updated DB_POOL variable

config/puma/production.rb

@@ -14,7 +14,14 @@ on_worker_boot do
   if defined?(ActiveRecord::Base)
     ActiveSupport.on_load(:active_record) do
       ActiveRecord::Base.connection.disconnect! rescue ActiveRecord::ConnectionNotEstablished
-      ActiveRecord::Base.establish_connection
+
+      config = Rails.application.config.database_configuration[Rails.env]
+      config['reaping_frequency'] = ENV['DB_REAP_FREQ'] || 10 # seconds
+      config['pool']              = ENV['DB_POOL']      || 21
+
+      ActiveRecord::Base.establish_connection(config)
+
+      Rails.logger.info "Connected to PG. Connection pool size #{config['pool']}, reaping frequency #{config['reaping_frequency']}"
     end
     # QC::Conn.connect
     Rails.logger.info('Connected to PG')