mzupan/nagios-plugin-mongodb — pull request #133 by hydrapolic (2014-09-09 10:37:13+00:00)
Title: Allow to monitor collection size

Since mongo doesn't reclaim free space, it may hapen that you clean your collection, but the storageSize remains the same. After setting up monitoring on a particular collection, you can see what happens inside.

Currently, you can just see the storageSize of the whole database, so even if you cleaned your data but didn't do a compact, you don't catch the changes over time.