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Gemfile

@@ -9,6 +9,9 @@ gem 'bootsnap', '>= 1.1.0', require: false
 gem 'puma', '~> 3.11'
 gem 'sidekiq'
 
+# Metrics
+gem 'barnes'
+
 # Database
 gem 'data_migrate'
 gem 'pg', '>= 0.18', '< 2.0'

Gemfile.lock

@@ -52,6 +52,9 @@ GEM
       public_suffix (>= 2.0.2, < 4.0)
     arel (9.0.0)
     ast (2.4.0)
+    barnes (0.0.7)
+      multi_json (~> 1)
+      statsd-ruby (~> 1.1)
     bootsnap (1.3.2)
       msgpack (~> 1.0)
     buftok (0.2.0)
@@ -255,6 +258,7 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
+    statsd-ruby (1.4.0)
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.9)
@@ -292,6 +296,7 @@ PLATFORMS
 
 DEPENDENCIES
   andand!
+  barnes
   bootsnap (>= 1.1.0)
   commonmarker (~> 0.16)
   data_migrate

config/puma.rb

@@ -1,34 +1,18 @@
-# Puma can serve each request in a thread from an internal thread pool.
-# The `threads` method setting takes two numbers: a minimum and maximum.
-# Any libraries that use thread pools should be configured to match
-# the maximum value specified for Puma. Default is set to 5 threads for minimum
-# and maximum; this matches the default thread size of Active Record.
-#
+require 'barnes'
+
+before_fork do
+  # worker specific setup
+
+  Barnes.start
+end
+
 threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
 threads threads_count, threads_count
 
-# Specifies the `port` that Puma will listen on to receive requests; default is 3000.
-#
 port        ENV.fetch("PORT") { 3000 }
 
-# Specifies the `environment` that Puma will run in.
-#
 environment ENV.fetch("RAILS_ENV") { "development" }
 
-# Specifies the number of `workers` to boot in clustered mode.
-# Workers are forked webserver processes. If using threads and workers together
-# the concurrency of the application would be max `threads` * `workers`.
-# Workers do not work on JRuby or Windows (both of which do not support
-# processes).
-#
-# workers ENV.fetch("WEB_CONCURRENCY") { 2 }
-
-# Use the `preload_app!` method when specifying a `workers` number.
-# This directive tells Puma to first boot the application and load code
-# before forking the application. This takes advantage of Copy On Write
-# process behavior so workers use less memory.
-#
-# preload_app!
-
-# Allow puma to be restarted by `rails restart` command.
+
+
 plugin :tmp_restart