Failure to open view group when rebalance is ongoing

There are many other bugs around the same area, but they seem to be timeout related.

Not completely sure, if this is same as them. Filing for being safe.
http://www.couchbase.com/issues/browse/MB-6284
http://www.couchbase.com/issues/browse/MB-5978


[rebalance:debug,2012-08-24T15:35:58.601,ns_1@10.3.3.123:<0.151.24>:janitor_agent:bulk_set_vbucket_state:374]bulk vbucket state change failed for:
[{'ns_1@10.3.3.120',
     {'EXIT',
         {killed,
             {gen_server,call,
                 [{'janitor_agent-default','ns_1@10.3.3.120'},
                  {if_rebalance,<0.32709.23>,
                      {update_vbucket_state,70,replica,undefined,undefined}},
                  infinity]}}}}]



[error_logger:error,2012-08-24T15:35:58.829,ns_1@10.3.3.123:error_logger:ale_error_logger_handler:log_report:72]
=========================CRASH REPORT=========================
  crasher:
    initial call: ns_vbucket_mover:init/1
    pid: <0.32709.23>
    registered_name: []
    exception exit: {{bulk_set_vbucket_state_failed,
                      [{'ns_1@10.3.3.123',
                        {'EXIT',
                         {killed,
                          {gen_server,call,
                           [{'janitor_agent-default','ns_1@10.3.3.123'},
                            {if_rebalance,<0.32709.23>,
                             {update_vbucket_state,0,replica,undefined,
                              'ns_1@10.3.3.120'}},
                            infinity]}}}}]},
                     [{janitor_agent,bulk_set_vbucket_state,4},
                      {ns_vbucket_mover,update_replication_post_move,3},
                      {ns_vbucket_mover,handle_info,2},
                      {gen_server,handle_msg,5},
                      {proc_lib,init_p_do_apply,3}]}
      in function gen_server:terminate/6
    ancestors: [<0.32629.23>]
    messages: [{'EXIT',<0.32716.23>,normal},
                  {'EXIT',<0.151.24>,
                   {bulk_set_vbucket_state_failed,
                    [{'ns_1@10.3.3.120',
                      {'EXIT',
                       {killed,
                        {gen_server,call,
                         [{'janitor_agent-default','ns_1@10.3.3.120'},
                          {if_rebalance,<0.32709.23>,
                           {update_vbucket_state,70,replica,undefined,
                            undefined}},
                          infinity]}}}}]}},
                  {'EXIT',<0.98.24>,
                   {killed,
                    {gen_server,call,
                     [{'janitor_agent-default','ns_1@10.3.3.120'},
                      {if_rebalance,<0.32709.23>,
                       {update_vbucket_state,53,active,undefined,undefined}},
                      infinity]}}}]
    links: [<0.32629.23>,<0.32714.23>,<0.62.0>]
    dictionary: [{bucket_name,"default"},
                  {i_am_master_mover,true},
                  {child_processes,[<0.151.24>,<0.98.24>,<0.32718.23>,
                                    <0.32717.23>,<0.32716.23>]}]