Accessing the Flink Web UI

Scenario

After Flink is installed in an MRS cluster, you can connect to clusters and data as well as manage stream tables and jobs using the Flink web UI.

This section describes how to access the Flink web UI in an MRS cluster.

Impact on the System

Site trust must be added to the browser when you access Manager and the Flink web UI for the first time. Otherwise, the Flink web UI cannot be accessed.

Procedure

1. Log in to FusionInsight Manager as a user with FlinkServer Admin Privilege. For details, see Accessing FusionInsight Manager (MRS 3.x or Later). Choose Cluster > Services > Flink.
   

   If your MRS cluster requires Kerberos authentication, create a role with the FlinkServer administrator permission or the application viewing and editing permission, and bind the role to the user. Then, you can access the Flink Web UI. For details about how to create a role, see Creating a FlinkServer Role.

2. On the right of Flink WebUI, click the link to access the Flink web UI.
   Figure 1 Accessing the Flink Web UI
   

   The Flink web UI provides the following functions:

   • System management:
     • Cluster connection management allows you to create, view, edit, test, and delete a cluster connection.
     • Data connection management allows you to create, view, edit, test, and delete a data connection. Data connection types include HDFS and Kafka.
     • Application management allows you to create, view, and delete an application.
   • Stream table management allows you to create, view, edit, and delete a stream table.
   • Job management allows you to create, view, start, develop, edit, stop, and delete a job.