diff --git a/canal/event.go b/canal/event.go
index fec87c3d..67efec00 100644
--- a/canal/event.go
+++ b/canal/event.go
@@ -85,10 +85,10 @@ func (e *eventHandler) Close() error {
 	return nil
 }
 
-func (e *eventHandler) OnUserPasswordChange(id model.UserID) error {
+func (e *eventHandler) OnUserPasswordChange(ctx context.Context, id model.UserID) error {
 	e.log.Info("user change password", log.User(id))
 
-	if err := e.session.RevokeUser(context.Background(), id); err != nil {
+	if err := e.session.RevokeUser(ctx, id); err != nil {
 		e.log.Error("failed to revoke user", log.User(id), zap.Error(err))
 		return errgo.Wrap(err, "session.RevokeUser")
 	}
@@ -110,14 +110,17 @@ func (e *eventHandler) onMessage(key, value []byte) error {
 
 	e.log.Debug("new message", zap.String("table", p.Source.Table))
 
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
 	var err error
 	switch p.Source.Table {
 	case "chii_subject_fields":
-		err = e.OnSubjectField(key, p)
+		err = e.OnSubjectField(ctx, key, p)
 	case "chii_subjects":
-		err = e.OnSubject(key, p)
+		err = e.OnSubject(ctx, key, p)
 	case "chii_members":
-		err = e.OnUserChange(key, p)
+		err = e.OnUserChange(ctx, key, p)
 	}
 
 	return err
diff --git a/canal/on_subject.go b/canal/on_subject.go
index fbe70e8b..c60a4287 100644
--- a/canal/on_subject.go
+++ b/canal/on_subject.go
@@ -23,32 +23,32 @@ import (
 	"github.com/bangumi/server/internal/model"
 )
 
-func (e *eventHandler) OnSubject(key json.RawMessage, payload Payload) error {
+func (e *eventHandler) OnSubject(ctx context.Context, key json.RawMessage, payload Payload) error {
 	var k SubjectKey
 	if err := json.Unmarshal(key, &k); err != nil {
 		return nil
 	}
 
-	return e.onSubjectChange(k.ID, payload.Op)
+	return e.onSubjectChange(ctx, k.ID, payload.Op)
 }
 
-func (e *eventHandler) OnSubjectField(key json.RawMessage, payload Payload) error {
+func (e *eventHandler) OnSubjectField(ctx context.Context, key json.RawMessage, payload Payload) error {
 	var k SubjectFieldKey
 	if err := json.Unmarshal(key, &k); err != nil {
 		return nil
 	}
 
-	return e.onSubjectChange(k.ID, payload.Op)
+	return e.onSubjectChange(ctx, k.ID, payload.Op)
 }
 
-func (e *eventHandler) onSubjectChange(subjectID model.SubjectID, op string) error {
+func (e *eventHandler) onSubjectChange(ctx context.Context, subjectID model.SubjectID, op string) error {
 	switch op {
 	case opCreate, opUpdate, opSnapshot:
-		if err := e.search.OnSubjectUpdate(context.TODO(), subjectID); err != nil {
+		if err := e.search.OnSubjectUpdate(ctx, subjectID); err != nil {
 			return errgo.Wrap(err, "search.OnSubjectUpdate")
 		}
 	case opDelete:
-		if err := e.search.OnSubjectDelete(context.TODO(), subjectID); err != nil {
+		if err := e.search.OnSubjectDelete(ctx, subjectID); err != nil {
 			return errgo.Wrap(err, "search.OnSubjectDelete")
 		}
 	}
diff --git a/canal/on_user.go b/canal/on_user.go
index 27c5af9b..990a4044 100644
--- a/canal/on_user.go
+++ b/canal/on_user.go
@@ -32,7 +32,7 @@ import (
 	"github.com/bangumi/server/internal/pkg/logger/log"
 )
 
-func (e *eventHandler) OnUserChange(key json.RawMessage, payload Payload) error {
+func (e *eventHandler) OnUserChange(ctx context.Context, key json.RawMessage, payload Payload) error {
 	var k UserKey
 	if err := json.Unmarshal(key, &k); err != nil {
 		e.log.Error("failed to unmarshal json", zap.Error(err))
@@ -53,14 +53,14 @@ func (e *eventHandler) OnUserChange(key json.RawMessage, payload Payload) error
 		}
 
 		if before.Password != after.Password {
-			err := e.OnUserPasswordChange(k.ID)
+			err := e.OnUserPasswordChange(ctx, k.ID)
 			if err != nil {
 				e.log.Error("failed to clear cache", zap.Error(err))
 			}
 		}
 
 		if before.NewNotify != after.NewNotify {
-			e.redis.Publish(context.Background(), fmt.Sprintf("event-user-notify-%d", k.ID), redisUserChannel{
+			e.redis.Publish(ctx, fmt.Sprintf("event-user-notify-%d", k.ID), redisUserChannel{
 				UserID:    k.ID,
 				NewNotify: after.NewNotify,
 			})
@@ -72,14 +72,14 @@ func (e *eventHandler) OnUserChange(key json.RawMessage, payload Payload) error
 			}
 
 			e.log.Debug("clear user avatar cache", log.User(k.ID))
-			go e.clearImageCache(after.Avatar)
+			go e.clearImageCache(context.Background(), after.Avatar)
 		}
 	}
 
 	return nil
 }
 
-func (e *eventHandler) clearImageCache(avatar string) {
+func (e *eventHandler) clearImageCache(ctx context.Context, avatar string) {
 	p, q, ok := strings.Cut(avatar, "?")
 	if !ok {
 		p = avatar
@@ -93,7 +93,7 @@ func (e *eventHandler) clearImageCache(avatar string) {
 
 	e.log.Debug("clear image for prefix", zap.String("avatar", avatar), zap.String("prefix", p))
 
-	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
 
 	pages := s3.NewListObjectsV2Paginator(