2014-06-18 10:41:43 | ERROR | MainProcess | Cluster_Thread | [task.execute] During query run (ddoc=test_view-ab78f03, query={'stale': 'false', 'connection_timeout': 60000}, server=172.23.106.132) error is: Error occured querying view test_view-ab78f03: {u'reason': u'{<<"{{timeout,{gen_server,call,[<0.8282.0>,{get_stats,<<\\"vbucket-seqno\\">>,12}]}},\\n {gen_server,call,[<0.8274.0>,get_data_size,infinity]}}">>,\n <<"{gen_server,call,\\n            [<0.8264.0>,\\n             {set_view_group_req,false,false,\\n                                 \\"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\\\\\\\]^_\\",false,\\n                                 main,prod},\\n             infinity]}">>}', u'from': u'http://172.23.106.134:8092/_view_merge/?stale=false'}{u'reason': u'{<<"{timeout,{gen_server,call,[<0.8333.0>,{get_stats,<<\\"vbucket-seqno\\">>,33}]}}">>,\n <<"{gen_server,call,\\n            [<0.8325.0>,\\n             {set_view_group_req,false,false,\\n                                 \\" !\\\\\\"#$%&\'()*+,-./0123456789:;<=>?\\",false,\\n                                 main,prod},\\n             infinity]}">>}', u'from': u'http://172.23.106.133:8092/_view_merge/?stale=false'}{u'reason': u'{{timeout,{gen_server,call,[<0.8528.0>,{get_stats,<<"vbucket-seqno">>,1}]}},\n {gen_server,call,\n             [<0.8519.0>,\n              {set_view_group_req,false,false,\n                                  [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,\n                                   17,18,19,20,21,22,23,24,25,26,27,28,29,30,\n                                   31],\n                                  false,main,prod},\n              infinity]}}', u'from': u'local'}

Another error:

Error occured querying view test_view-18b18d1: {u'reason': u'{badarg,\n    [{erlang,port_command,[#Port<0.11044>,[nil,10]],[]},\n     {couch_set_view_updater_helper,update_btrees,5,\n         [{file,\n              "/home/buildbot/centos-5-x64-300-builder/build/build/couchdb/src/couch_set_view/src/couch_set_view_updater_helper.erl"},\n          {line,170}]},\n     {couch_set_view_updater,update_btrees,1,\n         [{file,\n              "/home/buildbot/centos-5-x64-300-builder/build/build/couchdb/src/couch_set_view/src/couch_set_view_updater.erl"},\n          {line,1268}]},\n     {couch_set_view_updater,\'-spawn_updater_worker/2-fun-0-\',6,\n         [{file,\n              "/home/buildbot/centos-5-x64-300-builder/build/build/couchdb/src/couch_set_view/src/couch_set_view_updater.erl"},\n          {line,1208}]}]}', u'from': u'http://172.23.106.134:8092/_view_merge/?stale=false'}{u'reason': u'{badarg,\n    [{erlang,port_command,[#Port<0.11700>,[nil,10]],[]},\n     {couch_set_view_updater_helper,update_btrees,5,\n         [{file,\n              "/home/buildbot/centos-5-x64-300-builder/build/build/couchdb/src/couch_set_view/src/couch_set_view_updater_helper.erl"},\n          {line,170}]},\n     {couch_set_view_updater,update_btrees,1,\n         [{file,\n              "/home/buildbot/centos-5-x64-300-builder/build/build/couchdb/src/couch_set_view/src/couch_set_view_updater.erl"},\n          {line,1268}]},\n     {couch_set_view_updater,\'-spawn_updater_worker/2-fun-0-\',6,\n         [{file,\n              "/home/buildbot/centos-5-x64-300-builder/build/build/couchdb/src/couch_set_view/src/couch_set_view_updater.erl"},\n          {line,1208}]}]}', u'from': u'local'}{u'reason': u'{timeout,{gen_server,call,\n                     [<0.10557.0>,{add_stream,60,85215373647241,418,632,0}]}}', u'from': u'http://172.23.106.133:8092/_view_merge/?stale=false'}