diff --git a/cpp/dbpool.cc b/cpp/dbpool.cc
index 8e5aafe..afaaae1 100644
--- a/cpp/dbpool.cc
+++ b/cpp/dbpool.cc
@@ -373,6 +373,9 @@ namespace f8
             if (!request) {
                 return;
             }
+            if (DBPool::Instance()->on_dberror) {
+                DBPool::Instance()->on_dberror(request->param, errcode, errmsg);
+            }
             if (request->on_error) {
                 request->on_error(request->param, errcode, errmsg);
             }
diff --git a/cpp/dbpool.h b/cpp/dbpool.h
index 8a415c9..2d61b26 100644
--- a/cpp/dbpool.h
+++ b/cpp/dbpool.h
@@ -13,6 +13,9 @@ namespace f8
         DBPool() {};
         friend class a8::Singleton<DBPool>;
 
+    public:
+        AsyncDBOnErrorFunc on_dberror = nullptr;
+
     public:
         void Init();
         void UnInit();