[hobbit] Alerting on "non-green" events of a given duration

[Josh Luthman]

I don't see how it would be possible for Hobbit to differentiate between a
desired recycle and a bad recycle.  Is there any set time where the spam
definitions are done?  You should be able to schedule an alert to avoid the
unwanted alert if you do the updates at a certain time peroid.

On 2/19/08, Walter Appleby <walterappleby at yahoo.com> wrote:
>
> Scenario:
>      We have several mail servers that are doing spam filtering.  When
> they receive a spam definition update there is a brief recycle of the smtp
> services.  This causes Hobbit's smtp test to go "colorful" (red or yellow).
>
>      To avoid being notified every time there was a momentary blip due to
> this update cycle I setup an alert rule as follows:
>           PAGE=mail_servers
>                    MAIL <my address at my domain> SERVICE=smtp DURATION>2m
>
> This works as desired by suppressing alerts for times when the smtp
> service goes from green to red or yellow and then back to green in less than
> two minutes.
>
>
> PROBLEM:
>      The above rule does not alert me when the smtp service goes from
> green to red for 1 min, then red to yellow for 1 min, then yellow back to
> red for 1 min... etc.  In this case since no one event is longer than two
> minutes I'm not getting alerts even though my servers are non-green for a
> longer period of time.  The way I understand the DURATION keyword is that it
> keeps a timer on the present state (red, yellow, purple) and that when the
> state changes the timer is reset.  What I want is a way to keep track of the
> total duration of non-green events.  Whereas a blip when the smtp service
> recycles is acceptable,  I need to know if it struggles to return to green
> afterward.
>
> DESIRED STATE:
>      I want to be alerted when the smtp service is anything other than
> green for more than two minutes.  This could be a single red or yellow event
> lasting more than two minutes or it could be a string of connected red and
> yellow events that when combined are greater than two minutes in length.
>
> Any help you can offer is appreciated.  If you need more info or
> clarification please let me know.
>
> Thanks,
> Danny
>
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-- 
Josh Luthman
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Those who don't understand UNIX are condemned to reinvent it, poorly.
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