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Web UI

Start Here​

Use REST API And Web UI as the main operations entry point. That page explains when to enable the HTTP service, which REST API pages to read next, and how Web UI fits into day-to-day operations.

This page focuses only on the Web UI screens themselves.

Access​

Before accessing the web ui we need to enable the http rest api. first you need to configure it in the seatunnel.yaml configuration file

seatunnel:
  engine:
    http:
      enable-http: true
      port: 8080

Then visit http://ip:8080/#/overview

Overview​

The Web UI of Apache SeaTunnel offers a user-friendly interface for monitoring and managing SeaTunnel jobs. Through the Web UI, users can view real-time information on currently running jobs, finished jobs, and the status of worker and master nodes within the cluster. The main functional modules include Jobs, Workers, and Master, each providing detailed status information and operational options to help users efficiently manage and optimize their data processing workflows. overview.png

Jobs​

Running Jobs​

The "Running Jobs" section lists all SeaTunnel jobs that are currently in execution. Users can view basic information for each job, including Job ID, submission time, status, execution time, and more. By clicking on a specific job, users can access detailed information such as task distribution, resource utilization, and log outputs, allowing for real-time monitoring of job progress and timely handling of potential issues. running.png detail.png

Realtime Observability​

On the Job Detail page, the DAG view can display realtime metrics for the recent window (3 minutes by default, up to 10 minutes):

  • Vertex busyness: busy and idle ratios for Source, Transform, and Sink vertices.
  • Edge downstream wait ratio: when the job inserts queues at async boundaries or before Sink IO, edges are colored and thickened by downstream wait ratio and queue fill ratio.
  • Interaction: click a vertex or edge to open the detail drawer and view realtime curves and key fields.

This capability requires the job to enable env.engine.observability or configure an option that auto-enables it, such as async_boundaries or split_sink_io. See Realtime Observability for configuration and metric semantics.

Finished Jobs​

The "Finished Jobs" section displays all SeaTunnel jobs that have either successfully completed or failed. This section provides execution results, completion times, durations, and failure reasons (if any) for each job. Users can review past job records through this module to analyze job performance, troubleshoot issues, or rerun specific jobs as needed. finished.png

Workers​

Workers Information​

The "Workers" section displays detailed information about all worker nodes in the cluster, including each worker's address, running status, CPU and memory usage, number of tasks being executed, and more. Through this module, users can monitor the health of each worker node, promptly identify and address resource bottlenecks or node failures, ensuring the stable operation of the SeaTunnel cluster. workers.png

Master​

Master Information​

The "Master" section provides the status and configuration information of the master node in the SeaTunnel cluster. Users can view the master's address, running status, job scheduling responsibilities, and overall resource allocation within the cluster. This module helps users gain a comprehensive understanding of the cluster's core management components, facilitating cluster configuration optimization and troubleshooting. master.png

Next Steps​