集群连接出现这个错误提示500 NODE_DOWN: bad rpc call ‘mqtt@10.20.14.16’, Reason {badrpc, {‘EXIT’, {undef, [{emqx_mgmt_api,do_query, [‘mqtt@10.20.14.16’, #{complete => false, fuzzy_fun => undefined, limit => 100, match_spec => [{‘$1’,,[‘$1’]}], msfun => fun emqx_mgmt_api_alarms:qs2ms/2, options => #{},page => 1, qs => {,}, table => emqx_activated_alarm, total => #{}}], }]}}}
