Storage Metrics#

Starting in 2.1, ESS includes a Storage Metrics feature to gather the following metrics:

The total number of Pods.
The number of “created” Pods (i.e., Pods that have been created and confirmed).
The number of “deleted” Pods (i.e., Pods that have been soft-deleted, i.e., marked as deleted).

The Storage Metrics is run as a Kubernetes CronJobs . To modify its schedule, see Modify Storage Metrics Schedule.

Observability#

Pruning jobs uses JSON logging and emits the following info log entries:

Storage metrics collected

`countPodAll`	Total number of Pods (both “created” and “deleted”)
`countPodCreated`	The number of Pods that have been created and confirmed.
`countPodDeleted`	The number of Pods that have been marked as deleted.
`durationMilliseconds`	Time taken to run the queries to gather the metrics.

Prune emits Prometheus metrics with the following labeled names.

All of the following are prefixed with application_com_inrupt_storage_metrics_MetricsCollector_.

`{metricType=”count”, resourceType=”pod”, resourceStatus=”all”}`	Total number of Pods (both “created” and “deleted”)
`{metricType=”count”, resourceType=”pod”, resourceStatus=”created”}`	The number of Pods that have been created and confirmed.
`{metricType=”count”, resourceType=”pod”, resourceStatus=”deleted”}`	The number of Pods that have been marked as deleted.
`collect`	Time taken to run the queries to gather the metrics.

When OpenTelemetry is configured, the application emits a single span named collect with the following attributes.

`countPodAll`	Total number of Pods (both “created” and “deleted”)
`countPodCreated`	The number of Pods that have been created and confirmed.
`countPodDeleted`	The number of Pods that have been marked as deleted.
`durationMilliseconds`	Time taken to run the queries to gather the metrics.