diff --git a/cmd/eiblog/handler/internal/timer.go b/cmd/eiblog/handler/internal/timer.go
index f2e81be..467c8fc 100644
--- a/cmd/eiblog/handler/internal/timer.go
+++ b/cmd/eiblog/handler/internal/timer.go
@@ -25,79 +25,8 @@ func startTimer() {
 	if err != nil {
 		logrus.Error("startTimer.generateCrossdomain: ", err)
 	}
-
-	ticker := time.NewTicker(time.Hour)
-	for now := range ticker.C {
-		// generate feed & sitemap
-		if now.Hour()%4 == 0 {
-			err = generateFeed()
-			if err != nil {
-				logrus.Error("startTimer.generateFeed: ", err)
-			}
-			err = generateSitemap()
-			if err != nil {
-				logrus.Error("startTimer.generateSitemap: ", err)
-			}
-		}
-		// clean expired articles
-		exp := now.Add(-48 * time.Hour)
-		err := Store.CleanArticles(context.Background(), exp)
-		if err != nil {
-			logrus.Error("startTimer.CleanArticles: ", err)
-		}
-		// fetch disqus count
-		if now.Hour()%5 == 0 {
-			err = DisqusClient.PostsCount(Ei.ArticlesMap)
-			if err != nil {
-				logrus.Error("startTimer.PostsCount: ", err)
-			}
-		}
-	}
-}
-
-// generateFeed 定时刷新feed
-func generateFeed() error {
-	tpl := XMLTemplate.Lookup("feedTpl.xml")
-	if tpl == nil {
-		return errors.New("not found: feedTpl.xml")
-	}
-
-	_, _, articles := Ei.PageArticleFE(1, 20)
-	params := map[string]interface{}{
-		"Title":     Ei.Blogger.BTitle,
-		"SubTitle":  Ei.Blogger.SubTitle,
-		"Host":      config.Conf.Host,
-		"FeedrURL":  config.Conf.FeedRPC.FeedrURL,
-		"BuildDate": time.Now().Format(time.RFC1123Z),
-		"Articles":  articles,
-	}
-	path := filepath.Join(config.EtcDir, "assets", "feed.xml")
-	f, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-	return tpl.Execute(f, params)
-}
-
-// generateSitemap 定时刷新sitemap
-func generateSitemap() error {
-	tpl := XMLTemplate.Lookup("sitemapTpl.xml")
-	if tpl == nil {
-		return errors.New("not found: sitemapTpl.xml")
-	}
-
-	params := map[string]interface{}{
-		"Articles": Ei.Articles,
-		"Host":     config.Conf.Host,
-	}
-	path := filepath.Join(config.EtcDir, "assets", "sitemap.xml")
-	f, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-	return tpl.Execute(f, params)
+	// 定时刷新
+	refreshFeedAndSitemap()
 }
 
 // generateOpensearch 生成opensearch.xml
@@ -158,3 +87,79 @@ func generateCrossdomain() error {
 	defer f.Close()
 	return tpl.Execute(f, params)
 }
+
+// refreshFeedAndSitemap 定时刷新feed和sitemap
+func refreshFeedAndSitemap() {
+	defer time.AfterFunc(time.Hour, refreshFeedAndSitemap)
+
+	now := time.Now()
+	// generate feed & sitemap
+	if now.Hour()%4 == 0 {
+		err := generateFeed()
+		if err != nil {
+			logrus.Error("startTimer.generateFeed: ", err)
+		}
+		err = generateSitemap()
+		if err != nil {
+			logrus.Error("startTimer.generateSitemap: ", err)
+		}
+	}
+	// clean expired articles
+	exp := now.Add(-48 * time.Hour)
+	err := Store.CleanArticles(context.Background(), exp)
+	if err != nil {
+		logrus.Error("startTimer.CleanArticles: ", err)
+	}
+	// fetch disqus count
+	if now.Hour()%5 == 0 {
+		err = DisqusClient.PostsCount(Ei.ArticlesMap)
+		if err != nil {
+			logrus.Error("startTimer.PostsCount: ", err)
+		}
+	}
+}
+
+// generateFeed 定时刷新feed
+func generateFeed() error {
+	tpl := XMLTemplate.Lookup("feedTpl.xml")
+	if tpl == nil {
+		return errors.New("not found: feedTpl.xml")
+	}
+
+	_, _, articles := Ei.PageArticleFE(1, 20)
+	params := map[string]interface{}{
+		"Title":     Ei.Blogger.BTitle,
+		"SubTitle":  Ei.Blogger.SubTitle,
+		"Host":      config.Conf.Host,
+		"FeedrURL":  config.Conf.FeedRPC.FeedrURL,
+		"BuildDate": time.Now().Format(time.RFC1123Z),
+		"Articles":  articles,
+	}
+	path := filepath.Join(config.EtcDir, "assets", "feed.xml")
+	f, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	return tpl.Execute(f, params)
+}
+
+// generateSitemap 定时刷新sitemap
+func generateSitemap() error {
+	tpl := XMLTemplate.Lookup("sitemapTpl.xml")
+	if tpl == nil {
+		return errors.New("not found: sitemapTpl.xml")
+	}
+
+	params := map[string]interface{}{
+		"Articles": Ei.Articles,
+		"Host":     config.Conf.Host,
+	}
+	path := filepath.Join(config.EtcDir, "assets", "sitemap.xml")
+	f, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	return tpl.Execute(f, params)
+}