I was trying to create alerts for EC2 CPU usage. The metrics for aws.ec2.cpu.total.pct is appearing fine in Kibana.
However, when I am trying to create an alert for the following condition and run a preview
FOR EC2 Instances
WHEN CPU usage
IS ABOVE 90
FOR THE LAST 1 minute
I am getting the following message
There were 0 instances across 3 awsEC2s that satisfied the conditions of this alert in the last hour.
I have around 12 EC2 instances. why its showing on 3awsEC2s.