Ruby on Rails is an open-source, MVC web development framework written in Ruby, optimized for programmer happiness and maintaining sustainable productivity. Many things are defined by convention, freeing you from having to re-invent things to stay productive.

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581 views

mysql.sock error when deploying with AWS Ubuntu and RDS

Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) Rails.root: /opt/deployment.myproject/releases/20140805050704 I've spent the better part of 3 days trying to ...
2
votes
1answer
2k views

How to tell how Apache might be broken and preventing the ruby passenger module from installing

I'm installing a ruby on rails application to a Ubuntu 14.04 server. As part of it, I need to install the passenger module for Apache. When I go to run the "passenger-install-apache2-module" I receive ...
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0answers
60 views

Splitting an application across AWS and Heroku

My application is currently 100% managed by Heroku. A few endpoints on the application depend on very slow external resources. Heroku occasionally kills these requests if they hit 30 seconds.[1] ...
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1answer
185 views

404 not found error on Rails app with Helicon Zoo on Windows Server

I'm trying to run Rails App with Helicon Zoo on Windows Server 2008 R2. For the test case I used Redmine 2.3 that goes with the Helicon Zoo module. Redmine has been installed successful, but it is ...
2
votes
1answer
1k views

File descriptor limit in nginx/Passenger app

We're running a Rails app in Passenger 4.0.45 and nginx 1.6.0 (installed by Passenger installer) running on Ubuntu 14.04. Under heavy load Passenger restarts all of the application processes. After ...
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2answers
1k views

Auto start Rails project upon boot (ubuntu)

I've been searching on this for 2 days. I tried three ways: 1.Add some file in init.d Ok I have to admit I dun know how to see error log , seems promising but doesn't work 2.Try start thin server ...
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0answers
203 views

How To Get My Rails Phusion Apache App To Use The Correct DocumentRoot

enter code hereOk this is obviously a rookie mistake of some description but I have followed this to the letter and cannot get my rails app public directory to be my document root. the tutorial says ...
4
votes
1answer
852 views

Pre-populate vagrant synced folder contents

I'm currently building an rather complicated server stack (a ruby on rails app) that I want developers to be able to work on without having to install everything themselves. Therefore I use Vagrant to ...
0
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1answer
446 views

Why is /usr/bin/env permission denied to rails server?

I've just set up rails on an apache server running on Ubuntu, and when I try to go to the root page it gives this error: An error occurred while starting up the preloader. It exited before signalling ...
0
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2answers
101 views

Skip passenger instance stop on apache2 reload

When apache reloads cofig files all instances of passenger are stopped and must be spawned again, it creates a problem, because spawn of rails application isn't fast process. Is there any workaround ...
0
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0answers
441 views

Horizontal Versus Verticale Scaling for Large Scale RoR Application (High CPU and Memory Usage)

We are launching a high demand (several hundred simultaneous users) Ruby on Rails application and we are trying to determine the best way to scale. Currently, we have a setup that follows this ...
1
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1answer
685 views

All Passenger processes suddenly hang - backtrace indicates reading POST data?

I've been having problems with my nginx/Passenger server where requests appear to be getting stuck, any subsequent requests don't complete, the queue gets up to its max, and the site starts serving ...
0
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1answer
134 views

Restart individual rails apps in nginx+unicorn

I have 15-20 independent rails applications on the same ec2 instance. The rails applications are deployed using apache + passenger with Railsbaseuri. RailsBaseURI /games <Directory /home/ubuntu/...
0
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1answer
55 views

Should Rails apps be run by a system user or a regular user?

In a production environment on Ubuntu (12.04), should a Rails app be run by a system or a regular user? I'm creating a dedicated user to running the a rails app and I'm not sure whether to create a ...
2
votes
1answer
3k views

Instances slow when connected to AWS load balancer

I have setup 5 t1.micro EC2's behind an AWS load balancer. All the instances slow down once they are connected to the LB. Eight out of 10 requests takes more than 30s even when I do the requests ...
4
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0answers
253 views

Rails 4 Unicorn+Nginx on Ubuntu 13.04 VPS keeps crashing

I bought a years subscription at bluevm.com (found some coupon code, it was only about $15 for a whole year) to launch my first Rails Production server. I'm running Nginx with Unicorn and MySQL on ...
2
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0answers
286 views

Why isn't puma using all of its threads?

