From 699af30017930df9d6d7f215ab5f239de668294d Mon Sep 17 00:00:00 2001
From: Xiaodong Ye <yeahdongcn@gmail.com>
Date: Wed, 20 Nov 2024 08:48:47 +0800
Subject: [PATCH] Add a warning message if metric not found

Signed-off-by: Xiaodong Ye <yeahdongcn@gmail.com>
---
 collector/rdma_linux.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/collector/rdma_linux.go b/collector/rdma_linux.go
index f7563ae3..76eee2d1 100644
--- a/collector/rdma_linux.go
+++ b/collector/rdma_linux.go
@@ -230,6 +230,11 @@ func (c *rdmaCollector) Update(ch chan<- prometheus.Metric) error {
 			if !c.metricsPattern.MatchString(name) {
 				return
 			}
+			entry := c.entry(name)
+			if entry == nil {
+				c.logger.Warn("rdma metric not found", "name", name)
+				return
+			}
 			ch <- prometheus.MustNewConstMetric(c.entry(name), prometheus.GaugeValue,
 				value, labelValues...)
 		}