, 1024 * 1024); // 1mb while (1) { echo $u; ob_flush(); flush(); } ?> Expected result: ---------------- under apache1, each time request to this file will download start from 0% immediately tested under IE & Flashget Actual result: -------------- but under apache2, 1st time seems ok, cancel IE download or stopped flashget, then try again(with "Rang" header), download will not start until script is timedout, then, start with a content-length in response header the process of apache2 is taking so much memory about XXmb even 1XXmb ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=27584&edit=1