From 3e45567368fc0cbcc0290c73628b1384484845bf Mon Sep 17 00:00:00 2001
From: "Alexander A. Klimov" <alexander.klimov@icinga.com>
Date: Tue, 27 Apr 2021 12:27:48 +0200
Subject: [PATCH] config.Redis#NewClient(): work-around go-redis/redis#1737

... by re-trying once more often than there are connections in the pool.
---
 pkg/config/redis.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkg/config/redis.go b/pkg/config/redis.go
index 4a623c5f..5f3dd4dd 100644
--- a/pkg/config/redis.go
+++ b/pkg/config/redis.go
@@ -33,6 +33,10 @@ func (r *Redis) NewClient(logger *zap.SugaredLogger) (*icingaredis.Client, error
 		ReadTimeout: r.Timeout,
 	})
 
+	opts := c.Options()
+	opts.MaxRetries = opts.PoolSize + 1 // https://github.com/go-redis/redis/issues/1737
+	c = redis.NewClient(opts)
+
 	return icingaredis.NewClient(c, logger, &r.Options), nil
 }