Re: Squid returns a lot of ABORTED in access log and user navigation speed slows

Andre Bolinhas <andre.bolinhas@xxxxxxxxxxxxxx> · Wed, 15 May 2024 19:08:25 +0100



    Hi
    Thanks for your response
    I'm not using pipeline_prefetch, because pipeline_prefetch breaks
      the NTLM/Kerberos authentication.
    

    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@xxxxxxxxxxxxxx> 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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