Now that you’ve created an SLO on an ALB TargetGroup, consider some similar SLOs you can create using similar data.

Error Rate

Create a Ratio SLO on the error rate of your TargetGroup, based on HTTP status codes

  • Good count
    • Metric Name: HTTPCode_Target_2XX_Count
    • Statistic Function: Sum
  • Total count
    • Metric Name: RequestCount
    • Statistic Function: Sum

Availability

A Threshold SLO tracking whether a sufficient number of service instances are staying up and passing health checks. Can catch and measure the impact of brief outages that may occur during planned or unplanned restarts, such as during releases or incident response actions.

  • Metric Name: HealthyHostCount
  • Statistic Function: Minimum

Reachability / Traffic

Threshold SLO making sure that each instance of a service is receiving a minimum amount of traffic. A gap may indicate that traffic has stopped reaching a given instance – or the entire group.

  • Metric Name: RequestCountPerTarget
  • Statistic Function: Minimum