[squid-users] analyzing cache in and out files

[Matus UHLAR - fantomas]

>Em 29/09/15 10:46, Matus UHLAR - fantomas escreveu:
>>hmm, when did this change?
>>IIRC that was big problem since updates use huge files and fetch 
>>only parts
>>of them, which squid wasn't able to cache.
>>But i'm off for a few years, maybe M$ finally fixed that up...


On 29.09.15 13:57, Leonardo Rodrigues wrote:
>    i'm not a squid expert, but it seems that things became much 
>easier when squid becames fully HTTP/1.1 compliant.

that wasn;t the problem...

>    Caching huge files do not changed, that's needed for caching 
>Windows Update files. Storage space, however, is becaming cheaper 
>every year. In my setup, for example, i'm caching files up to 500Mb, 
>i have absolutely no intention of caching ALL Windows Update files.

the problem was iirc in caching partial objects
http://wiki.squid-cache.org/Features/PartialResponsesCaching

that problem could be avoided with properly setting range_offset_limit
http://www.squid-cache.org/Doc/config/range_offset_limit/
but that also means that whole files instead of just their parts are
fetched.

it's quite possible that microsoft changed the windows updates to be smaller
files, but I don't know anything about this, so I wonder if you really do
cache windows updates, and how does the caching work related to informations
above...
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Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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