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【Spec Change Notice】New metric targets for AWS・ALB Integration

Mackerel team CRE Inoue (id:a-know) here. Today’s announcement is centered around changes to specifications.

As the title states, newly obtainable metric targets are being added for AWS・ALB Integration. With these metrics, you’ll be able to monitor various percentile metrics related to the load balancer response, allowing for a more flexible response.

Specification changes

Load balancer metrics

  • Before spec changes

    • The following metrics were obtainable related to Target Response Time.
    • alb.response.time
  • After spec changes

    • The following metrics will be obtainable related to Target Response Time.
    • alb.response.time
    • alb.response.time_p90
    • alb.response.time_p95
    • alb.response.time_p99

Target group metrics

  • Before spec changes

    • The following metrics were obtainable related to Target Response Time per Target Group.
    • alb.response_per_group.TARGET_GROUP_NAME.time
  • After spec changes

    • The following metrics will be obtainable related to Target Response Time per Target Group.
    • alb.response_per_group.TARGET_GROUP_NAME.time
    • alb.response_per_group.TARGET_GROUP_NAME.time_p90
    • alb.response_per_group.TARGET_GROUP_NAME.time_p95
    • alb.response_per_group.TARGET_GROUP_NAME.time_p99

※ Enter the target group name in place of TARGET_GROUP_NAME.

Effects

With these specification changes, the maximum number of obtainable metrics will increase from 15 + 10 × (number of target groups) to 18 + 13 × (number of target groups). And even if there is only one target group, it will be converted into 2 micro hosts if the limit is exceeded (For more on the conversion of hosts when limits are exceeded, check out the FAQ・Handling of host conversion when plan limits are exceeded - Mackerel Docs).

Metrics obtained with AWS Integration can be freely selected in the configuration. Note that metrics will be retrieved by default and you can adjust as needed.

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Scheduled release date

The release that will include these specification changes is scheduled for Tuesday, April 14th, 2020 (JST).

This function was implemented at the request of Mackerel users. We greatly value your feedback (Feel free to contact our support team through the Mackerel Web console).