Pre Upgrade Tasks

In some situations, you must complete tasks before you upgrade.

Migrate to Java 11 or 17

Previous versions of Data Collector supported Java 8 in addition to Java 11 and Java 17. Starting with version 6.0, Data Collector supports only Java 11 and Java 17.

Before you upgrade to version 6.0 or later using an engine tarball file, verify that you have Java 11 or Java 17 installed on the engine machine. If you are upgrading using a Docker image, Control Hub bundles an appropriate Java version into the Docker image. For more information, see Java Version.

To migrate to Java 11 or 17, complete the following steps before upgrading to Data Collector 6.0 or later:

  1. Shut down Data Collector.
  2. Install Java 11 or 17 on the Data Collector machine.
  3. Restart Data Collector and verify that it works as expected.
  4. If any pipelines include the JavaScript Evaluator processor, open the pipelines and validate the scripts on the new Java version.