[squid-users] 10 seconds delay squdclient delay

[Javier Barroso]

Hello,

On Fri, Dec 16, 2016 at 2:20 PM, Amos Jeffries <squid3 at treenet.co.nz> wrote:
> On 10/12/2016 12:55 a.m., Javier Barroso wrote:
>> Hello,
>>
>> We are having trouble with cachemgr performance. Do you know why
>> squidclient could delay 10 seconds on mgr:xxx queries ?
>>
>> I have looked about any timeout, or network error, or something, but I
>> did not find nothing
>
> The idea that comes to mind (for me) is that it may be a queue delay in
> the UDS kernel I/O subsystem if your Squid is processing much traffic
> shared between workers. The SMP coordinator process that arbitrates all
> that plus generates these reports may be heavily loaded with work.
>
> If it is a bug, whoever looks into it will likely need a ALL,9 cache.log
> trace to have a chance figuring out what the problem might be.
As it is a production environment I should try to replicate on another
environment, I am not sure if we can do it in a short space of time.

i think ALL,9 is not suitable for production. We are using squid
3.5.1, so the first step is to upgrade to the latest 3.5 release.

Thank you very much