[erlang-questions] Access to process dictionary

[Attila Rajmund Nohl]

Eric Pailleau <eric.pailleau@REDACTED> ezt írta (időpont: 2018. dec.
23., V, 10:13):
>
> You should however avoid to use process dictionaries if possible.
>
> It is handy to store things, but generally a sign that your code is missing something.
>
>
> For instance if you face some processes crashes, your process dictionary will be lost, while using states in OTP libs will be shown in crash report. Easier for debugging.

I do see the process dictionary in crash reports (I'm not sure if
lager puts it there or it is there by default). Process dictionary is
useful for read-only data (i.e. not state): put stuff there at process
startup, then don't have to worry about passing yet an other value
around, all function can access that piece of data.