Bret Taylor's blog - Latest Comments in The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Suezanne — Sun, 11 Jul 2010 16:06:38 -0000

I came to this page because I think a Friendfeed style "chat system" would be a good communication system for Linden Lab to provide for Second Life users, much better than the Avatars United site that Linden Lab bought.

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Ken — Wed, 28 Oct 2009 13:54:41 -0000

This code shown above ...

class LoginHandler(tornado.web.RequestHandler):
def post(self):
# Process login username and password
self.set_secure_cookie("user_id", user["id"])
self.redirect("/home")
throws the following exception ...
Exception: Cannot redirect after headers have been written

Am I missing something ?

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

stanley — Wed, 30 Sep 2009 15:19:42 -0000

Running said demo gives 500 error.

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

jwieland — Mon, 28 Sep 2009 19:49:46 -0000

Demo server busted? http://chan.friendfeed.com:8888/

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

mager — Fri, 25 Sep 2009 15:46:55 -0000

<3 it

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

elenamorgan — Thu, 17 Sep 2009 07:07:00 -0000

Selecting a suitable development environment depends a lot on the nature of the site and the project requirements. One needs to carefully thing about the technologies to be deployed as you are likely to live with it for a long time.

So I would like to recommend one of my client who provides solutions in both PHP and .Net technologies.

http://www.redalkemi.com

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Eiso Kant — Wed, 16 Sep 2009 11:37:03 -0000

I wanted to thank you guys. I am going to be building a web app for which I was dreading to use PHP long-polling. I looked at Twisted.web and other Java alternatives but they all seemed too complicated to use (I know PHP and Ruby, not Java or Python).

After exploring Tornado and trying it out, I am growing incredibly fond of it, especially it's ease of use (and Python is not looking to difficult from here, lots of similarities to Ruby).

Thank you!

Eiso

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Satya Prakash — Wed, 16 Sep 2009 10:06:01 -0000

Everywhere open source and open web. What Microsoft will do?
If MS where the biggest search engine then he may have charge us for searching or shown a popup ads in between .

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Roger Lancefield — Wed, 16 Sep 2009 05:46:56 -0000

Very interesting Bret, and kudos to you and your team for opening up this code.

When you say CherryPy was running "standalone" do you mean it was tested running its built-in web server? I'm not being defensive, critical or sceptical, merely interested :)

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Ceyhun — Tue, 15 Sep 2009 15:37:27 -0000

I will try to use this as soon as possiable. It looks great.

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

mckoss — Tue, 15 Sep 2009 15:28:51 -0000

It might be nice to port some of the authentication bits to appengine/webapp or appengine/django.

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

John Wright — Tue, 15 Sep 2009 14:56:32 -0000

Cool, can't wait to check this out!

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

gpshead — Sun, 13 Sep 2009 11:46:25 -0000

Stop being such twisted fanboys people, be thankful for the newly released code and project. Working with an existing project is academically admirable but quite often not practical. If that were all anyone ever did, nothing new and improved would ever be created. Competition is good.

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Ajoyshop — Sun, 13 Sep 2009 09:03:40 -0000

I have to agree with Dave. It should plugin nicely.

http://www.bagoscomp.com

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Arek — Sat, 12 Sep 2009 22:00:28 -0000

I'm saying it with utmost respect : what ?

I really like this project, but Django and this aren't really comparable and suit totally different projects. Are you using Django for something overly simple that wouldn't require most of it's functionality and are getting stuck on something ?

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Bill — Sat, 12 Sep 2009 18:27:24 -0000

NGINX: Also great for linux botnets: http://linux.slashdot.org/s...

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

terrycojones — Sat, 12 Sep 2009 17:37:33 -0000

I blogged a bunch of comments over at http://blogs.fluidinfo.com/...

I don't get it. The more I think about it, the more I dislike it. What a colossal wasted opportunity. It would have been so much less effort to have thrown your weight behind using Twisted core and helping twisted.web, and you would have ended up with a better result to boot. It's a bit late to be all community friendly. I don't blame you for doing things your own way, it's just the scale of the missed chance that really gets to me. Why didn't you bother to show up in the Twisted community, ask a few questions, ask for help, suggest some directions, air your grievances with Twisted.web etc? I did all that, and the reaction from the Twisted folk was always superb. No, you had to go off and try to re-invent the whole friggin thing. Jeez.

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

dustin — Sat, 12 Sep 2009 14:37:22 -0000

I've used the twisted enterprise stuff in some apps for non-blocking RDBMS action. twitterspy supports both the twisted async interface to sqlite and a couchdb interface (I use the latter). twitterspy as I run it == async couchdb + async memcached + async http streaming + async xmpp interface (and a bit more).

I also saw that someone filed an issue against tornado about running async system commands and displaying their output. If you go about three minutes into this video: http://www.vimeo.com/5998733 you'll see Matt Ingenthron demonstrating a twisted-based web server I wrote that runs system commands and streams replicates of the output (processed through a python filter) to whomever happens to be looking.

This is why Tornado is both interesting and mildly frustrating. I've got a handful of little frameworks like the above that are doing useful realtime web stuff that could all use an easy to use web framework that doesn't block. Hopefully by porting tornado to twisted, I can get some more web attention directed at these projects.

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Bret Taylor — Sat, 12 Sep 2009 12:07:10 -0000

The asynchronous features are not available in Google AppEngine, but a subset of Tornado's features do work in AppEngine. See http://www.tornadoweb.org/d... and the included "appengine" example for a full-featured App Engine example app.

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

rvijapurapu — Sat, 12 Sep 2009 10:46:55 -0000

Do you think we will be able to use this on Google Appengine?

If so do you think we will be able to maintain the connections? http://groups.google.com/gr...

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

brianjesse — Sat, 12 Sep 2009 06:18:37 -0000

dustin, wow. I see that twisted has a "non-blocking interface to the standardized DB-API 2.0 API" http://twistedmatrix.com/pr... -- is that a good way to back tornado with a rdbms?

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

dustin — Sat, 12 Sep 2009 01:42:41 -0000

I've done a first pass implementation of tornado's web framework on top of twisted:

http://github.com/dustin/to...

10 files changed, 92 insertions(+), 1389 deletions(-)

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

Mark Essel — Fri, 11 Sep 2009 13:29:09 -0000

I have much to glean from these wonderful open source shares. Thanks again Bret and the super team formally known as friendfeed :D

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

darkimmortal — Fri, 11 Sep 2009 12:18:49 -0000

Nginx wins yet again.

Re: The technology behind Tornado, FriendFeed's web server - Bret Taylor's blog

roder — Fri, 11 Sep 2009 11:49:16 -0000

I posted a performance test of Tornado and Twisted.web here:

http://www.apparatusproject...