removes concurrency

Author: madoleary

config/puma.rb

@@ -1,20 +1,17 @@
-# 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.
-#
+# config/puma.rb
 
-max_threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
-min_threads_count = ENV.fetch("RAILS_MIN_THREADS") { max_threads_count }
+max_threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }.to_i
+min_threads_count = ENV.fetch("RAILS_MIN_THREADS") { max_threads_count }.to_i
 threads min_threads_count, max_threads_count
 
-workers ENV.fetch("WEB_CONCURRENCY") { 2 }
+# Remove or comment out this line entirely
+# workers ENV.fetch("WEB_CONCURRENCY") { 2 }
+
+# Keep preload_app! if you’re using any job runners
 preload_app!
 
 port        ENV.fetch("PORT") { 3000 }
-environment ENV.fetch("RAILS_ENV", "production")
-
+environment ENV.fetch("RAILS_ENV") { "production" }
 
 plugin :tmp_restart
 
@@ -24,44 +21,4 @@
 
 on_worker_boot do
   ActiveRecord::Base.establish_connection if defined?(ActiveRecord)
-end
-
-# 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. If you use this option
-# you need to make sure to reconnect any threads in the `on_worker_boot`
-# block.
-#
-# preload_app!
-
-# If you are preloading your application and using Active Record, it's
-# recommended that you close any connections to the database before workers
-# are forked to prevent connection leakage.
-#
-# before_fork do
-#   ActiveRecord::Base.connection_pool.disconnect! if defined?(ActiveRecord)
-# end
-
-# The code in the `on_worker_boot` will be called if you are using
-# clustered mode by specifying a number of `workers`. After each worker
-# process is booted, this block will be run. If you are using the `preload_app!`
-# option, you will want to use this block to reconnect to any threads
-# or connections that may have been created at application boot, as Ruby
-# cannot share connections between processes.
-#
-# on_worker_boot do
-#   ActiveRecord::Base.establish_connection if defined?(ActiveRecord)
-# end
-#
-
-# Allow puma to be restarted by `rails restart` command.
-# plugin :tmp_restart
+end