From 454d443b72dad5956f2acb71413ed0b6f1098c26 Mon Sep 17 00:00:00 2001
From: Markus Lehtonen <markus.lehtonen@intel.com>
Date: Fri, 26 Jul 2024 10:29:15 +0300
Subject: [PATCH] nfd-gc: check that node informer cache sync succeeded

---
 pkg/nfd-gc/nfd-gc.go | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkg/nfd-gc/nfd-gc.go b/pkg/nfd-gc/nfd-gc.go
index fd0e7f4a91..a092aa1b03 100644
--- a/pkg/nfd-gc/nfd-gc.go
+++ b/pkg/nfd-gc/nfd-gc.go
@@ -18,6 +18,7 @@ package nfdgarbagecollector
 
 import (
 	"context"
+	"fmt"
 	"time"
 
 	topologyclientset "github.com/k8stopologyawareschedwg/noderesourcetopology-api/pkg/generated/clientset/versioned"
@@ -208,7 +209,15 @@ func (n *nfdGarbageCollector) startNodeInformer() error {
 
 	// start informers
 	n.factory.Start(n.stopChan)
-	n.factory.WaitForCacheSync(n.stopChan)
+
+	start := time.Now()
+	ret := n.factory.WaitForCacheSync(n.stopChan)
+	for res, ok := range ret {
+		if !ok {
+			return fmt.Errorf("node informer cache failed to sync (%s)", res)
+		}
+	}
+	klog.InfoS("node informer cache synced", "duration", time.Since(start))
 
 	return nil
 }