Cloudera Docs

Upgrading to Cloudera Runtime 7.3.1

Cloudera Runtime 7.3.1 introduces significant new features and improvements. As a result, if you are planning to upgrade the Cloudera Runtime version in your existing Data Lake or Cloudera Data Hub clusters to 7.3.1, you might be required to perform this in multiple steps.

Cloudera Runtime 7.3.1.200 Service Pack 1 (SP1)

Some of the important Cloudera Runtime 7.3.1.200 SP1 features include:
  • General Availability (GA) of Cloudera Operational Database on ARM-based architecture
  • Technical Preview of Cloudera Data Engineering Data Hub clusters on ARM-based architecture

For more information about the new features, known and fixed issues of the Cloudera Runtime services, see the Cloudera Runtime 7.3.1.200 SP1 Release Notes.

Direct upgrade to Cloudera Runtime 7.3.1.200 SP1 is supported from the following versions:
  • 7.3.1.100 CHF1
  • 7.3.1
  • 7.2.18 and its service packs
  • 7.2.17.200 and higher versions
Currently, there is no supported direct upgrade path to Cloudera Runtime 7.3.1.200 SP1 in the following cases:
  • from Cloudera Runtime 7.2.17.100 and lower versions
It is possible that you can still upgrade to one of the supported versions first, and then upgrade to Cloudera Runtime 7.3.1.200 SP1. For more information on these upgrade paths, see Identify your upgrade path - High-level upgrade steps for Cloudera Runtime 7.3.1 and 7.3.1.100.

Cloudera Runtime 7.3.1.100 Cumulative Hotfix 1 (CHF1)

Cloudera Runtime 7.3.1.100 CHF1 includes a set of fixed issues and improvements. For more information, see the Cloudera Runtime 7.3.1.100 CHF1 Release Notes.

Cloudera Runtime 7.3.1

Some of the important Cloudera Runtime 7.3.1 features include:

  • Unified Runtime for Cloudera on cloud and Cloudera on premises.
  • RHEL 8.10 is set as the default operating system.
  • Python 3.9 is set as the new default version.
  • OpenJDK 17 becomes the new default Java runtime version, new clusters will be launched with this version.

    OpenJDK 11 is no longer supported, and OpenJDK 11 clusters cannot be upgraded to Cloudera Runtime 7.3.1.

    After upgrading clusters from Cloudera Runtime 7.2.x to 7.3.1, the JDK version remains the same, that is, JDK8.

  • Spark 2 applications need to be rebased to Spark 3 as Spark 2 is no longer supported and clusters with Spark 2 will not be allowed to upgrade to Cloudera Runtime 7.3.1.
  • Zeppelin service is turned off for Cloudera Runtime 7.3.1 clusters and gets removed automatically during the upgrade.
  • Cloudera Data Engineering 1.23 and earlier versions are not supported on Cloudera Runtime 7.3.1
  • Spark in Cloudera AI is not certified to work with the Data Lake 7.3.1 version.
Direct upgrade to Cloudera Runtime 7.3.1 is supported from the following service packs:
  • 7.2.17.200
  • 7.2.17.300
  • 7.2.17.400
  • 7.2.17.500
  • 7.2.18.0
  • 7.2.18.100
  • 7.2.18.200

If your Cloudera Runtime version is not in the list of supported versions for a direct upgrade, it is possible that you can still upgrade to one of the above versions first, and then upgrade to Cloudera Runtime 7.3.1. For more information on these upgrade paths, see Identify your upgrade path.

Currently, there is no supported upgrade path to Cloudera Runtime 7.3.1 in the following cases:
  • from Cloudera Runtime 7.2.18.300 or later version
  • if the cluster uses JDK 11

Upgrade paths for these use cases will be made available in subsequent releases.