Improving request logging.

[AllanKlaus]

I'm trying to use falcon on production in one app that I'm creating. Now I'm blind of logs, I don't know what happen when I run the app it don't show any logs of requests only the database interactions.

I'm running my app using foreman with the command falcon serve -b http://0.0.0.0:9292. Everything is running on a container. I didn't change anything on the config/enviroment/production.rb it's running all the rails default.

Can someone help me with this?

[ioquatix]

The simplest way to get more information is to run with --verbose.

That being said, it produces a lot of information.

We should probably provide a middle ground for just logging requests.

Logging like this impacts performance, so it's not by default.

A simple solution which works everywhere is to use a logging middleware.

I'll think about the best way to solve this issue.

[AllanKlaus]

i will try it. thanks. If there is something that I can do to help, just let me know.

[buhrmi]

I found that the problem with the squelched logs in Falcon lies with foreman. Switching over to hivemind (another Procfile-based process manager) fixed it.

[ioquatix]

Do you know why it made a difference?

[buhrmi]

Not really. But in the hivemind readme (https://github.com/DarthSim/hivemind) they write Hivemind uses pty to capture process output. That fixes any problem with log clipping, delays, and TTY colors other process management tools may have.. So apparently it's a common thing and not Falcon-specific. Wouldn't lose sleep over it 😅

[buhrmi]

And The problem with most of those tools is that processes you want to manage start to think they are logging their output into a file, and that can lead to all sorts of problems: severe lagging, losing or breaking colored output.

[ioquatix]

Yes that makes sense, if you want to capture TTY output then you need to simulate a TTY for the child process. And you are correct this is not Falcon specific.

[buhrmi]

yeah just wanted to note my findings here to help close this issue, unless you don't like closing issues 🤔😅

[nogweii]

How does one turn on verbose logging with falcon host? Can the middleware be used directly?

[ioquatix]

Iirc add verbose true to your service config. When I am home later today I’ll check it.

[nogweii]

Your memory was correct, adding that did the trick!