Apache Ambari Minor Upgrade
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Preparing to Upgrade Ambari

  • Be sure to review the Ambari release notes for Known Issues and Behavioral Changes.

  • You must have root, administrative, or root-equivalent authorization on the Ambari Server host and all Ambari Agent hosts in the cluster.

  • You must backup the Ambari Server database.

  • You must make a safe copy of the Ambari Server configuration file found at /etc/ambari-server/conf/ambari.properties.

  • If your cluster is SSO-enabled, do not stop Knox before upgrading Ambari.


This guide specifically describes upgrading an Ambari-2.7.1-managed HDP-3.0.1 cluster to Ambari-2.7.4/HDP-3.1.4. If you need to upgrade from Ambari-2.6.x / HDP-2.6.x, use the instructions in the Ambari Major Upgrade Guide.

During Ambari upgrade, the existing /var/lib/ambari-server/ambari-env.sh file is overwritten and a backup copy of ambari-env.sh (with extension .rpmsave) is created. If you have manually modified ambari-env.sh (for example, to change Ambari Server heap), you will need to re-apply your changes to the new file.

Next Steps

Upgrade Ambari

More Information

Ambari Major Upgrade Guide

Upgrade SmartSense

Ambari 2.7.4 Release Notes