ipython/nbviewer — pull request #233 by minrk (2014-03-31 05:49:35+00:00)
Title: reduce log level of some common operations

our logs are flooded with cache messages, which we generally only care about when they are slow.

This demotes most of these to debug-level unless they are slow.

We are exceeding the logentries free account limit, and these messages account for much of that volume.