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Trigger on single events

Solved810 views4th July 2023correlated alarms Correlation rules trigger on single events
0
Elvio Mendes398 31st May 2023 0 Comments

Hi Dojo

Is there use cases that we can look at to better understand the option "trigger on single events" when building correlation rules?

This would be useful for a use case that triggers when we have more than n alarms within a sliding window

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 4th July 2023

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Jarno Lernou [SLC] [DevOps Enabler]5.03K Posted 31st May 2023 2 Comments

Hi Elvio,

Nice to meet you!

Are you aware of our free Learning section on the Community? There's one dedicated recording on everything included in the Correlation module (DMS Correlation - DataMiner Dojo). At minute 22:55, the Alarm Filters are explained. This option in particular defines whether you want to act upon every change/update of the alarm. If this option is not checked the same correlated alarm will be updated instead of creating a new one.

For a use case, accompanied with a very neat explanation, I'd refer you to Correlation - Why isn't my script executed for every new alarm? - DataMiner Dojo

Kind Regards,

Jarno

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 4th July 2023
Elvio Mendes commented 31st May 2023

Hi Jarno many thanks for your reply!

How would we count the number of new alarm occurrences on the sliding window, instead of maximum number of concurrent active alarms that we had in the time window?

Jarno Lernou [SLC] [DevOps Enabler] commented 31st May 2023

I’m not sure if you I’m following but you can choose whether you create a new ‘Correlation’ alarm or not.

What I can also add is that the total number of alarms in a sliding window can be measured in the alarm console by applying the same filter and hit the Count button.

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