diff --git a/be/src/runtime/result_buffer_mgr.cpp b/be/src/runtime/result_buffer_mgr.cpp
index ccbf0c3ff6729e..7b257f04b15304 100644
--- a/be/src/runtime/result_buffer_mgr.cpp
+++ b/be/src/runtime/result_buffer_mgr.cpp
@@ -69,6 +69,7 @@ Status ResultBufferMgr::init() {
 Status ResultBufferMgr::create_sender(const TUniqueId& query_id, int buffer_size,
                                       std::shared_ptr<BufferControlBlock>* sender, int exec_timout,
                                       int batch_size) {
+    LOG(INFO) << "ResultBufferMgr::create_sender " << print_id(query_id);
     *sender = find_control_block(query_id);
     if (*sender != nullptr) {
         LOG(WARNING) << "already have buffer control block for this instance " << query_id;
@@ -81,6 +82,7 @@ Status ResultBufferMgr::create_sender(const TUniqueId& query_id, int buffer_size
 
     {
         std::unique_lock<std::shared_mutex> wlock(_buffer_map_lock);
+        LOG(INFO) << "ResultBufferMgr::create_sender insert " << print_id(query_id);
         _buffer_map.insert(std::make_pair(query_id, control_block));
         // BufferControlBlock should destroy after max_timeout
         // for exceed max_timeout FE will return timeout to client
@@ -136,6 +138,7 @@ void ResultBufferMgr::fetch_data(const PUniqueId& finst_id, GetResultBatchCtx* c
 
 Status ResultBufferMgr::fetch_arrow_data(const TUniqueId& finst_id,
                                          std::shared_ptr<arrow::RecordBatch>* result) {
+    LOG(INFO) << "ResultBufferMgr::fetch_arrow_data " << print_id(finst_id);
     std::shared_ptr<BufferControlBlock> cb = find_control_block(finst_id);
     if (cb == nullptr) {
         return Status::InternalError("no result for this query, finst_id={}", print_id(finst_id));
@@ -145,12 +148,14 @@ Status ResultBufferMgr::fetch_arrow_data(const TUniqueId& finst_id,
 }
 
 void ResultBufferMgr::cancel(const TUniqueId& query_id) {
+    LOG(INFO) << "ResultBufferMgr::cancel " << print_id(query_id);
     {
         std::unique_lock<std::shared_mutex> wlock(_buffer_map_lock);
         auto iter = _buffer_map.find(query_id);
 
         if (_buffer_map.end() != iter) {
             iter->second->cancel();
+            LOG(INFO) << "ResultBufferMgr::cancel _buffer_map " << print_id(query_id);
             _buffer_map.erase(iter);
         }
     }
@@ -160,6 +165,7 @@ void ResultBufferMgr::cancel(const TUniqueId& query_id) {
         auto arrow_schema_iter = _arrow_schema_map.find(query_id);
 
         if (_arrow_schema_map.end() != arrow_schema_iter) {
+            LOG(INFO) << "ResultBufferMgr::cancel _arrow_schema_map " << print_id(query_id);
             _arrow_schema_map.erase(arrow_schema_iter);
         }
     }