From 84b31762236e6c9b58531ebd71a3af3fc79b5e86 Mon Sep 17 00:00:00 2001
From: Sergio Troiano <sergio.troiano@adevinta.com>
Date: Thu, 14 Mar 2024 10:50:53 +0100
Subject: [PATCH] Fixed scenario where consumers may not have assignments in
 Consumer Groups

---
 kafka_exporter.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kafka_exporter.go b/kafka_exporter.go
index 36021149..9a70ae83 100644
--- a/kafka_exporter.go
+++ b/kafka_exporter.go
@@ -578,6 +578,10 @@ func (e *Exporter) collect(ch chan<- prometheus.Metric) {
 				}
 			} else {
 				for _, member := range group.Members {
+					if len(member.MemberAssignment) == 0 {
+						klog.Warningf("MemberAssignment is empty for group member: %v in group: %v", member.MemberId, group.GroupId)
+						continue
+					}
 					assignment, err := member.GetMemberAssignment()
 					if err != nil {
 						klog.Errorf("Cannot get GetMemberAssignment of group member %v : %v", member, err)