From 98c9ef96146854a2f0fd8c342dae33fde8596155 Mon Sep 17 00:00:00 2001
From: Sarah Hoffmann <lonvia@denofr.de>
Date: Wed, 12 Jun 2024 16:23:53 +0200
Subject: [PATCH] add prometheus alert for too many parallel connections to
 nominatim

---
 cookbooks/prometheus/templates/default/alert_rules.yml.erb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cookbooks/prometheus/templates/default/alert_rules.yml.erb b/cookbooks/prometheus/templates/default/alert_rules.yml.erb
index fdb90765b..dfb83891d 100644
--- a/cookbooks/prometheus/templates/default/alert_rules.yml.erb
+++ b/cookbooks/prometheus/templates/default/alert_rules.yml.erb
@@ -488,6 +488,11 @@ groups:
           alertgroup: nominatim
         annotations:
           delay: "{{ $value | humanizeDuration }}"
+      - alert: nominatim connections
+        expr: sum(nginx_connections_writing and on (instance) chef_role{name="nominatim"}) > 2500
+        for: 15m
+        labels:
+          alertgroup: nominatim
   - name: overpass
     rules:
       - alert: overpass osm database age
-- 
2.39.5