growing_queue_condition

GrowingQueueCondition

This is a God::Condition for god [http://godrb.com/] to alert on a queue that is growing. The principal use case is for a background processors, such as DelayedJob, Resque, ActiveMQ, etc... but could be for any growing queue/table/data store.

Installation

Add this line to your application's Gemfile:

gem 'growing_queue_condition'

And then execute:

$ bundle

Or install it yourself as:

$ gem install growing_queue_condition

Usage

The gem requires a class that responds to an instance method queue_size. The class must be accessible to god.

Example

my_class.rb {code} class MyClass

def <<*self

def queue_size # code returning an int or int-able value end

end {code}

god_config.rb {code} require 'growing_queue_condition'

restart.condition(:growing_queue) do |c| c.times = [3,5] c.interval = 30.seconds c.obj = MyClass.new end

{code}

The example will call the instantiated MyClass instance method queue_size at least 4 times. If the size is larger or the same each time, the condition will fail. See 'Examples' for possible usages.

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request