Re: Different Day/Night Thresholds in EM12c?
- From: Ethan Post <post.ethan@xxxxxxxxx>
- To: nathan.owen@xxxxxxxxxxxxxx
- Date: Thu, 24 Apr 2014 09:59:02 -0500
I don't use EM for monitoring so I can only describe one of my tricks here
and perhaps there is a way to implement in EM. I buffer all messages which
are not CRITICAL, so if you get 100 messages in 5 minutes, everything is
bundled into a single message. At night I change the interval from minutes
to hours, in fact I usually set it to a really high number and then just
have a job that delivers the buffer at 8AM. So first thing in the morning I
see all of the messages which came in during the night in a single email.
CRITICAL warnings still page (and dumps the buffer) and in some cases open
service desk tickets, however, I would really recommend you limit CRiTICAL
warnings. If you have good CPU monitoring in place then there is really no
reason to have a CRITICAL alert on things like the number of users and if
you do what you would do would be to set up active users at 120 as a
WARNING and 300 as CRITICAL, warnings would not get you out of bed. Hope
this makes sense.
On Wed, Apr 9, 2014 at 8:58 AM, Nathan Owen <nathan.owen@xxxxxxxxxxxxxx>wrote:
> Don:
>
> Interesting problem — one that I’d expect there might be a universal need
> for.
>
> As far as we can tell, there is no native EM12c UI-based facility for
> achieving what you are looking in any simple manner.
>
> It is possible to do this externally using EMCLI and the
> modify_threshold<http://docs.oracle.com/cd/E24628_01/em.121/e17786/cli_verb_ref.htm#autoId247>
> verb.
> You could write a cron based script that sweeps through and changes all
> the thresholds at your required time intervals.
>
> If there is a lot of interest in this kind of functionality might be a
> good candidate for Blue Medora’s next free EM12c plugin — lets call it the
> ‘EM12c Plugin for Threshold Maintenance'. We are wrapping up development
> of a free EM12c PostgreSQL plugin this month and are actively brainstorming
> on our next potential plugin contribution to the community.
>
> Thanks, Nathan
>
> Nathan Owen | Blue Medora | +1.616.719.4550 (w) | www.bluemedora.com |
> blog.bluemedora.com
>
> On Apr 8, 2014, at 1:57 PM, Don Seiler <don@xxxxxxxxx> wrote:
>
> Hello,
>
>
> I'm looking to have different thresholds for certain metrics depending on
> day/night (or peak/off-peak) hours in EM12c (12.1.0.3). I'm not having any
> luck clicking around the UI or googling for how this can be done within the
> EM12c UI framework. Is anyone doing anything like this?
>
>
> An example is that the Average Active Sessions critical threshold can be
> 120 during the day, but overnight we're OK with it going up to 300.
>
>
> Don.
>
> PS - For those on the OTN forums, I've posted the same question there:
> https://community.oracle.com/thread/3544752 I'll be sure to update both
> this list and that post with any solution.
>
> --
> Don Seiler
> http://www.seiler.us
>
>
>
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