Dynatrace Managed Cluster API or Self Monitoring Metric to expose used & quotas set for HU/DEM/DDUs/...

Platform Dynatrace Managed
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1

We need to be able to monitor consumed host unit/DEM/DDU licenses. Currently, Dynatrace only provides an API for UI users which provides these values (/rest/clustermanagement/license).

So we would like to be able to create alerts whenever we consume 90% of the assigned licenses.

2

Hi Patrik,

For creating alerting, you can use the following metrics:

  • To control HU: dsfm:billing.hostunit.connected
  • To control DEMs:     builtin:billing.apps.web.sessionsWithReplayByApplication (DEMs for usersessions with session replay), builtin:billing.apps.web.sessionsWithoutReplayByApplication (DEMs for usersessions without session replay), builtin:billing.apps.web.userActionPropertiesByApplication (DEMs with useractions properties) and builtin:billing.synthetic.actions (DEM for synthetic)
  • To control DDUs: builtin:billing.ddu.serverless.total (for Serverless), builtin:billing.ddu.metrics.total: (for custom metrics), builtin:billing.ddu.log.total (for logs), and builtin:billing.ddu.events.total (for events).

Hope it helps.

Regards,

Elena.

3

Hi Elena,

  • To control HU: dsfm:billing.hostunit.connected
    • Query in local self-monitoring environment: dsfm:billing.hostunit.connected:splitBy(“dt.tenant.uuid”):max:splitBy():sum
    • This does not show how many host units are licensed within the cluster. So, an alert needs manual maintenance and must be adopted with each license change.
  • On DEMs:
    • These are environment specific metrics, so a cluster-wide alert is not possible.
  • On DDU:
    • These are environment-specific metrics, so a cluster-wide alert is not possible.
    • DDU consumption is reported per reporting interval, e.g. 1 minute.
    • Licensing is based on consumption over time. E.g. since the setup of the cluster. Such an aggregated alerting capability is not provided by Dynatrace.

So, I can agree with you that alerting on HU is theoretically possible, even if it is not comfortable. It is not possible for the others.