Re: PHP download page blocking other HTTP requests
| From: | Richard Quadling | Date: | Tue, 07 Jun 2011 09:13:04 +0000 |
| Subject: | Re: PHP download page blocking other HTTP requests | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-313426@lists.php.net to get a copy of this message | ||
On 7 June 2011 09:24, Pete Ford <pete@justcroft.com> wrote:
> On 06/06/11 21:07, Richard Quadling wrote:
>>
>> On 6 June 2011 13:55, Pete Ford<pete@justcroft.com> wrote:
>>>
>>> Is there something on the Apache/PHP end that might be causing this
>>> blocking? (Apache 2.2.10, PHP 5.2.14)
>>
>> The browser and / or OS may be obeying the settings about the number
>> of simultaneous connections per host.
>> http://support.microsoft.com/kb/183110 /
>> http://www.ietf.org/rfc/rfc2616.txt 8.1.4 Practical
>> Considerations ...
>>
>> " Clients that use persistent connections SHOULD limit the number of
>> simultaneous connections that they maintain to a given server. A
>> single-user client SHOULD NOT maintain more than 2 connections with
>> any server or proxy. A proxy SHOULD use up to 2*N connections to
>> another server or proxy, where N is the number of simultaneously
>> active users. These guidelines are intended to improve HTTP response
>> times and avoid congestion."
>>
>> Also, (from googling)
>>
>>
>> http://forums.serverbeach.com/showthread.php?6192-Max-Concurrent-Connections-Per-Host,
>> mod_throttle and/or mod_bandwidth may be capable of restricting the
>> number and/or speed of connections.
>>
>
> Thanks Richard,
>
> There's no mod_throttle or mod_bandwidth, but I SHOULD have remembered
> RFC2616. I'll look into working with that, although I'm having trouble
> reproducing the problem since my dev machine sits on the same network as the
> server and the files come down too quickly!
> Maybe I can use a redirect or something to force a new connection...
>
One option may be to use a sub-domain for the downloads, that way,
you could allow the main site to run as fast as needed and have
downloads on a different setup and not subject to the same limit.
--
Richard Quadling
Twitter : EE : Zend : PHPDoc
@RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY : bit.ly/lFnVea