ODP Stack Upgrade

Before upgrading the ODP stack, follow the below pre-requisites:

• The ODP-3.3.6.1-1 upgrade does not support the Spark2 and Oozie services. Ensure to stop and remove these services before performing the ODP stack upgrade.
• Ambari checks that your cluster has met the required prerequisites. A dialogue displays the following results:

• If any required prerequisites are not met, the result displays an error. You cannot proceed with the upgrade until you make the appropriate corrections and return to Perform Upgrade again.
• Ambari displays a list of configuration changes that occur during the upgrade.

• Follow the below steps to take effect of the Mpack services deletion from the cluster.

• On the Amabri UI, stop all the mpack services.
• Take a backup of the Mpack services configurations mentioned here: Pre-requisites for Configuration Backup.
• Delete the Mpack services from the Ambari UI.
• Uninstall the Mpack services from the Ambari server host.
• Restart the ambari-server.

Databases Backup

Ensure to take a backup of all backend databases for all required services. In this case, the backend database is MySQL, and the provided commands are for MySQL.

mkdir /tmp/ODP-server_db_bckp/
cd /tmp/ODP-server_db_bckp/
# for ambari
mysqldump --databases ambari > /tmp/ODP-server_db_bckp/ambari_mysql_bckp.sql
# for hive
mysqldump --databases hive > /tmp/ODP-server_db_bckp/hive_mysql_bckp.sql
# for rangerkms
mysqldump --databases rangerkms > /tmp/ODP-server_db_bckp/rangerkms_mysql_bckp.sql
# for rangerkms
mysqldump --databases ranger > /tmp/ODP-server_db_bckp/ranger_mysql_bckp.sql
# for hue
mysqldump --databases hue > /tmp/ODP-server_db_bckp/hue_mysql_bckp.sql
# for rangerkms
mysqldump --databases nifi > /tmp/ODP-server_db_bckp/nifi_mysql_bckp.sql
# please take backup for all required services

Disable Service Auto Start

Ensure to turn off Service Auto Start and disable Auto Start Settings.

Update the VDF file from Ambari UI

• Add the VDF file: Go to Admin section on top right and click on Manage Ambari option in the menu.

• Navigate to the Versions option on the left side and click REGISTER VERSION to add a new ODP Release.

• Add a new ODP version.

Sample VDF file

Refer the sample VDF file and copy it to a local machine to proceed further.

Install the Packages

• On the Stack and Versions page, click on the Install Packages to download the latest packages on the cluster.

• Click OK to proceed.
• Verify the installation progress.

• After the installation packages step is completed, you can see the Upgrade option. Click Upgrade to proceed further.

• Upon clicking on Upgrade, you can see the two upgrade options: Rolling and Express. Choose the Express Upgrade option to continue with the upgrade process.

• Click YES to continue with the Express Upgrade to ODP-3.3.6.1-1.

• Resume the upgrade, complete, and finalize it.

• If an error occurs that can safely be ignored, proceed to the next step.