Re: PHP download page blocking other HTTP requests

From: 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 
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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

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