Re: p1: generating "internal" errors

Willy Tarreau <w@1wt.eu> Sat, 20 April 2013 07:04 UTC

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Date: Sat, 20 Apr 2013 09:03:54 +0200
From: Willy Tarreau <w@1wt.eu>
To: Mark Nottingham <mnot@mnot.net>
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Subject: Re: p1: generating "internal" errors
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On Sat, Apr 20, 2013 at 02:07:52PM +1000, Mark Nottingham wrote:
> p1 3.2.4 requires that a syntax violation in a received response be turned
> into a 502 (Bad Gateway) status code.
> 
> I'm not necessarily against it, but I think if we're going to take this
> approach to errors in received responses, it should be systematic, and we
> should recommend that others do it too. Currently, a lot of people are
> inventing new pseudo status codes to fill this role.
> 
> What do people think?

haproxy does exactly this right now (502) and I was not aware that people
invent their own code, this is pretty bad :-(

> This might not result in any changes in our specs beyond adjusting language
> in a few other places to do the same thing. I could see writing a separate
> spec for a header that described the type of error, though.

Good idea. Alternatively the reason code after the 502 could be modulated too.

Willy