With the current Jupyter notebook the logging information goes to the console and is shown for example like this:
[I 14:46:03.466 NotebookApp] Saving [...]
[W 14:46:03.468 NotebookApp] 500 PUT /api/co [...]
For longer running processes this format is not ideal because it does not contain the date. The Jupyter documentation states that the default logging format should be
Default: '%Y-%m-%d %H:%M:%S'
if no other configuration is used but this does not seem to be the case or am I missing something?