[erlang-questions] erlang gen_tcp:connect/3 not working with rpc:call/4, anyone knows why?

Allen Kim <>
Wed Sep 21 17:55:32 CEST 2011


Is it environmental issue?
I see the same error on my Mac OS X laptop.

~/open_source/EMG/loadtesterl$ssh   'erl -name
 -detached -setcookie loadtest'
~/open_source/EMG/loadtesterl$erl -name  -setcookie loadtest
Erlang R14B03 (erts-5.8.4) [source] [64-bit] [smp:2:2] [rq:2]
[async-threads:0] [hipe] [kernel-poll:false]

Eshell V5.8.4  (abort with ^G)
()1> gen_tcp:connect("www.google.com",80,[]).
{ok,#Port<0.617>}
()2> net_adm:ping('').
pong
()3>
rpc:call('',gen_tcp,connect,["www.google.com",80,[]]).
{error,nxdomain}
()4> nodes().
['']









On 11-09-21 11:20 AM, "Kaiduan Xie" <> wrote:

>()6> net_adm:ping('').
>pong
>()7> nodes().
>['']
>()8> rpc:call('', gen_tcp,
>connect, ["www.google.com", 80, []]).
>{ok,#Port<5752.374>}
>
>You need to connect the node first.
>
>/Kaiduan
>On Wed, Sep 21, 2011 at 10:43 AM, Allen Kim <> wrote:
>> Hi,
>>
>> Could not solve this by myself
>>
>> launched a new node A with ssh command
>> started a new node B
>> gen_tcp:connect/3 works on B, but rpc:call(B,gen_tcp,connect,Params) not
>> works.
>>
>> Both nodes are running on local laptop
>>
>> and one node returns ok and the other node returns error.
>>
>> I don't understand.
>>
>> Anyone knows why?
>>
>> ~ $ssh   'erl -name  -detached
>>-setcookie
>> loadtest'
>> ~ $erl -name  -setcookie loadtest
>> Erlang R14B03 (erts-5.8.4) [source] [64-bit] [smp:2:2] [rq:2]
>> [async-threads:0] [hipe] [kernel-poll:false]
>> Eshell V5.8.4  (abort with ^G)
>> ()1> gen_tcp:connect("www.google.com",80,[]).
>> {ok,#Port<0.630>}
>> ()2>
>> rpc:call('',gen_tcp,connect,["www.google.com",80,[]]).
>> {error,nxdomain}
>>
>> _______________________________________________
>> erlang-questions mailing list
>> 
>> http://erlang.org/mailman/listinfo/erlang-questions
>>
>>




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