See which Rails applications are being served by your Passenger

Updated . Posted . Visible to the public.

To obtain a list of Passenger processes with their application directories and memory usages, you can say

sudo passenger-memory-stats

This will output a list like this:

----- Passenger processes -----
PID    VMSize    Private  Name
-------------------------------
671    112.9 MB  95.5 MB  Rails: /opt/www/project1/current
707    79.4 MB   60.5 MB  Rails: /opt/www/project2/current
1094   88.1 MB   69.3 MB  Rails: /opt/www/project3/current
1260   81.6 MB   62.6 MB  Rails: /opt/www/project4/current
1269   72.9 MB   55.6 MB  Rails: /opt/www/project5/current
Henning Koch
makandra.de
Say thanks1
Last edit
License
Source code in this card is licensed under the MIT License.

Related cards:

Passenger ignores RailsEnv directive for Rails 3 applications

You might find that your Passenger ignores all RailsSomething directives in the vhost for your new Rails 3 application. The culprit is a file config.ru which makes Passenger consider your application a Rack (non-Rails) application.

To fix thi...

no passenger served applications running error when deploying via capistrano

When deploying with capistrano it's possible you get this "error" message:

*** [err :: example.com] There are no Phusion Passenger-served applications running whose paths begin with '/var/www/example.com'.
*** [err :: example.com]

This ...

Gem development: When your specs don't see dependencies from your Gemfile

When you develop a gem and you have a Gemfile in your project directory, you might be surprised that your gem dependencies aren't already required in your specs. Here is some info that should help you out:

  • Bundler actually doesn't automatical...

How to see how many inotify instances are used by each process

As a developer you may have many tools watching your project for changes: Your IDE, Webpack, Guard, etc. This is often done with an inotify watcher. If you have too many inotify instances you may run into limits of your operating system.

To fin...

Common mistakes when storing file uploads with Rails

1. Saving files to a directory that is not shared between deploys or servers

If you save your uploads to a made up directory like "RAILS_ROOT/uploads", this directory goes away after every deploy (since every release gets a new). Also this di...

Upgrading Rails 2 from 2.3.8 through 2.3.18 to Rails LTS

This card shows how to upgrade a Rails 2 application from Rails 2.3.8 through every single patch level up to 2.3.18, and then, hopefully, Rails LTS.

2.3.8 to 2.3.9

This release has [many minor changes and fi...

Fix LoadError with Rails 3 applications on Passenger

After switching to Rails 3 you may get a LoadError with the following message when trying to use your application via passenger:
no such file to load -- dispatcher

Your Passenger version is most likely out of date.

Update the gem, then ins...

Speed up file downloads with Rails, Apache and X-Sendfile

When you use the send_file method to send a local file to the browser, you can save resources on the application server by setting the :x_sendfile option to true. This option i...

Rails: Fixing ETags that never match

Every Rails response has a default ETag header. In theory this would enable caching for multiple requests to the same resource. Unfortunately the default ETags produced b...

Caching in Rails < 6.1 may down parts of your application when using public cache control

Proxy caching is a good feature to serve your publicly visible application content faster and reduce load on your servers. It is e.g. available in nginx, but also affects proxies delivered by ISPs.

Unfortunately, there is a little problem in Rail...

Posted by Henning Koch to makandra dev (2011-06-30 08:12)
This website uses short-lived cookies to improve usability.
or learn more