[squid-users] Getting the full file content on a range request, but not on EVERY get ...

Heiler Bemerguy heiler.bemerguy at cinbesa.com.br
Thu May 12 00:37:17 UTC 2016


Hey guys,

First take a look at the log:

root at proxy:/var/log/squid# tail -f access.log |grep 
http://download.cdn.mozilla.net/pub/firefox/releases/45.0.1/update/win32/pt-BR/firefox-45.0.1.complete.mar
1463011781.572   8776 10.1.3.236 TCP_MISS/206 300520 GET 
http://download.cdn.mozilla.net/pub/firefox/releases/45.0.1/update/win32/pt-BR/firefox-45.0.1.complete.mar 
- HIER_DIRECT/200.216.8.9 application/octet-stream
1463011851.008   9347 10.1.3.236 TCP_MISS/206 300520 GET 
http://download.cdn.mozilla.net/pub/firefox/releases/45.0.1/update/win32/pt-BR/firefox-45.0.1.complete.mar 
- HIER_DIRECT/200.216.8.32 application/octet-stream
1463011920.683   9645 10.1.3.236 TCP_MISS/206 300520 GET 
http://download.cdn.mozilla.net/pub/firefox/releases/45.0.1/update/win32/pt-BR/firefox-45.0.1.complete.mar 
- HIER_DIRECT/200.216.8.9 application/octet-stream
1463012000.144  19154 10.1.3.236 TCP_MISS/206 300520 GET 
http://download.cdn.mozilla.net/pub/firefox/releases/45.0.1/update/win32/pt-BR/firefox-45.0.1.complete.mar 
- HIER_DIRECT/200.216.8.32 application/octet-stream
1463012072.276  12121 10.1.3.236 TCP_MISS/206 300520 GET 
http://download.cdn.mozilla.net/pub/firefox/releases/45.0.1/update/win32/pt-BR/firefox-45.0.1.complete.mar 
- HIER_DIRECT/200.216.8.32 application/octet-stream
1463012145.643  13358 10.1.3.236 TCP_MISS/206 300520 GET 
http://download.cdn.mozilla.net/pub/firefox/releases/45.0.1/update/win32/pt-BR/firefox-45.0.1.complete.mar 
- HIER_DIRECT/200.216.8.32 application/octet-stream
1463012217.472  11772 10.1.3.236 TCP_MISS/206 300520 GET 
http://download.cdn.mozilla.net/pub/firefox/releases/45.0.1/update/win32/pt-BR/firefox-45.0.1.complete.mar 
- HIER_DIRECT/200.216.8.32 application/octet-stream
1463012294.676  17148 10.1.3.236 TCP_MISS/206 300520 GET 
http://download.cdn.mozilla.net/pub/firefox/releases/45.0.1/update/win32/pt-BR/firefox-45.0.1.complete.mar 
- HIER_DIRECT/200.216.8.32 application/octet-stream
1463012370.131  15272 10.1.3.236 TCP_MISS/206 300520 GET 
http://download.cdn.mozilla.net/pub/firefox/releases/45.0.1/update/win32/pt-BR/firefox-45.0.1.complete.mar 
- HIER_DIRECT/200.216.8.32 application/octet-stream

Now think: An user is just doing a segmented/ranged download, right? 
Squid won't cache the file because it is a range-download, not a full 
file download.
But I WANT squid to cache it. So I decide to use "range_offset_limit 
-1", but then on every GET squid will re-download the file from the 
beginning, opening LOTs of simultaneous connections and using too much 
bandwidth, doing just the OPPOSITE it's meant to!

Is there a smart way to allow squid to download it from the beginning to 
the end (to actually cache it), but only on the FIRST request/get? Even 
if it makes the user wait for the full download, or cancel it 
temporarily, or.. whatever!! Anything!!

Best Regards,

-- 
Heiler Bemerguy - (91) 98151-4894
Assessor T├ęcnico - CINBESA (91) 3184-1751

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