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-rw-r--r--config/initializers/instrumentation.rb18
-rw-r--r--config/initializers/statsd.rb19
2 files changed, 24 insertions, 13 deletions
diff --git a/config/initializers/instrumentation.rb b/config/initializers/instrumentation.rb
new file mode 100644
index 000000000..8483f2be2
--- /dev/null
+++ b/config/initializers/instrumentation.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+instrumentation_hostname = ENV.fetch('INSTRUMENTATION_HOSTNAME') { 'localhost' }
+
+ActiveSupport::Notifications.subscribe(/process_action.action_controller/) do |*args|
+  event      = ActiveSupport::Notifications::Event.new(*args)
+  controller = event.payload[:controller]
+  action     = event.payload[:action]
+  format     = event.payload[:format] || 'all'
+  format     = 'all' if format == '*/*'
+  status     = event.payload[:status]
+  key        = "#{controller}.#{action}.#{format}.#{instrumentation_hostname}"
+
+  ActiveSupport::Notifications.instrument :performance, action: :measure, measurement: "#{key}.total_duration", value: event.duration
+  ActiveSupport::Notifications.instrument :performance, action: :measure, measurement: "#{key}.db_time", value: event.payload[:db_runtime]
+  ActiveSupport::Notifications.instrument :performance, action: :measure, measurement: "#{key}.view_time", value: event.payload[:view_runtime]
+  ActiveSupport::Notifications.instrument :performance, measurement: "#{key}.status.#{status}"
+end
diff --git a/config/initializers/statsd.rb b/config/initializers/statsd.rb
index c9c754e7f..4e772a5ed 100644
--- a/config/initializers/statsd.rb
+++ b/config/initializers/statsd.rb
@@ -3,18 +3,11 @@
 StatsD.prefix              = 'mastodon'
 StatsD.default_sample_rate = 1
 
-StatsDMonitor.extend(StatsD::Instrument)
-StatsDMonitor.statsd_measure(:call, 'request.duration')
+ActiveSupport::Notifications.subscribe(/performance/) do |name, _start, _finish, _id, payload|
+  action      = payload[:action] || :increment
+  measurement = payload[:measurement]
+  value       = payload[:value]
+  key_name    = "#{name}.#{measurement}"
 
-STATSD_REQUEST_METRICS = {
-  'request.status.success'               => 200,
-  'request.status.not_found'             => 404,
-  'request.status.too_many_requests'     => 429,
-  'request.status.internal_server_error' => 500,
-}.freeze
-
-STATSD_REQUEST_METRICS.each do |name, code|
-  StatsDMonitor.statsd_count_if(:call, name) do |status, _env, _body|
-    status.to_i == code
-  end
+  StatsD.send(action.to_s, key_name, (value || 1))
 end