Allow the heartbeat debug messages to be disabled

[swelham]

When using many workers it is very hard to inspect other application output or to run commands when using iex -S mix due to the number of heartbeat messages being output by faktory. I believe by default these messages are output once every 15 seconds per worker, which in the case of our application is almost a continuous stream of messages.

Would it be possible to add some form of config that would allow this to be disabled?

p.s. I am happy to put together a PR if this is something you are happy to support.

[cjbottaro]

Yes, definitely. It annoys me too.

Is there a benefit to having Faktory have it's own logger, where the log level can be turned to INFO and thus not get the debug heartbeat messages, but not affect the rest of the app?

Example:

config :faktory, log_level: INFO
config :logger, :level, :DEBUG

Something like that. Or should it just use the normal logging with tagging and share the "level" as the rest of the apps, but then have a config to turn off heartbeat messages?

[cjbottaro]

I think I want to use something like this:
https://hex.pm/packages/flex_logger

That way you can turn faktory_worker_ex's logging to :info but keep the rest of your app at :debug. There is a lot of other :debug noise that faktory_worker_ex spits out.

What do you think?

[swelham]

I haven't used flex_logger before but it looks really cool. I probably need a deeper read through the docs but would this be included as a dep in faktory_worker_ex and configured through the faktory worker config? Or added to the consuming app and configured separately?

[cjbottaro]

I have those same questions and I opened an issue about it:
arnomi/elixir-flex-logger#1