diff --git a/cpp/src/sdk/examples/simple/src/ClientTest.cpp b/cpp/src/sdk/examples/simple/src/ClientTest.cpp
index a17e4e5703b2e2602e85a0649a41e3c9052c47b7..c04a0442ca08a16ac3d21c0c4451784eb91cd83a 100644
--- a/cpp/src/sdk/examples/simple/src/ClientTest.cpp
+++ b/cpp/src/sdk/examples/simple/src/ClientTest.cpp
@@ -22,7 +22,7 @@ namespace {
     static constexpr int64_t NQ = 10;
     static constexpr int64_t TOP_K = 10;
     static constexpr int64_t SEARCH_TARGET = 5000; //change this value, result is different
-    static constexpr int64_t ADD_VECTOR_LOOP = 10;
+    static constexpr int64_t ADD_VECTOR_LOOP = 1;
     static constexpr int64_t SECONDS_EACH_HOUR = 3600;
 
 #define BLOCK_SPLITER std::cout << "===========================================" << std::endl;
diff --git a/cpp/src/server/RequestTask.cpp b/cpp/src/server/RequestTask.cpp
index c6a34556003ed4eee8b1bb814bd81633568b6a40..e71fe294769e33ddd75c9d4ff4ef31bb94eda722 100644
--- a/cpp/src/server/RequestTask.cpp
+++ b/cpp/src/server/RequestTask.cpp
@@ -687,7 +687,7 @@ ServerError SearchVectorTask2::ConstructResult(engine::QueryResults& results) {
 
         engine::IDNumber* ids_ptr = (engine::IDNumber*)str_ids.data();
         double* distance_ptr = (double*)str_distances.data();
-        for(size_t k = 0; k < results.size(); k++) {
+        for(size_t k = 0; k < result.size(); k++) {
             auto& pair = result[k];
             ids_ptr[k] = pair.first;
             distance_ptr[k] = pair.second;