While looking at the web interface, it shows stats for historical tmp.mr collections. I say historical, because the tmp.mr collections shown in the web interface don't show up with db.getCollectionNames().

This is not helpful when you've got several thousand past map reduce collections that turn the landing page of the web interface into a 14Mb download.

Running as a 3-node replica set. Web interface is the same regardless of which node's web interface I'm connecting to.