验证ssh库的缺省配置能获得多少数据？

ssh_test.erl

-module(ssh_test).
-export([go/0]).

go() ->
    ssh:start(),
    Host = "127.0.0.1",
    Port = 22,
    Options = [{user,"john"},
               {silently_accept_hosts, true},
               {user_interaction, false},
               {connect_timeout, 2000}
              ],
    Cmd = "/home/john/test.rb",
    {ok, Conn} = ssh:connect(Host, Port, Options),
    {ok, Chl} = ssh_connection:session_channel(Conn, infinity),
    success = ssh_connection:exec(Conn,Chl,Cmd,infinity),
    get_result(Conn,Chl).

get_result(Conn,Chl) ->
    receive
        {ssh_cm, Conn, {closed,Chl}} ->
            io:format("closed~n");
        {ssh_cm, Conn, {exit_signal, Chl, _ExitSignal, _ErrMsg, _Lang}} ->
            io:format("exit_signal~n"),  
            get_result(Conn,Chl);
        {ssh_cm, Conn, {data, Chl, _Type_code, Data}} ->
            io:format("Data: ~ts", [Data]),  
            get_result(Conn,Chl);
        {ssh_cm, Conn, {exit_status, Chl, _ExitStatus}} ->
            io:format("exit~n"),  
            get_result(Conn,Chl);
        {ssh_cm, Conn, {eof,Chl}} ->
            io:format("eof~n"),  
            get_result(Conn,Chl)
    end.

test.rb

#!/usr/bin/env ruby

$stdout.sync = true
1000.times do |i|
  puts "#{i}: #{'hello' * 100}"
  sleep(rand/2)
end

执行结果
......
Data: 128: hellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohello
Data: 129: hellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohellohe #在这里就卡住了