Requeue failed job

failed_job.rake

namespace :resque do
  nemaspace :failed_job do
    desc 'restart the N latest failed jobs and remove them from failed jobs queue.'
    task :restart, [:n_latest] => [:environment] do |t, args|
      args.with_defaults(n_latest: 20)
      start_at = Resque::Failure.count - args[:n_latest] - 1
      finished_at = Resque::Failure.count - 1
      (start_at..finished_at).each do |index|
        Resque::Failure.requeue_and_remove(index)
      end
    end
  end
end