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limit_fetch.rb
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limit_fetch.rb
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require 'forwardable'
require 'sidekiq'
require 'sidekiq/manager'
require 'sidekiq/api'
module Sidekiq::LimitFetch
autoload :UnitOfWork, 'sidekiq/limit_fetch/unit_of_work'
require_relative 'limit_fetch/instances'
require_relative 'limit_fetch/queues'
require_relative 'limit_fetch/global/semaphore'
require_relative 'limit_fetch/global/selector'
require_relative 'limit_fetch/global/monitor'
require_relative 'extensions/queue'
require_relative 'extensions/manager'
extend self
def new(_)
self
end
def retrieve_work
queue, job = redis_brpop(Queues.acquire)
Queues.release_except(queue)
UnitOfWork.new(queue, job) if job
end
# Backwards compatibility for sidekiq v6.1.0
# @see https://github.com/mperham/sidekiq/pull/4602
def bulk_requeue(*args)
if Sidekiq::BasicFetch.respond_to?(:bulk_requeue) # < 6.1.0
Sidekiq::BasicFetch.bulk_requeue(*args)
else # 6.1.0+
Sidekiq::BasicFetch.new(Sidekiq.options).bulk_requeue(*args)
end
end
def redis_retryable
yield
rescue Redis::BaseConnectionError
sleep 1
retry
end
private
TIMEOUT = Sidekiq::BasicFetch::TIMEOUT
def redis_brpop(queues)
if queues.empty?
sleep TIMEOUT # there are no queues to handle, so lets sleep
[] # and return nothing
else
redis_retryable { Sidekiq.redis { |it| it.brpop *queues, TIMEOUT } }
end
end
end