erlang's global naming facility apparently drops globally registered service with actual service still alive (was: impossible to change settings/autoFailover after rebalance)

build
./testrunner -i resources/jenkins/centos-64-5node-failover.ini get-logs=True -t autofailovertests.AutoFailoverTests.test_enable,replicas=2,keys-count=1000000,num-buckets=2
http://qa.hq.northscale.net/job/centos-64-2.0-failover-tests/480/consoleFull

test changes settings/autoFailover after rebalance

test logs:

2012-11-27 22:29:42,105 - INFO - MainProcess:MainThread - rest_client:_rebalance_progress - rebalance percentage : 99.5678770149 %
2012-11-27 22:29:44,114 - INFO - MainProcess:MainThread - rest_client:_rebalance_progress - rebalance percentage : 99.6821896236 %
2012-11-27 22:29:48,134 - INFO - MainProcess:MainThread - rest_client:monitorRebalance - rebalance progress took 1111.69762397 seconds
2012-11-27 22:29:48,135 - INFO - MainProcess:MainThread - rest_client:monitorRebalance - sleep for 10 seconds after rebalance...
2012-11-27 22:29:58,133 - INFO - MainProcess:MainThread - rest_client:update_autofailover_settings - settings/autoFailover params : enabled=true&timeout=30
2012-11-27 22:29:58,140 - ERROR - MainProcess:MainThread - rest_client:_http_request - http://10.1.3.114:8091/settings/autoFailover error 500 reason: unknown ["Unexpected server error, request logged."]

server logs:

[menelaus:warn,2012-11-27T22:53:28.404,ns_1@10.1.3.114:<0.21541.23>:menelaus_web:loop:430]Server error during processing: ["web request failed",

{path,"/settings/autoFailover"}

,

{type,exit}

,
{what,
{noproc,
{gen_server,call,
[

{global,auto_failover}

,

{enable_auto_failover,30,1}

]}}},
{trace,
[

{gen_server,call,2}

,

{menelaus_web, handle_settings_auto_failover_post,1}

,

{menelaus_web,loop,3}

,

{mochiweb_http,headers,5}

,

{proc_lib,init_p_do_apply,3}

]}]

Alk, if we have to handle the error and retry again, please assign the ticket back to me