samples/dubboerl_demo/config/sys.config

[
    {dubboerl_demo, []},
    {dubboerl,[
        {registry,true},
        {zookeeper_list,[{"127.0.0.1",2181}]},
        {application,<<"dubboerl_demo">>},
        {protocol,hessian},
        {port,20881},
        {consumer,[
            {<<"org.apache.dubbo.erlang.sample.service.facade.UserOperator">>,[]}
        ]},
        {provider,[
        ]}

    ]},
    {lager, [
        {log_root, "./logs"},
        {handlers, [
            {lager_console_backend, debug},
            {lager_file_backend, [{file, "error.log"}, {level, error}]},
            {lager_file_backend, [{file, "console.log"}, {level, debug}]}
        ]}
    ]}
].