Initiator node stops responding while deleting/recreating bucket

Initiator node stops responding while deleting/recreating bucket in test execution.

Seeing below errors in the log:

[stats:error] [2012-08-10 12:11:38] [ns_1@10.3.121.162:<0.13028.5>:stats_reader:log_bad_responses:191] Some nodes didn't respond: ['ns_1@10.3.121.162']
[stats:error] [2012-08-10 12:11:38] [ns_1@10.3.121.162:<0.13043.5>:stats_reader:log_bad_responses:191] Some nodes didn't respond: ['ns_1@10.3.121.162']
[ns_server:info] [2012-08-10 12:11:39] [ns_1@10.3.121.162:<0.11214.5>:ns_port_server:log:169] moxi<0.11214.5>: 2012-08-10 12:11:40: (agent_config.c.705) ERROR: bad JSON configuration from http://127.0.0.1:8091/pools/default/saslBucketsStreaming: Number of vBuckets must be a power of two > 0 and <= 65536 ({

[menelaus:info] [2012-08-10 12:11:38] [ns_1@10.3.121.162:<0.13020.5>:menelaus_web_buckets:do_bucket_create:354] Created bucket "default" of type: membase
[

{num_replicas,1}

,

{replica_index,true}

,

{ram_quota,1526726656}

,

{auth_type,sasl}

]
[ns_server:debug] [2012-08-10 12:11:38] [ns_1@10.3.121.162:ns_config_rep:ns_config_rep:do_push_keys:317] Replicating some config keys ([buckets]..)
[ns_server:debug] [2012-08-10 12:11:38] [ns_1@10.3.121.162:<0.18788.5>:ns_janitor:cleanup_with_membase_bucket_check_servers:46] janitor decided to update servers list
[ns_server:debug] [2012-08-10 12:11:38] [ns_1@10.3.121.162:ns_config_rep:ns_config_rep:do_push_keys:317] Replicating some config keys ([buckets]..)
[ns_server:debug] [2012-08-10 12:11:38] [ns_1@10.3.121.162:<0.18792.5>:janitor_agent:new_style_query_vbucket_states_loop:105] Exception from query_vbucket_states of "default":'ns_1@10.3.121.162'
{'EXIT',{noproc,{gen_server,call,
[

{'janitor_agent-default','ns_1@10.3.121.162'}

,
query_vbucket_states,infinity]}}}

Diagnostics are attached.