rack

I went through few blogs and sites which gave me some information about how to log in sinatra but didnt work for my app and also i went through a gem called sinatra-logger didnt tried it, wanted to know ideal and simple way to "log" in sinatra. Like we do logger.info for rails. The code which i tried and didnt work is from the following site link and also some of SO links were too pointing to the same approach used in the link above. configure do LOGGER = Logger.new("sinatra.log") end helpers do def logger LOGGER end end i have written this in app.rb of my app, it fails saying undefined method

I have a sinatra application and packaged that as a gem . Its file-layout looks roughly like this: ├── bin │ └── tubemp ├── lib │ └── tubemp.rb ├── Gemfile └── tubemp.gemspec I can install and run it just fine. Calling ruby lib/tubemp.rb fires the app too, because Sinatra made it self-starting. tubemp.rb : class Tubemp < Sinatra::Application get '/' do erb :index, :locals => { :title => "YouTube embeds without third party trackers." } end end The binary is really simple too. bin/tubemp : #!/usr/bin/env ruby require "tubemp.rb" Tubemp.run! But now I want to deploy this as Rack-app. Or deploy it

i want to try out a simple rack middleware "hello world", but i seem to get stuck. it looks like the main sytax changed, since some examples use this code: require 'rack/utils' class FooBar def initialize(app) @app = app end def call(env) status, headers, body = @app.call(env) body.body << "\nHi from #{self.class}" [status, headers, body] end end produces an error: undefined method `<<' for #<ActionDispatch::Response:0x103f07c48> even when i look at other codes out there, i cannot seem to get them running with rails 3.0.3. here are my concrete questions: how can i get a simple rack middleware

1 The following is more to point out to the code devs an issue of rails that can be percieved as a flaw. 2 And also me asking some oppinions from people who know better. I want to add WebDAV to my Rails 3 App with Warden authentication. My warden middleware is injected via Devise. http://github.com/chrisroberts/dav4rack http://github.com/hassox/warden http://github.com/plataformatec/devise I cannot mount DAV4Rack handlers from inside rails app (routes), like this: # in config/routes.rb mount DAV4Rack::Handler.new( :root => Rails.root.to_s, # <= it's just an example :root_uri_path => '/webdav',

I'm looking for a robust way to deploy a Rack application (in this case a Sinatra app). Requests will take a little time (0.25-0.5 sec waiting on proxied HTTP requests) and there may be a decent amount of traffic. Should I go with a traditional mongrel cluster setup? Use HAProxy as a load balancer? nginx? rackup? What solutions have you used and what are the advantages? Nginx / Unicorn FTW! Nginx in front to serve static files and unicorn to handle Sinatra app. Benefits: Performance, good load balancing with unix socks and deploy/upgrade without any downtimes (you can upgrade Ruby/Nginx

After deploying our Rails app (4.0.9, Ruby 2.1.2), we notice requests to our app get hang after a while , usually 1 day or so. Using the gem rack_timer , we're able to find out requests got stuck at ActiveRecord::QueryCache middleware. Rack Timer (incoming) -- ActiveRecord::QueryCache: 925626.7731189728 ms After removing it, our app seems to be back to normal. However, I understand the purpose of this middleware is to increase the performance, so removing is just a temporary solution. We're using mysql (5.1.67) with adapter mysql2 (0.3.13) Update: Right after I posted this question, the server