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Support forking of workers (rake jobs:work NUM_PROCESSES=3) #565

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Support forking of workers (rake jobs:work NUM_PROCESSES=3) #565

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18 changes: 16 additions & 2 deletions lib/delayed/tasks.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,20 @@

desc "Start a delayed_job worker."
task :work => :environment_options do
Delayed::Worker.new(@worker_options).start
if @worker_options[:num_processes] == 1
Delayed::Worker.new(@worker_options).start
else
Delayed::Worker.before_fork
@worker_options[:num_processes].times do |worker_index|
fork do
Delayed::Worker.after_fork
worker = Delayed::Worker.new(@worker_options)
worker.name_prefix = "delayed_job.#{worker_index} "
worker.start
end
end
sleep
end
end

desc "Start a delayed_job worker and exit when all available jobs are complete."
Expand All @@ -19,7 +32,8 @@
:min_priority => ENV['MIN_PRIORITY'],
:max_priority => ENV['MAX_PRIORITY'],
:queues => (ENV['QUEUES'] || ENV['QUEUE'] || '').split(','),
:quiet => false
:quiet => false,
:num_processes => ENV['NUM_PROCESSES'] ? ENV['NUM_PROCESSES'].to_i : 1
}
end

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