1Rails.application.config.active_job.queue_adapter = :delayed_job
2Delayed::Worker.destroy_failed_jobs = false
3Delayed::Worker.sleep_delay = 5
4Delayed::Worker.max_attempts = 3
5Delayed::Worker.max_run_time = 5.minutes
6#Delayed::Worker.read_ahead = 10
7Delayed::Worker.delay_jobs = !Rails.env.test?