diff --git a/elkSyncer/Dockerfile b/elkSyncer/Dockerfile
index 2e38c176a..1eda3d163 100644
--- a/elkSyncer/Dockerfile
+++ b/elkSyncer/Dockerfile
@@ -7,6 +7,9 @@ RUN pip install mongo-connector==3.1.1 \
     && pip install elastic2-doc-manager==1.0.0 \
     && pip install python-dotenv==0.11.0
 
-COPY . .
+RUN mkdir /var/log/mongo-connector
 
-CMD ["python", "main.py"]
+COPY mongo-connector-config.json .
+COPY main.py .
+
+CMD ["python", "main.py"]
\ No newline at end of file
diff --git a/elkSyncer/mongo-connector-config.json b/elkSyncer/mongo-connector-config.json
index b31740525..5559a15be 100644
--- a/elkSyncer/mongo-connector-config.json
+++ b/elkSyncer/mongo-connector-config.json
@@ -1,7 +1,7 @@
 {
-    "oplogFile": "oplog.timestamp",
+    "oplogFile": "/var/log/mongo-connector/oplog.timestamp",
     "noDump": false,
-    "batchSize": 50,
+    "batchSize": 5000,
     "verbosity": 3,
     "continueOnError": true,
     "logging": {
diff --git a/src/data/utils.ts b/src/data/utils.ts
index 86e344aa2..e659e1417 100644
--- a/src/data/utils.ts
+++ b/src/data/utils.ts
@@ -40,21 +40,11 @@ export const checkFile = async (file, source?: string) => {
     return 'Invalid file type';
   }
 
-  const defaultMimeTypes = [
-    'image/png',
-    'image/jpeg',
-    'image/jpg',
-    'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
-    'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
-    'application/pdf',
-    'image/gif',
-  ];
-
   const UPLOAD_FILE_TYPES = await getConfig(source === 'widgets' ? 'WIDGETS_UPLOAD_FILE_TYPES' : 'UPLOAD_FILE_TYPES');
 
   const { mime } = ft;
 
-  if (!((UPLOAD_FILE_TYPES && UPLOAD_FILE_TYPES.split(',')) || defaultMimeTypes).includes(mime)) {
+  if (UPLOAD_FILE_TYPES && !UPLOAD_FILE_TYPES.split(',').includes(mime)) {
     return 'Invalid configured file type';
   }