Numaflow UI Overview¶

Numaflow provides a built-in user interface (UI) for monitoring and managing your data pipelines.

Accessing the Numaflow UI¶

To access the Numaflow UI, use the following command to port-forward the Numaflow server:

kubectl -n numaflow-system port-forward deployment/numaflow-server 8443:8443

Once port-forwarding is active, open your browser and navigate to https://localhost:8443.

UI Views¶

We have already walked through some of the views of UI to monitor pipelines in the Quick Start guide.

Cluster View
Namespace View
Simple Pipeline View

Vertex View¶

Vertex View provides detailed insights into each pipeline vertex. The following features are available:

Pods View¶

Inspect the status and details of pods running in your pipelines.

Spec¶

View the specification of the vertex.

spec view

Processing Rates¶

See the last 1m, 5m, and 15m processing rates for each partition of the vertex.

If a Prometheus server is configured, you can click on the number to see more details in the Metrics tab.

Processing Rates

Kubernetes Events¶

View Kubernetes events related to the vertex.

k8s events

Errors¶

Review errors detected in your pipelines for quick debugging.

Buffers¶

See buffer details for every partition, including buffer length, usage, and number of pending messages. Click on the pending number to view complete pending metrics in the Metrics tab.

Buffer

Logs¶

View logs for different containers of pods to help diagnose issues.

Metrics¶

Monitor pipeline metrics for performance.