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#!/usr/bin/env python
#
# Copyright (C) 2012 eNovance <licensing@enovance>
#
# Authors: Mehdi Abaakouk <sileht@sileht.net>
# Gael Lambert <gael.lambert@enovance.com>
# Jesse Andrews <anotherjesse@rackspace.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#
# Plugin to monitor trending of launch/schedule times for last 5 successful instances
#
# To monitor a floating ips, link floating_ips to this file.
# E.g.
# ln -s /usr/share/munin/plugins/nova_instance_timing /etc/munin/plugins/
#
# Needs following minimal configuration in plugin-conf.d/nova:
# [nova_*]
# user nova
#
# Magic markers
#%# capabilities=autoconf
#%# family=auto
import sys
try:
from nova import context
from nova import db
from nova import flags
from nova import utils
from nova.db.sqlalchemy.session import get_session
except ImportError:
succesful_import = False
else:
succesful_import = True
def print_config():
global states
print 'graph_title Nova Launch Times'
print 'graph_vlabel seconds'
print 'graph_args --base 1000 --lower-limit 0'
print 'graph_category nova'
print 'graph_scale no'
print 'graph_info This the average time for the last 5 schedulings/launchings'
print 'schedule.label schedule time'
print 'schedule.draw LINE2'
print 'schedule.info average time for last 5 instance to be scheduled'
print 'launch.label launch time'
print 'launch.draw LINE2'
print 'launch.info average time for last 5 instance to be launched after scheduling'
def get_status():
connection = get_session().connection()
row = connection.execute("select AVG(TIME_TO_SEC(TIMEDIFF(scheduled_at, created_at))) from instances where scheduled_at is not null order by scheduled_at desc limit 5;").fetchall()[0]
schedule = row[0]
row = connection.execute("select AVG(TIME_TO_SEC(TIMEDIFF(launched_at, scheduled_at))) from instances where launched_at is not null order by launched_at desc limit 5;").fetchall()[0]
launch = row[0]
return (schedule, launch)
def print_values():
schedule, launch = get_status()
print "schedule.value %s" % schedule
print "launch.value %s" % launch
if __name__ == '__main__':
if len(sys.argv) > 1:
if sys.argv[1] == "config":
print_config()
elif sys.argv[1] == "autoconf":
if not succesful_import:
print 'no (failed import nova module)'
sys.exit(0)
else:
print 'yes'
elif succesful_import:
utils.default_flagfile()
flags.FLAGS(sys.argv)
print_values()
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