From e332c8d8cbef30f07b74e07dc5efd18c37b7da2a Mon Sep 17 00:00:00 2001
From: Matthias Lechner <matlec.public@gmail.com>
Date: Wed, 31 Oct 2018 18:20:43 +0100
Subject: [PATCH] Fix error handling when query fails (#2255)

---
 plugin/loop/loop.go  | 6 ++++++
 plugin/loop/setup.go | 1 +
 2 files changed, 7 insertions(+)

diff --git a/plugin/loop/loop.go b/plugin/loop/loop.go
index 0624d3dd1..45bdc4267 100644
--- a/plugin/loop/loop.go
+++ b/plugin/loop/loop.go
@@ -77,6 +77,12 @@ func (l *Loop) inc() {
 	l.i++
 }
 
+func (l *Loop) reset() {
+	l.Lock()
+	defer l.Unlock()
+	l.i = 0
+}
+
 func (l *Loop) setDisabled() {
 	l.Lock()
 	defer l.Unlock()
diff --git a/plugin/loop/setup.go b/plugin/loop/setup.go
index 93a8bb13b..ba4681cb4 100644
--- a/plugin/loop/setup.go
+++ b/plugin/loop/setup.go
@@ -42,6 +42,7 @@ func setup(c *caddy.Controller) error {
 
 			for time.Now().Before(deadline) {
 				if _, err := l.exchange(addr); err != nil {
+					l.reset()
 					time.Sleep(1 * time.Second)
 					continue
 				}