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#!/bin/sh
#
# latigid010@yahoo.com
# 01/06/2000
#
# This Nagios plugin was created to check remote or local TNS
# status and check local Database status.
#
# Add the following lines to your object config file (i.e. commands.cfg)
# command[check-tns]=/usr/local/nagios/libexec/check_ora 1 $ARG$
# command[check-oradb]=/usr/local/nagios/libexec/check_ora 2 $ARG$
#
#
# Usage:
# To check TNS Status: ./check_ora 1 <Oracle Sid or Hostname/IP address>
# To Check local database: ./check_ora 2 <ORACLE_SID>
#
# I have the script checking for the Oracle PMON process and
# the sgadefORACLE_SID.dbf file.
#
#
# If you have any problems check that you have the $ORACLE_HOME
# enviroment variable set, have $ORACLE_HOME/bin in your PATH, and
# dont forget about your tnsnames.ora file. when checking Local
# Database status your ORACLE_SID is case sensitive.
#
PROGNAME=`basename $0`
PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`
REVISION=`echo '$Revision$' | sed -e 's/[^0-9.]//g'`
. $PROGPATH/utils.sh
print_usage() {
echo "Usage:"
echo " $PROGNAME --tns <Oracle Sid or Hostname/IP address>"
echo " $PROGNAME --db <ORACLE_SID>"
echo " $PROGNAME --login <ORACLE_SID>"
echo " $PROGNAME --cache <USER> <PASS> <INST> <CRITICAL> <WARNING>"
echo " $PROGNAME --tablespace <USER> <PASS> <INST> <TABLESPACE> <CRITICAL> <WARNING>"
echo " $PROGNAME --oranames <Hostname>"
echo " $PROGNAME --help"
echo " $PROGNAME --version"
}
print_help() {
print_revision $PROGNAME $REVISION
echo ""
print_usage
echo ""
echo "Check remote or local TNS status and check local Database status"
echo ""
echo "--tns=SID/IP Address"
echo " Check remote TNS server"
echo "--db=SID"
echo " Check local database (search /bin/ps for PMON process and check"
echo " filesystem for sgadefORACLE_SID.dbf"
echo "--login=SID"
echo " Attempt a dummy login and alert if not ORA-01017: invalid username/password"
echo "--cache"
echo " Check local database for library and buffer cache hit ratios"
echo " ---> Requires Oracle user/password and SID specified."
echo " ---> Requires select on v_$sysstat and v_$librarycache"
echo "--tablespace"
echo " Check local database for tablespace capacity in ORACLE_SID"
echo " ---> Requires Oracle user/password specified."
echo " ---> Requires select on dba_data_files and dba_free_space"
echo "--oranames=Hostname"
echo " Check remote Oracle Names server"
echo "--help"
echo " Print this help screen"
echo "--version"
echo " Print version and license information"
echo ""
echo "If the plugin doesn't work, check that the ORACLE_HOME environment"
echo "variable is set, that ORACLE_HOME/bin is in your PATH, and the"
echo "tnsnames.ora file is locatable and is properly configured."
echo ""
echo "When checking Local Database status your ORACLE_SID is case sensitive."
echo ""
support
}
case "$1" in
1)
cmd='--tns'
;;
2)
cmd='--db'
;;
*)
cmd="$1"
;;
esac
# Information options
case "$cmd" in
--help)
print_help
exit $STATE_OK
;;
-h)
print_help
exit $STATE_OK
;;
--version)
print_revision $PLUGIN $REVISION
exit $STATE_OK
;;
-V)
print_revision $PLUGIN $REVISION
exit $STATE_OK
;;
esac
# Hunt down a reasonable ORACLE_HOME
if [ -z "$ORACLE_HOME" ] ; then
# Adjust to taste
for oratab in /var/opt/oracle/oratab /etc/oratab
do
[ ! -f $oratab ] && continue
ORACLE_HOME=`IFS=:
while read SID ORACLE_HOME junk;
do
if [ "$SID" = "$2" ] ; then
echo $ORACLE_HOME;
exit;
fi;
done < $oratab`
[ -n "$ORACLE_HOME" ] && break
done
fi
# Last resort
[ -z "$ORACLE_HOME" -a -d $PROGPATH/oracle ] && ORACLE_HOME=$PROGPATH/oracle
if [ -z "$ORACLE_HOME" -o ! -d "$ORACLE_HOME" ] ; then
