diff --git a/deps/oblib/src/lib/utility/ob_print_utils.cpp b/deps/oblib/src/lib/utility/ob_print_utils.cpp
index 0174906176..7f79ae9296 100644
--- a/deps/oblib/src/lib/utility/ob_print_utils.cpp
+++ b/deps/oblib/src/lib/utility/ob_print_utils.cpp
@@ -52,6 +52,21 @@ int hex_to_cstr(const void *in_data,
                 const int64_t buff_size)
 {
   int ret = OB_SUCCESS;
+  int64_t pos = 0;
+  if (OB_FAIL(hex_to_cstr(in_data, data_length, buff, buff_size, pos))) {
+    LOG_WARN("fail to hex to cstr", K(ret), K(in_data));
+  }
+  return ret;
+}
+
+int hex_to_cstr(const void *in_data,
+                const int64_t data_length,
+                char *buff,
+                const int64_t buff_size,
+                int64_t &pos)
+{
+  int ret = OB_SUCCESS;
+  pos = 0;
   if (OB_ISNULL(in_data) || 0 != data_length % 2
       || OB_ISNULL(buff) || buff_size < data_length / 2 + 1) {
     ret = OB_INVALID_ARGUMENT;
@@ -69,6 +84,7 @@ int hex_to_cstr(const void *in_data,
     }
   }
   if (OB_SUCC(ret)) {
+    pos = data_length / 2;
     buff[data_length / 2] = '\0';
   }
   return ret;
diff --git a/deps/oblib/src/lib/utility/ob_print_utils.h b/deps/oblib/src/lib/utility/ob_print_utils.h
index 674eac5d09..5e4cc77f78 100644
--- a/deps/oblib/src/lib/utility/ob_print_utils.h
+++ b/deps/oblib/src/lib/utility/ob_print_utils.h
@@ -43,6 +43,11 @@ int hex_to_cstr(const void *in_data,
                 const int64_t data_lenth,
                 char *buff,
                 const int64_t buff_size);
+int hex_to_cstr(const void *in_data,
+                const int64_t data_length,
+                char *buff,
+                const int64_t buff_size,
+                int64_t &pos);
 /**
  * convert the input buffer into hex string,  not include '\0'
  *
diff --git a/src/share/backup/ob_backup_struct.cpp b/src/share/backup/ob_backup_struct.cpp
index 77831e1b54..f1059c018b 100644
--- a/src/share/backup/ob_backup_struct.cpp
+++ b/src/share/backup/ob_backup_struct.cpp
@@ -1310,7 +1310,7 @@ int ObBackupStorageInfo::parse_authorization_(const char *authorization)
         }
       } else if (0 == strncmp(ACCESS_KEY, token, strlen(ACCESS_KEY))) {
         if (OB_FAIL(set_storage_info_field_(token, access_key_, sizeof(access_key_)))) {
-          LOG_WARN("failed to set access id", K(ret), K(token));
+          LOG_WARN("failed to set access key", K(ret), K(token));
         }
       } else {
         ret = OB_INVALID_ARGUMENT;