diff --git a/.gitignore b/.gitignore
index 30c4fea..3c3e1a0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -71,3 +71,4 @@ application-local.yml
 frontend/node/
 frontend/node_modules/
 src/main/resources/static/
+logs/
diff --git a/src/main/resources/application-dev.yml b/src/main/resources/application-dev.yml
index fe56683..944e0b9 100644
--- a/src/main/resources/application-dev.yml
+++ b/src/main/resources/application-dev.yml
@@ -103,6 +103,8 @@ logging:
 # Custom Application Properties
 app:
   batch:
+    chunk-size: 10000
+    sub-chunk-size: 5000  # Writer Sub-Chunk 분할 크기
     api:
       url: https://api.example.com/data
       timeout: 30000