Resque Population Control!

Resque jobs getting out of hand? Bring them to order with this new resque plugin!

TODO: Delete this and the text above, and describe your gem

Add this line to your application's Gemfile:

gem 'resque-population-control'

And then execute:

$ bundle

Or install it yourself as:

$ gem install resque-population-control

The following examples limits Job to having at most 100 enqeueud or running instances.

class Job
    extend Resque::Plugins::PopulationControl
    population_control 100

     @queue = :jobs

    def self.perform(customer_id)
       ...
    end
end

By default, a Resque::Plugins::PopulationControl::PopulationExceeded exception will be thrown whenever things get out of hand. If you wish to suppress this, there is an option to do that. This will cause things to fail silently and prevent any job from getting enqueued if the current population is past the limit. To get more info and visibility in these situations, you can implement on_population_exceeded to add things like logging and whatever else you deem needed.

class Job
    extend Resque::Plugins::PopulationControl
    population_control 100, :suppress_exceptions => true

     @queue = :jobs

    def self.perform(customer_id)
       ...
    end

    def self.on_population_exceeded max_size, *args
       logger.debug "Attempt to enqueue #{name} with payload #{args.inspect} failed since population exceeds #{max_size}."
    end
end

After checking out the repo, run bin/setup to install dependencies. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/MishaConway/resque-population-control