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Re: multiplexing -- don't do it

From: Poul-Henning Kamp <phk@phk.freebsd.dk>
Date: Wed, 04 Apr 2012 07:02:18 +0000
To: Willy Tarreau <w@1wt.eu>
cc: "William Chan (?????????)" <willchan@chromium.org>, "Roy T. Fielding" <fielding@gbiv.com>, Mike Belshe <mike@belshe.com>, "ietf-http-wg@w3.org Group" <ietf-http-wg@w3.org>
Message-ID: <58913.1333522938@critter.freebsd.dk>
In message <20120404054903.GA13883@1wt.eu>, Willy Tarreau writes:

>> I'm starting to get data back, but not in a state that I'd reliably
>> release. That said, there are very clear indicators of intermediaries
>> causing problems, especially when the pipeline depth exceeds 3 requests.

I always thought that the problem in HTTP/1.x is that you can never
quite be sure if there is an un-warranted entity comming after at GET,
so people simply look to see if anything follows the CRNL CRNL and if
so, considers it an entity, even if it starts "GET /foo..."

If so, that is not a problem with pipelining, that is a problem with the
HTTP/1.X spec.

>Personally I'm still thinking that if we only pipeline on http/2 and not
>on http/1,


Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.
Received on Wednesday, 4 April 2012 07:02:50 UTC

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