Grepping for startup/shutdown in the logs

Question

Hello,
I've been asked to provide a script that parses the oracle logs and can determine if there were some errors. So far I can find the numerical errors in my script (like ORA-00600) but I also need to be able to tell when a db has been shut down, started or restarted. What can I look for in the logs that would determine that?
Thanks
Tim

Answer 1

EdStevens wrote:
918944 wrote:
sb92075 wrote:
918944 wrote:
Hello,
I've been asked to provide a script that parses the oracle logs and can determine if there were some errors. So far I can find the numerical errors in my script (like ORA-00600) but I also need to be able to tell when a db has been shut down, started or restarted. What can I look for in the logs that would determine that?
Realize that a shutdown may not precede a startup; since the cleaning lady could just unplug the box
Also you can treat the alert_SID.log file as EXTERNAL TABLE; eliminating the need for grep & similar OS utilities by doing everything in SQL or PL/SQL.Very interesting idea. However we're trying to be alerted to such events using nagios without logging into the box. The idea it if a startup/shutdown occors, or a numerical event such as an ORA-00600 occurs, nagios will detect that via a perl script and shoot off an email to the team and send a page to a pager. So I still need to know what in the logs would indicate a startup or shutdown. We are using oracle 10g by the way.
That shouldn't be hard at all to do. All I would need to know is what in the logs indicates a startup or a shutdown. I've tried grepping for the terms in the ${SID}_alert.log(s) but found nothing as of yet.
ThanksWell, as said earlier, a 'shutdown' could be a hard shutdown (the cleaning lady plugged a vacuum cleaner into the ups and blew the circuit, killing the server .... yes, I've seen it happen) so the db does not get an opportunity to log it.
But for the more common ones, what are you currently grepping for? Looking at one of my alert logs I see likely strings "Shutting down instance" and "Starting ORACLE instance".Thanks found it! Fixed grep.. we're now monitoring for this. Appreciate the advice!