Re: [squid-users] HTTP/1.0 417 Expectation failed

>No. When the _reply_ starts with "100 Continue" the remainder of the POST
>may be discarded.

Reply ?! You are saying about answer which receives Squid from http server ?
so Squid than blocks the expect replays ? Right ?

----- Original Message -----
From: "Amos Jeffries" <squid3_at_treenet.co.nz>
To: <squid-users_at_squid-cache.org>
Sent: Saturday, February 20, 2010 11:09 AM
Subject: Re: [squid-users] HTTP/1.0 417 Expectation failed

> Riccardo Castellani wrote:
>>> When receiving 417 it should be re-trying the POST without the expect
>>> header, or the delays Expect adds to the system.
>>
>> a- What means "or the delays Expect adds to the system" ? To wait answer
>> to Expect request ?!
>>
>
> Yes. There is a long (unknown length) delay waiting for the 1xx response
> before the second half of the POST is sent. When there is no 1xx response
> existing the delay may be very long.
> The 417 shortens that by saying explicitly there will be no 100 happening.
>
> I assume of course that the agent doing the POST can handle the 1xx
> response wait properly. It seems not to be capable of the closely related
> 417 part of the requirements.
>
>>
>>> Squid other than 2.7 will not produce this error. They will just die in
>>> unexpected ways if the 100-continue your software asked for actually
>>> comes back.
>>
>> b- You are saying Squid process (a version different from 2.7) will die
>> if it receives a request which contains "Exepct: 100-continue" ?
>
> No. When the _reply_ starts with "100 Continue" the remainder of the POST
> may be discarded.
>
>> c- But the 417 error is given from Squid or from remote Http server ? I
>> suppose, in this case, the error is given from Squid 2.7
>>
>
> Doesn't matter. It can be produced by anything along the route.
>
> Squid-2.7 sends it because 2.7 is smart enough to know that _it_ can't
> handle the 100 reply and what the reponse is supposed to be when that
> ability is missing from any part of the relay.
>
> Amos
> --
> Please be using
> Current Stable Squid 2.7.STABLE8 or 3.0.STABLE24
> Current Beta Squid 3.1.0.16
Received on Sat Feb 20 2010 - 10:30:38 MST