1 files changed, 0 insertions, 73 deletions
diff --git a/lib/gitlab/metrics/samplers/unicorn_sampler.rb b/lib/gitlab/metrics/samplers/unicorn_sampler.rb
deleted file mode 100644
index 2fa324f3fea..00000000000
--- a/lib/gitlab/metrics/samplers/unicorn_sampler.rb
+++ /dev/null
@@ -1,73 +0,0 @@
-# frozen_string_literal: true
-
-module Gitlab
-  module Metrics
-    module Samplers
-      class UnicornSampler < BaseSampler
-        DEFAULT_SAMPLING_INTERVAL_SECONDS = 5
-
-        def metrics
-          @metrics ||= init_metrics
-        end
-
-        def init_metrics
-          {
-            unicorn_active_connections: ::Gitlab::Metrics.gauge(:unicorn_active_connections, 'Unicorn active connections', {}, :max),
-            unicorn_queued_connections: ::Gitlab::Metrics.gauge(:unicorn_queued_connections, 'Unicorn queued connections', {}, :max),
-            unicorn_workers:            ::Gitlab::Metrics.gauge(:unicorn_workers, 'Unicorn workers')
-          }
-        end
-
-        def enabled?
-          # Raindrops::Linux.tcp_listener_stats is only present on Linux
-          unicorn_with_listeners? && Raindrops::Linux.respond_to?(:tcp_listener_stats)
-        end
-
-        def sample
-          Raindrops::Linux.tcp_listener_stats(tcp_listeners).each do |addr, stats|
-            set_unicorn_connection_metrics('tcp', addr, stats)
-          end
-          Raindrops::Linux.unix_listener_stats(unix_listeners).each do |addr, stats|
-            set_unicorn_connection_metrics('unix', addr, stats)
-          end
-
-          metrics[:unicorn_workers].set({}, unicorn_workers_count)
-        end
-
-        private
-
-        def tcp_listeners
-          @tcp_listeners ||= Unicorn.listener_names.grep(%r{\A[^/]+:\d+\z})
-        end
-
-        def set_unicorn_connection_metrics(type, addr, stats)
-          labels = { socket_type: type, socket_address: addr }
-
-          metrics[:unicorn_active_connections].set(labels, stats.active)
-          metrics[:unicorn_queued_connections].set(labels, stats.queued)
-        end
-
-        def unix_listeners
-          @unix_listeners ||= Unicorn.listener_names - tcp_listeners
-        end
-
-        def unicorn_with_listeners?
-          defined?(Unicorn) && Unicorn.listener_names.any?
-        end
-
-        def unicorn_workers_count
-          http_servers.sum(&:worker_processes)
-        end
-
-        # Traversal of ObjectSpace is expensive, on fully loaded application
-        # it takes around 80ms. The instances of HttpServers are not a subject
-        # to change so we can cache the list of servers.
-        def http_servers
-          return [] unless Gitlab::Runtime.unicorn?
-
-          @http_servers ||= ObjectSpace.each_object(::Unicorn::HttpServer).to_a
-        end
-      end
-    end
-  end
-end