Hi,
I just started to use Nagios to help monitoring our systems and i’m kind of new using linux too. I’m having some headaches getting one python script working with cx_Oracle lib, maybe u can help me solving this one. I’m using Debian Lenny with Nagios 3.0.6. The purpose is to check tablespaces avaiability. The problem begins when i execute it with a normal user giving me the result i want but when i try to run it as sudo i don’t have LD_LIBRARY_PATH set then it fails as i show in this 2 examples:
(running with su)
svmlinagiosdeb:/usr/lib/nagios/plugins# ./check_tablespace -u system -p change_on_install -s srvinfordb02.world INFORDB SYSTEM
Traceback (most recent call last):
File "./check_tablespace", line 3, in <module>
import cx_Oracle
ImportError: libclntsh.so.10.1: cannot open shared object file: No such file or directoryThe result i want is (running as normal user):
administrator@svmlinagiosdeb:/usr/lib/nagios/plugins$ ./check_tablespace -u system -p change_on_install -s srvinfordb02.world INFORDB SYSTEM
OK: Tablespace SYSTEM 'ONLINE' com 74.21% de ocupacao.
OK: Tablespace INFORDB 'ONLINE' com 52.35% de ocupacao.commands.cfg
define command{
command_name check_tablespace
command_line /usr/lib/nagios/plugins/check_tablespace -u $ARG1$ -p $ARG2$ -s $ARG3$ -w 85 -c 90 $ARG4$ $ARG5$ $ARG6$ $ARG7$ $ARG7$
}
host.cfg
define service{
use generic-service
host_name srvinfordb02
service_description TABLESPACES
check_command check_tablespace!system!change_on_install!srvinfordb02.world!INFORDB!SYSTEM
}
check_tablespace
[code]#!/usr/bin/python
import cx_Oracle
import sys
import getopt
def usage():
print 'Ex: check_tablespaces -h|–help] -u] $USERNAME -p] $PASSWORD -s] $SID -w] $VALUE -c] $VALUE $TSPC1 $TSPC2 $TSPC3 $TSPC4 … '
sys.exit(3)
try:
options, args = getopt.getopt(sys.argv[1:],‘hu:p:s:w:c:’)
except getopt.GetoptError, err:
usage()
sys.exit(3)
l_w = 85
l_c = 90
for name, value in options:
if name in (’-u’):
l_user = value
if name in ('-p'):
l_pass = value
if name in ('-s'):
l_sid = value
if name in ('-w'):
l_w = int(value)
if name in ('-c'):
l_c = int(value)
l_comma = 0
l_tblspc = ‘’
for l_item in args:
if l_comma == 0:
l_tblspc = ‘’’ + l_item + ‘’‘
l_comma = 1
else:
l_tblspc += ‘,’’ + l_item + ‘’’
if l_tblspc == ‘’:
usage()
conn = cx_Oracle.connect(l_user + ‘/’ + l_pass + ‘@’ + l_sid)
cursor = conn.cursor()
query = ‘select a.TABLESPACE_NAME, c.status, round(((a.BYTES-b.BYTES)/a.BYTES)*100,2) percent_used
from
(
select TABLESPACE_NAME,
sum(BYTES) BYTES
from dba_data_files
where tablespace_name in (’ + l_tblspc + ‘)
group by TABLESPACE_NAME
) a,
(
select TABLESPACE_NAME, sum(BYTES) BYTES, max(BYTES) largest
from dba_free_space
where tablespace_name in (’ + l_tblspc + ‘)
group by TABLESPACE_NAME
) b,
(
select STATUS, TABLESPACE_NAME
from dba_tablespaces
where tablespace_name in (’ + l_tblspc + ‘)
) c
where a.TABLESPACE_NAME = b.TABLESPACE_NAME
and b.TABLESPACE_NAME = c.TABLESPACE_NAME
order by ((a.BYTES-b.BYTES)/a.BYTES) desc’
cursor.execute(query)
erro = 0
for row in cursor:
alert = ‘OK’
if row[2] >= l_w:
erro = 1
alert = 'WARNING'
if row[2] >= l_c:
erro = 2
alert = 'CRITICAL'
if row[1] == 'OFFLINE':
erro = 2
alert = 'CRITICAL'
print alert + ': Tablespace ' + row[0] + ' \'' + row[1] + '\' com ' + str(row[2]) + '% de ocupacao.'
sys.exit(erro)
cursor.close()
conn.close()[/code]
Nagios is giving me an warning alert with “(null)” on status information.
Is there a way i can solve this?
Thank you for your help.
Best regards,
Bruno Marinho