echo "Cannot determine ORACLE_HOME for sid $2"
exit $STATE_UNKNOWN
fi
PATH=$PATH:$ORACLE_HOME/bin
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/lib
export ORACLE_HOME PATH LD_LIBRARY_PATH
case "$cmd" in
--tns)
tnschk=` tnsping $2`
tnschk2=` echo $tnschk | grep -c OK`
if [ ${tnschk2} -eq 1 ] ; then
tnschk3=` echo $tnschk | sed -e 's/.*(//' -e 's/).*//'`
echo "OK - reply time ${tnschk3} from $2"
exit $STATE_OK
else
echo "No TNS Listener on $2"
exit $STATE_CRITICAL
fi
;;
--oranames)
namesctl status $2 | awk '
/Server has been running for:/ {
msg = "OK: Up"
for (i = 6; i <= NF; i++) {
msg = msg " " $i
}
status = '$STATE_OK'
}
/error/ {
msg = "CRITICAL: " $0
status = '$STATE_CRITICAL'
}
END {
print msg
exit status
}'
;;
--db)
pmonchk=`ps -ef | grep -v grep | grep ${2} | grep -c pmon`
if [ ${pmonchk} -ge 1 ] ; then
echo "${2} OK - ${pmonchk} PMON process(es) running"
exit $STATE_OK
#if [ -f $ORACLE_HOME/dbs/sga*${2}* ] ; then
#if [ ${pmonchk} -eq 1 ] ; then
#utime=`ls -la $ORACLE_HOME/dbs/sga*$2* | cut -c 43-55`
#echo "${2} OK - running since ${utime}"
#exit $STATE_OK
#fi
else
echo "${2} Database is DOWN"
exit $STATE_CRITICAL
fi
;;
--login)
loginchk=`sqlplus dummy/user@$2 < /dev/null`
loginchk2=` echo $loginchk | grep -c ORA-01017`
if [ ${loginchk2} -eq 1 ] ; then
echo "OK - dummy login connected"
exit $STATE_OK
else
loginchk3=` echo "$loginchk" | grep "ORA-" | head -1`
echo "CRITICAL - $loginchk3"
exit $STATE_CRITICAL
fi
;;
--cache)
if [ ${5} -gt ${6} ] ; then
echo "UNKNOWN - Warning level is less then Crit"
exit $STATE_UNKNOWN
fi
result=`sqlplus -s ${2}/${3}@${4} << EOF
set pagesize 0
select (1-(pr.value/(dbg.value+cg.value)))*100 \
from v\\$sysstat pr, v\\$sysstat dbg, v\\$sysstat cg \
where pr.name = 'physical reads' \
and dbg.name='db block gets' \
and cg.name='consistent gets'; `
buf_hr=`echo $result | awk '{print int($1)}'`
result=`sqlplus -s ${2}/${3}@${4} << EOF
set pagesize 0
select sum(lc.pins)/(sum(lc.pins)+sum(lc.reloads))*100 \
from v\\$librarycache lc ; `
lib_hr=`echo $result | awk '{print int($1)}'`
if [ $buf_hr -le ${5} -o $lib_hr -le ${5} ] ; then
echo "${3} : ${4} CRITICAL - Cache Hit Rates: $lib_hr % Lib -- $buf_hr % Buff"
exit $STATE_CRITICAL
fi
if [ $buf_hr -le ${6} -o $lib_hr -le ${6} ] ; then
echo "${3} : ${4} WARNING - Cache Hit Rates: $lib_hr % Lib -- $buf_hr % Buff"
exit $STATE_WARNING
fi
echo "${3} : ${4} OK - Cache Hit Rates: $lib_hr % Lib -- $buf_hr % Buff"
exit $STATE_OK
;;
--tablespace)
if [ ${6} -lt ${7} ] ; then
echo "UNKNOWN - Warning level is more then Crit"
exit $STATE_UNKNOWN
fi
result=`sqlplus -s ${2}/${3}@${4} << EOF
set pagesize 0
select b.free,a.total,100 - trunc(b.free/a.total * 1000) / 10 prc \
from ( \
select tablespace_name,sum(bytes)/1024/1024 total \
from dba_data_files group by tablespace_name) A, \
( select tablespace_name,sum(bytes)/1024/1024 free \
from dba_Free_space group by tablespace_name) B \
where a.tablespace_name=b.tablespace_name and a.tablespace_name='${5}'; `
ts_free=`echo $result | awk '{print int($1)}'`
ts_total=`echo $result | awk '{print int($2)}'`
ts_pct=`echo $result | awk '{print int($3)}'`
if [ $ts_pct -ge ${6} ] ; then
echo "${4} : ${5} CRITICAL - $ts_pct% used [ $ts_free / $ts_total MB available ]"
exit $STATE_CRITICAL
fi
if [ $ts_pct -ge ${7} ] ; then
echo "${4} : ${5} WARNING - $ts_pct% used [ $ts_free / $ts_total MB available ]"
exit $STATE_WARNING
fi
echo "${4} : ${5} OK - $ts_pct% used [ $ts_free / $ts_total MB available ]"
exit $STATE_OK
;;
*)
print_usage
exit $STATE_UNKNOWN
esac
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