[System Test]: Server error during processing /controller/startGracefulFailover

[2018-06-20T23:21:00-07:00, sequoiatools/couchbase-cli:46f295] failover -c 172.23.96.206:8091 --server-failover 172.23.96.210:8091 -u Administrator -p password

ERROR: Internal server error, please retry your request

[ns_server:error,2018-06-20T23:21:05.843-07:00,ns_1@172.23.96.206:<0.32550.276>:menelaus_web:loop:143]Server error during processing: ["web request failed",

{path,"/controller/startGracefulFailover"},

{method,'POST'},

{type,exit},

{what,

{timeout,

{gen_fsm,sync_send_event,

[{via,leader_registry,ns_orchestrator},

{start_graceful_failover,

'ns_1@172.23.96.210'}]}}},

{trace,

[{gen_fsm,sync_send_event,2,

[{file,"gen_fsm.erl"},{line,206}]},

{menelaus_web_cluster,

handle_start_graceful_failover,1,

[{file,"src/menelaus_web_cluster.erl"},

{line,677}]},

{request_throttler,do_request,3,

[{file,"src/request_throttler.erl"},

{line,59}]},

{menelaus_web,loop,2,

[{file,"src/menelaus_web.erl"},

{line,121}]},

{mochiweb_http,headers,5,

[{file,

"/home/couchbase/jenkins/workspace/couchbase-server-unix/couchdb/src/mochiweb/mochiweb_http.erl"},

{line,94}]},

{proc_lib,init_p_do_apply,3,

[{file,"proc_lib.erl"},{line,239}]}]}]