Using Other Advanced Tools
We have learned how trace can be used to debug live systems with minimum impact. There are many other libraries in Erlang/OTP and in the community you can use to understand production systems. We’ll look at three Erlang tools: the :runtime_tools library, the :crash_dump viewer, and the :recon project.
Debugging with Runtime Tools
You’ve already seen one of the :runtime_tools. The :dbg module enables tracing. We only scratched the surface. The useful library also includes more advanced functionality such as:
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An Observer backend for remote debugging. If you want to remotely analyze a production node using the Observer tool, the node must have runtime_tools running. For the details of remote observing, see this article ...
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