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Home > Success Center > Server & Application Monitor (SAM) > Custom Properties with values of NULL are not evaluated in Alerts

Custom Properties with values of NULL are not evaluated in Alerts

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Created by Riggs Clough, last modified by Laura C on Oct 05, 2017

Views: 46 Votes: 1 Revisions: 12

Updated October 5, 2017

Overview

This article provides information about configuring alerts that target custom properties and why they do not evaluate NULL custom property values.  When objects are discovered through the node discovery process, the custom property fields are NULL, until a value is set for them.
 

Environment

All versions of Orion products

Detail

 

You need to verify that every node has a value assigned to the Custom Property in question. If a value is left NULL, the alert does not evaluate it as part of the condition.

 

For example, if you set an alert to have the following custom property condition:

Node - ServerGroup - is not equal to - "production"

  • This would trigger on a custom property value for ServerGroup of "dev"

  • This would not trigger on a custom property value that is left as a NULL value

 

The workaround is to add another Condition for "Node {custom property} is empty".

 

More information on this workaround is found in the following article:

https://support.solarwinds.com/Success_Center/Network_Performance_Monitor_(NPM)/Alerts_not_triggering_when_custom_property_value_is_NULL

 

 

 

 

Last modified
09:48, 5 Oct 2017

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