From 1273715d11b99d6f819bc3f54d1f1ba795186760 Mon Sep 17 00:00:00 2001
From: Denys Kondratenko <denisok@users.noreply.github.com>
Date: Thu, 23 Jun 2022 11:11:27 +0200
Subject: [PATCH] Fix connection issue to multiple databases.

Co-Authored-By: Andrii Skomorokhov <andrii.skomorokhov@percona.com>
Signed-off-by: Denys Kondratenko <denys.kondratenko@percona.com>
---
 cmd/postgres_exporter/server.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmd/postgres_exporter/server.go b/cmd/postgres_exporter/server.go
index 8747dffa0..e37440c4c 100644
--- a/cmd/postgres_exporter/server.go
+++ b/cmd/postgres_exporter/server.go
@@ -69,7 +69,7 @@ func NewServer(dsn string, opts ...ServerOpt) (*Server, error) {
 		return nil, err
 	}
 	db.SetMaxOpenConns(1)
-	db.SetMaxIdleConns(1)
+	db.SetMaxIdleConns(-1)
 
 	level.Info(logger).Log("msg", "Established new database connection", "fingerprint", fingerprint)