[squid-users] Squid returns a lot of ABORTED in access log and user navigation speed slows

[Andre Bolinhas]

Hi Alex
Thanks for your feedback, in this case enable 
client_persistent_connections and server_persistent_connections could 
help or is better to keep it disable?

Best regards

On 15/05/2024 19:24, Alex Rousskov wrote:
> On 2024-05-15 14:08, Andre Bolinhas wrote:
>
>> I'm not using pipeline_prefetch, because pipeline_prefetch breaks the 
>> NTLM/Kerberos authentication.
>
>
> Enabling pipeline_prefetch introduces other problems as well. There 
> might be some very special use cases that benefit from 
> pipeline_prefetch today, but, in general, that directive should not be 
> used (and the whole feature should be removed from Squid until it is 
> properly implemented).
>
> I cannot currently answer your primary questions on this thread. I 
> hope somebody else will guide you through this triage.
>
> Alex.
>
>
>> On 15/05/2024 18:15, Jonathan Lee wrote:
>>> Have you researched enabling pipeline_prefetch??
>>>
>>>> On May 14, 2024, at 17:56, Andre Bolinhas 
>>>> <andre.bolinhas at articatech.com> wrote:
>>>>
>>>> Hi
>>>>
>>>> Sometimes my users complains that the internet navigation thought 
>>>> Squid is very slow.
>>>>
>>>> After checking the access.log, I can see a lot of ABORTED messages 
>>>> like this
>>>>
>>>> 1715537802.589      2 10.103.12.94 NONE_NONE_ABORTED/200 0 CONNECT 
>>>> api.telegram.org:443 - HIER_NONE/-:- - mac="00:00:00:00:00:00" 
>>>> accessrule:%20global_whitelist%0D%0A 
>>>> exterr="ERR_CLIENT_GONE|WITH_CLIENT"
>>>>
>>>> 1715537183.180  99993 172.16.31.205 TCP_MISS_ABORTED/000 0 POST 
>>>> http://pjcpd-dlpend01.hlbank.my/GECommunicationWS.asmx - 
>>>> HIER_NONE/-:- - mac="00:00:00:00:00:00" 
>>>> accessrule:%20global_whitelist%0D%0A 
>>>> exterr="ERR_CLIENT_GONE|WITH_CLIENT"
>>>>
>>>> I have imported the access.log into my ELK machine and I can see 
>>>> that during the time that the users complained about the slowness 
>>>> there is a huge spike of NONE_ABORTED messages.
>>>>
>>>> https://i.postimg.cc/6QR79GWk/6e727e86-de3d-4f3b-bd9e-04c04052ca2e.jpg
>>>>
>>>> Now my question is:
>>>> 1. What can cause this kind of issue? It's a squid server issue, 
>>>> network (firewall, switch, router, …), or client?
>>>> 2. Why the number of NONE_ABORTED requests is almost 4 time more 
>>>> than normal request?
>>>>
>>>> Best regards
>>>>
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>>>
>>
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