Metrics

Railway provides resource usage information on deployments within a service, which can be used to diagnose issues with a project's performance.

How it Works

For each service, Railway captures metric data. These metrics are then made available in graphs within a service's panel, under the metrics tab.

Metrics with multiple replicas

When a service runs multiple replicas, you can view metrics in two ways: Sum or Replica.

Note: Public network traffic metrics are only available in the Sum view.

Sum view

In Sum view, metrics from all replicas are combined. For example, if you have two replicas using 100 MB of memory each, the metrics tab will show 200 MB.

Replica view

In Replica view, you can see metrics for each replica individually. This is useful for diagnosing issues with specific replicas or spotting if some regions are under- over overutilized.

The total from all replicas may differ slightly from the Sum view due to rounding or overlapping instances during zero-downtime deployments.

Provided Metrics

The following metrics are provided:

• CPU
• Memory
• Disk Usage
• Network

Viewing Metrics

For information on how to view and read metrics, visit this guide.