TODO: Log level audit

[rvagg]

With data transfer getting increasing usage, we should do an audit of the non-DEBUG log level messages in the stack. Particularly paying concern to WARN which are typically turned on and may not be worth warning about, and INFO which may be unnecessarily chatty. Focus of the audit should be on communications paths, where interaction with peers can cause spammy logs.

[davidd8]

Marking this as a tech debt item in the Tornado backlog.