Upgrade Ambari Infra

Stop the service from Ambari Web UI

On every host in your cluster with an Infra Solr Client installed, run the following commands

sudo apt-get clean all
sudo apt-get update
sudo apt-get install ambari-infra-solr-client

Output (some lines)

The following packages will be upgraded:
  ambari-infra-solr-client
Unpacking ambari-infra-solr-client (2.5.0.3-7) over (2.4.1.0-22) ...
Setting up ambari-infra-solr-client (2.5.0.3-7) ...

Execute the following command on all hosts running an Ambari Infra Solr Instance

sudo apt-get install ambari-infra-solr

Output (some lines)

The following packages will be upgraded:
  ambari-infra-solr
Unpacking ambari-infra-solr (2.5.0.3-7) over (2.4.1.0-22) ...
Setting up ambari-infra-solr (2.5.0.3-7) ...

Start Ambari Infra service from Ambari Web UI