Re: [squid-users] Timeout problem in 3.2.3

On Thu, Dec 13, 2012 at 11:26 AM, csn233 <csn233_at_gmail.com> wrote:
>
> On Thu, Dec 13, 2012 at 10:01 AM, Amos Jeffries <squid3_at_treenet.co.nz> wrote:
>> On 13.12.2012 14:45, csn233 wrote:
>>>
>>> I'm testing Squid 3.2.3 and seem to be encountering some sort of
>>> "timeout" problem on browsers. When left idle for long periods
>>> (hours), Firefox and IE9 seem to "lose" the connection, and can only
>>> be resolved by restarting the browser.
>>>
>>> The squid.conf is more or less the standard copy from the
>>> installation, and I have not added anything that looks like a
>>> "timeout" parameter. I've never seen this in previous versions I've
>>> used, 2.6 and 3.1.
>>>
>>> What might it be?
>>
>>
>> * it might be browser loosing a connection object internally
>> * it might be HTTP/1.1 handling issues in either browser or Squid
>> * it might be TCP timeouts in the network stack of any device between
>> browser and Squid
>> * it might be NAT timeouts in any device between browser and Squid
>> * it might be ARP table timeouts on any device between browser and Squid
>>
>> All of these are possibilities in 3.2 where HTTP/1.1 is use between Browser
>> and Squid. But not in the older versions where HTTP/1.0 is used. As
>> side-effects of HTTP 1.1 vs 1.0 keep-alive behaviour.
>>
>> Amos
>>
> Thanks for replying.
>
> Since I'm testing on the same network/systems where I also have other
> Squid versions running (plus numerous other applications), it is
> probably reasonable to rule out TCP/NAT/ARP, since the problem is not
> seen elsewhere.
>
> If we narrow it down to the first 2 items (connection object or
> HTTP/1.1), what options are available to prevent the "timeout"?
>

Unless your other Squid versions are 3.2, they are not using
persistent connections, that means you can't rule out TCP or NAT
timeouts.

If I were you I would check this by writing a script that opens a
persistent HTTP/1.1 connection to some host on the Internet and see
what happens.

Alan

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Received on Thu Dec 13 2012 - 07:02:22 MST