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Applies to: (tick) Kyvos Enterprise  (tick) Kyvos Cloud (SaaS on AWS) (tick) Kyvos AWS Marketplace

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Note

  • Keep the following things handy during disaster recovery, depending on what is affected in your cluster.

    • New certificates are applicable if existing settings (domain/subdomain) are changed after recovery.

    • Production license as per new BI nodes in case any BI server impacted

  • You must use the disaster recovery capability in any of the following scenarios: 

    • If Kyvos Manager, BI Server, or Query Engine nodes are affected. 

    • If only the Kyvos Manager nodes are affected. 

    • If Kyvos Manager and all Kyvos nodes (BI Servers, Query Engines, Web Portal, and Postgres Server) are affected. 

  • If only the BI Server or Query Engine nodes are affected, then add a node for that service, and the cluster can be restored. You will not need to use disaster recovery capability for this case.

  • If you enable TLS for Kyvos Manager and Kyvos application, the TLS option is not applicable during the Disaster Recovery restoration. After successful restoration, the TLS-related certificates are restored, and you can continue with the TLS option. 

Disaster recovery through the guided flow on Kyvos Manager

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  1. Click the Uninstall button corresponding to Step 12: Uninstall Zookeeper in the Restore Cluster area.

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Note

The option to Uninstall Zookeeper is displayed only when multiple BI Servers are installed on the cluster.

  1. On the displayed confirmation dialog box, provide your Kyvos Manager password, and click the Uninstall button.

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    A new browser tab is opened, showing

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  1. uninstall Zookeeper operation details and status. You may switch back to the Disaster Recovery browser tab

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  1. once the operation is completed

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  1. .

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  1. Click the Delete button corresponding to Step

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  1. 3: Delete Offline Nodes.

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  2. From the Delete Offline Nodes dialog box, select the nodes you want to delete and provide your Kyvos Manager Password.
    Note that you will see only the Offline nodes in this list.

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  1. Click the Delete button.

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Note

Once deleted, nodes cannot be retrieved.

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You may switch back to the Disaster Recovery browser tab.
Once the operation is completed, you will see the status shown in the following figure. At this point, you will be able to perform the next step for adding new nodes.

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  1. Click the Add button corresponding to Step

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  1. 4: Add Nodes.

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  1. On the Add Nodes

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  1. dialog box

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  1. ,

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  1. click the

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  1. Next button.

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  1. Ensure that you can add as many new nodes

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  1. as you need.

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  2. Once done, provide your Kyvos Manager Password, and click the Add button.

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  1. A new browser tab is opened, showing add node operation details and status. You may switch back to the Disaster Recovery browser tab.
    Once the operation is completed, you will see the status shown in the following figure. At this point, you will be able to perform the next step for installing Zookeeper.

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  1. Click the Install button corresponding to Step

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  1. 5: Install Zookeeper.

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  2. Provide your Kyvos Manager Password on the confirmation boxand click the Install button.

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  1. A new browser tab is opened, showing

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  1. install Zookeeper operation details and status. You may switch back to the Disaster Recovery browser tab

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  1. once the operation is completed

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  1. .

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  2. Click the Switch button corresponding to Step

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  1. 6: Switch Repository. You will be redirected to the Switch Repository page.
    Refer to the Manage Kyvos Repository section to learn more.

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Important

  • After performing Disaster Recovery, if you want to enable TLS, you need to restart Kyvos Manager. To do this, go to Terminal, and run the stop-km.sh and then start-km.sh).

  • When Kyvos Manager HA is enabled and Managed zookeeper is used then after completing the Disaster Recovery activity, stop and start Kyvos Manager from terminal (not from Kyvos Manager UI) irrespective of whether TLS is enabled or not. Prior to the Kyvos 2024.1 release, Kyvos Manager restart is required only when TLS is enabled.

  • After completing disaster recovery, ensure that the following snapshots are pushed from Kyvos Manager. To do this, navigate to Utilities > Update Snapshot Bundles.

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