Monitor resque workers via upstart

Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later. Resque works firing up a set number of workers than will coninuously look for job to be processed and will execute them following the rules defined when the workers are launched. You can have a single worker process any queue or having a single worker processing a single queue or even fire up more workers that will look forward to a single queue. Read more about resque.

A very important topic is to be sure that the workers are always available and that any time your application is deployed also the workers are restarted. This is crucial cause the worker load an instance of your application and will then process the jobs against this application instance. If you deploy a new version of your application but you do not restart your workers the jobs will be run on an outdated code version and this is clearly something you do not want! Read the rest of this entry »