Re: Database Time Spent Waiting
- From: Jay Hostetter <hostetter.jay@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Fri, 21 May 2010 08:52:33 -0400
I'm following up on this post in case anybody else sees a similar
issue. Oracle support couldn't tell me why my alerts are for zero values.
They stated that since these were not default thresholds, they recommended
that I remove them, which I will do. I was referred to note 744115.1, but I
wasn't using EM.
I wasn't entirely happy with their answer. I suspect our customer was
fiddeling around with the EM GUI at one point in a seed database, then they
propagated that seed database to various other databases. Hence the same
alerts in numerous databases on the same box.
Jay
On Fri, Apr 23, 2010 at 9:13 AM, Jay Hostetter <hostetter.jay@xxxxxxxxx>wrote:
> I didn't see this message come through, so my apologies if it is a
> duplicate post
>
> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
> I have a few test databases that are on the same box. They are reporting
> several hundred "Concurrency" alerts in DBA_ALERT_HISTORY each day. My
> first thought is that since the databases are rarely used, some scheduled
> jobs are triggering these alerts and I probably need to tweak the
> thresholds. The customer does not have Grid control or the database console
> setup for these databases. A sample of recent records in dba_alert_history
> is shown below. Can somebody explain to me why the alert is triggered for
> this metric when all of my warning_values for "Database Time Spent Waiting
> (%) are set to 30 (in DBA_THRESHOLDS)? And why do I see so many alerts for
> a value of 0? It would make sense to see a 0 when the alert is cleared, but
> I don't understand why I see so many zeros in a row.
>
> Thank you,
> Jay
>
> REASON
> TO_CHAR(TIME_SUG METRIC_VALUE
> ------------------------------------------------------------------------------------------
> ---------------- ------------
> Metrics "Database Time Spent Waiting (%)" is at 0 for event class
> "Concurrency" 04-22-2010 13:49 0
> Metrics "Database Time Spent Waiting (%)" is at 0 for event class
> "Concurrency" 04-22-2010 13:38 0
> Metrics "Database Time Spent Waiting (%)" is at 0 for event class
> "Concurrency" 04-22-2010 13:34 0
> Metrics "Database Time Spent Waiting (%)" is at 0 for event class
> "Concurrency" 04-22-2010 13:16 0
> Metrics "Database Time Spent Waiting (%)" is at 0 for event class
> "Concurrency" 04-22-2010 13:13 0
> Metrics "Database Time Spent Waiting (%)" is at 0 for event class
> "Concurrency" 04-22-2010 13:11 0
> Metrics "Database Time Spent Waiting (%)" is at 28.40031 for event class
> "Concurrency" 04-22-2010 13:05 28.4003091
>
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