recon

Recon is designed to be dropped into Erlang projects to assist DevOps in diagnosing problems in production nodes.

Each module in the recon API is intended to be used in a stand-alone manner. For deep insights into debugging production Erlang systems using this library, refer to the book Erlang in Anger.

Additionally, the script/ directory contains legacy scripts for visualizing application dependencies and extracting information from crashdumps.

If you are building releases using relx, ensure recon is included in the list of applications bundled in your release definition so it is available in production environments.

{relx, [
    {release, {myrel, "0.1.0"},
      [myapp,
       recon, % <-- here
       sasl]
    },
    ...
]}.

To build the recon library from source, use rebar3.

rebar3 compile

To add recon as a dependency in an Erlang project using rebar3, add recon to your deps list in the rebar.config file.

{deps, [recon]}.

The recon library supports the following Erlang/OTP versions:

• Supported versions: OTP-18 and up.
• Best effort support: OTP-17 down to R15B02.
• Build requirement: Building with Rebar3 requires OTP-18.3 or higher.