try out 3

xtreemfs_client/OSDManager.py

@@ -190,8 +190,10 @@ class OSDManager(object):
 
         if remote_source is not None:
             shutil.rmtree(sshfs_mount_dir)
+        if self.debug:
+            print("OSDManager: random_osd_assignment: " + str(random_osd_assignment))
 
-        new_assignments = self.distribution.add_folders(new_folders, random_osd_assignment)
+        new_assignments = self.distribution.add_folders(new_folders, random_osd_assignment=random_osd_assignment)
         if apply_layout:
             self.apply_osd_assignments(new_assignments)
         elif self.debug:

xtreemfs_client/dataDistribution.py

@@ -80,6 +80,8 @@ class DataDistribution(object):
             else:
                 new_folders.append(folder)
 
+        print("dataDistribution: random_osd_assignment: " + str(random_osd_assignment)) 
+
         osds_for_new_folders = []
 
         # totally random OSD assignment, even ignoring OSD capacities
@@ -88,7 +90,7 @@ class DataDistribution(object):
             print("using random osd assignment")
             for folder in new_folders:
                 osds_for_new_folders.append((folder.id,
-                                             random.choice(self.OSDs.values())))
+                                             random.choice(list(self.OSDs.values()))))
             return osds_for_new_folders
 
         # balanced deterministic OSD assignment