[erlang-questions] Cluster Functional test using Slave Nodes

marcos quesada <>
Wed Aug 20 16:05:07 CEST 2014


Hi there!

 Sorry about the delay, summertime....

 I've tests *to append or substitute -pa to -pz*, without any positive
results, if i've check which paths are loaded, using: code:get_path().
there's no difference between pa or pz, as a result,still getting the same
error:

   {value,
         {badrpc,
             {'EXIT',
            *     {undef,*
*                     [{cluster,join,[...],...},*
*                      {rpc,'-handle_call_call/6-fun-0-',...}]}}}}]}*

Anyone coould give me any clue?
If i'm not worng, this error is answering that join function is undefined
on cluster module, as you see all those methods are exported, in fact, if
join wasn't exported * cluster_test:cluster_formation() * will ever fail.


-export([start/0, stop/0, join/1, leave/0, status/0, get_ring/0,
get_timestamp/0]).
-export([ping/1, get/1, set/2, register/2]).


Thank you!



2014-08-04 23:51 GMT+02:00 T Ty <>:

> -pa adds to front of the path. -pz to the end of the path.
>
>
> On Mon, Aug 4, 2014 at 4:14 PM, marcos quesada <>
> wrote:
>
>> Nop, didn't find it. Maybe i'm missing something, but I think that slaves
>> nodes are getting right the path to find all required beams. All slaves are
>> initialized using:
>> Args = " -pa apps/*/ebin deps/*/ebin -setcookie secret -rsh ssh",
>>  In fact when I execute cluster_test:cluster_formation() works fine.
>>
>> What's the difference to use -pz from -pa?
>>
>>  Thank you!
>>
>> El lunes, 4 de agosto de 2014 03:01:06 UTC+2, Scott Lystig Fritchie
>>  escribió:
>> > marcos quesada <> wrote:
>> >
>> >
>> >
>> > mq> **error:{assertEqual_failed,
>> >
>> > mq>     [{module,cluster_test},
>> >
>> > mq>      {line,43},
>> >
>> > mq>      {expression,"Result1"},
>> >
>> > mq>      {expected,ok},
>> >
>> > mq>      {value,
>> >
>> > mq>          {badrpc,
>> >
>> > mq>              {'EXIT',
>> >
>> > mq>                  {undef,
>> >
>> > mq>                      [{cluster,join,[...],...},
>> >
>> > mq>                       {rpc,'-handle_call_call/6-fun-0-',...}]}}}}]}
>> >
>> >
>> >
>> > Have you found the cause of this error?  If I had to guess, the slave
>> >
>> > node's code_server doesn't know the path to your cluster.beam module.
>> >
>> > If that's true, then appending ["-pz", PathToYourModule] to the Args
>> >
>> > list of slave:start/3 can correct it.
>> >
>> >
>> >
>> > -Scott
>> >
>> > _______________________________________________
>> >
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>> >
>> > 
>> >
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>>
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