[squid-users] Squid4 has extremely low hit ratio due to lacks of ignore-no-cache

Eliezer Croitoru eliezer at ngtech.co.il
Sun Oct 25 23:50:20 UTC 2015

I cannot speak for the Squid project and you may ask the squid-dev more 
about it and also see the release notes about it.
What I can is that the phrase "it's not a bug, it's a feature" can work 
the other way around "it's not a feature, it's a bug" and as you have 
mentioned "it worked yesterday" and yes... some will look at this as a 
bug from a caching point of view.


On 25/10/2015 22:53, Yuri Voinov wrote:
> Hash: SHA256
> I can not understand why so much dropped for caching of https. This is
> very critical in the modern conditions, for obvious reasons. In older
> versions of the same for this to work. And it does not have the
> slightest desire to write or use a third-party services or crutches. As
> well as the search for workaround for functionality that worked yesterday.
> 26.10.15 2:15, Eliezer Croitoru пишет:
>> On 25/10/2015 21:28, Yuri Voinov wrote:
>>> It's not about that. It's about the fact that, with exactly the same
>>> parameters caching and maintaining the cache at the same URL, which I
>>> used to get 85% cache hit, I am now, with a SQUID 4, I get 0%. That's
> all.
>> OK then, if it's that important for you and it worth money for the
> business you are running\working for think about writing an ECAP module
> or an ICAP service that will do this same thing and sometimes will do
> more then you are asking for.
>> I didn't mentioned this before but you if you are using a non tproxy
> environment you can use two squid instances to get the same effect.
>> You would be able to asses the network stress you have and decide
> which of the solution is for you.
>> Maybe you are already know the article I wrote at:
>> http://wiki.squid-cache.org/ConfigExamples/DynamicContent/Coordinator
>> Which you can use to use a similar thing.
>>  From my side of the picture I think you are over-simplifying the issue.
>> I cannot speak for everyone and I know that there are other opinions
> about this subject and similar other but, I can say for sure that from
> what I have seen, squid have had many issues which resulted from the
> basic fact the it was something like a "geany in lamp" project which
> many just asked for something they needed.
>> If you do not know, some literally *hate* squid.
>> One of the reasons is that it has a huge list of open bugs which are
> waiting for someone to find them attractive enough to write a patch for
> them.
>> And yes with exactly the same parameters which resulted in 85% cache
> hit you are now getting 0% like you should have been.
>> I am not sure how many users are happy with this change and I
> encourage others to write their opinions and ideas about it.
>> I am staying with my suggestions for a set of solutions for the
> specific issue.
>> I am not the greatest squid programmer but if someone will fund my
> time I will might be able to write a module that will do just what you
> and maybe others want. And if I might add that it's like in any other
> software, you have an API and you can use it. if you think it's
> important file a bug and send your question to the squid-dev list with
> hope that you will get some answers even if these will not be to your
> liking.
>> All The Bests,
>> Eliezer
>> * Somebody told me on squid once something like "I am sharing your
> sorrow" while I was very happy with it.
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>> squid-users mailing list
>> squid-users at lists.squid-cache.org
>> http://lists.squid-cache.org/listinfo/squid-users
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