Merge 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.

Merge metrics

Metric Name	Type	Components
`merge_success`	Counter	Count of merge successes.
`merge_failure`	Counter	Count of merge successes.
`query_count`	Counter	Merge calls to the catalog.
`query_failure`	Counter	Merge failed catalog calls.
`query_latency_summary`	Counter	Latency in calls to catalog.
`query_latency_summary_count/sum`	Counter	Latency in calls to catalog.
`merge_duration_histo_bucket/count/sum`	Histogram	Merge processing duration, in milliseconds.
`merge_duration_summary`	Summary	Merge processing duration, in milliseconds.

Catalog

You can find more information about merge operations in your tables in the Catalog Metadata.

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