diff --git a/internal/indexservice/indexservice.go b/internal/indexservice/indexservice.go
index 0eb0cc3898..038c9769e0 100644
--- a/internal/indexservice/indexservice.go
+++ b/internal/indexservice/indexservice.go
@@ -318,6 +318,7 @@ func (i *IndexService) BuildIndex(ctx context.Context, req *indexpb.BuildIndexRe
 		ret.Status.Reason = err.Error()
 		return ret, nil
 	}
+	log.Debug("IndexService BuildIndex Enqueue successfully", zap.Any("IndexBuildID", indexBuildID))
 
 	err = t.WaitToFinish()
 	if err != nil {
@@ -611,7 +612,6 @@ func (i *IndexService) assignTasksServerStart() error {
 		if err = i.addNode(session.ServerID, req); err != nil {
 			log.Debug("IndexService", zap.Any("IndexService start find node fatal, err = ", err))
 		}
-
 	}
 	var serverIDs []int64
 	for _, session := range sessions {
diff --git a/internal/indexservice/node_mgr.go b/internal/indexservice/node_mgr.go
index 7735f7a11b..9af90c4a05 100644
--- a/internal/indexservice/node_mgr.go
+++ b/internal/indexservice/node_mgr.go
@@ -36,6 +36,8 @@ func (i *IndexService) addNode(nodeID UniqueID, req *indexpb.RegisterNodeRequest
 	i.nodeLock.Lock()
 	defer i.nodeLock.Unlock()
 
+	log.Debug("IndexService addNode", zap.Any("nodeID", nodeID), zap.Any("node address", req.Address))
+
 	if i.nodeClients.CheckAddressExist(req.Address) {
 		log.Debug("IndexService", zap.Any("Node client already exist with ID:", nodeID))
 		return nil
diff --git a/internal/indexservice/task.go b/internal/indexservice/task.go
index 44b2e5dba9..6455fd2a35 100644
--- a/internal/indexservice/task.go
+++ b/internal/indexservice/task.go
@@ -107,12 +107,13 @@ func (it *IndexAddTask) OnEnqueue() error {
 }
 
 func (it *IndexAddTask) PreExecute(ctx context.Context) error {
+	log.Debug("IndexService IndexAddTask PreExecute", zap.Any("IndexBuildID", it.indexBuildID))
 	it.req.IndexBuildID = it.indexBuildID
 	return nil
 }
 
 func (it *IndexAddTask) Execute(ctx context.Context) error {
-	log.Debug("IndexService", zap.Any("BuildIndex, IndexBuildID = ", it.indexBuildID))
+	log.Debug("IndexService IndexAddTask Execute", zap.Any("IndexBuildID", it.indexBuildID))
 	err := it.table.AddIndex(it.indexBuildID, it.req)
 	if err != nil {
 		return err
@@ -121,5 +122,6 @@ func (it *IndexAddTask) Execute(ctx context.Context) error {
 }
 
 func (it *IndexAddTask) PostExecute(ctx context.Context) error {
+	log.Debug("IndexService IndexAddTask PostExecute", zap.Any("IndexBuildID", it.indexBuildID))
 	return nil
 }