[squid-users] 10 seconds delay squdclient delay

Amos Jeffries squid3 at treenet.co.nz
Fri Dec 16 13:20:59 UTC 2016

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.


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