diff --git a/cpp/src/db/DBImpl.cpp b/cpp/src/db/DBImpl.cpp
index e2bad26deb..747a61ddbe 100644
--- a/cpp/src/db/DBImpl.cpp
+++ b/cpp/src/db/DBImpl.cpp
@@ -898,36 +898,34 @@ DBImpl::BackgroundBuildIndex() {
     meta_ptr_->FilesToIndex(to_index_files);
     Status status;
 
+//    scheduler::BuildIndexJobPtr
+//        job = std::make_shared<scheduler::BuildIndexJob>(0, meta_ptr_, options_);
+
     // step 2: put build index task to scheduler
+//    for (auto &file : to_index_files) {
+//        scheduler::TableFileSchemaPtr file_ptr = std::make_shared<meta::TableFileSchema>(file);
+//        job->AddToIndexFiles(file_ptr);
+//    }
+//    scheduler::JobMgrInst::GetInstance()->Put(job);
+//    job->WaitBuildIndexFinish();
+//    if (!job->GetStatus().ok()) {
+//        Status status = job->GetStatus();
+//        ENGINE_LOG_ERROR << "Building index failed: " << status.ToString();
+//    }
+
     for (auto &file : to_index_files) {
-        scheduler::BuildIndexJobPtr
-            job = std::make_shared<scheduler::BuildIndexJob>(0, meta_ptr_, options_);
-
-        scheduler::TableFileSchemaPtr file_ptr = std::make_shared<meta::TableFileSchema>(file);
-
-        job->AddToIndexFiles(file_ptr);
-        scheduler::JobMgrInst::GetInstance()->Put(job);
-        job->WaitBuildIndexFinish();
-        if (!job->GetStatus().ok()) {
-            Status status = job->GetStatus();
+        std::cout << "get to index file" << std::endl;
+        status = BuildIndex(file);
+        if (!status.ok()) {
             ENGINE_LOG_ERROR << "Building index for " << file.id_ << " failed: " << status.ToString();
         }
+
+        if (shutting_down_.load(std::memory_order_acquire)) {
+            ENGINE_LOG_DEBUG << "Server will shutdown, skip build index action";
+            break;
+        }
     }
 
-
-//    for (auto &file : to_index_files) {
-//        std::cout << "get to index file" << std::endl;
-//        status = BuildIndex(file);
-//        if (!status.ok()) {
-//            ENGINE_LOG_ERROR << "Building index for " << file.id_ << " failed: " << status.ToString();
-//        }
-//
-//        if (shutting_down_.load(std::memory_order_acquire)) {
-//            ENGINE_LOG_DEBUG << "Server will shutdown, skip build index action";
-//            break;
-//        }
-//    }
-
     ENGINE_LOG_TRACE << "Background build index thread exit";
 }
 
diff --git a/cpp/src/metrics/PrometheusMetrics.cpp b/cpp/src/metrics/PrometheusMetrics.cpp
index bc1860389f..182f14d46c 100644
--- a/cpp/src/metrics/PrometheusMetrics.cpp
+++ b/cpp/src/metrics/PrometheusMetrics.cpp
@@ -46,7 +46,7 @@ PrometheusMetrics::Init() {
             return s.code();
         }
 
-        const std::string uri = std::string("/tmp/metrics");
+        const std::string uri = std::string("/metrics");
         const std::size_t num_threads = 2;
 
         // Init Exposer