discourse/lib/demon/sidekiq.rb
Sam 384135845b FEATURE: introduce ultra_low priority queue
This commit introduces an ultra low priority queue for post rebakes. This
way rebakes can never interfere with regular sidekiq processing for cases
where we perform a large scale rebake.

Additionally it allows Post.rebake_old to be run with rate_limiter: false
to avoid triggering the limiter when rebaking. This is handy for cases
where you want to just force the full rebake and not wait for it to trickle
2019-01-17 14:53:19 +11:00

60 lines
1.5 KiB
Ruby

require "demon/base"
class Demon::Sidekiq < Demon::Base
def self.prefix
"sidekiq"
end
def self.after_fork(&blk)
blk ? (@blk = blk) : @blk
end
private
def suppress_stdout
false
end
def suppress_stderr
false
end
def after_fork
Demon::Sidekiq.after_fork&.call
puts "Loading Sidekiq in process id #{Process.pid}"
require 'sidekiq/cli'
# CLI will close the logger, if we have one set we can be in big
# trouble, if STDOUT is closed in our process all sort of weird
# will ensue, resetting the logger ensures it will reinit correctly
# parent process is in charge of the file anyway.
Sidekiq::Logging.logger = nil
cli = Sidekiq::CLI.instance
options = ["-c", GlobalSetting.sidekiq_workers.to_s]
[['critical', 8], ['default', 4], ['low', 2], ['ultra_low', 1]].each do |queue_name, weight|
custom_queue_hostname = ENV["UNICORN_SIDEKIQ_#{queue_name.upcase}_QUEUE_HOSTNAME"]
if !custom_queue_hostname || custom_queue_hostname.split(',').include?(`hostname`.strip)
options << "-q"
options << "#{queue_name},#{weight}"
end
end
# Sidekiq not as high priority as web, in this environment it is forked so a web is very
# likely running
Discourse::Utils.execute_command('renice', '-n', '5', '-p', Process.pid.to_s)
cli.parse(options)
load Rails.root + "config/initializers/100-sidekiq.rb"
cli.run
rescue => e
STDERR.puts e.message
STDERR.puts e.backtrace.join("\n")
exit 1
end
end