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#!/usr/bin/python
#
# check_cluster_status
# Aggregated status for a gluster cluster
# The plugin reads status data using mk-livestatus
# Assumptions:
# - Volume utilization service names has "Status"
#
# Copyright (C) 2014 Red Hat Inc
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
#
import sys
from argparse import ArgumentParser
import livestatus
from glusternagios import utils
def findClusterStatus(clusterName):
exitStatus = utils.PluginStatusCode.OK
# Write command to socket
cmd = "GET services\nColumns: state\n" \
"Filter: description ~~ %s\n" \
"Filter: host_name = %s" % ('Volume Status', clusterName)
table = livestatus.readLiveStatus(cmd)
noOfVolumesInCriticalState = 0
noOfVolumes = len(table)
for row in table:
if len(row) > 0 and row[0] == '2':
noOfVolumesInCriticalState += 1
if noOfVolumesInCriticalState == noOfVolumes:
print "Cluster Status CRITICAL: All Volumes are in Critical State " \
"| noOfVolumes=%s noOfVolumesInCriticalState=%s" \
% (noOfVolumes, noOfVolumesInCriticalState)
exitStatus = utils.PluginStatusCode.CRITICAL
elif noOfVolumesInCriticalState > 0:
print "Cluster Status WARNING : Some Volumes are in Critical State " \
"| noOfVolumes=%s noOfVolumesInCriticalState=%s" \
% (noOfVolumes, noOfVolumesInCriticalState)
exitStatus = utils.PluginStatusCode.WARNING
else:
print "Cluster Status OK : None of the Volumes are in Critical " \
"State | noOfVolumes=%s noOfVolumesInCriticalState=%s" \
% (noOfVolumes, noOfVolumesInCriticalState)
return exitStatus
def parse_input():
parser = ArgumentParser(usage='%(prog)s [-h] <cluster>')
parser.add_argument("cluster", help="Name of the cluster")
args = parser.parse_args()
return args
# Main method
if __name__ == "__main__":
args = parse_input()
# Find the cluster status
exitStatus = findClusterStatus(args.cluster)
sys.exit(exitStatus)
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