Why object expirer not replicating around cluster and not deleting files from Gluster volume ?

Issue

• Why object expirer not replicating around cluster and not deleting files from Gluster volume ?

• Why object expiration feature does not scale well as object expirer daemon times out ?

~snippet from logs,

Apr 13 14:56:33 swift-node object-expirer: Pass beginning; 2 possible containers; 0 possible objects
Apr 13 14:56:33 swift-node object-expirer: Unhandled exception: #012Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/swift/obj/expirer.py", line 110, in run_once#012    timestamp = int(container)#012ValueError: invalid literal for int() with base 10: '.glusterfs' (txn: )