remove unnecessary step in external layout realization for slurm mode

xtreemfs_client/OSDManager.py

@@ -336,7 +336,6 @@ class OSDManager(object):
         command_list = []
 
         host_name = ""
-        # command = ""
         for key in osd_to_folders_map.keys():
             if host_name == "":
                 host_name = osd_to_host_map[key]
@@ -344,20 +343,20 @@ class OSDManager(object):
             for move_folder in osd_to_folders_map[key]:
                 folder_path = self.get_absolute_file_path(move_folder)
                 folder_tmp_path = os.path.join(tmp_dir, os.path.split(move_folder)[1])
-                # copy folder to temporary location
+
+                # move folder to temporary location
                 command += "srun -N1-1 --nodelist=" + host_name
-                command += " cp -r  " + folder_path + " " + tmp_dir + " ; "
-                # delete folder within the managed xtreemfs folder
+                command += " mv " + folder_path + " " + tmp_dir + " ; "
+                # copy folder back from temporary location to initial location
                 command += "srun -N1-1 --nodelist=" + host_name
-                command += " rm -r " + folder_path + " ; "
-                # copy folder back from temporary location
                 command += " cp -r " + folder_tmp_path + " " + os.path.split(folder_path)[0] + " ; "
                 # delete folder from temporary location
                 command += "srun -N1-1 --nodelist=" + host_name
                 command += " rm -r " + folder_tmp_path + " ; "
-            if len(osd_to_folders_map[key]) > 0:
+
+            if len(command) > 0:
                 command_list.append(command)
-        # command_list.append(command)
+
         return command_list
 
     def move_folder_to_osd(self, folder_id: str, new_osd_id: str, tmp_dir=None):