Rebalance is stuck couchbase 4.1

Please help couch base server has stuck on re balance. we have 3 nodes and i have attached the logs for analyzing.

==============================================================================
[ns_doctor:error,2015-08-28T16:52:50.534,ns_1@172.168.1.53:ns_log<0.1542.0>:ns_doctor:get_node:189]Error attempting to get node ‘ns_1@172.168.1.33’: {exit,
{noproc,
{gen_server,call,
[ns_doctor,
{get_node,
‘ns_1@172.168.1.33’}]}}}
[ns_server:error,2015-08-31T15:47:54.296,ns_1@172.168.1.53:compaction_new_daemon<0.463.0>:compaction_new_daemon:log_compactors_exit:1303]Compactor <0.474.0> exited unexpectedly: {noproc,
{gen_server,call,
[{‘ns_memcached-ObjectStoreBucket’,
‘ns_1@172.168.1.53’},
{raw_stats,<<“diskinfo”>>,
#Fun<compaction_new_daemon.18.43740339>,
{<<“0”>>,<<“0”>>}},
180000]}}. Moving to the next bucket.
[ns_server:error,2015-08-31T15:47:54.298,ns_1@172.168.1.53:compaction_new_daemon<0.463.0>:compaction_new_daemon:log_compactors_exit:1303]Compactor <0.480.0> exited unexpectedly: {noproc,
{gen_server,call,
[{‘ns_memcached-default’,
‘ns_1@172.168.1.53’},
{raw_stats,<<“diskinfo”>>,
#Fun<compaction_new_daemon.18.43740339>,
{<<“0”>>,<<“0”>>}},
180000]}}. Moving to the next bucket.
[ns_server:error,2015-09-10T16:34:05.792,ns_1@172.168.1.53:ns_doctor<0.331.0>:ns_doctor:update_status:229]The following buckets became not ready on node ‘ns_1@172.168.1.13’: [“ObjectStoreBucket”,
“ScheduledObjects”,
“UploadedObjects”,
“default”], those of them are active [“ObjectStoreBucket”,
“ScheduledObjects”,
“UploadedObjects”,