Sidekiq::Killer

Kills Sidekiq processes when the RSS is too high.

It checks the memory usage of sidekiq after each job, and if the memory usage is higher than specified, it will wait for the specified grace_time before quieting the sidekiq process. After the shutdown_wait time it will forcibly kill sidekiq using the signal specified in shutdown_signal.

Installation

Add this line to your application's Gemfile:

gem 'noxa-sidekiq-killer'

And then execute:

$ bundle

Or install it yourself as:

$ gem install noxa-sidekiq-killer

Usage

Add the following to your Sidekiq configuration:

Sidekiq.configure_server do |config|
  config.server_middleware do |chain|
    chain.add Sidekiq::Killer::Memory, max_rss: 250, grace_time: 0, shutdown_wait: (15 * 60), shutdown_signal: 'SIGKILL'
  end
end

Configuration options

Setting	Description
max_rss	Max RSS (in megabytes)
grace_time	Time to wait before quieting sidekiq (in seconds)
shutdown_wait	Time to wait after quieting to finish off jobs before forcibly killing sidekiq (in seconds)
shutdown_signal	Signal to use to shutdown sidekiq

Acknowledgements

This killer is based on the code from GitLab (https://gitlab.com/gitlab-org/gitlab-ce/).