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Home -> Community -> Mailing Lists -> Oracle-L -> Re: SLA Trigger/Procedure
Perhaps there is a "poor mans" way of doing this. The startup trigger
could fire a procedure that inserts a row into a table and then sleeps for
1 minute before doing the same again. Effectively it would create a ping
in the table, which you could then analyze / graph to display uptimes.
The next logical step would be to increase the intelligence of the procedure. The table storing the statistic could consist of two columns - uptime and downtime. When the startup trigger fires it creates a new row in the table with both uptime and downtime set to sysdate. It then sleeps for a minute before updating downtime for the most recent record (either remember a primary key or search for max(uptime)). This would be much easier to understand when the database was stopped / started.
Of course depending on your accuracy requirement, granularity could be changed to every 5 minutes, 10 minutes, whatever.
Hopefully that gives some ideas though. Of course the 3rd party monitors that Jared mentions are worth considering if the database is considered critical. In that case the number one requirement is probably the ability to page / SMS / email when it sees the database is down.
Regards,
Mark.
Jared.Still_at_ra
disys.com To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
Sent by: cc:
root_at_fatcity.c Subject: Re: SLA Trigger/Procedure
om
03/12/2002
12:13
Please respond
to ORACLE-L
Ethan,
That records the startup times, but does not record the time that the database was unavailable.
What's needed is a 3rd party monitor that is not dependent on the database being up to record metrics.
Jared
"Post, Ethan" <Ethan.Post_at_ps.net>
Sent by: root_at_fatcity.com
12/02/2002 02:33 PM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
cc:
Subject: SLA Trigger/Procedure
Just a thought here for a script I think would be handy but I haven't had time to write.
It is would be a simple procedure you could call to get the service level for a particular database. I suppose you would have to have some sort of way of defining normal outage windows. Basically a startup trigger would log the times in a table. You should also check the startup time against the last startup time periodically to ensure the trigger always fires. Somehow a procedure/function should be able to use this information to report the service level for the database within the last (week/month/quarter/year).
I suppose I will get around to it eventually but if anyone else wants to
get
started on it I won't mind!
Thanks,
Ethan
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Post, Ethan INET: Ethan.Post_at_ps.net Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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: INET: Jared.Still_at_radisys.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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 Mon Dec 02 2002 - 20:13:47 CST
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