From 52d4a8c7449edfce74e7d495ecb9a070c58f9d31 Mon Sep 17 00:00:00 2001
From: dxrayz <105016816+dxrayz@users.noreply.github.com>
Date: Mon, 16 Dec 2024 13:16:05 +0200
Subject: [PATCH] Update postgres-exporter.yml (#444)

Modify PostgresqlConfigurationChanged for prevent error: "many-to-many matching not allowed: matching labels must be unique on one side" in cases when you have multiple instances of postgres
---
 dist/rules/postgresql/postgres-exporter.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dist/rules/postgresql/postgres-exporter.yml b/dist/rules/postgresql/postgres-exporter.yml
index 2ab461fb6..36070b37f 100644
--- a/dist/rules/postgresql/postgres-exporter.yml
+++ b/dist/rules/postgresql/postgres-exporter.yml
@@ -140,7 +140,7 @@ groups:
         description: "PostgreSQL dead tuples is too large\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
     - alert: PostgresqlConfigurationChanged
-      expr: '{__name__=~"pg_settings_.*"} != ON(__name__) {__name__=~"pg_settings_([^t]|t[^r]|tr[^a]|tra[^n]|tran[^s]|trans[^a]|transa[^c]|transac[^t]|transact[^i]|transacti[^o]|transactio[^n]|transaction[^_]|transaction_[^r]|transaction_r[^e]|transaction_re[^a]|transaction_rea[^d]|transaction_read[^_]|transaction_read_[^o]|transaction_read_o[^n]|transaction_read_on[^l]|transaction_read_onl[^y]).*"} OFFSET 5m'
+      expr: '{__name__=~"pg_settings_.*"} != ON(__name__,instance) {__name__=~"pg_settings_([^t]|t[^r]|tr[^a]|tra[^n]|tran[^s]|trans[^a]|transa[^c]|transac[^t]|transact[^i]|transacti[^o]|transactio[^n]|transaction[^_]|transaction_[^r]|transaction_r[^e]|transaction_re[^a]|transaction_rea[^d]|transaction_read[^_]|transaction_read_[^o]|transaction_read_o[^n]|transaction_read_on[^l]|transaction_read_onl[^y]).*"} OFFSET 5m'
       for: 0m
       labels:
         severity: info