diff --git a/internal/indexcoord/node_manager.go b/internal/indexcoord/node_manager.go
index c3ee3340ea..be6281b170 100644
--- a/internal/indexcoord/node_manager.go
+++ b/internal/indexcoord/node_manager.go
@@ -144,6 +144,7 @@ func (nm *NodeManager) ListNode() []UniqueID {
 	for _, id := range clientIDs {
 		memory := nm.pq.GetMemory(id)
 		if memory == 0 {
+			log.Debug("IndexCoord get IndexNode metrics info", zap.Int64("nodeID", id))
 			req, err := metricsinfo.ConstructRequestByMetricType(metricsinfo.SystemInfoMetrics)
 			if err != nil {
 				log.Error("create metrics request failed", zap.Error(err))