[syslinux] Opinion wanted: metadata in HTTP requests (updated)

[Andrew Stuart]

On 4/26/2011 2:02 PM, H. Peter Anvin wrote:
> On 04/26/2011 12:51 PM, Andrew Stuart wrote:
>>
>> Hmm, Not my area of expertise, and I don't know what level of overhead
>> it would add, but wouldn't pipelining handle this in a suitable fashion?
>> http://en.wikipedia.org/wiki/HTTP_pipelining
>>
>
> I have no intention of implementing HTTP pipelining or any other kind of
> connection caching; the complexity is off the chart.
>
>> In any case, I would think the problem you present is a major issue.
>> It's still going to outperform tftp I would think. However, the proposed
>> http://example.com/something?? may cause problems for a lot of proxy
>> servers I would imagine.
>
> The proxy servers wouldn't ever see it.
>
>> I for one am experimenting with an internet based ipxe/pxelinux setup,
>> using squid at two locations to cache the content, as opposed to my
>> existing tftp/rsync/etc setup to maintain multiple sites.
>
> Explicit (as opposed to transparent) proxies are a "special" kind of
> headache that I haven't even begun to consider at this point.
>
> 	-hpa

In my situation, I am using transparent proxies, I am attempting to 
configure them such that the content from host x always stays in cache 
unless the server expires it, which seems to be working in my setup
currently, but I only have 2 days of 'testing' on it.

-A