refactor: Updates config/initializers/prometheus.rb

Adds `Middleware instrumentation` fix for 0 memory bug by notifying Action Dispatch subscribers on Prometheus initialise
epimorphics · Sep 17, 2024 · 3305c88 · 3305c88
1 parent c0c49fb
commit 3305c88
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/config/initializers/prometheus.rb b/config/initializers/prometheus.rb
@@ -48,3 +48,7 @@
   docstring: 'Histogram of response times for API requests',
   buckets: Prometheus::Client::Histogram.exponential_buckets(start: 0.005, count: 16)
 )
+
+# Middleware instrumentation
+  # This fixes the 0 memory bug by notifying Action Dispatch subscribers on Prometheus initialise
+  ActiveSupport::Notifications.instrument('process_middleware.action_dispatch')