Cancel all failed jobs in qless

cancel_all_failed.rb

def cancel_all_failed_jobs(redis)
  qless = Qless::Client.new(redis: redis)
  qless.jobs.failed.each do |key, count|
    puts "#{key}: #{count}"

    while (jobs = qless.jobs.failed(key, 0, 1000).fetch("jobs")).any?
      qless.bulk_cancel(jobs.map(&:jid))
    end
  end
end