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#!/usr/bin/python
# 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 errno
import psutil
from glusternagios import utils
from glusternagios import glustercli
from glusternagios import storage
_checkProc = utils.CommandPath('check_proc',
'/usr/lib64/nagios/plugins/check_procs')
_glusterVolPath = "/var/lib/glusterd/vols"
_checkNfsCmd = [_checkProc.cmd, "-c", "1:", "-C", "glusterfs", "-a", "nfs"]
_checkShdCmd = [_checkProc.cmd, "-c", "1:", "-C", "glusterfs", "-a",
"glustershd"]
_checkSmbCmd = [_checkProc.cmd, "-c", "1:", "-C", "smbd"]
_checkQuotaCmd = [_checkProc.cmd, "-c", "1:", "-C", "glusterfs", "-a",
"quotad"]
_checkBrickCmd = [_checkProc.cmd, "-C", "glusterfsd"]
_checkGlusterdCmd = [_checkProc.cmd, "-c", "1:", "-w", "1:1", "-C", "glusterd"]
_checkCtdbCmd = [_checkProc.cmd, "-c", "1:", "-C", "ctdbd"]
checkIdeSmartCmdPath = utils.CommandPath(
'check_ide_smart', '/usr/lib64/nagios/plugins/check_ide_smart')
def getBrickStatus(volumeName, brickName):
status = None
brickPath = brickName.split(':')[1]
pidFile = brickName.replace(":/", "-").replace("/", "-") + ".pid"
try:
with open("%s/%s/run/%s" % (
_glusterVolPath, volumeName, pidFile)) as f:
if psutil.pid_exists(int(f.read().strip())):
status = utils.PluginStatusCode.OK
brickDevice = storage.getBrickDeviceName(brickPath)
disk = storage.getDisksForBrick(brickDevice)
cmd = [checkIdeSmartCmdPath.cmd, "-d", disk, "-n"]
rc, out, err = utils.execCmd(cmd)
if rc == utils.PluginStatusCode.CRITICAL and \
"tests failed" in out[0]:
status = utils.PluginStatusCode.WARNING
msg = "WARNING: Brick %s: %s" % (brickPath, out[0])
else:
status = utils.PluginStatusCode.CRITICAL
except IOError as e:
if e.errno == errno.ENOENT:
status = utils.PluginStatusCode.CRITICAL
else:
status = utils.PluginStatusCode.UNKNOWN
msg = "UNKNOWN: Brick %s: %s" % (brickPath, str(e))
finally:
if status == utils.PluginStatusCode.OK:
msg = "OK: Brick %s" % brickPath
elif status == utils.PluginStatusCode.CRITICAL:
msg = "CRITICAL: Brick %s is down" % brickPath
return status, msg
def getNfsStatus(volInfo):
# if nfs is already running we need not to check further
status, msg, error = utils.execCmd(_checkNfsCmd)
if status == utils.PluginStatusCode.OK:
return status, msg[0] if len(msg) > 0 else ""
# if nfs is not running and any of the volume uses nfs
# then its required to alert the user
for volume, volumeInfo in volInfo.iteritems():
if volumeInfo['volumeStatus'] == glustercli.VolumeStatus.OFFLINE:
continue
nfsStatus = volumeInfo.get('options', {}).get('nfs.disable', 'off')
if nfsStatus == 'off':
msg = "CRITICAL: Process glusterfs-nfs is not running"
status = utils.PluginStatusCode.CRITICAL
break
else:
msg = "OK: No gluster volume uses nfs"
status = utils.PluginStatusCode.OK
return status, msg
def getCtdbStatus(smbStatus, nfsStatus):
if smbStatus != utils.PluginStatusCode.OK and \
nfsStatus != utils.PluginStatusCode.OK:
return (utils.PluginStatusCode.OK,
"CTDB ignored as SMB and NFS are not running")
status, msg, error = utils.execCmd(_checkCtdbCmd)
if status != utils.PluginStatusCode.OK:
return utils.PluginStatusCode.UNKNOWN, "CTDB not configured"
# CTDB, SMB/NFS are running
status, msg, error = utils.execCmd(['ctdb', 'nodestatus'])
if status == utils.PluginStatusCode.OK:
if len(msg) > -1:
message = msg[0].split()
if len(message) > 1:
msg = "Node status: %s" % message[2]
if message[2] == 'UNHEALTHY':
status = utils.PluginStatusCode.WARNING
elif message[2] in ['DISCONNECTED', 'BANNED', 'INACTIVE']:
status = utils.PluginStatusCode.CRITICAL
else:
status = utils.PluginStatusCode.UNKNOWN
return status, msg
def getSmbStatus(volInfo):
status, msg, error = utils.execCmd(_checkSmbCmd)
if status == utils.PluginStatusCode.OK:
return status, msg[0] if len(msg) > 0 else ""
# if smb is not running and any of the volume uses smb
# then its required to alert the user
for k, v in volInfo.iteritems():
cifsStatus = v.get('options', {}).get('user.cifs', 'disable')
smbStatus = v.get('options', {}).get('user.smb', 'disable')
if cifsStatus == 'enable' or smbStatus == 'enable':
msg = "CRITICAL: Process smb is not running"
status = utils.PluginStatusCode.CRITICAL
break
else:
msg = "OK: No gluster volume uses smb"
status = utils.PluginStatusCode.OK
return status, msg
def getQuotadStatus(volInfo):
# if quota is already running we need not to check further
status, msg, error = utils.execCmd(_checkQuotaCmd)
if status == utils.PluginStatusCode.OK:
return status, msg[0] if len(msg) > 0 else ""
# if quota is not running and any of the volume uses quota
# then the quotad process should be running in the host
for k, v in volInfo.iteritems():
quotadStatus = v.get('options', {}).get('features.quota', '')
if quotadStatus == 'on':
msg = "CRITICAL: Process quotad is not running"
utils.PluginStatusCode.CRITICAL
break
else:
msg = "OK: Quota not enabled"
status = utils.PluginStatusCode.OK
return status, msg
def getShdStatus(volInfo):
status, msg, error = utils.execCmd(_checkShdCmd)
if status == utils.PluginStatusCode.OK:
return status, msg[0] if len(msg) > 0 else ""
hostUuid = glustercli.hostUUIDGet()
for volumeName, volumeInfo in volInfo.iteritems():
if volumeInfo['volumeStatus'] == glustercli.VolumeStatus.OFFLINE:
continue
if hasBricks(hostUuid, volumeInfo['bricksInfo']) and \
int(volumeInfo['replicaCount']) > 1:
status = utils.PluginStatusCode.CRITICAL
msg = "CRITICAL: Gluster Self Heal Daemon not running"
break
else:
msg = "OK: Process Gluster Self Heal Daemon"
status = utils.PluginStatusCode.OK
return status, msg
def getGlusterdStatus():
status, msg, error = utils.execCmd(_checkGlusterdCmd)
msg = msg[0] if len(msg) > 0 else ""
return status, msg
def hasBricks(hostUuid, bricks):
for brick in bricks:
if brick['hostUuid'] == hostUuid:
return True
return False
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