diff --git a/src/rootserver/ob_ddl_service.cpp b/src/rootserver/ob_ddl_service.cpp
index 258459a977..846b0692a0 100644
--- a/src/rootserver/ob_ddl_service.cpp
+++ b/src/rootserver/ob_ddl_service.cpp
@@ -16149,6 +16149,12 @@ int ObDDLService::check_db_and_table_is_exist(const obrpc::ObTruncateTableArg &a
           LOG_WARN("truncate oracle tmp table not supported",
                   KR(ret), K(tenant_id), K(table_name), K(database_name));
         }
+      } else if (OB_FAIL(ret) && OB_ITER_END == ret) {
+        ret = OB_TABLE_NOT_EXIST;
+        LOG_WARN("can not find table",
+                KR(ret), K(tenant_id), K(table_name), K(database_name));
+        LOG_USER_ERROR(OB_TABLE_NOT_EXIST, to_cstring(database_name),
+                                            to_cstring(table_name));
       }
     }
   }
diff --git a/src/share/ob_debug_sync_point.h b/src/share/ob_debug_sync_point.h
index 9543071c6c..3f07f40735 100644
--- a/src/share/ob_debug_sync_point.h
+++ b/src/share/ob_debug_sync_point.h
@@ -458,6 +458,7 @@ class ObString;
     ACT(MEMBERLIST_CHANGE_MEMBER,)\
     ACT(BEFORE_CHECK_CLEAN_DRTASK,)\
     ACT(BEFORE_UNIQ_TASK_RUN,)\
+    ACT(BEFORE_PARELLEL_TRUNCATE,)\
     ACT(MAX_DEBUG_SYNC_POINT,)
 
 DECLARE_ENUM(ObDebugSyncPoint, debug_sync_point, OB_DEBUG_SYNC_POINT_DEF);
diff --git a/src/sql/engine/cmd/ob_table_executor.cpp b/src/sql/engine/cmd/ob_table_executor.cpp
index ab824fff83..1f24d4daa7 100644
--- a/src/sql/engine/cmd/ob_table_executor.cpp
+++ b/src/sql/engine/cmd/ob_table_executor.cpp
@@ -53,6 +53,7 @@
 #include "share/backup/ob_backup_io_adapter.h"
 #include "share/external_table/ob_external_table_file_rpc_processor.h"
 #include "share/external_table/ob_external_table_utils.h"
+#include "share/ob_debug_sync.h"
 namespace oceanbase
 {
 using namespace common;
@@ -2081,6 +2082,7 @@ int ObTruncateTableExecutor::execute(ObExecContext &ctx, ObTruncateTableStmt &st
         } else {
           int64_t start_time = ObTimeUtility::current_time();
           while (OB_SUCC(ret)) {
+            DEBUG_SYNC(BEFORE_PARELLEL_TRUNCATE);
             if (OB_FAIL(common_rpc_proxy->truncate_table_v2(truncate_table_arg, res))) {
               LOG_WARN("rpc proxy truncate table failed", K(ret));
               if ((OB_TRY_LOCK_ROW_CONFLICT == ret || OB_TIMEOUT == ret || OB_NOT_MASTER == ret