visualixir alternatives and similar packages
Based on the "Debugging" category
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Visualixir is a toy process visualizer for remote BEAM nodes, written in Phoenix/Elixir/d3, with live message sequence charts.
It's largely intended as a teaching tool, to give newer BEAM programmers a look into the process ecosystem living inside their nodes. However, it may prove of some amusement/use to more experienced folks (it's kinda neat to trace
iex and the io system).
A huge gif is worth a thousand words:
Here's Visualixir tracing some messages through the Riemann application.
- Clone this repository.
mix deps.get && mix compile && cd assets && npm install
- Start 'er up:
elixir --sname visualixir --hidden -S mix phoenix.server
- Navigate to the GUI
If you want to visualize other BEAM nodes, you'll need to start them up with the
--sname <unique_name_here> option.
I suggest you use Chrome for Visualixir, Safari's SVG performance seems to be lacking.
There's a simple
PingPong module included, for demo purposes.
On the upper left of the terrible GUI is a list of nodes that Visualixir curently knows about, including itself. You can click on a node's name to visualize it, or you can add a new node by entering it in the text box.
Drag the background to pan around.
Move processes around and pin them down by dragging and dropping. To un-pin, double click.
Zoom by scrolling (mousewheel or two-finger swipe).
Option-clicking (alt-clicking), will start message tracing the selected process. Its outline will change to red to remind you that you're tracing it. You can click the
Stop Msg Tracing button to halt all message tracing.
The log at the bottom keeps a brief history of a limited set of events on the node: spawns, exits, links, messages, etc..
Live Message Sequence Charts
The live message sequence charts have a configurable fade time, but there's no GUI for it yet, see web/static/js/message_sequence.js
The charting library is here, and it'd love some pull requests. <3
Do not run Visualixir on production nodes, seriously. I've tried to make it somewhat safe, but I suspect you can get into some bad message-tracing scenarios that'll compromise your node.
I think Visualixir is a decent starting place for other BEAM visualization tools. I'd love to see what folks come up with, PR's are gladly accepted! 💕 (the GUI needs a lot of help)
It'd be really cool to watch Riak through Visualixir, but I'm afraid that isn't possible right now. Riak ships with a custom BEAM version that's rather old. Visualixir needs BEAM version parity between itself and the node being visualized. If you can find a decent way around this, I'd love to hear it. :)