diff --git a/src/sql/das/ob_das_define.h b/src/sql/das/ob_das_define.h
index f0864f3282..40a1bc45e1 100644
--- a/src/sql/das/ob_das_define.h
+++ b/src/sql/das/ob_das_define.h
@@ -57,7 +57,7 @@ const int64_t OB_DAS_MAX_PACKET_SIZE = 2 * 1024 * 1024l - 8 * 1024;
  * it can be considered that the DAS request will send at most one RPC request to each zone.
  * so OB_DAS_MAX_TOTAL_PACKET_SIZE was defined as:
  */
-const int64_t OB_DAS_MAX_TOTAL_PACKET_SIZE = 2 * OB_DAS_MAX_PACKET_SIZE;
+const int64_t OB_DAS_MAX_TOTAL_PACKET_SIZE = 1 * OB_DAS_MAX_PACKET_SIZE;
 const int64_t OB_DAS_MAX_META_TENANT_PACKET_SIZE = 1 * 1024 * 1024l - 8 * 1024;
 }  // namespace das
 
diff --git a/src/sql/engine/dml/ob_dml_service.cpp b/src/sql/engine/dml/ob_dml_service.cpp
index ac23e8e8e8..4176b54183 100644
--- a/src/sql/engine/dml/ob_dml_service.cpp
+++ b/src/sql/engine/dml/ob_dml_service.cpp
@@ -1570,7 +1570,7 @@ int ObDMLService::write_row_to_das_op(const ObDASDMLBaseCtDef &ctdef,
     if (OB_SUCC(ret) && buffer_full) {
       need_retry = true;
       if (REACH_COUNT_INTERVAL(10)) { // print log per 10 times.
-        LOG_INFO("DAS write buffer full, ", K(dml_op->get_row_cnt()), K(dml_rtctx.das_ref_.get_das_mem_used()), K(dml_rtctx.get_row_buffer_size()));
+        LOG_INFO("DAS write buffer full, ", K(dml_op->get_row_cnt()), K(dml_rtctx.get_row_buffer_size()));
       }
       dml_rtctx.das_ref_.set_frozen_node();
     }
diff --git a/src/sql/engine/dml/ob_table_modify_op.cpp b/src/sql/engine/dml/ob_table_modify_op.cpp
index c47cac02fc..90a62128fb 100644
--- a/src/sql/engine/dml/ob_table_modify_op.cpp
+++ b/src/sql/engine/dml/ob_table_modify_op.cpp
@@ -1111,6 +1111,9 @@ int ObTableModifyOp::discharge_das_write_buffer()
              "buffer memory", dml_rtctx_.das_ref_.get_das_alloc().used(), K(dml_rtctx_.get_row_buffer_size()));
     ret = submit_all_dml_task();
   } else if (execute_single_row_) {
+    if (REACH_COUNT_INTERVAL(100)) { // print log per 100 times.
+      LOG_TRACE("DML task excute single row", K(execute_single_row_));
+    }
     ret = submit_all_dml_task();
   }
   return ret;