Cloudera Docs

September 2022

This release of the Data Hub service introduces new features.

Database Upgrade and default major version change (September 27, 2022)

Newly deployed Data Lake and Data Hub clusters with Cloudera Runtime 7.2.7 or above are now configured to use a PostgreSQL version 11 database by default.

A new Database Upgrade capability is now available for existing Data Lake and Data Hub clusters. If you are running clusters on Cloudera Runtime version 7.2.6 or below, please upgrade to a more recent version before performing the database upgrade.

The major version of the database used by Data Lake or Data Hub clusters is now also displayed on the Database page of the respective service.

Cloudera strongly recommends that the Database Upgrade is performed on all clusters running PostgreSQL version 10 before November 10, 2022.

For more information, see Upgrading database.

Recipe type changes

The following recipe types have been renamed for Data Hub, Data Lake, and FreeIPA recipes:
  • pre-service-deployment (formerly pre-cluster-manager-start)
  • post-service-deployment (formerly post-cluster-install)

These changes will not affect existing recipe automation. For more information see Recipes.

Instance support (September 1, 2022)

The following new AWS instance types are supported in Data Hub:

  • m5dn.xlarge
  • m5dn.2xlarge
  • m5dn.4xlarge
  • m5dn.8xlarge
  • m5dn.12xlarge
  • m5dn.16xlarge
  • m5dn.24xlarge

Validate and prepare for upgrade (September 1, 2022)

Before you perform a Data Hub upgrade, you can run the new Validate and Prepare option to check for any configuration issues and begin the Cloudera Runtime parcel download and distribution. Using the validate and prepare option does not require downtime and makes the maintenance window for an upgrade shorter. For more information see Preparing for an upgrade.