Sidekiq::RetrySet.new.clear
Sidekiq::RetrySet.new.retry_all
Sidekiq::ScheduledSet.new.clear
Sidekiq::Stats.new.reset
Sidekiq::DeadSet.new.clear
stats = Sidekiq::Stats.new
stats.queues
queue = Sidekiq::Queue.new('queue_name')
queue.count
queue.clear
queue.each { |job| job.item } # hash content
Sidekiq.redis { |redis| redis.keys }