[erlang-questions] Misultin EOL
Fri Feb 17 06:52:47 CET 2012
I have a small quibble (not trying to flame here), but isn't a comparison
between Yaws and Mutlisin a case of apples and oranges?
From a developer's perspective, Yaws is a webserver in the Apache+PHP
sense or IIS+.Net sense. Mutlisin (Mochiweb/Cowboy) are web server
libraries in the libmicrohttpd sense. Nitrogen, Erlang-web and Erlyweb are
web-frameworks in the Django/CakePHP sense. While webmachine is uniquely
on its own.
Yaws is about *serving* dynamic and static *content*? You'd consider using
Cowboy & Co' to develop "a yaws" if you were starting a yaws-like project
afresh in 2012. While you'd consider using yaws to develop a new
django-like framework for Erlang.
I'm yet to come across an Erlang web-server that is in the Yaws category
that has it's features and thoughtful design. I know of only Inets that's
also in this category.
So I always find it curious when Yaws is lumped into discussions where
it's strengths and focus don't fit at all.
Addressing some of your concerns:
Modularity - If you think of yaws as a web-application server that never
goes down and can run many applications, you'd find that it's very very
modular (appmonds/yapps). If it's modularity of the code-base itself that
your referring to, well, it doesn't look bad to me. I learned Erlang
largely by reading Yaws source code.
Usability - Development with yaws is the reverse of the popular web-libs.
You use yaws to "serve", cache, log and session manage one or more of your
web-apps (dynamic and static content) as opposed to using
Mutlisin/Mochiweb/Cowboy to write a web-app that serves, caches, and logs
itself and manages it's own sessions.
(In)activity - I personally haven't found many features that I've wanted
to be added to yaws itself, so it could be a case of feature saturation
rather than an under-developed legacy code-base. Most things that don't
exist, you can use from your app code without it being in yaws coz of the
way it's designed. For instance, I don't much like yaws' dynamic content
creation features (ehtml/ssi/yssi). Instead, I frequently use the ErlTL
template module from Erlyweb (without erlyweb).
That said, sometimes, for some projects, I find yaws overkill and reach
for one of the newer light webserver libs (usually when the app needs to
expose a simple web-API). But for most web projects with lots of content
(and where development time is scarce), I find using those libs would have
me duplicating a lot of the great work already done in yaws, so I reach
for yaws instead.
- Edmond -
On Fri, 17 Feb 2012 10:06:44 +1100, Michael Truog <>
> On 02/16/2012 01:17 PM, Steve Vinoski wrote:
>> On Thu, Feb 16, 2012 at 3:50 PM, Michael Truog <>
>>> Is cowboy going to be able to take the lead on HTTP Erlang web server
>>> performance where mochiweb and yaws have been unable to (please don't
>>> bother to flame this, those people that don't care about performance,
>>> but care about Erlang)?
>> I'm not interested in flames either, but I am interested in facts.
>> Please back up your assertion by posting your meaningful benchmarks
>> that prove that Yaws is lacking in performance.
> It is unfair to say that yaws does not perform like misultin and I do
> not have data to make that statement. When I think of performance, I am
> also thinking of software development performance for modifying,
> extending, and using the code-base. Yaws has lacked support once
> mochiweb was available because of some fragmentation within the
> community. From what I have seen, yaws chooses not to focus on
> performance, and has never intended to do so in the past, so it is
> unclear whether it would be able to maintain its performance in the
> future, if it received more support (based on
> So, that was misleading for me to say, since you are probably correct
> that misultin is on par with yaws, though there are no public results to
> show that. With yaws the concern seems to be more about the code being
> regarded as legacy, not actively developed, and not modular (and
> whatever other reasons that seemed to make mochiweb
> appear necessary). I say this knowing that you are currently the main
> maintainer of the code-base. These are just the impressions I have had
> from being within the Erlang community for a few years.
> - Michael
> erlang-questions mailing list
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
More information about the erlang-questions