Large file downloads under IIS hang -?

When attempting to download large files (~30MB+), users have reported
that the download seems to stop and that the website becomes unresponsive.

We have been able to confirm this but have so far been unable to find
the root cause, and are wondering if anyone else has the same problem.

I have searched and found some earlier bug reports related to readfile()
but these were reported as resolved and fixed.

In php.ini, we have modified the following variables to compensate for
the possible extra time, but the problem still persists.

max_execution_time 0
memory_limit -1

System info:
PHP Version 5.2.1
ISAPI
Windows 2003 Server

Has anyone else had any problems with this?

Any feedback would be most appreciated.

Regards,

John Ellingsworth

Re: Large file downloads under IIS hang -?

On Tue, 08 Jan 2008 17:14:44 +0100, John Ellingsworth
wrote:

> When attempting to download large files (~30MB+), users have reported
> that the download seems to stop and that the website becomes
> unresponsive.
>
> We have been able to confirm this but have so far been unable to find
> the root cause, and are wondering if anyone else has the same problem.
>
> I have searched and found some earlier bug reports related to readfile()
> but these were reported as resolved and fixed.
>
> In php.ini, we have modified the following variables to compensate for
> the possible extra time, but the problem still persists.
>
> max_execution_time 0
> memory_limit -1
>
> System info:
> PHP Version 5.2.1
> ISAPI
> Windows 2003 Server

Does this only occur on PHP's readfile(), or with just large files in
general? And do you sent a Content-Length header beforehand?
--
Rik Wasmus