Data hole consideration in the alert violation computation

Ops Center Analyzer Detail View REST API Reference Guide

Version
11.0.x
Audience
anonymous
Part Number
MK-99ANA004-10

If a data hole is detected while importing the time-series data into the Analyzer detail view database through the Database API or Data Importer, the importer considers the data hole as a valid nonviolated (green) value when evaluating the time-series data.

Example:
  • Alert definition criteria = 2/5 (2 violations in 5 minutes)
  • Alert definition threshold = greater than 10
  • Inserted time-series data = 15, 20, null, null, null, null, 40, 50
  • Data interval = 1 minute
  • Data start time = 10:10 (HH:MM)

In the above scenario, violations are reported at time stamp = 10:11, 10:12, 10:13, 10:14, 10:17.

Even though 10:12, 10:13, 10:14, and 10:15 are a data hole, they are considered during alert evaluation as nonviolating values.

State changes are reported at = 10:11 (Green --> Red), 10:15 (Red --> Green), and 10:17 (Green --> Red).