Re: Determining Oracle status

here is a snippet i use to determine if the db is up. u can use any sql script, i choose to get the db name and compare to sid.

if [ `which sqlplus | grep "no sqlplus" | wc -l` -eq 0 ] &&

   [ "`print "\n\n\n" | sqlplus -s guest/guest@$sid @$ORABIN/db_get_dbname | grep Instance_Name | awk '{print $2}'`" = "$sid" ] then

      db is up stuff...
fi

>>> Barry.Deevey_at_sefas.co.uk 09/18/01 11:45AM >>>
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).

--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Gene Sais
  INET: Gsais_at_co.palm-beach.fl.us

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).