diff --git a/be/src/runtime/fragment_mgr.cpp b/be/src/runtime/fragment_mgr.cpp
index 33493be2d997d6..3b59394330aa0e 100644
--- a/be/src/runtime/fragment_mgr.cpp
+++ b/be/src/runtime/fragment_mgr.cpp
@@ -801,33 +801,30 @@ Status FragmentMgr::exec_plan_fragment(const TPipelineFragmentParams& params,
         query_ctx->set_merge_controller_handler(handler);
     }
 
-    {
+    for (const auto& local_param : params.local_params) {
+        int64 now = duration_cast<std::chrono::milliseconds>(
+                            std::chrono::system_clock::now().time_since_epoch())
+                            .count();
+        const TUniqueId& fragment_instance_id = local_param.fragment_instance_id;
         // (query_id, fragment_id) is executed only on one BE, locks _pipeline_map.
         std::lock_guard<std::mutex> lock(_lock);
-        for (const auto& local_param : params.local_params) {
-            const TUniqueId& fragment_instance_id = local_param.fragment_instance_id;
-            auto iter = _pipeline_map.find({params.query_id, params.fragment_id});
-            if (iter != _pipeline_map.end()) {
-                return Status::InternalError("exec_plan_fragment input duplicated fragment_id({})",
-                                             params.fragment_id);
-            }
-            query_ctx->fragment_instance_ids.push_back(fragment_instance_id);
+        auto iter = _pipeline_map.find({params.query_id, params.fragment_id});
+        if (iter != _pipeline_map.end()) {
+            return Status::InternalError("exec_plan_fragment input duplicated fragment_id({})",
+                                         params.fragment_id);
         }
+        query_ctx->fragment_instance_ids.push_back(fragment_instance_id);
 
-        if (!params.__isset.need_wait_execution_trigger || !params.need_wait_execution_trigger) {
-            query_ctx->set_ready_to_execute_only();
-        }
+        g_fragment_executing_count << 1;
+        g_fragment_last_active_time.set_value(now);
+        // TODO: simplify this mapping
+        _pipeline_map.insert({{params.query_id, params.fragment_id}, context});
+    }
 
-        int64 now = duration_cast<std::chrono::milliseconds>(
-                            std::chrono::system_clock::now().time_since_epoch())
-                            .count();
-        {
-            g_fragment_executing_count << 1;
-            g_fragment_last_active_time.set_value(now);
-            // TODO: simplify this mapping
-            _pipeline_map.insert({{params.query_id, params.fragment_id}, context});
-        }
+    if (!params.__isset.need_wait_execution_trigger || !params.need_wait_execution_trigger) {
+        query_ctx->set_ready_to_execute_only();
     }
+
     query_ctx->set_pipeline_context(params.fragment_id, context);
 
     RETURN_IF_ERROR(context->submit());