Munin contributed plugins

#!/usr/bin/env python

"""

=head1 NAME

mongo_lock - MongoDB lock Plugin

=head1 APPLICABLE SYSTEMS

MongoDB 2.X. The "lockTime" field was removed in later versions.

=head1 CONFIGURATION

    [mongo_lock]

    env.MONGO_DB_URI mongodb://user:password@host:port/dbname

=head1 AUTHOR

Original script there : https://github.com/comerford/mongo-munin

Doc added by Alban Espie-Guillon <alban.espie@alterway.fr>

=cut

"""

import urllib2

import sys

try:

    import json

except ImportError:

    import simplejson as json

def getServerStatus():

    raw = urllib2.urlopen( "http://127.0.0.1:28017/_status" ).read()

    return json.loads( raw )["serverStatus"]

name = "locked"

def doData():

    status = getServerStatus()

    if status["version"] >= "2.2.0":

        if status["globalLock"]["lockTime"]["$numberLong"]:

            ratio = float(status["globalLock"]["lockTime"]["$numberLong"]) / float(status["globalLock"]["totalTime"]["$numberLong"])

        else:

            ratio = float(status["globalLock"]["lockTime"]) / status["globalLock"]["totalTime"]

    else:

        ratio = status["globalLock"]["ratio"]

    print name + ".value " + str( 100 * ratio )

def doConfig():

    print "graph_title MongoDB write lock percentage"

    print "graph_args --base 1000 -l 0 "

    print "graph_vlabel percentage"

    print "graph_category db"

    print name + ".label " + name

if __name__ == "__main__":

    if len(sys.argv) > 1 and sys.argv[1] == "config":

        doConfig()

    else:

        doData()