Check out the following script.
- SCRIPT STARTS
HERE*********************
#!/usr/bin/sh
#######################################################################################
#
# Auther : Raj Sakthi
#
# Modification History :
# 02/23/01 : Network Connectivity Checking was added
.
#
# *** THIS SCRIPT CHECKS FOR THE AVAILABILITY OF
INSTANCE ALONG WITH THE ****
# *** NETWORK CONNECTIVITY
#
# Usage : Pass SID as parameter.
# Example : sid_run orcl
#
########################################################################################
export CHECK_CONNECT=$$.CHECK_CONNECT
export READY=$$.ready
SID=$1
rm -f $READY
print "
connect a/aa@$SID
host touch $READY
exit " |
sqlplus /nolog > $CHECK_CONNECT &
#
# Next we use a timer to check the sqlplus
hanging.........
#----------------------------------------------------------------
((timeout = 60))
while ((timeout -= 1)) && [[ ! -r $READY ]]
do
sleep 1
done
#
# If the file Doesn't exist then we check for internal
connectivity ..............
#--------------------------------------------------------------------------------
if [ ! -f $READY ]
then
print "
connect internal
exit " |
sqlplus /nolog > $SID_connect.log
egrep 'Connected' $SID_connect.log >
/dev/null
if [ $? = 0 ]
then
echo " Problem in Network connectivity of
$SID "
else
echo " Instance $SID is not responding "
#
# Here we decide that Database is unavailable Due to
SQLPLUS hanging .........
#-------------------------------------------------------------------------------
exit 86
fi
fi
egrep 'ORA-01034|ORA-12224|ORA-12154'
$CHECK_CONNECT > /dev/null
if [[ $? = 0 ]]; then
echo "Instance '$SID' is NOT accessible, or invalid
ORACLE_SID"
rm $CHECK_CONNECT
rm $READY
#
# Here instance is not available....staight and
simple..: )
#-----------------------------------------------------------------------------
exit 86
else
#
# Check for INSTANCE availability by the specific
ORACLE error..........slick ..eh?!
#-------------------------------------------------------------------------
grep 'ORA-01017' $CHECK_CONNECT > /dev/null
if [[ $? = 0 ]]; then
echo "Instance '$SID' is UP and Accessible"
else
#
#To catch any other error .....
#
echo "Instance '$SID' is HAVING UNKNOWN ERROR.
\n Verify Instance internal state "
fi
fi
rm $CHECK_CONNECT
rm $READY
**************** END ************************
regards,
RS
- Barry Deevey <Barry.Deevey_at_sefas.co.uk> wrote:
> Hi all,
>
> I am trying to write a script in unix that
> determines if a specific oracle
> instance is available. I'm trying to avoid using the
> 'ps' command, so I
> thought the easiest method would be to connect via
> sqlplus - If it connects
> its up, if it doesn't then its unavailable. However,
> the problem is that
> when it isn't up, the script hangs and does not
> return anything - I think
> that this is because sqlplus by default gives you 3
> attempts to logon, so
> even though the logon attempt failed, it is waiting
> for you to try again, so
> unfortunately I'm not getting a failed return code.
> If anybody could tell me how to change this so that
> it only allows 1 login
> attempt before 'kicking you out' or whether there is
> a better method to
> finding out the status of an instance, I would be
> extremely grateful to hear
> from you.
>
> TIA for any responses.
>
> Best Regards,
> Barry.
>
>
> --
> Please see the official ORACLE-L FAQ:
> http://www.orafaq.com
> --
> Author: Barry Deevey
> INET: Barry.Deevey_at_sefas.co.uk
>
> Fat City Network Services -- (858) 538-5051 FAX:
> (858) 538-5051
> San Diego, California -- Public Internet
> access / Mailing Lists
>
> To REMOVE yourself from this mailing list, send an
> E-Mail message
> to: ListGuru_at_fatcity.com (note EXACT spelling of
> 'ListGuru') and in
> the message BODY, include a line containing: UNSUB
> ORACLE-L
> (or the name of mailing list you want to be removed
> from). You may
> also send the HELP command for other information
> (like subscribing).
Terrorist Attacks on U.S. - How can you help?
Donate cash, emergency relief information
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--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Sakthi , Raj
INET: rajan_sakthi_at_yahoo.com
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
San Diego, California -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
Received on Tue Sep 18 2001 - 17:58:08 CDT
