This topic describes how to view the status, configuration, and control services of a cluster, and how to modify its cluster post-processing script and password.
View cluster information
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Log on to the E-HPC console.
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In the left part of the top navigation bar, select a region.
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In the left-side navigation pane, click Cluster.
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On the Cluster Details page, select a tab to view its details.
Tab
Description
Overview
This tab provides an overview of the cluster's health and allows access to related logs and statistical analysis.
Cluster Configuration
You can view the basic, network, and version information of the cluster. You can also modify some basic cluster information. For more information, see Modify cluster configuration.
Control Services
You can view the running status of the scheduler, domain account, and DNS configuration, along with the real-time status of corresponding services. You can also view details of the control plane node, including its instance ID, instance type, billing method, image ID, and operating system.
Custom Services
You can view a list of all logon nodes in the cluster and their details, including node status, service endpoints, and custom parameters.
Software Application
You can view a list of software applications installed in the cluster, including their names, versions, statuses, and creation times.
Modify cluster configuration
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Log on to the E-HPC console.
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In the left part of the top navigation bar, select a region.
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In the left-side navigation pane, click Cluster.
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On the Cluster Details page, click the Cluster Configuration tab.
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In the Basic information section, click Edit.
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In the dialog box that appears, configure the following parameters.
Parameter
Description
Cluster Name
Enter a name. This name is displayed in the cluster list for easy identification.
Specify a cluster post-processing script
A script that runs after compute nodes are created. It is used to perform custom initialization on the compute nodes.
Maximum number of cluster nodes
The maximum number of nodes allowed in the cluster. This parameter and the maximum number of cores control the cluster size.
Maximum number of cores in the cluster
The maximum number of cores allowed in the cluster. This parameter and the maximum number of nodes control the cluster size.
Cluster Deletion Protection
Specifies whether to enable deletion protection. If enabled, the cluster cannot be released until protection is disabled. This prevents accidental deletion.
Resource Group
The resource group to which the cluster belongs. You can change the resource group as needed. For more information, see Resource groups.
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After you confirm the changes, click OK.
Reset cluster password
If you forget a cluster's logon password, you must reset it. Perform this operation when no jobs are running.
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This operation resets the root user password for the logon node, control plane node, and any new compute nodes added during scale-out.
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This operation does not reset the password for existing compute nodes. Before you reset the password, release all existing compute nodes and disable auto scaling for the cluster and its queues. This prevents logon failures on newly added nodes. For more information, see Delete nodes and Auto scaling.
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After resetting the password, you must restart the underlying ECS instances in the ECS console for the new password to take effect. Restarting the operating system from within the instance is not sufficient. For more information, see Restart an instance.
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Go to the Cluster List page.
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Log on to the E-HPC console.
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In the left part of the top navigation bar, select a region.
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In the left-side navigation pane, click Cluster.
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On the Cluster page, find the target cluster, click the
icon in the upper-right corner, and then select Reset Cluster Password. -
In the dialog box that appears, follow the on-screen instructions.
Enter a new password in the New Password and Confirm Password fields, and then click OK.
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Click OK.
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Log on to the cluster again with the new root user password to verify that the new password works.
For more information, see Connect to a cluster.
References
To modify cluster information by using an API, see UpdateCluster.