34 lines
1.3 KiB
Ruby
34 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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Gitlab::Application.configure do |config|
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config.middleware.use(Gitlab::Database::LoadBalancing::RackMiddleware)
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end
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Gitlab::Database::LoadBalancing.base_models.each do |model|
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# The load balancer needs to be configured immediately, and re-configured
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# after forking. This ensures queries that run before forking use the load
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# balancer, and queries running after a fork don't run into any errors when
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# using dead database connections.
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#
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# See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/63485 for more
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# information.
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Gitlab::Database::LoadBalancing::Setup.new(model).setup
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# Database queries may be run before we fork, so we must set up the load
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# balancer as early as possible. When we do fork, we need to make sure all the
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# hosts are disconnected.
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Gitlab::Cluster::LifecycleEvents.on_before_fork do
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# When forking, we don't want to wait until the connections aren't in use
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# any more, as this could delay the boot cycle.
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model.load_balancer.disconnect!(timeout: 0)
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end
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# Service discovery only needs to run in the worker processes, as the main one
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# won't be running many (if any) database queries.
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Gitlab::Cluster::LifecycleEvents.on_worker_start do
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Gitlab::Database::LoadBalancing::Setup
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.new(model, start_service_discovery: true)
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.setup
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end
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end
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