memcached core : #0 getVBucketId Rebalance failing with "Rebalance exited with reason {exited, {'EXIT',<0.10527.10>" .. {badmatch,{error,timeout} "

Setup
1. Setup a large cluster(14 nodes) with around 22M data cluster [10.3.121.206]
2. Added 2 nodes on the cluster (224, 214) [Did a bunch of fail-overs, rebalance in/outs on this cluster prior to this]
3. Rebalance-In the cluster

The clusteris accessible in its current state @ http://10.3.121.228:8091/index.html#sec=log

Output
1. Rebalance fails as
Rebalance exited with reason {exited,
{'EXIT',<0.10527.10>,
{badmatch,{error,timeout,
[

{mc_client_binary,stats_recv,4}, {mc_client_binary,stats,4}, {ns_memcached,do_handle_call,3}, {ns_memcached,handle_call,3}, {gen_server,handle_msg,5}, {proc_lib,init_p_do_apply,3}]},
{gen_server,call,
[{'ns_memcached-default','ns_1@10.3.121.230'}, {stats,<<"tap">>},
30000]}}}}
ns_orchestrator002 ns_1@10.3.121.206 20:46:48 - Wed May 23, 2012
<0.10526.10> exited with {exited,
{'EXIT',<0.10527.10>,
{badmatch,{error,timeout,
[{mc_client_binary,stats_recv,4}

,

{mc_client_binary,stats,4}

,

{ns_memcached,do_handle_call,3}

,

{ns_memcached,handle_call,3}

,

{gen_server,handle_msg,5}

,

{proc_lib,init_p_do_apply,3}

]},
{gen_server,call,
[

{'ns_memcached-default','ns_1@10.3.121.230'}

,

{stats,<<"tap">>}

,
30000]}}}}

Attached the logs at https://s3.amazonaws.com/bugdb/jira/MB-5370/log_4.tar