Re: [squid-users] Serious problem with read_timeout

On 11/04/2012 14:49, Amos Jeffries wrote:
> On 11/04/2012 6:47 p.m., Jean-Philippe Menil wrote:
>> Le 05/04/2012 16:50, Jean-Philippe Menil a écrit :
>>> Le 04/04/2012 09:00, Jean-Philippe Menil a écrit :
>>>> On 03/04/2012 23:53, Amos Jeffries wrote:
>>>>> On 04.04.2012 02:46, Jean-Philippe Menil wrote:
>>>>>> Le 03/04/2012 11:06, Jean-Philippe Menil a écrit :
>>>>>>> Hi,
>>>>>>>
>>>>>>> i encounter serious outage with squid 3.HEAD-20120307-r12077.
>>>>>>> Every time i download some test files, it stop after 15 minutes.
>>>>>>> If i go down read_timeout to 1 minutes, the download stop after 1
>>>>>>> minutes.
>>>>>>>
>>>>>>> Is it a know issue, or must i increment read_timeout to excessively
>>>>>>> timeout?
>>>>>>>
>>>>>>> special configuration is as follow:
>>>>>>>
>>>>>>> workers 4
>>>>>>> cpu_affinity_map process_numbers=1,2,3,4 cores=6,7,8,9
>>>>>>>
>>>>>>> Regards.
>>>>>>>
>>>>>> Nobody have ever observe this phenomen?
>>>>>
>>>>> Not many production networks (squid-users people) use 3.HEAD
>>>>> (alpha) code.
>>>>> The developers and alpha/beta testers hang out in squid-dev ;)
>>>>>
>>>>> And no, you are the first to mention this particular behaviour.
>>>>>
>>>>> Amos
>>>>>
>>>> Hi,
>>>>
>>>> yes iknow, but i think it is present in 3.2 too (i will test this
>>>> afternoon to confirm).
>>>> I think i can repeat that only when download a file to on a https
>>>> site, does it help?
>>>>
>>>> Regards.
>>>>
>>> Hi,
>>>
>>> so i have done test with a squid 3.2.0.14.
>>> And it appear that i can repeat the problem only with https site, why
>>> i don't know yet.
>>>
>>> For test, i fixe a lower value (don't want to wait 15 minutes between
>>> each test) for read_timeout,
>>> and i download an iso file through some https site:
>>> https://nzdis.org/projects/projects/perfnet/repository/revisions/4/raw/vendor/Vyatta/Vyatta/vyatta-livecd-vc5.0.2.iso
>>>
>>>
>>> Every time, the download stop at the read_timeout value.
>>>
>>> Any ideas?
>>>
>>> Regards.
>>>
>>>
>>
>> Hi,
>>
>> sorry to up this subject, but i can't understand why the
>> read_timeout isn't zeroed with https communication.
>> Do i miss something?
>

> Read timeout should be reset to full on every packet read. It is never
> zeroed during a transfer.
>
My fault, bad semantic language, i mean reset, effectively.

> It sounds like the transfer is stalling for more than read timeout, or
> the timeout is not being reset like it should be.
>
Do you know, how i can troubleshoot this issue?

> Amos

Many thanks.
Regards

-- 
Jean-Philippe Menil - Pôle réseau Service IRTS
DSI Université de Nantes
jean-philippe.menil_at_univ-nantes.fr
Tel : 02.53.48.49.27 - Fax : 02.53.48.49.09