This article describes the restart behavior of Heroku [dynos](dynos) and how to restart them.| devcenter.heroku.com
Heroku uses a Unix-style process model for web, worker and all other types of commands.| devcenter.heroku.com
Queueing is the key to building scalable web apps. Move the heavy lifting away from your web processes - rather put items on a queue for a background process.| devcenter.heroku.com
A Procfile is a list of process types in an app. Each process type declares a command that is executed when a dyno of that process type is started.| devcenter.heroku.com
Scheduler is a free Heroku add-on for running jobs on your app at scheduled time intervals, much like cron in a traditional server.| devcenter.heroku.com