Mongrel Configuration

Configuring a Mongrel Cluster


$ cd /your/rails/app/directory
$ mongrel_rails cluster::configure -e production -p 1xxxx -N 2

This generates a mongrel_cluster.yml file in your rails app’s config directory.

Options explanations:

-N 2: the number of mongrel instances to start (keep this low unless you’re on a business hosting plan)
-p x: the port number to start the first mongrel instance on. The second instance is started on x + 1, etc. The ports that you may run mongrel instances on are 1xxx0-1xxx9 where xxx is the last 3 digits of your vu login.
-e production: the environment to run the rails app in. Always run in production on PA servers, since development mode has memory leaks


    $ cd /your/rails/app/directory
    $ mongrel_rails cluster::start
    $ mongrel_rails cluster::stop
    $ mongrel_rails cluster::restart

cluster::restart is handy when new code is uploaded, but not when the database structure is changed. In those cases, do a full stop and start.