Migrate from Legacy to Supported High Availability

Customer Managed Applies to customer-managed instances of Alation

This article outlines how to migrate replication from Legacy Setup to Current Setup (Alation v 4.8).

Migrate from Legacy to Supported HA

Important

Do not run this step until you are ready to migrate to new HA and have validated port connectivity on 2022 on both Primary and Secondary.

Step 1: Generate keys

  1. From both the Primary and the Secondary, run:

    sudo /etc/init.d/alation shell
    alation_action cluster_generate_keys
    

    You are prompted with a message to run replication helper directly afterward.

  2. Type YES to continue.

Step 2: Run the Replication Helper

  1. From both the Primary and the Secondary, run:

    sudo /etc/init.d/alation shell
    replication_helper
    
  2. You are prompted for the public exchange key for this server. Enter the key.

  3. You are prompted for the IP address of this server. Enter the IP Address in ipv4 format. For example: 10.0.0.1

Step 3: Run a one-time sync of files and configurations

Performing this step one time validates that the Secondary is able to connect to the Primary to sync files and configurations.

From the Secondary, run:

sudo /etc/init.d/alation shell
alation_action cluster_replicate_files

Step 4: Restart the Sync Deamon

  1. Restart the Sync Deamon to force the daemon to reload and use the settings above.

  2. From the Secondary, run:

    sudo /etc/init.d/alation shell
    sudo /etc/init.d/supervisord restart