Major Description
the same issue and error for it was discussed in http://www.couchbase.com/issues/browse/MB-5228 ( environment issue?)
but it appeared again http://qa.hq.northscale.net/job/centos-64-2.0-view-tests/1041/consoleFull
[user:info] [2012-07-24 10:21:54] [ns_1@10.3.121.162:<0.268.1>:ns_orchestrator:handle_info:246] Rebalance exited with reason {detected_nodes_change,
{ns_node_disco_events,
['ns_1@10.3.121.162','ns_1@10.3.121.163',
'ns_1@10.3.121.164','ns_1@10.3.121.165',
'ns_1@10.3.121.166','ns_1@10.3.121.167',
'ns_1@10.3.121.168'],
['ns_1@10.3.121.162']}}