[squid-users] Check if object is already cached

[Eliezer Croitoru]

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Hey Ulises,

I am unsure about what exactly you have asked.
There are constrains and there is a current interface to squid
internal DB of objects.
The basic way is to use whats already there but since there is too
much unknown about the script you are working on I would try to think
about:
- - HTCP
- - ICP

squidclient man pages may or may not help you.
I remember that there was a tool that pre-fetch content into squid.

Since squid caching algorithm became much more complex, there are
always some cases which you as a cache admin cannot predict unless you
have knowledge on how the system(you want to cache) works.

The complexity of HTCP and ICP is that they are built in a binary
format which for some might not be that simple to work with.

Eliezer

On 12/09/2014 07:04 PM, Ulises Nicolini wrote:
> Hello,
> 
> I'm working with some scripts to prefetch content but having some 
> trouble, what I can't work out is a way to check if a given object
>  is already cached, in other words, I want to check if the object 
> I'm going to download is going to hit, in which case I can ignore 
> it. I've read squidclient man page but could not find something 
> like it
> 
> Thanks
> 
> Ulises


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