stumbleupon/tcollector — pull request #1 by timdoug (2013-01-23 15:43:10+00:00)
Title: Add a MongoDB collector

Unlike https://github.com/greenmang0/opentsdb-mongo, doesn't require --rest to be enabled at server launch, because it talks directly to the server instead of the REST interface. Preferable, I'd argue, because it therefore doesn't need extra configuration / restarts to enable.