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