observer_cli

Visualize Erlang/Elixir Nodes On The Command Line By Using recon.

Animation Show.

Goal

Minimal consumption.

Just look like observer, but in shell,

you might think observer_cli would be more convenient than observer.

Install

Erlang

%% rebar.config
{deps, [observer_cli]}

Elixir

# mix.exs
   def deps do
     [{:observer_cli, "~> 1.2.0"}]
   end
   def application do
     [applications: [:observer_cli]]
  end

Try In Shell

$ rebar3 shell
1> observer_cli:start().

Escriptize

1. rebar3 escriptize to generate an escript executable containing the project's and its dependencies' BEAM files.

   Place script(_build/default/bin/observer_cli) anywhere in your path and use observer_cli command.

2. observer_cli <TARGETNODE> <TARGETCOOKIE> to monitor remote node.

   ❗ ensure observer_cli application start on target node.

Process And System Information

ETS And System Information

Allocator Information

Mnesia Information

Help Information

Command

> observer_cli:start().%% default refresh interval is 2000
> observer_cli:start(Node).
> observer_cli:start(Node, Cookie).

TODO

• Processes Memory, Binary, Total Heap Size, Reductions Top.
• include System and Architecture, CPU's and Threads metrics in observer's system
• Memory Allocators: std, ll, eheap, ets,fix, binary, driver.
• ets include all metrics ets in observer's Table Viewer.
• doc (keep simple)
• remote node support
• mneisa: table info by using mnesia:info, mnesia:system_info/1,
• Draw all application’s relations.
• Trace Overview. You should use recon_trace.

Changelog

• 1.1.0

  • Support escript, observer_cli <TARGETNODE> <COOKIE>

• 1.0.9

  • Upgrade rebar3 to 3.3.3 for publish hex repo.

License

See the LICENSE file for license rights and limitations (MIT).