Update Alation to 2024.1

Customer Managed Applies to customer-managed instances of Alation

2024.1 Update Version Dependencies

Alation supports a direct update to version 2024.1 from the following previous versions:

  • 2023.3.x

  • 2023.1.x

Upgrade from Version 2022.4.x or Older

Direct update to 2024.1 is not supported from version 2022.4 and older versions. First, update Alation to a version that supports the direct update to 2024.1 and then perform a second update to 2024.1. Use the update instructions specific to your release.

2024.1 Release-Specific Information

Note

The full list of new features is available in Release Notes 2024.1 (General Availability).

PostgreSQL Upgrade to Version 13.13

In version 2024.1, Alation’s internal database and the Alation Analytics database were upgraded to version 13.13 to take advantage of new features and to fix vulnerabilities. The upgrade happens automatically during the update to version 2024.1. No additional action is required.

Update Known Issues

Reset Postgres Password

If you have a password set on the internal PostgreSQL database (Rosemeta), the update to 2023.1 will result in an error similar to the following:

WARN: unable to check pg-1: [DbConnectError] unable to connect to 'dbname='postgres' port=5432':
FATAL: password authentication failed for user "postgres"
password retrieved from file "/home/postgres/.pgpass"
ERROR: [056]: unable to find primary cluster - cannot proceed

Update to 2023.1 requires that the password on the internal PostgreSQL database should be cleared for the time of the update. The password can be set again after the update is completed. On how to set the Postgres password, see Set Password for Internal PostgreSQL Instances.

Use Cluster Splitting for HA Pair Update

The Alation update of an HA pair without splitting the cluster fails. We recommend upgrading HA instances using the cluster splitting upgrade method until this issue is resolved.

Update Alation to 2024.1

Use the steps in this section to update Alation to 2024.1 from versions 2023.3.x and 2023.1.x.

Note

If you are updating from release 2023.1.x and skipping release 2023.3.x, review the information specific to release 2023.3 in the corresponding release notes.

Follow the steps below to update. You may need to perform more or fewer steps depending on the release you are updating from. If a step is Alation version dependent, this is called out in the instructions.

Step 1: Scan Postgres

We recommend using the scan_postgres action to validate that the internal Postgres database is in a healthy state before the update. For steps, see How to Scan Postgres for Corrupted Indexes.

Note

If in your instance the Postgres scan runs on a schedule, you can check the scan-postgres.log file in /opt/alation/site/logs inside the Alation shell to check the Postgres state.

Step 2: Verify Backup Availability

Ensure you have a valid latest Alation backup.

Step 3: Update the Alation Application

Update instructions:

Step 4: Update Alation Connector Manager

This step applies if you are using Open Connector Framework (OCF) and OCF connectors.

Update Alation Connector Manager using the steps in Update Alation Connector Manager.

Step 5: Update Alation Analytics

This step applies if you are using the Alation Analytics application.

Use the steps in Update Alation Analytics V2 to update the Alation Analytics application.

Step 6: Rebuild Search Index

Rebuild your search index if:

  • Your search index hasn’t been updated since version 2022.4. Even if you’ve updated Alation from version 2023.3.x, the index may still be using the old search schemas.

Determine if Search Index Requires Rebuilding

To determine if your search index requires rebuilding:

  1. Use SSH to connect to the Alation server.

  2. Enter the Alation shell using the following command:

    sudo /etc/init.d/alation shell

  3. Run the following command to inspect the schema of your search index:

    curl localhost:9200/live/_mappings | grep dbtype.

  4. In the output, look for the dbtype field output:

    • If dbtype is text, then a rebuild is required.

      ../../_images/UpdateTo202335Text.png

    • If dbtype is keyword, then no action is needed.

      ../../_images/UpdateTo202335Keyword.png

  5. If you’ve determined that an index rebuild is required, proceed to index rebuilding.

Rebuild Search Index

Rebuilding the search index aligns it with the latest search schemas of version 2023.3.5 and can be performed without downtime. For detailed steps, see How to Rebuild Search Index Without Downtime.