[erlang-questions] An answer: how does SASL know that a process died?

Richard Carlsson <>
Fri Nov 1 10:49:15 CET 2013


On 2013-10-31 17:15 , Matthias Lang wrote:
> Hi,
>
> RC> I'm not sure if that can RC be changed or if it needs to remain
> RC> backwards compatible with existing code out there.
>
> I think it would affect people, but not code.
>
> People might use the 'process X crashed...' message as part of their
> development workflow, to see problems while hacking.
>
> I doubt removing it would affect code. The only thing it's likely to
> affect is logging code, and logging code won't care if there's less to
> log. The least farfetched idea I can come up with for useful code that
> would be affected is if someone clever has built a "supervisor-less"
> supervision system based on parsing those messages.

Well, I wasn't going to suggest removing it entirely, but changing the 
format so that it's not just a string, and the formatting can be done by 
the handler after it decides that it actually cares about this event. 
But error loggers would need to handle the new message type.

    /Richard



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