Re: [squid-users] inconsistency with objects in squid cache

Amos,

    I have configured squid.conf

request_header_access Vary deny all

put the squid ignores this and still appears the Vary: Accept-Encoding
Is there a way to delete the row of squid Vary: Accept-Encoding?

2014-04-07 20:49 GMT-03:00 Amos Jeffries <squid3_at_treenet.co.nz>:
> On 8/04/2014 2:02 a.m., Sylvio Cesar wrote:
>> 2014-04-06 13:46 GMT-03:00, Eliezer Croitoru <eliezer_at_ngtech.co.il>:
>>> On 04/06/2014 05:29 PM, Sylvio Cesar wrote:
>>>> but this happens only in the network 10.21.155.0/24.
>>> then squid.conf and the debug_options output would help to understand if
>>> it is the reason or there is another reason.
>>>
>>> Eliezer
>>>
>>
>> Hi Eliezer,
>>
>> I noticed that when there is the header "Vary:
>> Accept-Encoding,User-Agent" the object is not cached.
>
> The object *is* cached...
>
>> ------
>>
>> KEY 7351B3AA6DB80247DE63873CAB59CFE8
>> STORE_OK IN_MEMORY SWAPOUT_DONE PING_DONE
>> CACHABLE,DISPATCHED,VALIDATED
>
> Note the "CACHEABLE" and "STORE_OK" and "SWAPOUT_DONE".
>
>> LV:1396873562 LU:1396873566 LM:1394577094 EX:-1
>> 0 locks, 0 clients, 1 refs
>> Swap Dir 0, File 0X000001
>> GET http://xxx.example/video/video.flv
>> vary_headers: accept-encoding,
>> user-agent="curl%2F7.19.0%20(i686-suse-linux-gnu)%20libcurl%2F7.19.0%20OpenSSL%2F0.9.8h%20zlib%2F1.2.3%20libidn%2F1.10"
>
> However only a client which sends the *exact* headers marked above will
> be able to fetch it.
>
>> inmem_lo: 0
>> inmem_hi: 15089604
>> swapout: 15089604 bytes queued
>>
>>
>> KEY E08FBDC74EAD09CEBCC38380DACCF63F
>> STORE_OK IN_MEMORY SWAPOUT_DONE PING_NONE
>> CACHABLE,VALIDATED
>> LV:1396873566 LU:1396873566 LM:-1 EX:1396973566
>> 0 locks, 0 clients, 0 refs
>> Swap Dir 0, File 00000000
>> GET http://xxx.example/video/video.flv
>> inmem_lo: 0
>> inmem_hi: 227
>> swapout: 227 bytes queued
>>
>>
>> How to make squid perform the object cache when found in the header
>> "Vary: Accept-Encoding,User-Agent"???
>>
>
> Always fetch using the same browser agent. Any time the Accept-Encoding
> OR User-Agent header changes (even by 1 byte) a new object will be
> fetched and cached.
> ... this is not a reasonable thing for real users to do. They all
> choose a mix of browsers, players and versions.
>
> Alternatively if you have control over the web server it needs
> redesigning in a way that prevents Vary:User-Agent from being sent.
>
> Amos

-- 
Att,
Sylvio César,
LPIC1, LPIC2, RHCT, RHCE, NCLA, FreeBSD Committer.
----
Se vós estiverdes em mim, e as minhas palavras estiverem em vós,
pedireis tudo o que quiserdes, e vos será feito. João 15:7