Description

We seem to output block graffiti to the logs without escaping or removing unprintable characters, which causes text-based tools like grep to choke up:

$ grep 'graffiti' medalla_bn.log
Binary file medalla_bn.log matches

(You need to re-run with grep --text)

It looks like we make some attempt to sanitize the graffiti, but it doesn't seem to be working as int

• Introduce and implement circuit breaker pattern for weaver

In winston logger, logger.profile, if level is not explicitly set, set to verbose.

Edit:
Log profiling logs to verbose, not info.

recently CI failed many times testing cluster because of port already used, which can be very annoying.