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
Cumulative Hotfix
On June 2, Cloudera Runtime 7.3.1.300 Service Pack 1 (SP1) Cumulative Hotfix 1 (CHF1) was released that includes a set of fixed issues and improvements. For more information, see the Cloudera Runtime 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.
Cumulative Hotfix
On March 18, Cloudera Runtime 7.3.1.100 Cumulative Hotfix 1 (CHF1) was released that includes a set of fixed issues and improvements. For more information, see the Cloudera Runtime Release Notes.

What to do next?

The following pages provide step-by-step guidance on identifying the upgrade path for your source cluster version and upgrading to Cloudera Runtime 7.3.1.