I'm using puma and nxinx, and as far as I can tell it is only ever using a single thread even when I start it with the default of 16 threads or more. I've set up a fresh rails app, then gone through ...
0
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1answer
126 views

What are the advantages of using dedicated server software over framework built-in servers?

Being a beginner in the web world, I've always used Apache to develop applications in PHP. Getting tired of it, I learned Node.js, Rails and Django -- just to get a taste of each of the most used web ...
2
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1answer
1k views

Rails app 502 with AWS Elastic Beanstalk running Puma & Nginx

I've been able to successfully get my application running on Beanstalk with Passenger, however I've had no luck with Puma. Whenever I deploy with to a Puma stack I get 502 Errors, my log files ...
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0answers
42 views

Redhat quitting process never works always have to kill it

I am working on a RedHat server creating a unicorn process. I have two sets of these processes being created. I am able to QUIT one of the process fine and do so over and over again create it and QUIT ...
3
votes
1answer
647 views

Rails when served by unicorn is generating the wrong fingerprint for precompiled assets

I have a production server with nginx -> unicorn -> rails. I precompile assets, which puts assets in public/assets with a fingerprint (hash) appended to the filename. However, when a web page is ...
2
votes
1answer
424 views

Passenger Module Fails On AWS Gem With 'Class Variable Name' Error

Opening Disclaimer: I'm all kinds of newb to the technologies involved in this question. But the Googles, she no yield-a the fruit. I'm trying to deploy a Rails app into production. This app works ...
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0answers
207 views

Application that works on webrick but fails in passenger

I have a ruby on rails application that starts successfully when I execute rails s -p 3000. But when I deploy it on apache or nginx using passenger, I get this result. The deployment instructions ...
0
votes
1answer
1k views

Why is rails application always running in development mode?

I created rails application, and everything appears to be working fine, but I can't seem to figure out how to run the application in production mode. I specified in the example.com.conf (Apache ...
3
votes
1answer
818 views

Nginx, setup https

I'm trying to setup https on my ubuntu server with NGINX ver 1.4.7 and Phusion Passenger 4.0.41. I created .key and .csr using these two commands sudo openssl genrsa -des3 -out server.key 2048 sudo ...
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0answers
677 views

NginX configuration to prevent “Slow HTTP Denial of Service”

I'm trying to configure NginX (in combination with Passenger and Rails) to prevent "Slow HTTP Denial of Service". What I'm trying to do to prevent it, is limiting the amount of requests per ...
1
vote
2answers
7k views

“768 worker_connections are not enough” error after a fresh installation of nginx and ROR

I have a fresh installation of nginx and ruby on rails. But it gives me a '500 Internal Server Error' while testing. The error.log for my app has the following: 2014/05/01 17:27:15 [alert] 1423#0: *...
0
votes
1answer
600 views

Trouble setting up Ruby with Nginx on CentOS 6.5

Following the instructions here: https://www.digitalocean.com/community/articles/how-to-deploy-rails-apps-using-passenger-with-nginx-on-centos-6-5 I get to the point of "Use vim /etc/init.d/nginx to ...
0
votes
1answer
642 views

Unable to load urls in iframe on using ajax call

My application is deployed under haproxy server with domain name say fireapp.com, server1 and server2 are two servers below. Haproxy is configured to handle all requests under /live/ url format from ...
0
votes
2answers
382 views

How to debug Repository.fetch_changesets runned from ./script/rails runner

For some time I have been updating changesets manually on server with following command's: $ cd /custom/www-data/ $ source /custom/www-data/.rvm/scripts/rvm $ ./script/rails runner "Repository....
5
votes
2answers
2k views

Restore a versioned S3 bucket to a particular point in time

Let's say I've got S3 versioning enabled for my bucket: http://docs.aws.amazon.com/AmazonS3/latest/dev/Versioning.html Then, let's say someone (for example, junior employee) messes up the S3 bucket (...
1
vote
1answer
138 views

NGINX: Route a call to localhost on a custom port to an external server

I have a problem with my rails app. An API of the app is looking for my forum (forum.example.com) on localhost on port 8082. I need to create a route that redirect every connection to 127.0.0.1:8082 ...
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vote
0answers
257 views

Can't deploy Ruby 2, Rails 4 app to Linode

I have a Rails 4 app and I want to deploy it to my Linode and I'm struggling a lot to get this working. I followed all the basic instructions from the Linode guides, also, installed all the ...
1
vote
0answers
255 views

