Unicorn is an HTTP server for Rack applications designed to only serve fast clients on low-latency, high-bandwidth connections and take advantage of features in Unix/Unix-like kernels. http://unicorn.bogomips.org/

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109 views

Request timeout issue with nginx, unicorn and rails

I have an application in rails and it runs unicorn in production. There are some requests that take too long to process. I have configured the server to increase the timeout, so these request work ...
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2answers
71 views

SSL/HTTPS issue (no padlock icon) on Safari when using ngixn+unicorn

I have an application that runs on nginx+unicorn. This is how my server block looks like upstream rtdev{ # fail_timeout=0 means we always retry an upstream even if it failed # to return a good HTTP ...
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2answers
84 views

nginx load balancing images not loading

Below is my load balancing configuration.my other servers contain nginx unicorn based application setup. When i tried above configuration the images are not loading. I have total three servers 1 ...
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1answer
159 views

Nginx: redirect http to https

I know the question has been asked countless times. Still cant get mine to work with the answers i've seen so far. I'm trying to force redirect http to https with nginx. When i visit ...
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1answer
64 views

Trouble getting Unicorn to talk to Nginx

I've seen all of the other questions on here but none of them seem to work for me. Whenever I try and access my site I'm getting a connection refused error through the nginx logs. I'm assuming there ...
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0answers
70 views

Serving static files with NGINX on Unicorn served app

I've just set up a Sinatra app running on Unicorn and served through a socket by NGINX. I'm trying to get NGINX to serve my static assets with this in my nginx config: * EDIT * (added full server ...
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1answer
94 views

Rails - Nginx not caching images

I've got a VPS where I'm running my Rails app using Nginx and Unicorn. I was successful to add expires headers to JS and CSS files, however I cannot force Nginx to cache images as well (according to ...
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1answer
487 views

nginx Permission denied error

I'm runnning nginx and unicorn to serve Rails application. Unicorn and Rails app works fine, but nginx can't open rails public directory with permission error and return 502 Bad Gateway. curl ...
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1answer
275 views

GitLab Unicorn Service crashes all the time, 502 Error

I used the Installer of Gitlab CE and so far everything looks well. Then when finished the installation I always got 502 Error on my website, since then I did a little research, then I saw that my ...
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0answers
37 views

unicorn capistrano not starting

Hi I am deploying my rails application in VPS and I have followed https://coderwall.com/p/yz8cha this blog and the problem is nginx show only 500 error page , I doubt of that my unicorn is not starts ...
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0answers
278 views

Rails application deployment, nginx, unicorn, capistrano socket error

I am deploying a rails application to a digital ocean VPS. I have followed https://coderwall.com/p/yz8cha . All things done well, but now the browser shows only a blank page. Nginx log contains: ...
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2answers
138 views

rails app (via apache proxy) images from uploads directory missing

I am running Gitlab reverse-proxied through an Apache 2.2 server for my work group. Recently, we wanted to upload some group logos to use as project Avatars. The uploads all completed successfully ...
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1answer
86 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 ...
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1answer
253 views

Nginx + unicorn + spdy + performance testing

I have a ruby on rails website that is hosted on unicorn webserver behind a nginx reverse proxy. I want to evaluate if using spdy will enhance my performance under this setup. Specifically, I need ...
0
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1answer
553 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 ...
3
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0answers
162 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 ...
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0answers
35 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 ...
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0answers
359 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 ...
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2answers
249 views

Take HAProxy backend nginx server out of rotation if it can't connect to Unicorn

I have a load balancer running HAProxy with two backend servers both running Nginx on to Unicorn. If nginx goes down on one of these boxes HAProxy takes it out of the set and the service continues to ...
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2answers
29 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
606 views

gitlab apache redirect loop

I am trying to set up gitlab with apache as the webserver. Thusfar, I have been unsuccesful. The sidekiq and unicorn start fine, but when I try to visit the root site, I get redirected to /users/login ...
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0answers
166 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 ...
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2answers
202 views

Can't run two separated sites under the same NGINX server

I'm trying to run two separated sites on the same server using nginx. Depending of the configuration, nginx serves one site or another under both domain names. It won't run each site on it's own ...
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2answers
686 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; } ...
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0answers
348 views

nginx configuration for rails subdir deployment

I'm having quite a bit of trouble configuring nginx to serve my Rails app's static files; I mean all the files in the app's public/ folder, not just the files in Rails' asset pipeline. It seems I'm ...
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1answer
188 views

Unicorn rails server with Apache

I'm looking for the best setup to use in conjunction with Unicorn. Are there clear advantages or disadvantages to using Unicorn rails server with Apache? Should I consider using NGINX? I'm concerned ...
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1answer
147 views

nginx: simplify config for force ssl on specific path for rails app

im using the config below. it works, but the problem for me is the repeating of some lines. the proxy_* directives need to be in location /admin also, because only one location will be executed by ...
3
votes
1answer
188 views

Who should own the god process?

I have a stack running on ubuntu consisting of a Rack application written in Sinatra and GrapeAPI. The application stack includes Redis, Postgres, Nginx and unicorn. I want to use god to handle ...
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votes
3answers
680 views

Is slow IO on my cloud server causing my slow server restart issues?

