Improve logging.

[olessia]

• Remove event_timestamp spammy logging.
• Fix kafka.max.pull.hrs confusing message
• Add a wrapper log class that echoes to stdout so Splunk picks up the logs
  See staging output in Splunk

Closes https://github.com/Shopify/camus-project/issues/11 with the caveat that only some hand-picked important Camus longs will appear in Splunk.

[dterror-zz]

adds dedup too, intentional?

[dterror-zz]

So you're mapping debug -> info and error -> warn, intentional? We'll get all of the debug entries for these classes, are they not adding a lot of noise? You ran it in staging, so I'm half-assuming all answers will be all good, just asking anyway :)

[olessia]

Ugh, thanks for catching that. And I think I will remove the debug printout. When I tested in staging I expected the debug to be there, but for the wrong reason. Will update the PR

[olessia]

To be honest, this is not a pretty solution.
I'm going with what Hadoop book says:

Each task child process produces a logfile using log4j (called syslog), a file for data sent to standard out (stdout), and a file for standard error (stderr).

I've spent quite a bit of time trying to figure out how to redirect log4j, but to no result 😞
This is the next best thing from sprinkling printlns all over the place.

[dterror-zz]

I figured you'd done that. Next best thing is good enough.