Fix bugs in hdfs download

python/paddle/distributed/fleet/__init__.py

@@ -29,6 +29,7 @@ __all__ = [
 ]
 
 fleet = Fleet()
+_role_maker_ = fleet._role_maker_
 init = fleet.init
 is_first_worker = fleet.is_first_worker
 worker_index = fleet.worker_index

python/paddle/distributed/fleet/base/fleet_base.py

@@ -190,6 +190,9 @@ class Fleet(object):
             else:
                 paddle.distributed.init_parallel_env()
 
+    def _role_maker_(self):
+        return self._role_maker
+
     def is_first_worker(self):
         """
         Check whether the node is the first instance of worker.

python/paddle/distributed/fleet/utils/fs.py

@@ -751,9 +751,6 @@ class HDFSClient(FS):
                 client = HDFSClient(hadoop_home, configs)
                 client.download("hdfs:/test_hdfs_client", "./")
         """
-        if self.is_exist(local_path):
-            raise FSFileExistsError("{} exists".format(local_path))
-
         if not self.is_exist(fs_path):
             raise FSFileNotExistsError("{} not exits".format(fs_path))