I'm running two servers on Rackspace cloud one for the web app and one for the db and redis instances. The web server has 1Gb of ram and single core. Nginx sits in front of unicorn which is running 2 ...
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0answers
95 views

Deploying sinatra app on rails app sub uri using( unicorn and nginx)

I have rails app running on unicorn+nginx. below is the nginx.conf and unicorn.rb configuration. nginx.conf upstream unicorn { server unix:/tmp/unicorn.todo.sock fail_timeout=0; } server{ ...
0
votes
2answers
77 views

App got press, then servers got owned. I added 8 more servers, STILL too slow [duplicate]

Our new app has received a lot of press today, and is getting thousands of new users every hour... but it has become so slow that it's unusable. We're using Rails 3 patched to latest, ubuntu, ...
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0answers
98 views

Best way to profile Unicorn workers?

I'm trying to get a better picture of what my Unicorn workers are doing. Are they blocked on calls to other services for a significant portion of their cycles? Are they free most of the time? The ...
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0answers
243 views

Why do I need to precompile Rails assets on app servers?

I'm deploying a simple Rails app to this small ubuntu precise64 server setup : * 1 server running nginx * 2 servers running unicorn * 1 server running postgresql My servers are provisionned with ...
0
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1answer
104 views

Combining Nginx redirect rules

I've just migrated a Rails app from an Apache/Passenger server to a new Nginx/Unicorn server and I'm having some trouble getting the necessary redirects to work. So far the config (which was set up ...
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2answers
305 views

Nginx + Unicorn multiple apps with locations - routing

I would like to run multiple rails apps with just using different location blocks. Different unicorn workers are started and configured, they are working just fine. Every app is under the same ...
1
vote
1answer
610 views

IP spoofing attack errors after setting up a nodebalancer on Linode.com

I recently set up a NodeBalancer in front of a Rails 3.2.12 app. The app is served by nginx and Unicorn. All seems to work fine, but I get a lot of errors such as these that I didn't get when I only ...
2
votes
1answer
673 views

Unicorn error while hosting a Rails app with NGINX

All of a sudden my app stopped working and these are the last lines I am getting from unicorn.log unicorn worker[0] -D -c /home/deployer/apps/myapp/current/config/unicorn.rb -E production: ...
4
votes
1answer
2k views

Unicorn workers dying

Last night at around midnight, our app fell over and I'm trying to determine why. We currently have a nginx front end server and 2 unicorn worker (app) servers on EC2. Pretty much our unicorn workers ...
0
votes
1answer
161 views

Unicorn Shared Socket

Is it possible to have a unix socket across a network? Is it possible to have multiple application servers running unicorn use that same shared socket? The setup I'd like to achieve would look like: ...
0
votes
1answer
456 views

Nginx + Unicorn Rails Application gets 404 when requests number are high

I have a Rails application deployed using Nginx + Unicorn. Last night, when the traffic peaked, Nginx was getting lots of 404 errors. When I dig into logs, those 404 requests on the nginx side did not ...
0
votes
1answer
159 views

Nginx + Upstream + scaling down ec2 instances

In the process of deploying multiple EC2 instances running a Rails app over Unicorn. I currently have a "front end" server running nginx with multiple "Unicorn" upstream providers. At night, I'd like ...
2
votes
1answer
495 views

How to debug why my server has 3s delay on each request nginx/unicorn?

I am trying to debug why my server has 3 seconds delay on each request. These are my nginx and unicorn config files: https://gist.github.com/regedarek/de7f2e5cd1918b6224ac My server info: ...
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vote
1answer
214 views

How to have supervisord follows the new unicorn process after USR2 rolling restart?

I have configured supervisord to track my unicorn server process. When I send USR2 process, this performs a rolling restart. After this operation the old unicorn master have restarted and then changed ...
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votes
2answers
813 views

How to restart RoR services after server has been rebooted

Update I have been searching around to see what services would possibly need to be restarted in my project after reboot. One of them was thinking sphinx, which I finally got to the point where it ...
1
vote
1answer
185 views

RHEL 6.x on Rackspace Cloud and Dedicated hardware experiencing Redis Timeouts

I just recently set up a mixture of RHEL 6.1 Rackspace cloud hosts and RHEL 6.2 dedicated hosts using Rackconnect. I am experiencing intermittent Redis timeouts from within our Rails 3.2.8 app with ...
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1answer
262 views

Unicorn, USR2 and the config file

My Bash script has the following code that doesn't throw an error. echo "Reloading Unicorn if USR2 is enabled" kill -USR2 `cat $PID` if [ -s $OLD_PID ] then kill -WINCH `cat $OLD_PID` && kill -QUIT ...
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1answer
685 views

User start daemon .pid Permission denied

Trying to start a unicorn daemon as a non-root user but failing hard. Unicorn gives the the following error: directory for pid=/var/run/sinatra_test/sinatra_test.pid not writable So I made the ...
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3answers
274 views

Sudo won't execute command as another user

I'm trying to get a unicorn server to start when the server boots. I've created a shell script which works if I log as the ubuntu user and run /etc/init.d/unicorn start Shell script #!/bin/sh ...
0
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1answer
807 views

unicorn and nginx, went wrong

I try to deploy my app via capistrano. It was done, but when I start to nginx and show my site in the browser I see 'We're sorry, but something went wrong.' It is bad. I use unicorn. See my configs ...
0
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1answer
299 views

custom 502 error page for nginx with unicorn not working, driving me insane ;)

I tried several times and on multiple occasions to try and fix the below code for nginx with unicorn, but it just isen't working. So now posting here in last report some of you more talented could see ...