68 lines
1.5 KiB
Ruby
68 lines
1.5 KiB
Ruby
# frozen_string_literal: true
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module LimitedCapacity
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class JobTracker # rubocop:disable Scalability/IdempotentWorker
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include Gitlab::Utils::StrongMemoize
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LUA_REGISTER_SCRIPT = <<~EOS
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local set_key, element, max_elements = KEYS[1], ARGV[1], ARGV[2]
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if redis.call("scard", set_key) < tonumber(max_elements) then
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redis.call("sadd", set_key, element)
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return true
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end
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return false
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EOS
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def initialize(namespace)
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@namespace = namespace
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end
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def register(jid, max_jids)
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with_redis do |redis|
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redis.eval(LUA_REGISTER_SCRIPT, keys: [counter_key], argv: [jid, max_jids])
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end.present?
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end
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def remove(jid)
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with_redis do |redis|
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remove_job_keys(redis, jid)
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end
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end
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def clean_up
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completed_jids = Gitlab::SidekiqStatus.completed_jids(running_jids)
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return unless completed_jids.any?
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with_redis do |redis|
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remove_job_keys(redis, completed_jids)
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end
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end
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def count
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with_redis { |redis| redis.scard(counter_key) }
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end
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def running_jids
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with_redis do |redis|
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redis.smembers(counter_key)
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end
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end
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private
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attr_reader :namespace
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def counter_key
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"worker:#{namespace.to_s.underscore}:running"
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end
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def remove_job_keys(redis, keys)
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redis.srem(counter_key, keys)
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end
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def with_redis(&block)
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Gitlab::Redis::Queues.with(&block) # rubocop: disable CodeReuse/ActiveRecord
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end
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end
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end
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