#!/usr/bin/env python

# -*- coding: utf-8 -*-

from munin.mongodb import MuninMongoDBPlugin

class MongoDBMemoryPlugin(MuninMongoDBPlugin):

args = "-l 0 --base 1024"

vlabel = "bytes"

title = "MongoDB memory usage"

info = "Memory usage"

fields = (

('virtual', dict(

label = "virtual",

info = "Bytes of virtual memory",

type = "GAUGE",

min = "0",

)),

('resident', dict(

label = "resident",

info = "Bytes of resident memory",

type = "GAUGE",

min = "0",

)),

('mapped', dict(

label = "mapped",

info = "Bytes of mapped memory",

type = "GAUGE",

min = "0",

)),

)

def execute(self):

status = self.connection.admin.command('serverStatus')

values = {}

for k in ("virtual", "resident", "mapped"):

try:

value = int(status["mem"][k]) * 1024 * 1024

except KeyError:

value = "U"

values[k] = value

return values

if __name__ == "__main__":

MongoDBMemoryPlugin().run()