Munin Plugins for MongoDB

Plugins

• mongo_ops : operations/second
• mongo_mem : mapped, virtual and resident memory usage
• mongo_btree : btree access/misses/etc...
• mongo_conn : current connections
• mongo_lock : write lock info
• mongo_docs : number of documents (inserted, updated...)

Requirements

• MongoDB 2.4+
• python/pymongo

Installation (ubuntu)

Install pymongo:

sudo apt-get install python-pip
sudo apt-get install build-essential python-dev
sudo pip install pymongo

Install plugins

git clone https://github.com/comerford/mongo-munin.git /tmp/mongo-munin
sudo cp /tmp/mongo-munin/mongo_* /usr/share/munin/plugins
sudo ln -sf /usr/share/munin/plugins/mongo_btree /etc/munin/plugins/mongo_btree
sudo ln -sf /usr/share/munin/plugins/mongo_conn /etc/munin/plugins/mongo_conn
sudo ln -sf /usr/share/munin/plugins/mongo_lock /etc/munin/plugins/mongo_lock
sudo ln -sf /usr/share/munin/plugins/mongo_mem /etc/munin/plugins/mongo_mem
sudo ln -sf /usr/share/munin/plugins/mongo_ops /etc/munin/plugins/mongo_ops
sudo ln -sf /usr/share/munin/plugins/mongo_docs /etc/munin/plugins/mongo_docs
sudo chmod +x /usr/share/munin/plugins/mongo_*
sudo service munin-node restart

Check if plugins are running:

munin-node-configure | grep "mongo_"

Test plugin output:

munin-run mongo_ops