activejob/lib/rails/generators/job/templates/application_job.rb.tt
<% module_namespacing do -%>
class ApplicationJob < ActiveJob::Base
# Automatically retry jobs that encountered a deadlock
# retry_on ActiveRecord::Deadlocked
# Most jobs are safe to ignore if the underlying records are no longer available
# discard_on ActiveJob::DeserializationError
end
<% end -%>