Rebalance web request failed


#1

i have six nodes to create a cluster, i use web console to rebalance the cluster, and it show me web request failed error ; the log content is :

Server error during processing: [“web request failed”,
{path,"/controller/rebalance"},
{type,exit},
{what,
{noproc,
{gen_fsm,sync_send_all_state_event,
[{global,ns_orchestrator},
{maybe_start_rebalance,
[‘ns_1@...’,
‘ns_1@...’,
‘ns_1@...’,
‘ns_1@...’,
‘ns_1@...’,
‘ns_1@...’],
[]}]}}},
{trace,
[{gen_fsm,sync_send_all_state_event,2},
{menelaus_web,do_handle_rebalance,3},
{request_throttler,do_request,3},
{menelaus_web,loop,3},
{mochiweb_http,headers,5},
{proc_lib,init_p_do_apply,3}]}]

how can i know what is problem is it?