Global Bandwidth Limits problem

bean · - Joined: 10 Feb 2005 Posts: 20

I can't get this PHP script to work like I want it to. http://www.hotscripts.com/Detailed/64866.html .

I can't seem to find the problem. Is it the script or the "Bandwidth Limits" that's gives me the problems? It only gives problems when the Global Bandwidth Limits are set. The problem is that the download speed gets very very unstable. Sometimes it even stop the download.

I use Abyss Web Server X2 v2.3.0.5. Have MySQL and PHP4.0 installed. Even tryed PHP4.3 as I thought it might be a PHP problem. I also tryed X1 2.5 without any luck. Could someone try to install the script and see if Im the only one that have this problem? The script is a directory sniffer so you just upload some files to a directory and the PHP script will show what you have uploaded.

When you run the script for the first time all seem to work. Then try to stop the download - refresh the page and try to download again. That's where the problem starts.

I hope someone can help me out.

TRUSTAbyss · - Joined: 29 Oct 2003 Posts: 3752 Location: USA, GA

Edit: Read Admin's reply.
Bandwidth Throttling doesn't work for PHP scripts since Abyss sends the script to the Interpreter (PHP Processor).

bean · - Joined: 10 Feb 2005 Posts: 20

Crap.

Thanks for the reply!

admin · Site Admin Joined: 03 Mar 2002 Posts: 1295

pkSML · - Joined: 29 May 2006 Posts: 952 Location: Michigan, USA

Yes, I've dealt with the same issue. I had a script that served an MP3 file in real time. It was a bandwidth throttle script, so a user couldn't just download it in a breeze.

Anyways, after thirty seconds, the script just stopped. It turned out to be the timeout value for CGI scripts.
For PHP scripts, just add this (thanks to Andy @ Abyssunderground):

bean · - Joined: 10 Feb 2005 Posts: 20

It works when I download a file for the first time. The PHP.ini is set to big filesizes. So I can download the first file without any problems.
But - if I stop the download - refresh the page and try to download it again the problem starts. All this I can do within 3 seconds. And it only happens when bandwidth throttling is enabeled.
Anyone tryed the script yet?

aprelium · - Joined: 22 Mar 2002 Posts: 6800

bean,

We tested the script and here is the explanation of what is happenning:

Say you have a 2000 KB file and that you set global bandwidth throttling to 10 KB/s.

You click the file in the script page, the download starts, its speed is limited to 10 KB/s (we assume no one else is using your server at the same time).

Now you stop the download in your browser. The connection is closed on the browser side but the server needs some time (from a few seconds to 10 more seconds in some cases) to get notified about that.

During these seconds, the server continues to send data from its end to the client (and consumes bandwidth). That's why your second download seems so slow.

You'll have to wait for a while until the server notices that the connection was closed, and stop sending data (the already sent data will be lost). After that everything will work fine.
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bean · - Joined: 10 Feb 2005 Posts: 20

Thanks, aprelium! Im no PHP guru but I see what you are saying. The PHP.ini I had was set to 1800 seconds. Setting it to 60 I can also download with max bandwidth throttle again after a 1 minut waiting time.
Thanks again - problem solved.

loloyd · - Joined: 03 Mar 2006 Posts: 435 Location: Philippines

Thank you for the information on this, Aprelium and bean. Now I can better appreciate the timeouts from within PHP.ini and from Abyss's Scripting Parameters settings.
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