[erlang-questions] How to debug erlang

[Garrett Smith]

I suggest getting into the habit of using tracing. It's one of
Erlang's game changing features.

In a pinch, print to stdout. But once you become proficient at
tracing, it's very fast.

I've been doing a lot Python programming lately (machine learning) and
miss the ability to observe a program without a) modifying it or b)
tediously stepping through code.

I haven't use this but based on the author I already know it's excellent :)

https://ferd.github.io/recon/recon_trace.html

Perhaps there are others folks can recommend. I personally found the
built-in dbg interface quite complex and wrote something for e2.

Garrett


On Wed, Jun 19, 2019 at 9:25 AM Eckard Brauer <eckard.brauer@REDACTED> wrote:
>
> Hello all,
>
> another beginner question: Is there any good description of how to
> debug Erlang applications? My current problem is cowboy on a Raspberry
> Pi - even the hello_erlang from the guide doesn't process requests, but
> I'd rather like to learn how debugging is possible at a more general
> level.
>
> Thanks in advance,
> Eckard
>
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