shaheenery
How to set the stacktrace depth (backtrace_depth) in Elixir Erlang
Continuing the discussion from Stacktraces being cut off:
Thank you for sharing this snippet and the link. I’m wondering if there is a best practice on how to set this flag.
- There doesn’t seem to be a function for simply reading a system flag, is this so?
- It seems like there should be some way to start an app with this setting, is there some option to pass into
elixir --erl "backtrace, 20or something? - If this has to be done on startup, is there a community convention on where to put something like this, so other devs would know where to find non-default changes made to the system?
Marked As Solved
rvirding
Creator of Erlang
I can’t remember how you can set it at startup time but you can do it at runtime using :erlang.system_flag(:backtrace_depth, new_depth). This returns the old value. The startup default is 8. Note that this sets the depth for all processes.
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