Hi Alex,

Thanks for your quick answer.

> For a more complete picture, I would test with four sequential requests, two 
> with one URL and two with another.

I get a HIT for the two request when i retry each one which let me think than 
the store-id computed is not the one from the helper but the plain url.

I also tried to force each request to go through my helper with " 
store_id_bypass off"
When I do that performance go dramatically down (i have around 400 users behind 
squid).

>That is one of many possibilities. Your best bet may be to examine Squid 
>debugging log to understand whether the right Store ID is computed for each 
>request and, if yes, why the second request misses. See debug_options in 
>squid.conf.documented.
>If setting debug_options to "ALL,7" overwhelms you with noise, try something 
>like "ALL,3 33,7 47,7 61,7 85,7". If you cannot figure it out, then use 
>"ALL,9" and share a pointer to compressed cache.log containing just the two 
>transactions (to start with).

Ok i will try these settings, i let you know.

BR,

Thomas PALFRAY

-----Message d'origine-----
De : Alex Rousskov <rouss...@measurement-factory.com> 
Envoyé : vendredi 11 décembre 2020 18:01
À : Thomas PALFRAY <t...@numen.mg>; squid-users@lists.squid-cache.org
Objet : Re: [squid-users] Questions regarding "store-id" made by helper and log 
system

On 12/11/20 1:42 AM, Thomas PALFRAY wrote:

> When i call the first request of my example of output help, then the 
> second, i get a MISS.

For a more complete picture, I would test with four sequential requests, two 
with one URL and two with another.


> I suppose that there's not using the same store-id.

That is one of many possibilities. Your best bet may be to examine Squid 
debugging log to understand whether the right Store ID is computed for each 
request and, if yes, why the second request misses. See debug_options in 
squid.conf.documented.

If setting debug_options to "ALL,7" overwhelms you with noise, try something 
like "ALL,3 33,7 47,7 61,7 85,7". If you cannot figure it out, then use "ALL,9" 
and share a pointer to compressed cache.log containing just the two 
transactions (to start with).


HTH,

Alex.
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