63 lines
2.4 KiB
Ruby
63 lines
2.4 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Metrics
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module Samplers
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class ActionCableSampler < BaseSampler
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SAMPLING_INTERVAL_SECONDS = 5
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def initialize(interval = SAMPLING_INTERVAL_SECONDS, action_cable: ::ActionCable.server)
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super(interval)
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@action_cable = action_cable
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end
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def metrics
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@metrics ||= {
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active_connections: ::Gitlab::Metrics.gauge(
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:action_cable_active_connections, 'Number of ActionCable WS clients currently connected'
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),
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pool_min_size: ::Gitlab::Metrics.gauge(
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:action_cable_pool_min_size, 'Minimum number of worker threads in ActionCable thread pool'
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),
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pool_max_size: ::Gitlab::Metrics.gauge(
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:action_cable_pool_max_size, 'Maximum number of worker threads in ActionCable thread pool'
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),
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pool_current_size: ::Gitlab::Metrics.gauge(
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:action_cable_pool_current_size, 'Current number of worker threads in ActionCable thread pool'
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),
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pool_largest_size: ::Gitlab::Metrics.gauge(
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:action_cable_pool_largest_size, 'Largest number of worker threads observed so far in ActionCable thread pool'
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),
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pool_completed_tasks: ::Gitlab::Metrics.gauge(
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:action_cable_pool_tasks_total, 'Total number of tasks executed in ActionCable thread pool'
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),
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pool_pending_tasks: ::Gitlab::Metrics.gauge(
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:action_cable_pool_pending_tasks, 'Number of tasks waiting to be executed in ActionCable thread pool'
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)
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}
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end
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def sample
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pool = @action_cable.worker_pool.executor
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labels = {
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server_mode: server_mode
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}
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metrics[:active_connections].set(labels, @action_cable.connections.size)
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metrics[:pool_min_size].set(labels, pool.min_length)
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metrics[:pool_max_size].set(labels, pool.max_length)
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metrics[:pool_current_size].set(labels, pool.length)
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metrics[:pool_largest_size].set(labels, pool.largest_length)
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metrics[:pool_completed_tasks].set(labels, pool.completed_task_count)
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metrics[:pool_pending_tasks].set(labels, pool.queue_length)
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end
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private
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def server_mode
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Gitlab::ActionCable::Config.in_app? ? 'in-app' : 'standalone'
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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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