70 lines
2.1 KiB
Ruby
70 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Database
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module LoadBalancing
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class SidekiqClientMiddleware
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include Gitlab::Utils::StrongMemoize
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def call(worker_class, job, _queue, _redis_pool)
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# Mailers can't be constantized
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worker_class = worker_class.to_s.safe_constantize
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if load_balancing_enabled?(worker_class)
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job['worker_data_consistency'] = worker_class.get_data_consistency
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set_data_consistency_locations!(job) unless job['wal_locations']
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else
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job['worker_data_consistency'] = ::WorkerAttributes::DEFAULT_DATA_CONSISTENCY
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end
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yield
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end
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private
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def load_balancing_enabled?(worker_class)
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worker_class &&
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worker_class.include?(::ApplicationWorker) &&
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worker_class.utilizes_load_balancing_capabilities? &&
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worker_class.get_data_consistency_feature_flag_enabled?
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end
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def set_data_consistency_locations!(job)
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locations = {}
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::Gitlab::Database::LoadBalancing.each_load_balancer do |lb|
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if (location = wal_location_for(lb))
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locations[lb.name] = location
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end
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end
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job['wal_locations'] = locations
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job['wal_location_source'] = wal_location_source
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end
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def wal_location_source
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if ::Gitlab::Database::LoadBalancing.primary_only? || uses_primary?
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::Gitlab::Database::LoadBalancing::ROLE_PRIMARY
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else
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::Gitlab::Database::LoadBalancing::ROLE_REPLICA
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end
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end
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def wal_location_for(load_balancer)
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# When only using the primary there's no need for any WAL queries.
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return if load_balancer.primary_only?
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if uses_primary?
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load_balancer.primary_write_location
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else
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load_balancer.host.database_replica_location
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end
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end
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def uses_primary?
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::Gitlab::Database::LoadBalancing::Session.current.use_primary?
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end
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end
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end
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end
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end
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