Open Stack

Hi,

I am following intructions described at : http://swift.openstack.org/1.2/howto_installmultinode.html  in order to install openstack swift

when I reach the step of rebalancing ring ( at the end of configuring the proxy node) , after adding entries to rings,
and when I execute the command : 
swift-ring-builder account.builder rebalance
I have this error :


Traceback (most recent call last):
  File "/usr/bin/swift-ring-builder", line 571, in <module>
    Commands.__dict__.get(command, Commands.unknown)()
  File "/usr/bin/swift-ring-builder", line 443, in rebalance
    parts, balance = builder.rebalance()
  File "/usr/lib/pymodules/python2.6/swift/common/ring/builder.py", line 200, in rebalance
    self._initial_balance()
  File "/usr/lib/pymodules/python2.6/swift/common/ring/builder.py", line 351, in _initial_balance
    while available_devs[index]['zone'] in other_zones:
IndexError: list index out of range



can any one help me please to solve this problem

best regards
Khaled
 		 	   		  
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