RE: [squid-users] Squid 3.1.1 and flash video scrubbing

My range_offset_limit and quick_abort_* setting were all default.

I tried setting range_offset_limit -1 - did not fix the problem

quick_abort_min 0 and quick_abort_max 0 - did not fix the problem

quick_abort_min -1 - did not fix the problem


The type of urls its having problems with are like these,


1270696241.147 3691 172.16.16.199 TCP_MISS/200 3069898 GET http://server437.files.youporn.com/e4/flv/426677_Splash.flv?e=1273284436&h=47ee1fbcb8d3ab05a06988683c2d94c1 - DIRECT/208.111.181.139 video/x-flv
1270696248.438 7293 172.16.16.199 TCP_MISS/200 1442091 GET http://server437.files.youporn.com/e4/flv/426677_Splash.flv?e=1273284436&h=47ee1fbcb8d3ab05a06988683c2d94c1&fs=4281434 - DIRECT/208.111.181.139 video/x-flv

The first one is the initial video player loading the flv. This request works correctly and the video starts to download.

The second URL is when I jump the video player slider ahead of the downloading video, note the fs=4281434 added to the url.

Its this fs= parameter that changes the behavior of the download. You could wget the first url and a flv would download. Wgetting the second url keeps making wget retry even though the website sends back a 200 OK.

I have this all setup in a lab so if you want tcpdumps I can provide them.
 

-----Original Message-----
From: Amos Jeffries [mailto:squid3_at_treenet.co.nz]
Sent: Wednesday, April 07, 2010 8:36 PM
To: squid-users_at_squid-cache.org
Subject: Re: [squid-users] Squid 3.1.1 and flash video scrubbing

On Wed, 7 Apr 2010 14:41:42 -0500, David Robinson
<drobinson_at_pavlovmedia.com> wrote:
> I've started doing field tests of 3.1.1 and a interesting bug has showed
> up. If you try to jump ahead in a partially loaded video from
youporn.com
> or redtube.com the flash player freezes and doesn't continue to download
> the video. With squid off, you would be able to jump to any part of the
> video and have it continue playing. I've tested this on 3.1.1, 3.1.0.14
and
> 3.1.0.15 and they all have the same behavior. I've also tested this on
> squid 2.7 and both sites work properly.
>
> Can some other users confirm this before I submit a bug report?
>
> Using squid 3.1.1 on Debian 5.0.1 2.6.30.10 kernel

What range_offset_limit and quick_abort_* settings are you working with?

Also, are you able to track down any info about what the requests hitting
Squid are? headers, etc

Amos
Received on Thu Apr 08 2010 - 03:32:32 MDT