diff --git a/src/sql/dtl/ob_dtl_interm_result_manager.cpp b/src/sql/dtl/ob_dtl_interm_result_manager.cpp
index 06ea94f6c8..f478f17e23 100644
--- a/src/sql/dtl/ob_dtl_interm_result_manager.cpp
+++ b/src/sql/dtl/ob_dtl_interm_result_manager.cpp
@@ -399,7 +399,10 @@ int ObDTLIntermResultManager::generate_monitor_info_rows(observer::ObDTLIntermRe
 {
   int ret = OB_SUCCESS;
   if (OB_FAIL(map_.foreach_refactored(monitor_info_getter))) {
-    LOG_WARN("fail to generate monitor info array from map", K(ret));
+    LOG_WARN("fail to generate monitor info array from map", K(ret), K(map_.size()));
+    if (OB_SIZE_OVERFLOW == ret) {
+      ret = OB_SUCCESS;
+    }
   }
   LOG_TRACE("generate monitor info rows", K(ret), K(map_.size()));
   return ret;