57 lines
1.8 KiB
Ruby
57 lines
1.8 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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# Once we add support for multiple databases to our load balancer, we would use something like this:
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# job['wal_locations'] = Gitlab::Database::DATABASES.transform_values do |connection|
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# connection.load_balancer.primary_write_location
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# end
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#
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job['wal_locations'] = { Gitlab::Database::MAIN_DATABASE_NAME.to_sym => wal_location } if wal_location
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end
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def wal_location
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strong_memoize(:wal_location) do
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if Session.current.use_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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end
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def load_balancer
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LoadBalancing.proxy.load_balancer
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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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