diff --git a/be/src/runtime/buffer_control_block.cpp b/be/src/runtime/buffer_control_block.cpp
index 6f4427746f8103..b9697fb72ed989 100644
--- a/be/src/runtime/buffer_control_block.cpp
+++ b/be/src/runtime/buffer_control_block.cpp
@@ -170,7 +170,10 @@ BufferControlBlock::BufferControlBlock(TUniqueId id, int buffer_size, RuntimeSta
 }
 
 BufferControlBlock::~BufferControlBlock() {
-    cancel(Status::Cancelled("Cancelled"));
+    cancel(Status::Cancelled(fmt::format(
+            "BufferControlBlock is destructed, this is not the expected path, the correct path is "
+            "ResultBufferMgr::cancel before the destructor, fragmentId: {}",
+            print_id(_fragment_id))));
 }
 
 Status BufferControlBlock::init() {
diff --git a/be/src/runtime/result_buffer_mgr.cpp b/be/src/runtime/result_buffer_mgr.cpp
index 5756fd267851fe..e33cc766bc03f3 100644
--- a/be/src/runtime/result_buffer_mgr.cpp
+++ b/be/src/runtime/result_buffer_mgr.cpp
@@ -211,7 +211,8 @@ void ResultBufferMgr::cancel_thread() {
 
         // cancel query
         for (const auto& id : query_to_cancel) {
-            cancel(id, Status::TimedOut("Query tiemout"));
+            cancel(id, Status::Cancelled(fmt::format(
+                               "Clean up expired BufferControlBlock, queryId: {}", print_id(id))));
         }
     } while (!_stop_background_threads_latch.wait_for(std::chrono::seconds(1)));