Fix name.

oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/storage/IBatchDAO.java

@@ -31,9 +31,9 @@ public interface IBatchDAO extends DAO {
      * Push data into the database in async mode. This method is driven by streaming process. This method doesn't
      * request the data queryable immediately after the method finished.
      *
-     * @param prepareRequest data to insert.
+     * @param insertRequest data to insert.
      */
-    void insert(InsertRequest prepareRequest);
+    void insert(InsertRequest insertRequest);
 
     /**
      * Push data collection into the database in async mode. This method is driven by streaming process. This method

oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/storage/PersistenceTimerTest.java

@@ -57,7 +57,7 @@ public class PersistenceTimerTest {
         moduleConfig.setPersistentPeriod(Integer.MAX_VALUE);
         IBatchDAO iBatchDAO = new IBatchDAO() {
             @Override
-            public void insert(InsertRequest prepareRequest) {
+            public void insert(InsertRequest insertRequest) {
 
             }
 

oap-server/server-storage-plugin/storage-elasticsearch-plugin/src/main/java/org/apache/skywalking/oap/server/storage/plugin/elasticsearch/base/BatchProcessEsDAO.java

@@ -47,12 +47,12 @@ public class BatchProcessEsDAO extends EsDAO implements IBatchDAO {
     }
 
     @Override
-    public void insert(InsertRequest prepareRequest) {
+    public void insert(InsertRequest insertRequest) {
         if (bulkProcessor == null) {
             this.bulkProcessor = getClient().createBulkProcessor(bulkActions, flushInterval, concurrentRequests);
         }
 
-        this.bulkProcessor.add((IndexRequest) prepareRequest);
+        this.bulkProcessor.add((IndexRequest) insertRequest);
     }
 
     @Override

oap-server/server-storage-plugin/storage-jdbc-hikaricp-plugin/src/main/java/org/apache/skywalking/oap/server/storage/plugin/jdbc/h2/dao/H2BatchDAO.java

@@ -81,8 +81,8 @@ public class H2BatchDAO implements IBatchDAO {
     }
 
     @Override
-    public void insert(InsertRequest prepareRequest) {
-        this.dataCarrier.produce(prepareRequest);
+    public void insert(InsertRequest insertRequest) {
+        this.dataCarrier.produce(insertRequest);
     }
 
     private class H2BatchConsumer implements IConsumer<PrepareRequest> {