Session cluster management overview

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A session cluster provides an interactive environment for quickly starting and stopping Flink tasks. You can debug and test tasks in real time, monitor task status, logs, and outputs, and iteratively refine your Flink task code.

Permission description

  • Session clusters can only be created by super administrators or system administrators.

  • Session cluster owners can manage their session clusters, including editing, starting, disabling, and deleting them.

Limits

  • The session cluster feature is available only to customers on the latest architecture. For more information, contact the product operations team.

  • Each tenant can create only one session cluster.

Session cluster management entry

  1. Navigate to the Dataphin home page and single click the Management Center in the top menu bar.

  2. Proceed with the following steps to access the Session Cluster management page.

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Session cluster management page overview

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Parameter

Description

Create and refresh session cluster

  • Create a session cluster: Click + Create Session Cluster. For more information, see .

Note

A tenant may only create one session cluster at this time.

  • Refresh: To update the session cluster list, single click image.png.

Session cluster resource group

Shows the available resources of the session cluster resource group, including total CPU and total memory allocations.

Session cluster list

Lists cluster details such as name, owner, memory, CPU, status, and last update time. You can perform the following operations:

  • Start: Activate a session cluster that is currently disabled.

  • Disable: Deactivate an active session cluster.

    Important

    Disabling a session cluster automatically terminates all tasks running on it.

  • Edit: Modify the settings of a disabled session cluster.

  • Navigate to the Flink UI: Open the Flink UI for the session cluster to view its details.

  • Start/stop logs: View the start and stop logs of the session cluster, including operation types, details, and log entries.

    Note

    You can view session cluster start/stop logs from the past week.

  • Delete: Remove a disabled session cluster from the system.

Session cluster status description

Status

Description

Starting

The session cluster is being initialized after creation.

Running

The session cluster is running and available for real-time task debugging.

Disabling

The session cluster is being deactivated. All running jobs are automatically terminated.

Disabled

The session cluster has been deactivated and is unavailable for task debugging.

Failed

The session cluster failed to initialize, or its health status could not be determined during operation, preventing normal job termination during deactivation. For details, single click image.png.