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Managing Lite Cluster Nodes

Updated on 2024-12-31 GMT+08:00

Nodes are fundamental components of a container cluster. On the resource pool details page, click the Nodes tab to replace, delete, reset, or renew nodes. When you hover over a node name, the resource ID is displayed. You can use the resource ID to query bills or billing information of yearly/monthly resources in the Billing Center.

Deleting, Unsubscribing from, or Releasing a Node

  • For a pay-per-use resource pool, click Delete in the Operation column.

    To delete nodes in batches, select the check boxes next to the node names, and click Delete.

  • For a yearly/monthly resource pool whose resources are not expired, click Unsubscribe in the Operation column. You can unsubscribe from nodes in batches.
  • For a yearly/monthly resource pool whose resources are expired (in the grace period), click Release in the Operation column. Nodes in the grace period cannot be released in batches.

    If the delete button is available for a yearly/monthly node, click the button to delete the node.

NOTE:
  • Before deleting, unsubscribing from, or releasing a node, ensure that there are no running jobs on this node. Otherwise, the jobs will be interrupted.
  • If there are abnormal nodes in a resource pool, delete, unsubscribe from, or release these nodes and add new ones for substitution.
  • If there is only one node, it cannot be deleted, unsubscribed from, or released.

Renewing a Subscription, Enabling Auto-Renewal, or Modifying Auto-Renewal

For yearly/monthly nodes, you can renew them, enable auto-renewal, and modify auto-renewal in the Nodes tab. You can also perform batch operations on nodes.

Replacing a Node

In the Nodes tab, locate the node to be replaced. Click Replace in the Operation column. No fee is charged for this operation.

Check the node replacement records on the Records page. Running indicates that the node is being replaced. After the replacement, you can check the new node in the node list.

The replacement can last no longer than 24 hours. If no suitable resource is found after the replacement times out, the status changes to Failed. Hover over to check the failure cause.

NOTE:
  • The number of replacements per day cannot exceed 20% of the total nodes in the resource pool. The number of nodes to replace cannot exceed 5% of the total nodes in the resource pool.
  • Ensure that there are idle node resources. Otherwise, the replacement may fail.
  • If there are any nodes in the Resetting state in the operation records, nodes in the resource pool cannot be replaced.

Resetting a Node

In the Nodes tab, locate the node you want to reset. Click Reset in the Operation column. You can also select the check boxes of multiple nodes and choose More > Reset above the node list to reset multiple nodes.

Configure the parameters described in the table below.

Table 1 Parameters

Parameter

Description

Operating system

Select an OS from the drop-down list box.

Configuration Mode

Select a configuration mode for resetting the node.

  • By node percentage: the maximum percentage of nodes that can be reset at a time
  • By instance quantity: the maximum number of nodes that can be reset at a time

Check the node reset records on the Records page. If a node is being reset, its status is Resetting. After the reset is complete, the node status changes to Available. Resetting a node will not be charged.

NOTE:
  • Resetting a node will impact the operation of related services. During the reset process, local disks and Kubernetes tags in the node will be cleared.
  • Only nodes in the Available state can be reset.
  • A single node can be in only one reset task at a time. Multiple reset tasks cannot be delivered for the same node at a time.
  • If there are any nodes in the Replacing state in the operation records, nodes in the resource pool cannot be reset.
  • When the driver of a resource pool is being upgraded, nodes in this resource pool cannot be reset.
  • After resetting a node, there is a possibility that the driver for the GPU and NPU specifications will be upgraded.

Repairing a Node

NOTE:

This is a whitelist function. Submit a service ticket for a trial as you need.

If a hardware fault occurs on a resource pool node, the repair button becomes available. You can click it to repair the node. After the node is repaired, the node status changes to Available.

Replacement and redeployment are supported.

Replacement: Replace the hardware to implement in-place repair, which takes a long time. Use this for non-local disk faults, so the local disk data is retained.

Redeployment: Replace the server to rectify the fault, which takes a short time. However, the local disk data will be lost.

NOTE:
  • When a node is being repaired, it does not work. Ensure that there are no running services on the node. If the services cannot be stopped, do not repair the node. Contact technical support.
  • If redeployment is selected, the instance will be stopped immediately and migrated to a new server, and the local disk data will be cleared. Migrate the service and back up the data beforehand.

Authorizing O&M Operations

During fault locating and performance diagnosis, you need to authorize certain O&M operations. To do so, go to the resource pool details page, click the Nodes tab, locate the target node, and choose More > Authorize in the Operation column. In the displayed dialog box, click OK.

Figure 1 Authorization
NOTE:

The Authorize button is usually not available, but it will become available once Huawei technical support applies for O&M operations.

After the O&M process, Huawei technical support will disable the authorization, so you do not need to do anything else.

Restarting a Node

Locate the target node. Choose More > Reboot in the Operation column. You can also select node names and click Reboot above the node list to restart nodes in batches. Restarting a node will affect running services.

Adding, Editing, or Deleting Resource Tags

Use resource tags for easy billing management.

In the Operation column of the target node, choose More > Edit Resource Tag.

You can also select node names and choose More > Add/Edit Resource Tag or Delete Resource Tag above the node list to manage tags in batches.

Figure 2 Adding, editing, or deleting resource tags

Exporting Node Data

You can export the node information of a Lite resource pool as an Excel file.

Select the target nodes, choose Export > Export All Data to XLSX or Export > Export Part Data to XLSX above the node list, and click in the browser to view the exported Excel file.

Upgrading a Driver

You can upgrade the driver version of a single node in a Lite resource pool or upgrade the driver versions of multiple nodes in batches. For details, see Upgrading the Driver of a Lite Cluster Resource Pool Node.

Searching for a Node

In the search box on the node management page, you can search for nodes by node name, status, batch, driver version, driver status, IP address, node pool, or resource tag.

Specifying Node Information to Display

On the node management page, click in the upper right corner to customize the information to display in the node list.

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