On 02/05/2012 01:47, Amos Jeffries wrote:
On 02.05.2012 10:12, Ghassan Gharabli wrote:
AS I understand that nginx removes Range header as well as several
other headers
before passing request to upstream to make sure full response will be
cached and other requests for the same uri will be served correctly.
stripping the range header -> wonderful benefit
Squid at least in versions 2.7 and up, refuses to cache 206 Partial
Content responses by default. It is possible to use a combination of
the range_offset_limit and quick_abort_min to force Squid to cache the
request, but Squid will still strip off the Range header and try to
request the entire object but It is still not a good solution.
stripping the range header -> not good
Which one is it?
Do you know anything about VARNISH which has experimental support for
range requests as you can enable it via the “http_range” runtime
parameter.
i do now about VARNISH that supports range requests and i never tried
using it.
you cant every theoretically consider varnish for youtube caching.
well microsoft updates is another story so it can be considered.
What I have already found is that Varnish will try to request the
entire file from the back-end server, and only if the entire file is
in the cache, will it successfully respond with a partial content
response and not contact the back-end server.
Does Squid has the ability to remove Range Header ?
Squid-3.2:
range_offset_limit none youtube
or for older Squid versions:
request_header_access Range deny youtube
in any case the range in hot used using plain "headers" but using a url
argument on youtube.
so it wont help anyway.
Eliezer
Amos
--
Eliezer Croitoru
https://www1.ngtech.co.il
IT consulting for Nonprofit organizations
eliezer <at> ngtech.co.il
