• mongo_collcount : Count of documents in multible collections per db
• mongo_collsize : Index, storage and data size per collection
• mongo_indexsize : Index sizes of all collections in a db

• pymongo 1.4+
• MongoDB 1.4+

Follow the following steps to install these plugins on your munin-node

• Copy "mongo_collcount" and "mongo_indexsize" into "/etc/mongo/plugins"

• Copy the wildcard plugin "mongo_collsize" to "/etc/mongo/plugins/mongo_collsize_(you collection>)", where (your collection) means the name of the collection you want to monitor, this is case sensetive!

• Edit /etc/munin/plugin-conf.d/plugins, and add the following:

  [mongo_*] user nobody env.HOST env.PORT 27017 env.DB

• At last restart munin-node: sudo /etc/init.d/munin-node restart