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The Trello Tech Stack

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Re: The Trello Tech Stack

#21

Post by [deleted] »

feralmoan wrote: post #14
karterk wrote: post #11

I have read about various issues in using HAProxy and socket-io (websockets mode). I am currently working on a project that's heading towards that direction - anyone has anything to share on that front?

nginx supports http1.1 reverse proxying as of a few weeks ago http://wiki.nginx.org/HttpProxyModule Mikito Takada (Zendesk) has some really helpful information regarding socket.io + haproxy specific workarounds via http://blog.mixu.net/2011/08/13/nginx-websockets-ssl-and-soc...

[deleted]

Re: The Trello Tech Stack

#22

Post by karterk »

feralmoan wrote: post #14
karterk wrote: post #11

I have read about various issues in using HAProxy and socket-io (websockets mode). I am currently working on a project that's heading towards that direction - anyone has anything to share on that front?

nginx supports http1.1 reverse proxying as of a few weeks ago http://wiki.nginx.org/HttpProxyModule Mikito Takada (Zendesk) has some really helpful information regarding socket.io + haproxy specific workarounds via http://blog.mixu.net/2011/08/13/nginx-websockets-ssl-and-soc...

Thanks. Looks like it's available only on the development version - I wonder if it's production ready...

Also - I took a look at the article - it does not mention using a total node approach of using something like node-http-proxy for load balancing. Any idea on such a set-up? I need HTTPS as well.

Re: The Trello Tech Stack

#23

Post by yesbabyyes »

swah wrote: post #17

It seems Socket.io has not had any contenders yet..

Socket.io is a great library. When it comes to a contender, I see Server-side Events [1] as a contender to WebSockets. I feel it's a simpler architecture which fits HTTP/REST better than WebSockets in the general case. I built a couple of small experiments/examples using CoffeeScript and Redis [2]; the middleware.coffee in particular is designed to be used together with REST, where if you send "Accept: text/event-stream" you will get updates to the resource(s) on that URL.

1: http://dev.w3.org/html5/eventsource/ 2: https://gist.github.com/1560654

Re: The Trello Tech Stack

#24

Post by djb_hackernews »

jurre wrote: post #15
djb_hackernews wrote: post #13

Great write up. Hopefully that ephemeral data in Redis can scale. They could have used something like Pusher for about half of their implementation (the websockets, message pushing, polling, etc) I bring this up because I built an OSS Pusher clone[1], for those people that want to deploy their own, built on the Play! framework. [1] https://github.com/danbeaulieu/PushPlay

There's also this ruby implementation that plays nice with all the pusher libs https://github.com/stevegraham/slanger

Yes, I built my version almost in tandem with Steve. Pusher hosts their js lib on github under the MIT license which made building these things supremely easy.

Re: The Trello Tech Stack

#25

Post by jroseattle »

Love the stack, already working on something similar (mine involves nginx, though.) Given we haven't deployed, it's refreshing to see a similar diagram from those already out in front.

Re: The Trello Tech Stack

#26

Post by jwarzech »

geekfactor wrote: post #10

Does anyone know of any open-source projects out there using a similar stack? I'm particularly interested in learning more about client-side view rendering with Backbone and Mustache... server side can be any of Node, Rails or Django.

I've been using CoffeScript and backbone.js a lot lately, it really has changed my approach to web apps (keep the server light, just transfer json back and forth). The approach that has worked the best for me is to keep pages such as the landing and authentication as traditional rendered pages and save the client side rendering for the user-authenticated 'meaty' parts of the app.

If you want to look a couple really-small examples I have a couple apps on github I used for learning backbone.js/coffeescript. They both use the underscore.js template engine.

https://github.com/jwarzech/realtime_hn Backend is sinatra, takes a HN story url and polls the comments in reverse chronological order.

https://github.com/jwarzech/inspire_board Backend is rails, polls images from dribbble and lets you save your favorites.

Re: The Trello Tech Stack

#28

Post by dodger »

eaurouge wrote: post #20

If you could do this over again, would you still choose socket.io for websockets, or would you go with something else like PusherApp?

Today I'd consider going with a service, but first I'd see how https://github.com/LearnBoost/websocket.io looks. Most of our problems have been with abstractions in the socket.io client and scaling issues with server process chatter. The chatter shouldn't be necessary with websockets-only.

Re: The Trello Tech Stack

#29

Post by radagaisus »

Just had to share this:

Our stack is Redis, MongoDB, Nginx, SCSS, HAML, Coffee, Rails and NodeJS. I'm extremely happy with these choices.

Recently me and a friend did a small weekend project: www.bubblefap.com (nsfw) The design and code is a homage to ugliness. We only used PHP-ActiveRecord and that's it. and I had so much fun!

I just hacked away! I was cowboy coding, hacking away, and I didn't need to think about frameworks and architecture and integration with fog and hacking Rack to support flash uploads. Oh, good times :-)

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