lib/delayed/tasks.rb
namespace :jobs do
desc 'Clear the delayed_job queue.'
task :clear => :environment do
Delayed::Job.delete_all
end
desc 'Start a delayed_job worker.'
task :work => :environment_options do
Delayed::Worker.new(@worker_options).start
end
desc 'Start a delayed_job worker and exit when all available jobs are complete.'
task :workoff => :environment_options do
Delayed::Worker.new(@worker_options.merge(:exit_on_complete => true)).start
end
task :environment_options => :environment do
@worker_options = {
:min_priority => ENV['MIN_PRIORITY'],
:max_priority => ENV['MAX_PRIORITY'],
:queues => (ENV['QUEUES'] || ENV['QUEUE'] || '').split(','),
:quiet => ENV['QUIET']
}
@worker_options[:sleep_delay] = ENV['SLEEP_DELAY'].to_i if ENV['SLEEP_DELAY']
@worker_options[:read_ahead] = ENV['READ_AHEAD'].to_i if ENV['READ_AHEAD']
end
desc "Exit with error status if any jobs older than max_age seconds haven't been attempted yet."
task :check, [:max_age] => :environment do |_, args|
args.with_defaults(:max_age => 300)
unprocessed_jobs = Delayed::Job.where('attempts = 0 AND created_at < ?', Time.now - args[:max_age].to_i).count
if unprocessed_jobs > 0
raise "#{unprocessed_jobs} jobs older than #{args[:max_age]} seconds have not been processed yet"
end
end
end