print total size of moved folder size when rebalancing in debug mode

xtreemfs_client/OSDManager.py

@@ -233,6 +233,12 @@ class OSDManager(object):
             print("movements:")
             print(str(movements))
 
+            total_movement_size = 0
+            for folder_id in movements:
+                total_movement_size += self.distribution.get_folder_size(folder_id)
+
+            print("total movement size: " + str(total_movement_size))
+
             print("rebalanced osd manager: \n" + str(self))
 
         new_assignments = list(map(lambda key, value : (key, value[1]), list(movements.items())))

xtreemfs_client/dataDistribution.py

@@ -97,6 +97,11 @@ class DataDistribution(object):
                 return checked_osd
         return None
 
+    def get_folder_size(self, folder_id):
+        containing_osd = self.get_containing_osd(folder_id)
+        assert containing_osd is not None
+        return containing_osd.get_folder_size(folder_id)
+
     def assign_new_osd(self, folder_id, new_osd):
         """
         assign folder_id to new_osd. if folder_id already is assigned to an OSD, this old assignment is deleted.

xtreemfs_client/osd.py

@@ -56,6 +56,10 @@ class OSD(object):
     def get_processing_time(self):
         return self.total_folder_size / self.bandwidth
 
+    def get_folder_size(self, folder_id):
+        assert folder_id in self.folders
+        return self.folders[folder_id]
+
     def __str__(self):
         return "osd: '" + self.uuid \
                + "' totalFolderSize: " + str(self.total_folder_size) \