Use varnish-cache in front of HLS servers for live streaming

[Guillaume Quintard]

Hi,

By default, Varnish only hashes the host and URL (including the query
string):
https://github.com/varnishcache/varnish-cache/blob/master/bin/varnishd/builtin.vcl#L124

So you possibly need to clean the query string.

Or, while unlikely, it could be that your backend is returning a Vary
header, in which case, you should remove the request headers corresponding
to this (ignore content-encoding though)

-- 
Guillaume Quintard


On Thu, Jun 10, 2021 at 3:54 AM Hamidreza Hosseini <hrhosseini at hotmail.com>
wrote:

> Hi,
> I want to use varnish as a cache server in front of my Http live streaming
> servers to serves .ts files to client and I want to ignore caching .m3u8
> files extension to be cached.
> When I read how varnish would cache the objects again, I encountered with
> some issues for example because each clients would request the .ts files
> from varnish directly or through load balancers  (load balancer would pass
> all headers to varnish) so for unique .ts file , varnish will cache the
> file for each client! so I should normalize header or delete some clients
> header or somehow I should tell varnish that this file is unique and dont
> cache it again based on different useless header...
> How can I tell this to varnish or which header should be deleted by
> varnish because I don't know which client would send which header !
> which header would affect on double caching?
> Is there any sample config to satisfy my needs?
>
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>
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