Cluster actions

This article describes actions available for working with an ADQM cluster in the ADCM interface.

Overview

You can find cluster actions on the Clusters page.

Clusters page
The Clusters page

The Clusters page displays a table with the following columns:

  • Name — name specified during the cluster creation.

  • State — the current state of the cluster (created, installed, or upgradable).

  • Product — product name.

  • Version — version of a bundle used to install the cluster.

  • Description — description specified during the cluster creation.

  • Concerns. The icon concern default indicates that the cluster is configured correctly. If critical errors are detected in the cluster configuration, the icon image is changed to concern red dark concern red light — when you hover over it, a pop-up window appears showing an error description with a link that you can follow to perform the required configuration.

  • Actions. The column shows icons for managing a cluster:

    • actions default dark actions default light — opens the drop-down list that offers actions to manage the cluster.

    • upgrade default — indicates whether a new version of a bundle is available and allows you to upgrade the cluster version.

    • delete default — deletes information about the cluster from ADCM (it does not remove ADQM or make any changes to hosts that belong to the cluster).

You can click icons described above to perform the corresponding cluster actions. When an action starts, ADCM displays its execution process and result on the Jobs page. From this page, you can navigate to a page with details on an individual job (by clicking a job name) to see inner steps of that job execution and analyze errors if they occur.

The Jobs page
The Jobs page

Manage a cluster

Click the icon actions default dark actions default light to open a drop-down list with available actions and select an action to run it.

Cluster actions
Cluster actions

When you choose an action, ADCM displays a dialog window to confirm the choice. In this dialog window, you can select the Verbose checkbox to see additional execution details on the Jobs page.

Action confirmation
Action confirmation

A set of available actions depends on the cluster state:

  • For a new cluster (the cluster state is created), an available action is:

    • Install — installs all cluster services.

  • After a cluster is installed (the cluster state is installed), the following actions are available:

    • Check — checks if all components of the installed cluster work correctly.

    • Enable Kerberos — enables Kerberos authentication. After this action has been performed, the Disable Kerberos (disables Kerberos authentication) and Reconfig Kerberos (applies changes made to Kerberos configuration files and settings) actions appear.

    • Reinstall status-checker — reconfigures and restarts the status checker for all cluster services. Use this action when migrating a cluster to a new ADCM server.

  • For a cluster prepared for upgrade (the cluster state is upgradable), an available action is:

Upgrade a cluster

To upgrade an ADQM cluster version, you need to upload a new bundle first — see the step Upload a cluster bundle to ADCM in the Create a cluster article.

After a new bundle is loaded, open the Clusters page. The icon upgrade default becomes active for the ADQM cluster in the Actions column. Click this icon — in the Upgrade Cluster window that opens, select a version to upgrade ADQM and click Upgrade.

Start upgrade
Start upgrade

In the confirmation dialog window that appears, click Run.

Upgrade confirmation
Upgrade confirmation

As a result, ADCM changes the cluster state to upgradable — the cluster is ready for upgrade. Click the icon actions default dark actions default light in the Actions column and select the Upgrade action.

Run the upgrade action
Run the upgrade action

In the dialog that opens, click Run to confirm the upgrade. Once the upgrade process is complete, ADCM will change the cluster state to installed.

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