Sticky element alarm state caused by correlation rules
Affected versions
From DataMiner 10.2.0 onwards.
Cause
Correlation rules may prevent an element's alarm state from updating correctly. When a notice, such as Alarm history exceeded 100 alarms. It is advised to revise your alarm threshold definitions
, is stored for an element, it can interfere with how the alarm state is handled after alarms clear.
This can happen when correlation rules with conditions like count(*) > 0
are in place.
Fix
No fix is available yet.
Workaround
Exclude notices through the alarm filter of the correlation rule.
Restart the element.
Description
An element's alarm state remains at a higher severity level even after the alarms have cleared. For example:
The element shows no active alarms, but its state is not marked as normal.
The element has only minor alarms but still displays a major alarm state.