Tag metric tracking custom order by with namespace (#4344)

Author: rodrigozhou

common/persistence/visibility/store/elasticsearch/visibility_store.go

@@ -683,6 +683,12 @@ func (s *visibilityStore) buildSearchParametersV2(
 		return nil, serviceerror.NewInvalidArgument("ORDER BY clause is not supported")
 	}
 
+	if len(fieldSorts) > 0 {
+		// If fieldSorts is not empty, then it's using custom order by.
+		s.metricsHandler.WithTags(metrics.NamespaceTag(request.Namespace.String())).
+			Counter(metrics.ElasticsearchCustomOrderByClauseCount.GetMetricName()).Record(1)
+	}
+
 	params := &client.SearchParameters{
 		Index:    s.index,
 		Query:    boolQuery,
@@ -735,7 +741,6 @@ func (s *visibilityStore) setDefaultFieldSort(fieldSorts []*elastic.FieldSort) [
 		return defaultSorter
 	}
 
-	s.metricsHandler.Counter(metrics.ElasticsearchCustomOrderByClauseCount.GetMetricName()).Record(1)
 	res := make([]elastic.Sorter, len(fieldSorts)+1)
 	for i, fs := range fieldSorts {
 		res[i] = fs

common/persistence/visibility/store/elasticsearch/visibility_store_read_test.go

@@ -460,6 +460,7 @@ func (s *ESVisibilitySuite) TestBuildSearchParametersV2() {
 	// test custom sort
 	request.Query = `Order bY WorkflowId`
 	boolQuery = elastic.NewBoolQuery().Filter(matchNamespaceQuery).MustNot(namespaceDivisionExists)
+	s.mockMetricsHandler.EXPECT().WithTags(metrics.NamespaceTag(request.Namespace.String())).Return(s.mockMetricsHandler)
 	s.mockMetricsHandler.EXPECT().Counter(metrics.ElasticsearchCustomOrderByClauseCount.GetMetricName()).Return(metrics.NoopCounterMetricFunc)
 	p, err = s.visibilityStore.buildSearchParametersV2(request)
 	s.NoError(err)