#13995 was closed automatically but it has not been fixed, I believe.

This issue has not been fixed yet.

Great! That's awesome when things start to work.

The GUI thing is: so it really needs the host id and task id. I was trying to search for task name. :)

Disclaimer: I haven't checked the implementation deeply yet.

In my case I ran several playbooks in series. I used Mitogen and Ara at the same time and everything I gained with Mitogen (~31% speed increase) was diminished by Ara. I confirmed this by turning off Ara.

Yes, so the important thing is to make the callback a fire and forget event emitter. 4 is a real alternative, for sure, though we would lose the cool feature of real-time state.

With the other options, some other entity, a proxy, should be responsible for transferring the events to the API server. If we can rely on Linux and POSIX entities, then MessageQueues are one option, or UDP sockets are also viable for the IPC between the processes (and there are tons of other solutions, too). The proxy component may be started smartly, like the ControlPath in ssh.

I also looked at your threading patch. It seems like it doesn't do what you really intended. I mean like here https://review.opendev.org/#/c/749378/3/ara/plugins/callback/ara_default.py@351

def v2_runner_on_ok(self, result, **kwargs):
    self.threads.submit(self._load_result(result, "ok", **kwargs))

The submit will submit the result of the _load_result, which is always None. But the _load_result is executed synchronously, so nothing changed. Changing the call to

    self.threads.submit(self._load_result, result, "ok", **kwargs)

may be better. It will cause the function to execute asynchronously. I also commented on the review.

The other thing I found though is that the GUI seems to be a little broken as search for host and task never work for me. Always returned everything. Honestly, I feel like pouring all this data directly to Elasticsearch and visualizing it with Kibana may be a better solution. It allows for much more analysis out of the box.

Would it be possible to make the reporting asynchronous?

Thank you @CsatariGergely !

Adds a refrence to the project license to README.md. This is considered a best-practice.