unable to join a cluster

two newly build membase 1.7.1 from source, os: suse

master: 10.154.11.126
run memserver command to join cluster, i got error on master server:

./membase server-add -c 10.154.11.126:8091 -u Administrator -p somepassword --server-add=10.154.0.53:8091

Server error during processing: ["web request failed",
{path,"/controller/addNode"},
{type,exit},
{what,
{{undef,
[{http,request,
[post,
{"http://10.154.0.53:8091/engageCluster2",
[{"Authorization","Basic Og=="}],
"application/json",
"{\"availableStorage\":{\"hdd\":[{\"path\":\"/\",\"sizeKBytes\":10325748,\"usagePercent\":18},{\"path\":\"/dev\",\"sizeKBytes\":15360072,\"usagePercent\":1},{\"path\":\"/usr/local\",\"sizeKBytes\":6174820,\"usagePercent\":13},{\"path\":\"/data\",\"sizeKBytes\":84634104,\"usagePercent\":11}]},\"memoryQuota\":20000,\"storageTotals\":{\"ram\":{\"usedByData\":18877993066.0,\"total\":31457427456.0,\"quotaTotal\":20971520000.0,\"used\":30054612992.0},\"hdd\":{\"usedByData\":7242931696.0,\"total\":86665322496.0,\"quotaTotal\":86665322496.0,\"used\":9533185474.0,\"free\":77132137022.0}},\"storage\":{\"ssd\":[],\"hdd\":[{\"path\":\"/data/home/app11563/membase/membase-server_src/install/var/lib/membase/data\",\"quotaMb\":\"none\",\"state\":\"ok\"}]},\"systemStats\":{\"cpu_utilization_rate\":0,\"swap_total\":0,\"swap_used\":0},\"interestingStats\":{\"curr_items\":146648971,\"curr_items_tot\":146648971,\"vb_replica_curr_items\":0},\"uptime\":\"4321\",\"memoryTotal\":31457427456.0,\"memoryFree\":1402814464,\"mcdMemoryReserved\":24000,\"mcdMemoryAllocated\":24000,\"otpNode\":\"ns_1@10.154.11.126\",\"otpCookie\":\"hcktohdgrzpxmkvz\",\"clusterMembership\":\"active\",\"status\":\"healthy\",\"hostname\":\"10.154.11.126:8091\",\"clusterCompatibility\":1,\"version\":\"\",\"os\":\"x86_64-unknown-linux-gnu\",\"ports\":{\"proxy\":11211,\"direct\":11210}}"},
[{timeout,30000},
{connect_timeout,30000}],
[]],
[]},
{menelaus_rest,json_request_hilevel,3,
[{file,"src/menelaus_rest.erl"},
{line,82}]},
{ns_cluster,
do_add_node_with_connectivity,3,
[{file,"src/ns_cluster.erl"},
{line,293}]},
{ns_cluster,handle_call,3,
[{file,"src/ns_cluster.erl"},{line,91}]},
{gen_server,handle_msg,5,
[{file,"gen_server.erl"},{line,578}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,227}]}]},
{gen_server,call,
[ns_cluster,
{add_node,"10.154.0.53",8091,{[],[]}},
30000]}}},
{trace,
[{gen_server,call,3,
[{file,"gen_server.erl"},{line,188}]},
{ns_cluster,add_node,3,
[{file,"src/ns_cluster.erl"},{line,58}]},
{menelaus_web,handle_add_node,1,
[{file,"src/menelaus_web.erl"},
{line,1364}]},
{menelaus_web,loop,3,
[{file,"src/menelaus_web.erl"},
{line,303}]},
{mochiweb_http,headers,5,
[{file,"src/mochiweb_http.erl"},
{line,133}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,227}]}]}]