[erlang-questions] Questions about OTP debugging...
Tue Feb 1 10:32:04 CET 2011
Perhaps my tutorial from the Erlang User Conference will help you out:
On 01/02/2011 00:17, Peter W. Morreale wrote:
> I'm new to Erlang and OTP and have some general questions about
> debugging. I'm learning erland and otp with the books: Programming
> Erlang" and "Erlang and OTP".
> Currently I'm working on the "tcp_rpc" example in the OTP book. I have
> the tr_server module written and working according to the example in the
> book. Now I'm trying to add a supervisor and application to create a
> complete OTP application.
> At the moment I have all the source created and compiled, as referenced
> by the code in the book. When I attempt to start the application, I get
> the following:
> :~/erlang> cd rpc
> :~/erlang/rpc> erl -pa ebin
> Erlang R14B (erts-5.8.1) [source] [64-bit] [smp:2:2] [rq:2]
> [async-threads:0] [hipe] [kernel-poll:false]
> Eshell V5.8.1 (abort with ^G)
> 1> application:start(tcp_rpc).
> The question is how to debug this? Please note that I'm less interested
> in getting this app to work, than to learn debugging strategies related
> to erlang and OTP.
> Is there some flag/etc available to turn on logging or tracing?
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