Why does Ruby on Rails run slowly on VMWare

We are experiencing slow performance of our Ruby on Rails application on a hosted server. Neither us nor our hosting provider have been able to accurately diagnose the reason for this. Indicators of ...
0
votes
1answer
997 views

how to make webrick server accessible on the web on windows server 2008

This is a nuub question (i'm more of a programmer given an admin task right now). I have a rails application that works just fine on a remote windows server 2008 machine (it's rails 2.3.5, and I run ...
5
votes
2answers
1k views

Creating a docker container from a capistrano deploy

I'm having a bit of a difficult time understanding how I can leverage my existing infrastructure code with Docker. I have a Ruby on Rails app that uses capistrano to push out deployments. I want to ...
0
votes
1answer
445 views

Rails 4 app + nginx1.4.4 + passenger4.0.37 on a headless Ubuntu12.x server running on a VM on my local machine

At the moment, it gives me a disapointing blank page. No 500, no 404, no errors on the nginx log file, just a snowstorm of interrogations. And its been hours of googling without success. So if anyone ...
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votes
2answers
43 views

Nginx: Changing user [closed]

I have root and deployer users in my ubuntu 13.10. I also have nginx, unicorn installed with Rails 4 application. I'm deploying my application using capistrano 3. Problem: When I prepare a env for ...
0
votes
1answer
1k views

Blocking/redirecting port 3000 with Nginx and Ruby On Rails (thin server)

I am setting up a server now that uses Ruby on Rails with the Thin server. I have set up Nginx to redirect all of my http://mysite.com to https://mysite.com(with ssl). I want all network traffic to ...
3
votes
1answer
268 views

What does this log mean?

While my application is running (with a lot of traffic), I see this in error log but I dont even understand what it is about. I guess it's optimizing some configuration but I need a more formal ...
0
votes
0answers
123 views

install redmine in shared apache server

I'm trying to install Redmine in a shared apache server. This means, I cant make the redmine/public folder my document root. My server is called server1, so I have some html and php pages at: http://...
1
vote
0answers
361 views

Nginx Returning 504 Error

I'm getting a 504 error from Nginx on my Ubuntu server where I'm running Rails using Unicorn. When I look in the Nginx error.log.1, I see: 2014/01/21 18:06:02 [error] 698#0: *2 connect() failed (111:...
2
votes
1answer
548 views

Redmine won't start after move

I met trouble with redmine(or ruby configuration) when move from one server to another redmine@dirty:~/www$ ruby script/rails server webrick -e production /usr/local/rvm/gems/ruby-2.0.0-p353/gems/...
2
votes
1answer
217 views

Website offline message when server is unreachable

Is there a way to display a website offline/maintenance message to users who try and visit a website where the physical server is offline. The scenario: We have multiple client websites running at ...
1
vote
2answers
74 views

Why server writes much more than reading the disk

I'm running one Ruby on Rails application, I use Passenger Nginx, Ruby on Rails 3.2, search gem Sunspot (which uses Solr as its search engine). My application works ok with around 6K active users but ...
0
votes
1answer
2k views

When does Linux run out of memory? [duplicate]

I'm trying to establish why a process keeps unexpectedly stopping, and one possibility is that the server is running out of memory, but I'm not sure I understand memory and Linux properly. Take the ...
1
vote
0answers
544 views

How to setup cross domain rules in discourse?

So i use the following page to gather information from the user and send it to forums.awake-gaming.com/posts for discourse to make a post for me . Url of page : awake-gaming.com/join-us.html Url, ...
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vote
0answers
383 views

Rails app (Redmine) on Phusion Passenger is very slow on first request

I've recently deployed a Redmine app (production env) on an AWS server and every time I go to the page after a delay (10+ minues), it take a painfully long time for the page to load. After googling ...
0
votes
1answer
952 views

execjs error when running Ruby on Rails for the first time - “bundle install” and “rake about” show no issues as far as I see

I have recently installed Ruby on Rails on my Centos server as practice for installing in a production environment. In my Gemfile I have the following uncommented lines: source 'https://rubygems.org' ...
2
votes
2answers
2k views

Explain load-balancing with Nginx like I'm five

I've found plenty of DIY posts and tutorials on how to configure Nginx as a load-balancer using upstream server: upstream backend { ip_hash; server 1.2.3.4; server 1.2.3.5; server 1.2.3.6; } ...