Cloudera Runtime Release NotesPDF version

Known Issues in Platform

Learn about the known issues in Platform for the Cloudera Runtime 7.3.1 release, the impact or changes to the functionality, and the workaround.

CDPD-80802, CDPD-79725: Runtime services on a running Cloudera Data Hub cluster might stop because of insufficient memory error

Starting with Cloudera 7.3.1.0, Java 17 is the default runtime instead of Java 8, and its memory management increases memory usage, potentially affecting system performance. Cloudera Data Hub cluster might report error states, and logs might show insufficient memory exceptions.

This issue is caused by high memory usage due to the G1 garbage collector on Java 17, leading to insufficient memory issues and thereby moving the Cloudera Data Hub cluster to an error state.

To mitigate this issue, you can perform either of the following actions, or both:

  • Reduce the Java heap size for affected services to prevent nodes from exceeding the available memory.
  • Increase physical memory for on cloud or on-premises instances running the affected services.