anli
Ignoring in handle_info/2 is OK. Really?
Hi! The guides suggest a clause
def handle_info(_msg, state) do
{:noreply, state}
end
to handle unexpected messages received by GenServer. But such ignoring can result in ignoring developers’ errors. So, I guess, there can be reasons to crash early on unexpected messages. Or - at least - log them. But not ignoring.
Please, show me where I’m wrong 
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josevalim
Btw, Elixir v1.4 will be moving towards to logging in such cases.
josevalim
Sorry. The default implementation for handle_info, which is the catch all
clause for unhandled messages will now log. If you provide your own
clauses, you need your own catch all and your own log though.
gregvaughn
I agree with your point. I would expect to at least log unexpected messages. I suspect the guides’ point is to get people started with minimal tangents. OTP has certain “housekeeping” sorts of messages that come into handle_info that doesn’t make a lot of sense to explain to someone brand new to the framework, and that in many cases you really should just ignore, but I agree with the idea to log them. That way you’ll be aware of them and can start seeing what they mean when you run across them.
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