Working with Multiple Kubernetes Compute Server Connection

Kyvos supports multiple Compute Server Clusters, each associated with a dedicated K8S cluster or user pool. 

You can define multiple compute server cluster connections, and while processing a semantic model job, you can select the required connection while adding a semantic model job.  

If you want complete resource isolation, you can assign different compute server cluster connections for each semantic model process. This ensures that workloads remain isolated, performance is predictable, and a high-priority semantic model can run independently. 

Note

  • This feature is supported only with a compute master enabled cluster.

  • When creating a new node pool to add to a connection, ensure the configuration is the same as the existing user pool.

  • After adding a taint <key>=<value>:<effect>, ensure that the ‘value’ is set to ‘true’ and the ‘effect’ is set to 'NoSchedule.' For example, ComputeWorkerOnly=true:NoSchedule

  • Restarting the analytical server is necessary after creating the node pool to ensure it appears on the connection page.

To add multiple Kubernetes Compute Server connections, perform the following steps.

  1. From the Toolbox, click Connections.

  2. From the Actions menu ( ⋮ ) click Add Connection. The Connections page is displayed.

  3. After you have entered the parameters described in the table below, click the Test button in the top left to validate the connection settings.

  4. If the connection is valid, click the Save button.

  5. To refresh connections, click the Actions menu (⋮) at the top of the Connections column and select Refresh.

Parameter/Field

Comments/Description

Name

Enter a unique name for the connection.

Category

Select the Compute Server option.

Provider

Select the Kubernetes option.

Kubernetes Cluster

Select the Kubernetes cluster from the list.

Agent Pool  

Select the AKS agent pool for the new connection from the list.

User Pool

Select the AKS User pool from the list where all Kyvos workloads will run.

User Pool Node Memory

The number of user pool node memory is prepopulated (read-only mode).

User Pool Node Core

The number of user pool node cores is prepopulated (read-only mode).

User Pool Maximum Node

It defines the limit on the number of nodes available for the Kyvos workload. 

You can update it as needed.

Resource Group

This is an AKS cluster resource group in read-only mode. It is shared for all Kubernetes-based connections, including the default read-only connection.

Namespace

Kyvos workload-specific namespace where all the Kyvos pods will run. This is read-only mode and is shared for all Kubernetes-based connections, including the default connection, which is also read-only.

Taint

Enter the user pool taint first or key name.
For example, if added taint in node pool is ComputeWorkerOnly=true:NoSchedule then the first name will be ComputeWorkerOnly

Compute Server Memory Config Mode

Select one of the following memory mode configurations for the compute server process from the list:

  • Auto: Kyvos will automatically calculate both heap and tabular store memory based on the total memory of the user pool node. 

  • Manual: The user can provide heap and tabular store memory within the limit of the total memory of the user pool node 

Concurrent Task Mode

Select one of the following concurrent tasks that can run on the compute server: 

  • Auto: Kyvos will automatically calculate the user pool node capacity based on the total memory and total cores of the user pool, using the predefined formula.

  • Manual: The user can provide a concurrent tasks limit for the compute server within the total cores limit of the user pool node.

Compute Server Startup Count

The user can specify the number of compute server instances to create when launching the semantic model process job.

Is Data Process

The Is Data Process checkbox is selected by default.

Defines that the connection can be used for the semantic model process. The connection will be listed for the semantic model process during job scheduling.

Properties 

Click Properties to view or set properties.

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