RE: [squid-users] How to optimize squid config for live flash video streaming?

Hello Everyone,

Just one comment and question.

1) we're using the squid to optimize HLS (http based) video streaming exactly via caching, so you can deliver more efficiently a cached video segments instead of directly communicating with an origin server(s).
2) does anyone know, if/when collapsed forwarding feature is going to be incorporated into Squid 3.x?

Best regards,

Andrew

-----Original Message-----
From: Amos Jeffries [mailto:squid3_at_treenet.co.nz]
Sent: Friday, July 20, 2012 10:54 PM
To: squid-users_at_squid-cache.org
Subject: Re: [squid-users] How to optimize squid config for live flash video streaming?

On 21/07/2012 5:58 a.m., J DJ wrote:
> My squid proxy is not caching (using the "cache deny all" in
> squid.conf), and I was wondering if anyone had any suggestions or
> resources on how to optimize it for live flash video streaming?

There is no optimization for live streaming without caching.
The Squid collapsed-forwarding feature for splitting single response to multiple clients relies on responses being cacheable (even if not
stored) so that multiple clients are *allowed* to receive them. Live streams are usually marked as non-cacheable, and Flash video is even worse since each stream has different framing intervals depending on when each client connected with adaptive bitrate frames depending on each clients individual end-to-end latency.

This assumes the stream is an HTTP data stream. A lot of streams these days are ICY protocol, even if displayed by a Flash script interpreter.

Amos
Received on Mon Jul 23 2012 - 13:28:35 MDT