diff --git a/main.go b/main.go
index 79160f1a..544a7956 100644
--- a/main.go
+++ b/main.go
@@ -103,6 +103,8 @@ func main() {
 
 	controllers.InitializeMetrics()
 
+	// Done: setup controllers
+	setupLog.Info("setting up controllers", "mgr", mgr)
 	if err := controllers.SetupControllers(ctx, mgr, strings.Split(stopReconcilers, ","), true); err != nil {
 		setupLog.Error(err, "unable to setup controller with manager")
 		os.Exit(1)
diff --git a/pkg/controllers/components.go b/pkg/controllers/components.go
index 597e0966..59adafa4 100644
--- a/pkg/controllers/components.go
+++ b/pkg/controllers/components.go
@@ -1,9 +1,11 @@
 package controllers
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"reflect"
+	ctrl "sigs.k8s.io/controller-runtime"
 	"strings"
 
 	appsv1 "k8s.io/api/apps/v1"
@@ -380,14 +382,22 @@ func (c MilvusComponent) GetDependencies(spec v1beta1.MilvusSpec) []MilvusCompon
 
 // IsImageUpdated returns whether the image of the component is updated
 func (c MilvusComponent) IsImageUpdated(m *v1beta1.Milvus) bool {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	logger := ctrl.LoggerFrom(ctx)
+	logger.Info("IsImageUpdated", "ComponentsDeployStatus", m.Status.ComponentsDeployStatus)
+
 	if m.Status.ComponentsDeployStatus == nil {
 		return false
 	}
 	deployStatus := m.Status.ComponentsDeployStatus[c.GetName()]
+	logger.Info("IsImageUpdated", "m.Spec.Com.Image", m.Spec.Com.Image, "deployStatus.Image", deployStatus.Image)
 	if m.Spec.Com.Image != deployStatus.Image {
 		return false
 	}
 
+	logger.Info("IsImageUpdated", "deployStatus.GetState()", deployStatus.GetState())
 	if deployStatus.GetState() != v1beta1.DeploymentComplete {
 		return false
 	}
diff --git a/pkg/controllers/deployment_updater.go b/pkg/controllers/deployment_updater.go
index b00c53db..8a0771d0 100644
--- a/pkg/controllers/deployment_updater.go
+++ b/pkg/controllers/deployment_updater.go
@@ -1,6 +1,9 @@
 package controllers
 
 import (
+	"context"
+	"fmt"
+	ctrl "sigs.k8s.io/controller-runtime"
 	"time"
 
 	"github.com/milvus-io/milvus-operator/apis/milvus.io/v1beta1"
@@ -69,6 +72,12 @@ func updatePodTemplate(
 	appLabels map[string]string,
 	isCreating bool,
 ) {
+	//Done: updatePodTemplate
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	logger := ctrl.LoggerFrom(ctx)
+
 	currentTemplate := template.DeepCopy()
 
 	updatePodMeta(template, appLabels, updater)
@@ -77,10 +86,12 @@ func updatePodTemplate(
 	updateScheduleSpec(template, updater)
 	updateMilvusContainer(template, updater, isCreating)
 	updateSidecars(template, updater)
+	logger.Info("updatePodTemplate", "IsEqual template", IsEqual(currentTemplate, template), "image", updater.GetMergedComponentSpec().Image, "name", updater.GetMilvus().Name)
 	// no rolling update
 	if IsEqual(currentTemplate, template) {
 		return
 	}
+
 	// some defaults change will cause rolling update, so we only perform when rolling update
 	updateSomeFieldsOnlyWhenRolling(template, updater)
 }
@@ -170,6 +181,12 @@ func updateVolumes(template *corev1.PodTemplateSpec, updater deploymentUpdater)
 }
 
 func updateMilvusContainer(template *corev1.PodTemplateSpec, updater deploymentUpdater, isCreating bool) {
+	//Done: updateMilvusContainer
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	logger := ctrl.LoggerFrom(ctx)
+
 	mergedComSpec := updater.GetMergedComponentSpec()
 
 	containerIdx := GetContainerIndex(template.Spec.Containers, updater.GetComponentName())
@@ -229,6 +246,9 @@ func updateMilvusContainer(template *corev1.PodTemplateSpec, updater deploymentU
 		!updater.GetMilvus().IsRollingUpdateEnabled() || // rolling update is disabled
 		updater.GetMilvus().Spec.Com.ImageUpdateMode == v1beta1.ImageUpdateModeAll || // image update mode is update all
 		updater.RollingUpdateImageDependencyReady() {
+		//Done: updateMilvusContainer
+		logger.Info("updateMilvusContainer", "container.Image", container.Image, "mergedComSpec.Image", mergedComSpec.Image)
+
 		container.Image = mergedComSpec.Image
 	}
 
@@ -382,7 +402,14 @@ func (m milvusDeploymentUpdater) RollingUpdateImageDependencyReady() bool {
 		return false
 	}
 	deps := m.component.GetDependencies(m.Spec)
+	//Done: RollingUpdateImageDependencyReady
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	logger := ctrl.LoggerFrom(ctx)
+
 	for _, dep := range deps {
+		logger.Info("RollingUpdateImageDependencyReady", "dep", fmt.Sprintf("%s:%s", dep.Name, dep.FieldName))
 		if !dep.IsImageUpdated(m.GetMilvus()) {
 			return false
 		}
diff --git a/pkg/controllers/deployments.go b/pkg/controllers/deployments.go
index 6ca61346..f2937ff2 100644
--- a/pkg/controllers/deployments.go
+++ b/pkg/controllers/deployments.go
@@ -79,6 +79,7 @@ func (r *MilvusReconciler) updateDeployment(
 		return errors.Wrap(err, "check component has terminating pod")
 	}
 	if hasTerminatingPod {
+		r.logger.Info("[MilvusReconciler.updateDeployment] component has terminating pod, skip update template", "component", component.Name)
 		return updateDeploymentWithoutPodTemplate(deployment, updater)
 	}
 
@@ -122,8 +123,7 @@ func (r *MilvusReconciler) ReconcileComponentDeployment(
 	if IsEqual(old, cur) {
 		// Done: nothing diff
 		r.logger.Info("nothing diff context", "name", cur.Name, "namespace", cur.Namespace)
-		r.logger.Info("old spec", "spec", old)
-		r.logger.Info("cur spec", "spec", cur)
+
 		return nil
 	}