diff --git a/core/CHANGELOG.md b/core/CHANGELOG.md
index 13248265d7..2467013ba9 100644
--- a/core/CHANGELOG.md
+++ b/core/CHANGELOG.md
@@ -17,6 +17,8 @@ Please mark all change in change log and use the ticket from JIRA.
 - MS-640 - Cache object size calculate incorrect
 - MS-641 - Segment fault(signal 11) in PickToLoad
 - MS-639 - SQ8H index created failed and server hang
+- MS-647 - [monitor] grafana display average cpu-temp
+- MS-644 - Search crashed with index-type: flat
 - MS-624 - Search vectors failed if time ranges long enough
 
 ## Improvement
diff --git a/core/src/metrics/PrometheusMetrics.cpp b/core/src/metrics/PrometheusMetrics.cpp
index 182f14d46c..770b34dc47 100644
--- a/core/src/metrics/PrometheusMetrics.cpp
+++ b/core/src/metrics/PrometheusMetrics.cpp
@@ -222,10 +222,19 @@ PrometheusMetrics::CPUTemperature() {
 
     std::vector<float> CPU_temperatures = server::SystemInfo::GetInstance().CPUTemperature();
 
+    float avg_cpu_temp = 0;
     for (int i = 0; i < CPU_temperatures.size(); ++i) {
-        prometheus::Gauge& cpu_temp = CPU_temperature_.Add({{"CPU", std::to_string(i)}});
-        cpu_temp.Set(CPU_temperatures[i]);
+        avg_cpu_temp += CPU_temperatures[i];
     }
+    avg_cpu_temp /= CPU_temperatures.size();
+
+    prometheus::Gauge& cpu_temp = CPU_temperature_.Add({{"CPU", std::to_string(0)}});
+    cpu_temp.Set(avg_cpu_temp);
+
+    //    for (int i = 0; i < CPU_temperatures.size(); ++i) {
+    //        prometheus::Gauge& cpu_temp = CPU_temperature_.Add({{"CPU", std::to_string(i)}});
+    //        cpu_temp.Set(CPU_temperatures[i]);
+    //    }
 }
 
 void
diff --git a/core/src/scheduler/action/PushTaskToNeighbour.cpp b/core/src/scheduler/action/PushTaskToNeighbour.cpp
index b42234d0f6..7fbcf77afc 100644
--- a/core/src/scheduler/action/PushTaskToNeighbour.cpp
+++ b/core/src/scheduler/action/PushTaskToNeighbour.cpp
@@ -110,16 +110,18 @@ Action::DefaultLabelTaskScheduler(ResourceMgrWPtr res_mgr, ResourcePtr resource,
         bool moved = false;
 
         // to support test task, REFACTOR
-        if (auto index_engine = search_task->index_engine_) {
-            auto location = index_engine->GetLocation();
+        if (resource->type() == ResourceType::CPU) {
+            if (auto index_engine = search_task->index_engine_) {
+                auto location = index_engine->GetLocation();
 
-            for (auto i = 0; i < res_mgr.lock()->GetNumGpuResource(); ++i) {
-                auto index = milvus::cache::GpuCacheMgr::GetInstance(i)->GetIndex(location);
-                if (index != nullptr) {
-                    moved = true;
-                    auto dest_resource = res_mgr.lock()->GetResource(ResourceType::GPU, i);
-                    PushTaskToResource(event->task_table_item_->task, dest_resource);
-                    break;
+                for (auto i = 0; i < res_mgr.lock()->GetNumGpuResource(); ++i) {
+                    auto index = milvus::cache::GpuCacheMgr::GetInstance(i)->GetIndex(location);
+                    if (index != nullptr) {
+                        moved = true;
+                        auto dest_resource = res_mgr.lock()->GetResource(ResourceType::GPU, i);
+                        PushTaskToResource(event->task_table_item_->task, dest_resource);
+                        break;
+                    }
                 }
             }
         }