What do you use as alternatives to :observer.start in heroku-like environments?

[Joakim K]

In environment where you can not connect a console process to a web process using distributed erlang, what do you usually do?

I guess a web version of :observer.start would solve a lot of this, but haven't seen anything like that yet. Does it exist?

[Lance Halvorsen]

Eric created a proof of concept application along these lines a few months ago. You might want to have a look.

https://github.com/ericmj/gaze

.L

On Sat, Sep 5, 2015 at 2:29 PM, Joakim K <tre...@gmail.com> wrote:

In environment where you can not connect a console process to a web process using distributed erlang, what do you usually do?

I guess a web version of :observer.start would solve a lot of this, but haven't seen anything like that yet. Does it exist?

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[Joakim K]

That looks interesting.

I googled around a bit more and found https://github.com/freecnpro/ObserverWeb. No commits for a few months, but it looks nice.

[Uniaika]

My technique only applies when I do run the VM on a server of mine that
is connected to my VPN. Then I connect the Nodes together, and
Node.spawns :observer.start on the distant node.
When it comes to "heroku-like services" and such… Well, I simply don't
use them, because it's not as flexible as a dedicated server or even a
virtual machine.
(Of course it's extremely unsafe to connect two Nodes over the clearnet.)

[Robert Virding]

Observer just uses the predefined and documented standard interface for introspecting the erlang system. There are a number of "text-based" libraries which allow you to do this from the shell, for example 'redbug' or the more recent 'recon'. What I find interesting is that the interface is quite small but very powerful and you can use it without having to recompile any of your code. Which is why you can use observer, redbug, recon, ... like you do.

Robert

[Juan Facorro]

What about https://github.com/ferd/recon? The book http://www.erlang-in-anger.com/ is a great reference as well.