Create a new session cluster

Limits

Each tenant is limited to one session cluster.

Only super administrators and system administrators can create session clusters.

In the Create a new session cluster dialog box, configure the following parameters:

Parameter	Description
Basic information
Cluster name	Enter the cluster name. Supports letters, numbers, and underscores (_). Maximum: 64 characters.
Owner	Select the cluster owner.
Engine version	Select the Flink engine version. Currently only Flink 1.15 is supported.
Resource configuration
Task Managers quantity	Number of Task Managers. Positive integer. Minimum: 1. Default: 1.
Slot quantity	Number of slots. Positive integer. Minimum: 1. Default: 8.
Job Manager CPU Cores	CPU cores for the Job Manager. Positive integer. Minimum: 1. Default: 1.
Job Manager Memory	Memory for the Job Manager in GB. Positive integer. Minimum: 1. Default: 4.
Task Manager CPU Cores	CPU cores per Task Manager. Positive integer. Minimum: 1. Default: 2.
Task Manager Memory	Memory per Task Manager in GB. Positive integer. Minimum: 1. Default: 8.
Runtime parameters
Runtime parameters	Enter runtime parameters for the session cluster. These serve as defaults when testing Flink tasks. Important Task-level runtime parameters override session cluster runtime parameters.

Important

Total CPU and memory must not exceed the session cluster resource group limits.

The session cluster's required CPU usage = (Task Managers quantity x Task Manager CPU Cores) + Job Manager CPU Cores
The session cluster's required memory usage = (Task Managers quantity x Task Manager Memory) + Job Manager Memory

Click OK.

The session cluster starts automatically. Monitor its status in the session cluster list.

After the session cluster starts, develop and test Flink real-time tasks. Real-time mode testing.