This topic describes how to view cluster information, such as status, configuration, and services. It also describes how to modify a cluster's post-processing script and password.
View cluster information
Log on to the E-HPC console.
In the left part of the top navigation bar, select a region.
In the left-side navigation pane, click Cluster.
On the Cluster Details page, select a tab to view the corresponding information.
Tab
Description
Overview
The running status of service components in the cluster. This includes node information, shared storage, cost estimates, custom service components, and cluster activities. Use this page to understand the overall status of the cluster and view logs and statistical analysis.
Cluster Configuration
View the basic, network, and version information of the cluster. You can also modify some basic information. For more information, see Modify cluster configuration.
Control Services
View the status of the cluster scheduler, domain accounts, domain name resolution configurations, and the real-time status of related services. You can also view details of the control plane nodes, such as instance ID, instance type, billing method, image ID, and operating system.
Custom Services
View a list of all logon nodes in the cluster and their details. This includes node status, service endpoints, and custom parameters.
Software Applications
View a list of software applications installed in the cluster. This includes their names, versions, statuses, and creation times.
Modify cluster configuration
Log on to the E-HPC console.
In the left part of the top navigation bar, select a region.
In the left-side navigation pane, click Cluster.
On the Cluster Details page, click the Cluster Configuration tab.
In the Basic Information section, click Edit Basic Information.
In the dialog box that appears, configure the following parameters.
Configuration Item
Description
Cluster Name
Enter a name. This name appears in the cluster list to help you identify the cluster.
Cluster Post-processing Script
A script that runs after compute nodes are created. Use this script to perform custom initialization on the compute nodes.
Maximum Number of 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
The maximum number of cores allowed in the cluster. This parameter and the maximum number of nodes control the cluster size.
Cluster Deletion Protection
Enable or disable deletion protection for the cluster. If you enable this feature, you must disable it before you can release the cluster. This prevents you from accidentally releasing the cluster.
Resource Group
Resource groups help you manage resources. Modify this setting as needed. For more information, see Resource groups.
Verify that the information is correct and click OK.
Modify the cluster password
If you forget the password for an E-HPC cluster, you can set a new logon password. Perform this operation when no jobs are running.
This operation resets the root user password for logon nodes, control plane nodes, and compute nodes that are added during scale-out.
The passwords of existing compute nodes are not reset. Before you reset the password, release existing compute nodes and disable auto scaling for the cluster and queues. This prevents logon failures on newly added compute nodes. For more information, see Delete nodes and Auto scaling.
After you reset the password, you must go to the ECS console to restart the ECS instances in the cluster for the new password to take effect. Restarting an instance from within its operating system is not effective. For more information, see Restart an instance.
Go to the Cluster List page.
Log on to the E-HPC console.
In the left part of the top navigation bar, select a region.
In the left-side navigation pane, click Cluster.
On the Clusters page, find the destination 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 to complete the operation.
Click Confirm.
Log on to the cluster again with the new root user password to verify that the password was reset successfully.
For more information, see Connect to a cluster.
References
You can also modify cluster information by calling an API operation. For more information, see UpdateCluster.