diff --git a/src/main/java/com/kamco/cd/training/dataset/service/DatasetService.java b/src/main/java/com/kamco/cd/training/dataset/service/DatasetService.java
index 4213e78..dccba96 100644
--- a/src/main/java/com/kamco/cd/training/dataset/service/DatasetService.java
+++ b/src/main/java/com/kamco/cd/training/dataset/service/DatasetService.java
@@ -712,9 +712,6 @@ public class DatasetService {
     String targetYyyy = fileNameStr[2];
     String mapSheetNum = fileNameStr[3];
 
-    int batchSize = 500;
-    int i = 0;
-
     if (json != null && json.path("features") != null && !json.path("features").isEmpty()) {
 
       for (JsonNode feature : json.path("features")) {
@@ -755,12 +752,6 @@ public class DatasetService {
         } else {
           datasetCoreService.insertDatasetTestObj(objRegDto);
         }
-
-        // batch flush
-        if (++i % batchSize == 0) {
-          em.flush();
-          em.clear();
-        }
       }
     }
   }