diff --git a/source/common/src/cos.c b/source/common/src/cos.c
index e54e7722e2..ea41afd8fb 100644
--- a/source/common/src/cos.c
+++ b/source/common/src/cos.c
@@ -267,9 +267,6 @@ typedef struct list_parts_callback_data {
 } list_parts_callback_data;
 
 typedef struct MultipartPartData {
-  char                     err_msg[512];
-  S3Status                 status;
-  uint64_t                 content_length;
   put_object_callback_data put_object_data;
   int                      seq;
   UploadManager           *manager;
@@ -277,11 +274,12 @@ typedef struct MultipartPartData {
 
 static int putObjectDataCallback(int bufferSize, char *buffer, void *callbackData) {
   put_object_callback_data *data = (put_object_callback_data *)callbackData;
+  /*
   if (data->infileFD == 0) {
     MultipartPartData *mpd = (MultipartPartData *)callbackData;
     data = &mpd->put_object_data;
   }
-
+  */
   int ret = 0;
 
   if (data->contentLength) {
@@ -582,9 +580,9 @@ int32_t s3PutObjectFromFile2(const char *file, const char *object) {
       do {
         S3_upload_part(&bucketContext, key, &putProperties, &putObjectHandler, seq, manager.upload_id,
                        partContentLength, 0, timeoutMsG, &partData);
-      } while (S3_status_is_retryable(partData.status) && should_retry());
-      if (partData.status != S3StatusOK) {
-        s3PrintError(__func__, partData.status, partData.err_msg);
+      } while (S3_status_is_retryable(partData.put_object_data.status) && should_retry());
+      if (partData.put_object_data.status != S3StatusOK) {
+        s3PrintError(__func__, partData.put_object_data.status, partData.put_object_data.err_msg);
         code = TAOS_SYSTEM_ERROR(EIO);
         goto clean;
       }