From d599c4b28c406c95051de5e4905e17203fca0d70 Mon Sep 17 00:00:00 2001
From: Bryan Boreham <bjboreham@gmail.com>
Date: Mon, 2 Sep 2024 16:42:48 +0100
Subject: [PATCH] [BUGFIX] Protobuf scraping: reset exemplar position

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
---
 model/textparse/protobufparse.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/model/textparse/protobufparse.go b/model/textparse/protobufparse.go
index ea3a2e1a34..d7cbd3519a 100644
--- a/model/textparse/protobufparse.go
+++ b/model/textparse/protobufparse.go
@@ -409,6 +409,7 @@ func (p *ProtobufParser) Next() (Entry, error) {
 	switch p.state {
 	case EntryInvalid:
 		p.metricPos = 0
+		p.exemplarPos = 0
 		p.fieldPos = -2
 		n, err := readDelimited(p.in[p.inPos:], p.mf)
 		p.inPos += n
@@ -485,6 +486,7 @@ func (p *ProtobufParser) Next() (Entry, error) {
 			p.metricPos++
 			p.fieldPos = -2
 			p.fieldsDone = false
+			p.exemplarPos = 0
 			// If this is a metric family containing native
 			// histograms, we have to switch back to native
 			// histograms after parsing a classic histogram.