Cloudera Docs

Performing a maintenance upgrade

A maintenance upgrade can be conducted on a single Data Hub cluster in an environment, or on multiple Data Hub clusters.

Complete the steps for each Data Hub cluster that you are upgrading.
  1. In the left-hand menu, click Data Hubs and then select the Data Hub to upgrade.
  2. Scroll to the bottom of the Data Hub details page and select the Upgrade tab.
  3. From the drop-down menu, select the Target Runtime Version.
  4. Click Upgrade.
  5. Monitor the upgrade progress using the Data Hub Event History tab.
  6. When the upgrade is complete, verify the new version. Note that the new version is reflected in the Platform Version, and not the cluster template name:
  7. If your cluster contains the Oozie service, after the maintenance upgrade is complete, re-install the Oozie shared libraries and YARN MapReduce Framework JARs.
    1. Navigate to the cluster’s Oozie service in CM and click the Status tab.
    2. Click Actions > Install Oozie ShareLib.
    3. Navigate to the cluster’s YARN service in CM and click the Status tab.
    4. Click Actions > Install YARN MapReduce Framework JARs.