Add automatic check/trigger when logging is taking up too much memory

[brendanlensink]

If we're logging too much, it can cause weird bugs and the system to lock up which is bad.

We should look into adding some mechanism that will detect if we're logging too much to the file system and fire off a warning/error.

[apike]

I would say that too much memory is one thing, but "too many logs per second/minute" is probably the biggest heuristic worth flagging.