From fbda980d6ee3871b07745a45e3ed3630e637e6f1 Mon Sep 17 00:00:00 2001
From: Sebastian Serth <Sebastian.Serth@hpi.de>
Date: Mon, 19 Apr 2021 17:58:31 +0200
Subject: [PATCH] Move eager load before forking process for Prometheus

---
 lib/prometheus/controller.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/prometheus/controller.rb b/lib/prometheus/controller.rb
index d467b1d4..a66be6b9 100644
--- a/lib/prometheus/controller.rb
+++ b/lib/prometheus/controller.rb
@@ -12,6 +12,7 @@ module Prometheus
       def initialize_metrics
         register_metrics
 
+        Rails.application.eager_load!
         Thread.new do
           initialize_instance_count
           initialize_rfc_metrics
@@ -33,7 +34,6 @@ module Prometheus
       end
 
       def initialize_instance_count
-        Rails.application.eager_load!
         ApplicationRecord.descendants.reject(&:abstract_class).each do |each|
           @instance_count.observe(each.count, class: each.name)
         end