ProbableGiggle

Simple distributed locking using a shared database instance. Battle-tested in production with MySQL and MariaDB

Installation

Add this line to your application's Gemfile:

gem 'probable-giggle'

And then execute:

$ bundle

Or install it yourself as:

$ gem install probable-giggle

Usage

Put it to initializers/probable_giggle.rb

ProbableGiggle::Configuration.connection = -> { ActiveRecord::Base.connection }
ProbableGiggle::Configuration.logger = Rails.logger

Somewhere in your project

class MultiServerTaskRunner
  include ProbableGiggle::Lockable

  def run_exclusively
    with_lock('lock1') { do_some_work }
  end
end

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. 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.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/bookmate/probable-giggle.

License

The gem is available as open source under the terms of the MIT License.