Age Metrics

Age, decay, and reaper metrics overview

Prometheus in Hydrolix

The Hydrolix stack includes Prometheus, an open-source metrics database. Hydrolix continuously updates its Prometheus instance with metrics information.

You can query, view, and actively monitor this information using a stack's Grafana instance, or you can access it with your own monitoring platform. See Prometheus Integration for more information about setting up Prometheus with an external server.

Use the Prometheus UI

Prometheus has its own web-based UI.

This view is a basic metric view, suitable for quickly entering queries and seeing simple, graphed results. This feature is available in Hydrolix without any additional setup.

Navigate to https://<YourHostname>/prometheus to view dashboards.

For more information about Prometheus metric types, refer to the Prometheus documentation.

Decay/Reaper metrics

Metric Name	Type	Components	Purpose
query_count (deprecated)	Counter	Reaper	Count of Reaper calls to the catalog.
query_failure (deprecated)	Counter	Reaper	Count of failed Reaper catalog calls.
query_latency_summary (deprecated)	Summary	Reaper	Latency of calls to the catalog.

For a complete list of the metrics used by Hydrolix, including Prometheus, RabbitMQ, and others, see All Metrics.