diff --git a/be/src/exec/olap_scanner.cpp b/be/src/exec/olap_scanner.cpp
index 27ae379e36600c..4819e820f63cd1 100644
--- a/be/src/exec/olap_scanner.cpp
+++ b/be/src/exec/olap_scanner.cpp
@@ -119,7 +119,7 @@ Status OlapScanner::_prepare(
             if (acquire_reader_st != OLAP_SUCCESS) {
                 LOG(WARNING) << "fail to init reader.res=" << acquire_reader_st;
                 std::stringstream ss;
-                ss << "failed to initialize storage reader. tablet=" << _params.tablet->full_name()
+                ss << "failed to initialize storage reader. tablet=" << _tablet->full_name()
                 << ", res=" << acquire_reader_st << ", backend=" << BackendOptions::get_localhost();
                 return Status::InternalError(ss.str().c_str());
             }
diff --git a/be/src/olap/rowset/alpha_rowset_writer.cpp b/be/src/olap/rowset/alpha_rowset_writer.cpp
index 3e607e46243bf2..a002744d2a8032 100644
--- a/be/src/olap/rowset/alpha_rowset_writer.cpp
+++ b/be/src/olap/rowset/alpha_rowset_writer.cpp
@@ -131,7 +131,7 @@ OLAPStatus AlphaRowsetWriter::add_rowset(RowsetSharedPtr rowset) {
         _cur_segment_group->set_num_segments(segment_group->num_segments());
         _cur_segment_group->add_zone_maps_for_linked_schema_change(segment_group->get_zone_maps());
         RETURN_NOT_OK(flush());
-        _num_rows_written += alpha_rowset->num_rows();
+        _num_rows_written += segment_group->num_rows();
     }
     return OLAP_SUCCESS;
 }